Calling Third-party API OpenFeign

[Calling Third-party API - OpenFeign] 2 DefaultFeignClient Case and Summary

Feign is a Java to HTTP client binder inspired by Retrofit, JAXRS-2.0, and WebSocket. Feign's first goal was reducing the complexity of binding Denominator uniformly to HTTP APIs regardless of ReSTfulness...

Posted by Mr.Vincent on 2021-01-31
Estimated Reading Time 54 Minutes
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Summary

根据 GitHub OpenFeign 官方文档，博主在这里对 Feign.builder() 模式进行了简要的封装。 同时对 Feign.builder() 配置协约 .contract(Contract contract) 做了进一步的说明和举例。contract 我暂时把它翻译为协约，这个属性在构造 Feign 对象实例时，用于定义 Feign 对象实例与之配合使用的注解。如果不设置 contract 属性，那么 Feign 默认使用自带的注解。博主在下文的封装中，同时提供了 SpringMvc 注解配置。用不习惯 Feign 自带的注解的话，不妨转换为 SpringMvc 的注解，毕竟 SpringMvc 的注解对于我们来说再熟悉不过了，同时也大大减少了我们的学习成本。那么博主这里直接上案例。

Case

Utils

DefaultFeignClient 

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/**
 * @author vincent
 * openfeign 默认构造器
 */
@Slf4j
public class DefaultFeignClient {
    private final static Map<ContractEnum, Contract> CONTRACT_MAP = ImmutableMap.of(
            ContractEnum.DEFAULT, new Contract.Default(),
            ContractEnum.SPRINGMVC, new SpringMvcContract()
    );

    private final static SSLSocketFactory SSL_SOCKET_FACTORY;

    private final static Map<String, Object> FEIGN_CLIENT_CACHE = new HashMap<>();

    static {
        try {
            SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null, (chain, authType) -> true).build();
            SSL_SOCKET_FACTORY = sslContext.getSocketFactory();
        } catch (Exception e) {
            log.error("Init SSLSocketFactory fail...");
            throw new RuntimeException(e);
        }
    }

    /**
     * Feign 构造器
     *
     * @param apiType            请求目标类
     * @param url                请求路径
     * @param contractEnum       定义接口上有效的注释 {@link Contract},  默认 feign 自带注解 {@link Contract.Default}, 也可使用 {@link SpringMvcContract} 注解
     * @param requestInterceptor 请求拦截器 {@link RequestInterceptor}（在请求前做一些特殊需求处理，需自己实现 {@link RequestInterceptor#apply(RequestTemplate)} 接口方法）
     * @param options            请求可选设置 {@link Request.Options}, 默认设置 {@link Request.Options#Options()}, 自定义设置 {@link Request.Options#Options(long, TimeUnit, long, TimeUnit, boolean)}
     * @param retryer            请求重试设置 {@link Retryer}, 默认设置 {@link Retryer.Default#Default()}, 自定义设置 {@link Retryer.Default#Default(long, long, int)}
     * @param errorDecoder       请求返回值解码器 {@link ErrorDecoder}, 默认设置 {@link ErrorDecoder.Default#decode(String, Response)},
     *                           当 HTTP {@link Response} 的 {@link Response#status()} 值不在 2xx 范围内时，可自定义实现 {@link ErrorDecoder.Default#decode(String, Response)} 接口方法）
     * @param <T>                请求目标类泛型
     * @return 返回 DefaultFeignClient 实例
     */
    private static <T> T createClient(Class<T> apiType, String url, ContractEnum contractEnum,
                                      Consumer<RequestTemplate> requestInterceptor, Options options,
                                      Retryer retryer, BiFunction<String, Response, Exception> errorDecoder) {
        return Feign.builder()
                .logger(new Slf4jLogger())
                .logLevel(Logger.Level.FULL)
                .requestInterceptor(requestInterceptor::accept)
                .contract(CONTRACT_MAP.get(contractEnum))
                .client(new Client.Default(SSL_SOCKET_FACTORY, NoopHostnameVerifier.INSTANCE))
                .options(options)
                .retryer(retryer)
                .encoder(DefaultFeignClient::encode)
                .decoder(DefaultFeignClient::decode)
                .errorDecoder(errorDecoder::apply)
                .target(apiType, url);
    }

    /**
     * 创建 DefaultFeignClient 单例
     *
     * @param apiType            请求目标类
     * @param url                请求路径
     * @param contractEnum       定义接口上有效的注释 {@link Contract},  默认 feign 自带注解 {@link Contract.Default}, 也可使用 {@link SpringMvcContract} 注解
     * @param requestInterceptor 请求拦截器 {@link RequestInterceptor}（在请求前做一些特殊需求处理，需自己实现 {@link RequestInterceptor#apply(RequestTemplate)} 接口方法）
     * @param options            请求可选设置 {@link Request.Options}, 默认设置 {@link Request.Options#Options()}, 自定义设置 {@link Request.Options#Options(long, TimeUnit, long, TimeUnit, boolean)}
     * @param retryer            请求重试设置 {@link Retryer}, 默认设置 {@link Retryer.Default#Default()}, 自定义设置 {@link Retryer.Default#Default(long, long, int)}
     * @param errorDecoder       请求返回值解码器 {@link ErrorDecoder}, 默认设置 {@link ErrorDecoder.Default#decode(String, Response)},
     *                           当 HTTP {@link Response} 的 {@link Response#status()} 值不在 2xx 范围内时，可自定义实现 {@link ErrorDecoder.Default#decode(String, Response)} 接口方法）
     * @param <T>                请求目标类泛型
     * @return 返回 DefaultFeignClient 单例
     */
    public static <T> T getSingleClient(Class<T> apiType, String url, ContractEnum contractEnum,
                                        Consumer<RequestTemplate> requestInterceptor, Options options,
                                        Retryer retryer, BiFunction<String, Response, Exception> errorDecoder) {
        T singletonClient = CheckedCast.cast(FEIGN_CLIENT_CACHE.get(apiType.getName()));
        if (Objects.isNull(singletonClient)) {
            synchronized (FEIGN_CLIENT_CACHE) {
                singletonClient = CheckedCast.cast(FEIGN_CLIENT_CACHE.get(apiType.getName()));
                if (Objects.isNull(singletonClient)) {
                    singletonClient = createClient(apiType, url, contractEnum, requestInterceptor, options, retryer, errorDecoder);
                    FEIGN_CLIENT_CACHE.put(apiType.getName(), singletonClient);
                }
            }
        }
        return singletonClient;
    }

    /**
     * 创建 DefaultFeignClient 单例
     *
     * @param apiType      请求目标类
     * @param url          请求路径
     * @param contractEnum 定义接口上有效的注释 {@link Contract},  默认 feign 自带注解 {@link Contract.Default}, 也可使用 {@link SpringMvcContract} 注解
     * @param <T>          请求目标类泛型
     * @return 返回 DefaultFeignClient 单例
     */
    public static <T> T getSingleClient(Class<T> apiType, String url, ContractEnum contractEnum) {
        return getSingleClient(apiType, url, contractEnum, requestTemplate -> {
        }, new Options(), new Retryer.Default(), (methodKey, response) -> new ErrorDecoder.Default().decode(methodKey, response));
    }

    /**
     * 创建 DefaultFeignClient 单例, 默认使用 springmvc 注解
     *
     * @param apiType 请求目标类
     * @param url     请求路径
     * @param <T>     请求目标类泛型
     * @return 返回 DefaultFeignClient 单例
     */
    public static <T> T getSingleClient(Class<T> apiType, String url) {
        return getSingleClient(apiType, url, ContractEnum.SPRINGMVC);
    }

    /**
     * 创建 DefaultFeignClient 实例
     *
     * @param apiType            请求目标类
     * @param url                请求路径
     * @param contractEnum       定义接口上有效的注释 {@link Contract},  默认 feign 自带注解 {@link Contract.Default}, 也可使用 {@link SpringMvcContract} 注解
     * @param requestInterceptor 请求拦截器 {@link RequestInterceptor}（在请求前做一些特殊需求处理，需自己实现 {@link RequestInterceptor#apply(RequestTemplate)} 接口方法）
     * @param options            请求可选设置 {@link Request.Options}, 默认设置 {@link Request.Options#Options()}, 自定义设置 {@link Request.Options#Options(long, TimeUnit, long, TimeUnit, boolean)}
     * @param retryer            请求重试设置 {@link Retryer}, 默认设置 {@link Retryer.Default#Default()}, 自定义设置 {@link Retryer.Default#Default(long, long, int)}
     * @param errorDecoder       请求返回值解码器 {@link ErrorDecoder}, 默认设置 {@link ErrorDecoder.Default#decode(String, Response)},
     *                           当 HTTP {@link Response} 的 {@link Response#status()} 值不在 2xx 范围内时，可自定义实现 {@link ErrorDecoder.Default#decode(String, Response)} 接口方法）
     * @param <T>                请求目标类泛型
     * @return 返回 DefaultFeignClient 实例
     */
    public static <T> T getClient(Class<T> apiType, String url, ContractEnum contractEnum,
                                  Consumer<RequestTemplate> requestInterceptor, Options options,
                                  Retryer retryer, BiFunction<String, Response, Exception> errorDecoder) {
        return createClient(apiType, url, contractEnum, requestInterceptor, options, retryer, errorDecoder);
    }

    /**
     * 创建 DefaultFeignClient 实例
     *
     * @param apiType      请求目标类
     * @param url          请求路径
     * @param contractEnum 定义接口上有效的注释 {@link Contract},  默认 feign 自带注解 {@link Contract.Default}, 也可使用 {@link SpringMvcContract} 注解
     * @param <T>          请求目标类泛型
     * @return 返回 DefaultFeignClient 实例
     */
    public static <T> T getClient(Class<T> apiType, String url, ContractEnum contractEnum) {
        return getClient(apiType, url, contractEnum, requestTemplate -> {
        }, new Options(), new Retryer.Default(), (methodKey, response) -> new ErrorDecoder.Default().decode(methodKey, response));
    }

    /**
     * 创建 DefaultFeignClient 实例, 默认使用 springmvc 注解
     *
     * @param apiType 请求目标类
     * @param url     请求路径
     * @param <T>     请求目标类泛型
     * @return 返回 DefaultFeignClient 实例
     */
    public static <T> T getClient(Class<T> apiType, String url) {
        return getClient(apiType, url, ContractEnum.SPRINGMVC);
    }

    /**
     * 发送请求时的编码器
     *
     * @param object   请求体中的内容（body 中的内容）
     * @param bodyType 请求体的类型
     * @param template 请求模板
     * @throws EncodeException 编码失败时异常
     */
    private static void encode(Object object, Type bodyType, RequestTemplate template) throws EncodeException {
        if (StringUtils.equalsIgnoreCase(template.method(), HttpMethod.GET.name()) || Objects.isNull(object)) {
            return;
        }
        new SpringFormEncoder(new SpringEncoder(HttpMessageConverters::new)).encode(object, bodyType, template);
    }

    /**
     * 请求响应后进行解密处理
     *
     * @param response 请求响应
     * @param type     接口方法定义的返回类型
     * @return 返回 object（就是 type 的类型）
     * @throws IOException    IO 异常
     * @throws FeignException Feign 异常
     */
    private static Object decode(Response response, Type type) throws IOException, FeignException {
        if (type == InputStream.class) {
            return response.body().asInputStream();
        }
        return new JacksonDecoder().decode(response, type);
    }
}

CheckedCast 

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/**
 * @author vincent
 * 强制类型转换
 */
public class CheckedCast {
    @SuppressWarnings("unchecked")
    public static <T> T cast(Object obj) {
        return (T) obj;
    }
}

ContractEnum 

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/**
 * @author vincent
 * feign 创建实例时, 与之配套使用的注解（这里暂时只支持 feign 本身默认的注解和 springmvc 的注解）
 */
public enum ContractEnum {
    DEFAULT("feign_default"),
    SPRINGMVC("springmvc");

    private final String value;

    ContractEnum(String value) {
        this.value = value;
    }

    public String getValue() {
        return value;
    }
}

Commons

ResponseDto

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/**
 * @param <T>
 * @author vincent
 * 返回前端数据封装
 */
public class ResponseDto<T> implements Serializable {
    private int status;
    private String msg;
    private T data;

    private ResponseDto() {
    }

    private ResponseDto(int status) {
        this.status = status;
    }

    private ResponseDto(int status, T data) {
        this.status = status;
        this.data = data;
    }

    private ResponseDto(int status, String msg, T data) {
        this.status = status;
        this.msg = msg;
        this.data = data;
    }

    private ResponseDto(int status, String msg) {
        this.status = status;
        this.msg = msg;
    }

    private ResponseDto(ResultCode responseCode, T data) {
        this(responseCode, null, data);
    }

    private ResponseDto(ResultCode responseCode, String detailMsg, T data) {
        this.status = responseCode.getCode();
        this.msg = Optional.ofNullable(detailMsg)
                .map(deMsg -> String.format("%s : %s", responseCode.getDesc(), deMsg))
                .orElse(responseCode.getDesc());
        this.data = data;
    }

    @JsonIgnore
    public boolean isSuccess() {
        return this.status == ResultCode.SUCCESS.getCode();
    }

    public int getStatus() {
        return status;
    }

    public String getMsg() {
        return msg;
    }

    public T getData() {
        return data;
    }

    public static <T> ResponseDto<T> success() {
        return success(null);
    }

    public static <T> ResponseDto<T> success(T data) {
        return new ResponseDto<>(ResultCode.SUCCESS, data);
    }

    public static <T> ResponseDto<T> success(String msg, T data) {
        return new ResponseDto<>(ResultCode.SUCCESS, msg, data);
    }

    public static <T> ResponseDto<T> error() {
        return error(ResultCode.ERROR, null);
    }

    public static <T> ResponseDto<T> error(String errorMsg) {
        return new ResponseDto<>(ResultCode.ERROR, errorMsg, null);
    }

    public static <T> ResponseDto<T> error(ResultCode responseCode) {
        return error(responseCode, null, null);
    }

    public static <T> ResponseDto<T> error(ResultCode responseCode, String errorMsg) {
        return error(responseCode, errorMsg, null);
    }

    public static <T> ResponseDto<T> error(ResultCode responseCode, String errorMsg, T data) {
        return new ResponseDto<>(responseCode, errorMsg, data);
    }

    public static <T> ResponseDto<T> exception(String exceptionMsg) {
        return new ResponseDto<>(ResultCode.EXCEPTION, exceptionMsg, null);
    }
}

ResultCode

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/**
 * @author vincent
 */
public interface ResultCode {
    /**
     * 获取 code
     *
     * @return int
     */
    int getCode();

    /**
     * 获取 desc
     *
     * @return String
     */
    String getDesc();

    BaseResultCode SUCCESS = BaseResultCode.SUCCESS;
    BaseResultCode ERROR = BaseResultCode.ERROR;
    BaseResultCode EXCEPTION = BaseResultCode.EXCEPTION;
}

BaseResultCode

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/**
 * @author vincent
 * 返回状态的枚举
 */
public enum BaseResultCode implements ResultCode {
    /**
     * SUCCESS: 0
     * ERROR: 1
     * Exception: -1
     */
    SUCCESS(0, "SUCCESS"),
    ERROR(1, "ERROR"),
    EXCEPTION(-1, "Exception");

    private final int code;
    private final String desc;

    BaseResultCode(int code, String desc) {
        this.code = code;
        this.desc = desc;
    }

    @Override
    public int getCode() {
        return code;
    }

    @Override
    public String getDesc() {
        return desc;
    }
}

Controller

FeignServerController

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/**
 * @author vincent
 */
@RestController
@RequestMapping(value = "/feign")
@Slf4j
public class FeignServerController {
    private final static String PATH = "/Users/vincent/IDEA_Project/my_project/calling-third-party-api/src/main/java/com/vincent/callingthirdpartyapi/open_feign/defandspmvc_contract";

    @PostMapping(value = "/postPhone")
    public ResponseDto<PhoneDto> postPhone(@RequestBody PhoneQueryDto queryDto, @RequestParam("param") String param) throws JsonProcessingException {
        log.info("postPhone 请求参数 queryDto: {}, param: {}...", queryDto, param);
        if (Objects.isNull(queryDto.getApp())) {
            return ResponseDto.error();
        }
        String jsonString = "{\n" +
                "    \"status\": \"ALREADY_ATT\",\n" +
                "    \"phone\": \"13800138000\",\n" +
                "    \"area\": \"010\",\n" +
                "    \"postno\": \"100000\",\n" +
                "    \"att\": \"中国,北京\",\n" +
                "    \"ctype\": \"北京移动全球通卡\",\n" +
                "    \"par\": \"1380013\",\n" +
                "    \"prefix\": \"138\",\n" +
                "    \"operators\": \"移动\",\n" +
                "    \"style_simcall\": \"中国,北京\",\n" +
                "    \"style_citynm\": \"中华人民共和国,北京市\"\n" +
                "}";
        PhoneDto phoneDto = new ObjectMapper().readValue(jsonString, PhoneDto.class);
        return ResponseDto.success(phoneDto);
    }

    @PostMapping(value = "/postFormTime")
    public ResponseDto<TimeDto> postFormTime(TimeQueryDto queryDto) throws JsonProcessingException {
        log.info("postFormTime 请求参数 queryDto: {}...", queryDto);
        if (Objects.isNull(queryDto.getApp())) {
            return ResponseDto.error();
        }
        String jsonString = "{\n" +
                "    \"timestamp\": \"1611728644\",\n" +
                "    \"datetime_1\": \"2021-01-27 14:24:04\",\n" +
                "    \"datetime_2\": \"2021年01月27日 14时24分04秒\",\n" +
                "    \"week_1\": \"3\",\n" +
                "    \"week_2\": \"星期三\",\n" +
                "    \"week_3\": \"周三\",\n" +
                "    \"week_4\": \"Wednesday\"\n" +
                "}";
        TimeDto timeDto = new ObjectMapper().readValue(jsonString, TimeDto.class);
        return ResponseDto.success(timeDto);
    }

    @GetMapping(value = "/getIDCard")
    public ResponseDto<IDCardDto> getIdCard(@RequestParam("app") String app,
                                            @RequestParam("idcard") String idcard,
                                            @RequestParam("appkey") String appkey,
                                            @RequestParam("sign") String sign,
                                            @RequestParam("format") String format) throws JsonProcessingException {
        log.info("getIDCard 请求参数 app: {}, idcard: {}, appkey: {}, sign: {}, format: {}...", app, idcard, appkey, sign, format);
        if (StringUtils.isBlank(app)) {
            return ResponseDto.error();
        }
        String jsonString = "{\n" +
                "    \"status\": \"ALREADY_ATT\",\n" +
                "    \"idcard\": \"110101199001011114\",\n" +
                "    \"par\": \"110101\",\n" +
                "    \"born\": \"1990年01月01日\",\n" +
                "    \"sex\": \"男\",\n" +
                "    \"att\": \"北京市 东城区 \",\n" +
                "    \"postno\": \"100000\",\n" +
                "    \"areano\": \"010\",\n" +
                "    \"style_simcall\": \"中国,北京\",\n" +
                "    \"style_citynm\": \"中华人民共和国,北京市\"\n" +
                "}";
        IDCardDto idCardDto = new ObjectMapper().readValue(jsonString, IDCardDto.class);
        return ResponseDto.success(idCardDto);
    }

    @GetMapping(value = "/getRestFul/{param}")
    public ResponseDto<String> getRestFul(@PathVariable("param") String param) {
        log.info("getRestFul 请求参数 param: {}...", param);
        if (Objects.isNull(param)) {
            return ResponseDto.error();
        }
        return ResponseDto.success("请求成功, 返回 param: " + param);
    }

    @PostMapping(value = "/upload")
    public ResponseDto<String> upload(@RequestParam("file") MultipartFile file) throws IOException {
        log.info("upload 请求参数 MultipartFile file: {}...", file);
        String name = file.getOriginalFilename();
        log.info("File name: {}...", name);
        file.transferTo(Paths.get(PATH).resolve("file2.txt"));
        return ResponseDto.success(name + " upload success...");
    }

    @GetMapping(value = "/downloadBySpringMvc")
    public FileSystemResource downloadBySpringMvc(@RequestParam("fileName") String fileName, HttpServletResponse response) throws UnsupportedEncodingException {
        log.info("downloadBySpringMvc 请求参数 String fileName: {}...", fileName);
        Path filePath = Paths.get(PATH).resolve(fileName);
        response.setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_OCTET_STREAM_VALUE);
        response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + URLEncoder.encode("fileName.txt", "UTF-8"));
        return new FileSystemResource(filePath);
    }

    @GetMapping(value = "/downloadByHttpServlet")
    public void downloadByHttpServlet(@RequestParam("fileName") String fileName, HttpServletResponse response) throws Exception {
        log.info("downloadByHttpServlet 请求参数 String fileName: {}...", fileName);
//        Path filePath = Paths.get(PATH).resolve(fileName);
//        response.getOutputStream().write(Files.readAllBytes(filePath));
//        IOUtils.copy(Files.newInputStream(filePath), response.getOutputStream());

        response.setHeader(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_OCTET_STREAM_VALUE);
        response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + URLEncoder.encode("fileName.txt", "UTF-8"));
        response.getOutputStream().write((fileName + "download success...").getBytes(StandardCharsets.UTF_8));
    }
}

Dto

PhoneDto

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/**
 * @author vincent
 */
@Data
public class PhoneDto implements Serializable {
    /**
     * status : ALREADY_ATT
     * phone : 13800138000
     * area : 010
     * postno : 100000
     * att : 中国,北京
     * ctype : 北京移动全球通卡
     * par : 1380013
     * prefix : 138
     * operators : 移动
     * style_simcall : 中国,北京
     * style_citynm : 中华人民共和国,北京市
     */

    @JsonProperty("status")
    private String status;
    /**
     * 查询的手机号
     */
    @JsonProperty("phone")
    private String phone;
    /**
     * 区号
     */
    @JsonProperty("area")
    private String area;
    /**
     * 邮编
     */
    @JsonProperty("postno")
    private String postno;
    /**
     * 归属地样式1
     */
    @JsonProperty("att")
    private String att;
    /**
     * 卡类型
     */
    @JsonProperty("ctype")
    private String ctype;
    /**
     * 手机号前缀
     */
    @JsonProperty("par")
    private String par;
    /**
     * 号段
     */
    @JsonProperty("prefix")
    private String prefix;
    /**
     * 所属运营商
     */
    @JsonProperty("operators")
    private String operators;
    /**
     * 归属地样式1
     */
    @JsonProperty("style_simcall")
    private String styleSimcall;
    /**
     * 归属地样式2
     */
    @JsonProperty("style_citynm")
    private String styleCitynm;
}

PhoneQueryDto

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/**
 * @author vincent
 */
@Data
public class PhoneQueryDto implements Serializable {

    private String app;
    /**
     * 手机号码, 例如:13800138000
     */
    private String phone;
    /**
     * 使用 API 的唯一凭证
     */
    private String appkey;
    /**
     * md5 后的 32 位密文
     */
    private String sign;
    /**
     * 返回数据格式: json、xml
     */
    private String format;
}

TimeDto

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/**
 * @author vincent
 */
@Data
public class TimeDto implements Serializable {

    /**
     * timestamp : 1611728644
     * datetime_1 : 2021-01-27 14:24:04
     * datetime_2 : 2021年01月27日 14时24分04秒
     * week_1 : 3
     * week_2 : 星期三
     * week_3 : 周三
     * week_4 : Wednesday
     */

    @JsonProperty("timestamp")
    private String timestamp;
    /**
     * datetime1
     */
    @JsonProperty("datetime_1")
    private String datetime1;
    /**
     * datetime2
     */
    @JsonProperty("datetime_2")
    private String datetime2;
    /**
     * week1
     */
    @JsonProperty("week_1")
    private String week1;
    /**
     * week2
     */
    @JsonProperty("week_2")
    private String week2;
    /**
     * week3
     */
    @JsonProperty("week_3")
    private String week3;
    /**
     * week4
     */
    @JsonProperty("week_4")
    private String week4;
}

TimeQueryDto

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/**
 * @author vincent
 */
@Data
public class TimeQueryDto implements Serializable {

    private String app;

    /**
     * 使用 API 的唯一凭证
     */
    private String appkey;
    /**
     * md5 后的 32 位密文
     */
    private String sign;
    /**
     * 返回数据格式: json、xml
     */
    private String format;
}

IDCardDto

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/**
 * @author vincent
 */
@Data
public class IDCardDto implements Serializable {
    /**
     * status : ALREADY_ATT
     * idcard : 110101199001011114
     * par : 110101
     * born : 1990年01月01日
     * sex : 男
     * att : 北京市东城区
     * postno : 100000
     * areano : 010
     * style_simcall : 中国,北京
     * style_citynm : 中华人民共和国,北京市
     */

    @JsonProperty("status")
    private String status;
    /**
     * 查询的身份证号码
     */
    @JsonProperty("idcard")
    private String idcard;
    /**
     * 身份证前缀
     */
    @JsonProperty("par")
    private String par;
    /**
     * 出生年月日
     */
    @JsonProperty("born")
    private String born;
    /**
     * 性别
     */
    @JsonProperty("sex")
    private String sex;
    /**
     * 归属地
     */
    @JsonProperty("att")
    private String att;
    /**
     * 邮编
     */
    @JsonProperty("postno")
    private String postno;
    /**
     * 区号
     */
    @JsonProperty("areano")
    private String areano;
    /**
     * 地区1
     */
    @JsonProperty("style_simcall")
    private String styleSimcall;
    /**
     * 地区2
     */
    @JsonProperty("style_citynm")
    private String styleCitynm;
}

FeignContract

DefaultContract

FeignDefaultContractApi
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/**
 * @author vincent
 */
public interface FeignDefaultContractApi {

    @RequestLine("POST /postPhone?param={param}")
    ResponseDto<PhoneDto> postPhone(PhoneQueryDto queryDto, @Param("param") String param);

    @RequestLine("POST /postFormTime")
    @Headers("Content-Type: application/x-www-form-urlencoded")
    ResponseDto<TimeDto> postFormTime(TimeQueryDto queryDto);

    @RequestLine("GET /getIDCard?app={app}&idcard={idcard}&appkey={appkey}&sign={sign}&format={format}")
    ResponseDto<IDCardDto> getIdCard(@Param("app") String app,
                                     @Param("idcard") String idcard,
                                     @Param("appkey") String appkey,
                                     @Param("sign") String sign,
                                     @Param("format") String format);

    @RequestLine("GET /getRestFul/{param}")
    ResponseDto<String> getRestFul(@Param("param") String param);

    @RequestLine("POST /upload")
    @Headers("Content-Type: multipart/form-data")
    ResponseDto<String> upload(@Param("file") File file);

    @RequestLine("GET /downloadBySpringMvc?fileName={fileName}")
    InputStream downloadBySpringMvc(@Param("fileName") String fileName);

    @RequestLine("GET /downloadByHttpServlet?fileName={fileName}")
    InputStream downloadByHttpServlet(@Param("fileName") String fileName);
}
FeignDefaultContractTest
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@Slf4j
public class FeignDefaultContractTest {

    private final static String PATH = "/Users/vincent/IDEA_Project/my_project/calling-third-party-api/src/test/java/com/vincent/callingthirdpartyapi/open_feign/defandspmvc_contract";

    private final static String URL = "http://localhost:8080/feign";

    private static FeignDefaultContractApi singleClient;

    @BeforeAll
    public static void createFeignClint() {
        singleClient = DefaultFeignClient.getSingleClient(FeignDefaultContractApi.class, URL, ContractEnum.DEFAULT);
    }

    @Test
    public void postTest() throws JsonProcessingException {
        PhoneQueryDto phoneQueryDto = new PhoneQueryDto();
        phoneQueryDto.setApp("phone.get");
        phoneQueryDto.setPhone("15021074475");
        phoneQueryDto.setAppkey("10003");
        phoneQueryDto.setSign("b59bc3ef6191eb9f747dd4e83c99f2a4");
        phoneQueryDto.setFormat("json");
        ResponseDto<PhoneDto> responseDto = singleClient.postPhone(phoneQueryDto, "phone");
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void postFormTest() throws JsonProcessingException {
        TimeQueryDto timeQueryDto = new TimeQueryDto();
        timeQueryDto.setApp("life.time");
        timeQueryDto.setAppkey("10003");
        timeQueryDto.setSign("b59bc3ef6191eb9f747dd4e83c99f2a4");
        timeQueryDto.setFormat("json");
        ResponseDto<TimeDto> responseDto = singleClient.postFormTime(timeQueryDto);
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void getTest() throws JsonProcessingException {
        ResponseDto<IDCardDto> responseDto = singleClient.getIdCard("idcard.get", "110101199001011114", "appkey", "sign", "json");
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void getRestFulTest() throws JsonProcessingException {
        ResponseDto<String> responseDto = singleClient.getRestFul("restful");
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void uploadTest() throws IOException {
        String name = "file.txt";
        Path filePath = Paths.get(PATH).resolve(name);
        ResponseDto<String> responseDto = singleClient.upload(filePath.toFile());
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void downloadTest() throws IOException {
        Path path = Paths.get(PATH);
        InputStream inSpring = singleClient.downloadBySpringMvc("file.txt");
        IOUtils.copy(inSpring, Files.newOutputStream(path.resolve("downbyspring.txt")));

        InputStream inServlet = singleClient.downloadByHttpServlet("file.txt");
        IOUtils.copy(inServlet, Files.newOutputStream(path.resolve("downbyservlet.txt")));
    }
}

FeignServerController 日志结果：

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2021-02-02 18:21:11.908  INFO 6571 --- [nio-8080-exec-1] c.v.c.o.d.c.FeignServerController        : upload 请求参数 MultipartFile file: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest$StandardMultipartFile@4aa3360c...
2021-02-02 18:21:11.908  INFO 6571 --- [nio-8080-exec-1] c.v.c.o.d.c.FeignServerController        : File name: file.txt...
2021-02-02 18:21:13.055  INFO 6571 --- [nio-8080-exec-2] c.v.c.o.d.c.FeignServerController        : postFormTime 请求参数 queryDto: TimeQueryDto(app=life.time, appkey=10003, sign=b59bc3ef6191eb9f747dd4e83c99f2a4, format=json)...
2021-02-02 18:21:13.143  INFO 6571 --- [nio-8080-exec-3] c.v.c.o.d.c.FeignServerController        : getIDCard 请求参数 app: idcard.get, idcard: 110101199001011114, appkey: appkey, sign: sign, format: json...
2021-02-02 18:21:13.820  INFO 6571 --- [nio-8080-exec-4] c.v.c.o.d.c.FeignServerController        : postPhone 请求参数 queryDto: PhoneQueryDto(app=phone.get, phone=15021074475, appkey=10003, sign=b59bc3ef6191eb9f747dd4e83c99f2a4, format=json), param: phone...
2021-02-02 18:21:13.845  INFO 6571 --- [nio-8080-exec-5] c.v.c.o.d.c.FeignServerController        : downloadBySpringMvc 请求参数 String fileName: file.txt...
2021-02-02 18:21:13.911  INFO 6571 --- [nio-8080-exec-6] c.v.c.o.d.c.FeignServerController        : downloadByHttpServlet 请求参数 String fileName: file.txt...
2021-02-02 18:21:13.934  INFO 6571 --- [nio-8080-exec-7] c.v.c.o.d.c.FeignServerController        : getRestFul 请求参数 param: restful...

FeignDefaultContractTest 日志结果：

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18:21:11.571 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] ---> POST http://localhost:8080/feign/upload HTTP/1.1
18:21:11.578 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] Content-Length: 167
18:21:11.578 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] Content-Type: multipart/form-data; charset=UTF-8; boundary=1776242a7f3
18:21:11.579 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] 
18:21:11.579 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] Binary data
18:21:11.579 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] ---> END HTTP (167-byte body)
18:21:12.138 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] <--- HTTP/1.1 200 (449ms)
18:21:12.138 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] connection: keep-alive
18:21:12.138 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] content-type: application/json
18:21:12.138 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] date: Tue, 02 Feb 2021 10:21:12 GMT
18:21:12.139 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] keep-alive: timeout=60
18:21:12.139 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] transfer-encoding: chunked
18:21:12.139 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] 
18:21:12.145 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] {"status":0,"msg":"SUCCESS","data":"file.txt upload success..."}
18:21:12.146 [main] DEBUG feign.Logger - [FeignDefaultContractApi#upload] <--- END HTTP (64-byte body)
18:21:13.011 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.defaultcontract.FeignDefaultContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : "file.txt upload success..."
}
18:21:13.028 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] ---> POST http://localhost:8080/feign/postFormTime HTTP/1.1
18:21:13.029 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] Content-Length: 76
18:21:13.030 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] Content-Type: application/x-www-form-urlencoded; charset=UTF-8
18:21:13.030 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] 
18:21:13.031 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] app=life.time&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json&appkey=10003
18:21:13.031 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] ---> END HTTP (76-byte body)
18:21:13.114 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] <--- HTTP/1.1 200 (83ms)
18:21:13.114 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] connection: keep-alive
18:21:13.115 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] content-type: application/json
18:21:13.115 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] date: Tue, 02 Feb 2021 10:21:13 GMT
18:21:13.115 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] keep-alive: timeout=60
18:21:13.115 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] transfer-encoding: chunked
18:21:13.115 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] 
18:21:13.116 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] {"status":0,"msg":"SUCCESS","data":{"timestamp":"1611728644","datetime_1":"2021-01-27 14:24:04","datetime_2":"2021年01月27日 14时24分04秒","week_1":"3","week_2":"星期三","week_3":"周三","week_4":"Wednesday"}}
18:21:13.116 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postFormTime] <--- END HTTP (219-byte body)
18:21:13.130 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.defaultcontract.FeignDefaultContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : {
    "timestamp" : "1611728644",
    "datetime_1" : "2021-01-27 14:24:04",
    "datetime_2" : "2021年01月27日 14时24分04秒",
    "week_1" : "3",
    "week_2" : "星期三",
    "week_3" : "周三",
    "week_4" : "Wednesday"
  }
}
18:21:13.136 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] ---> GET http://localhost:8080/feign/getIDCard?app=idcard.get&idcard=110101199001011114&appkey=appkey&sign=sign&format=json HTTP/1.1
18:21:13.136 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] ---> END HTTP (0-byte body)
18:21:13.168 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] <--- HTTP/1.1 200 (31ms)
18:21:13.168 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] connection: keep-alive
18:21:13.168 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] content-type: application/json
18:21:13.168 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] date: Tue, 02 Feb 2021 10:21:13 GMT
18:21:13.168 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] keep-alive: timeout=60
18:21:13.168 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] transfer-encoding: chunked
18:21:13.168 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] 
18:21:13.169 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] {"status":0,"msg":"SUCCESS","data":{"status":"ALREADY_ATT","idcard":"110101199001011114","par":"110101","born":"1990年01月01日","sex":"男","att":"北京市 东城区 ","postno":"100000","areano":"010","style_simcall":"中国,北京","style_citynm":"中华人民共和国,北京市"}}
18:21:13.169 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getIdCard] <--- END HTTP (287-byte body)
18:21:13.185 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.defaultcontract.FeignDefaultContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : {
    "status" : "ALREADY_ATT",
    "idcard" : "110101199001011114",
    "par" : "110101",
    "born" : "1990年01月01日",
    "sex" : "男",
    "att" : "北京市 东城区 ",
    "postno" : "100000",
    "areano" : "010",
    "style_simcall" : "中国,北京",
    "style_citynm" : "中华人民共和国,北京市"
  }
}
18:21:13.776 [main] DEBUG org.springframework.cloud.openfeign.support.SpringEncoder - Writing [PhoneQueryDto(app=phone.get, phone=15021074475, appkey=10003, sign=b59bc3ef6191eb9f747dd4e83c99f2a4, format=json)] using [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@72737dba]
18:21:13.806 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] ---> POST http://localhost:8080/feign/postPhone?param=phone HTTP/1.1
18:21:13.806 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] Content-Length: 116
18:21:13.806 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] Content-Type: application/json
18:21:13.806 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] 
18:21:13.806 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] {"app":"phone.get","phone":"15021074475","appkey":"10003","sign":"b59bc3ef6191eb9f747dd4e83c99f2a4","format":"json"}
18:21:13.806 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] ---> END HTTP (116-byte body)
18:21:13.827 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] <--- HTTP/1.1 200 (20ms)
18:21:13.827 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] connection: keep-alive
18:21:13.827 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] content-type: application/json
18:21:13.827 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] date: Tue, 02 Feb 2021 10:21:13 GMT
18:21:13.827 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] keep-alive: timeout=60
18:21:13.827 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] transfer-encoding: chunked
18:21:13.827 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] 
18:21:13.828 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] {"status":0,"msg":"SUCCESS","data":{"status":"ALREADY_ATT","phone":"13800138000","area":"010","postno":"100000","att":"中国,北京","ctype":"北京移动全球通卡","par":"1380013","prefix":"138","operators":"移动","style_simcall":"中国,北京","style_citynm":"中华人民共和国,北京市"}}
18:21:13.828 [main] DEBUG feign.Logger - [FeignDefaultContractApi#postPhone] <--- END HTTP (303-byte body)
18:21:13.835 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.defaultcontract.FeignDefaultContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : {
    "status" : "ALREADY_ATT",
    "phone" : "13800138000",
    "area" : "010",
    "postno" : "100000",
    "att" : "中国,北京",
    "ctype" : "北京移动全球通卡",
    "par" : "1380013",
    "prefix" : "138",
    "operators" : "移动",
    "style_simcall" : "中国,北京",
    "style_citynm" : "中华人民共和国,北京市"
  }
}
18:21:13.838 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] ---> GET http://localhost:8080/feign/downloadBySpringMvc?fileName=file.txt HTTP/1.1
18:21:13.839 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] ---> END HTTP (0-byte body)
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] <--- HTTP/1.1 200 (43ms)
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] accept-ranges: bytes
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] connection: keep-alive
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] content-disposition: attachment; filename=fileName.txt
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] content-length: 4
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] content-type: application/json
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] date: Tue, 02 Feb 2021 10:21:13 GMT
18:21:13.883 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] keep-alive: timeout=60
18:21:13.884 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] 
18:21:13.884 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] file
18:21:13.884 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadBySpringMvc] <--- END HTTP (4-byte body)
18:21:13.908 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] ---> GET http://localhost:8080/feign/downloadByHttpServlet?fileName=file.txt HTTP/1.1
18:21:13.908 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] ---> END HTTP (0-byte body)
18:21:13.913 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] <--- HTTP/1.1 200 (4ms)
18:21:13.913 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] connection: keep-alive
18:21:13.913 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] content-disposition: attachment; filename=fileName.txt
18:21:13.913 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] content-length: 27
18:21:13.914 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] content-type: application/octet-stream
18:21:13.914 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] date: Tue, 02 Feb 2021 10:21:13 GMT
18:21:13.914 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] keep-alive: timeout=60
18:21:13.914 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] 
18:21:13.914 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] file.txtdownload success...
18:21:13.914 [main] DEBUG feign.Logger - [FeignDefaultContractApi#downloadByHttpServlet] <--- END HTTP (27-byte body)
18:21:13.921 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] ---> GET http://localhost:8080/feign/getRestFul/restful HTTP/1.1
18:21:13.922 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] ---> END HTTP (0-byte body)
18:21:13.940 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] <--- HTTP/1.1 200 (17ms)
18:21:13.940 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] connection: keep-alive
18:21:13.940 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] content-type: application/json
18:21:13.941 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] date: Tue, 02 Feb 2021 10:21:13 GMT
18:21:13.941 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] keep-alive: timeout=60
18:21:13.941 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] transfer-encoding: chunked
18:21:13.941 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] 
18:21:13.941 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] {"status":0,"msg":"SUCCESS","data":"请求成功, 返回 param: restful"}
18:21:13.942 [main] DEBUG feign.Logger - [FeignDefaultContractApi#getRestFul] <--- END HTTP (73-byte body)
18:21:13.947 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.defaultcontract.FeignDefaultContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : "请求成功, 返回 param: restful"
}

SpringMvcContract

FeignSpringMvcContractApi
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/**
 * @author vincent
 */
public interface FeignSpringMvcContractApi {

    @PostMapping(value = "/postPhone")
    ResponseDto<PhoneDto> postPhone(@RequestBody PhoneQueryDto queryDto, @RequestParam("param") String param);

    @PostMapping(value = "/postFormTime", consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
    ResponseDto<TimeDto> postFormTime(TimeQueryDto queryDto);

    @GetMapping(value = "/getIDCard")
    ResponseDto<IDCardDto> getIdCard(@RequestParam("app") String app,
                                     @RequestParam("idcard") String idcard,
                                     @RequestParam("appkey") String appkey,
                                     @RequestParam("sign") String sign,
                                     @RequestParam("format") String format);

    @GetMapping(value = "/getRestFul/{param}")
    ResponseDto<String> getRestFul(@PathVariable("param") String param);

    @PostMapping(value = "/upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    ResponseDto<String> upload(@RequestPart("file") MultipartFile file);

    @GetMapping(value = "/downloadBySpringMvc")
    InputStream downloadBySpringMvc(@RequestParam("fileName") String fileName);

    @GetMapping(value = "/downloadByHttpServlet")
    InputStream downloadByHttpServlet(@RequestParam("fileName") String fileName);
}
FeignSpringMvcContractTest
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@Slf4j
public class FeignSpringMvcContractTest {

    private final static String PATH = "/Users/vincent/IDEA_Project/my_project/calling-third-party-api/src/test/java/com/vincent/callingthirdpartyapi/open_feign/defandspmvc_contract";

    private final static String URL = "http://localhost:8080/feign";

    private static FeignSpringMvcContractApi singleClient;

    @BeforeAll
    public static void createFeignClint() {
        singleClient = DefaultFeignClient.getSingleClient(FeignSpringMvcContractApi.class, URL, ContractEnum.SPRINGMVC);
    }

    @Test
    public void postTest() throws JsonProcessingException {
        PhoneQueryDto phoneQueryDto = new PhoneQueryDto();
        phoneQueryDto.setApp("phone.get");
        phoneQueryDto.setPhone("15021074475");
        phoneQueryDto.setAppkey("10003");
        phoneQueryDto.setSign("b59bc3ef6191eb9f747dd4e83c99f2a4");
        phoneQueryDto.setFormat("json");
        ResponseDto<PhoneDto> responseDto = singleClient.postPhone(phoneQueryDto, "phone");
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void postFormTest() throws JsonProcessingException {
        TimeQueryDto timeQueryDto = new TimeQueryDto();
        timeQueryDto.setApp("life.time");
        timeQueryDto.setAppkey("10003");
        timeQueryDto.setSign("b59bc3ef6191eb9f747dd4e83c99f2a4");
        timeQueryDto.setFormat("json");
        ResponseDto<TimeDto> responseDto = singleClient.postFormTime(timeQueryDto);
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void getTest() throws JsonProcessingException {
        ResponseDto<IDCardDto> responseDto = singleClient.getIdCard("idcard.get", "110101199001011114", "appkey", "sign", "json");
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void getRestFulTest() throws JsonProcessingException {
        ResponseDto<String> responseDto = singleClient.getRestFul("restful");
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void uploadTest() throws IOException {
        String name = "file.txt";
        Path filePath = Paths.get(PATH).resolve(name);
        String originalFileName = "file.txt";
        String contentType = "application/octet-stream";
        byte[] content = Files.readAllBytes(filePath);
        MultipartFile multipartFile = new MockMultipartFile(name, originalFileName, contentType, content);
        ResponseDto<String> responseDto = singleClient.upload(multipartFile);
        log.info(new ObjectMapper().writerWithDefaultPrettyPrinter().writeValueAsString(responseDto));
    }

    @Test
    public void downloadTest() throws IOException {
        Path path = Paths.get(PATH);
        InputStream inSpring = singleClient.downloadBySpringMvc("file.txt");
        IOUtils.copy(inSpring, Files.newOutputStream(path.resolve("downbyspring.txt")));

        InputStream inServlet = singleClient.downloadByHttpServlet("file.txt");
        IOUtils.copy(inServlet, Files.newOutputStream(path.resolve("downbyservlet.txt")));
    }
}

FeignServerController 日志结果：

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2021-02-02 18:23:09.929  INFO 6571 --- [nio-8080-exec-9] c.v.c.o.d.c.FeignServerController        : upload 请求参数 MultipartFile file: org.springframework.web.multipart.support.StandardMultipartHttpServletRequest$StandardMultipartFile@62082936...
2021-02-02 18:23:09.929  INFO 6571 --- [nio-8080-exec-9] c.v.c.o.d.c.FeignServerController        : File name: file.txt...
2021-02-02 18:23:10.877  INFO 6571 --- [io-8080-exec-10] c.v.c.o.d.c.FeignServerController        : postFormTime 请求参数 queryDto: TimeQueryDto(app=life.time, appkey=10003, sign=b59bc3ef6191eb9f747dd4e83c99f2a4, format=json)...
2021-02-02 18:23:10.917  INFO 6571 --- [nio-8080-exec-1] c.v.c.o.d.c.FeignServerController        : getIDCard 请求参数 app: idcard.get, idcard: 110101199001011114, appkey: appkey, sign: sign, format: json...
2021-02-02 18:23:11.376  INFO 6571 --- [nio-8080-exec-2] c.v.c.o.d.c.FeignServerController        : postPhone 请求参数 queryDto: PhoneQueryDto(app=phone.get, phone=15021074475, appkey=10003, sign=b59bc3ef6191eb9f747dd4e83c99f2a4, format=json), param: phone...
2021-02-02 18:23:11.398  INFO 6571 --- [nio-8080-exec-3] c.v.c.o.d.c.FeignServerController        : downloadBySpringMvc 请求参数 String fileName: file.txt...
2021-02-02 18:23:11.421  INFO 6571 --- [nio-8080-exec-4] c.v.c.o.d.c.FeignServerController        : downloadByHttpServlet 请求参数 String fileName: file.txt...
2021-02-02 18:23:11.435  INFO 6571 --- [nio-8080-exec-5] c.v.c.o.d.c.FeignServerController        : getRestFul 请求参数 param: restful...

FeignSpringMvcContractTest 日志结果：

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18:23:09.894 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] ---> POST http://localhost:8080/feign/upload HTTP/1.1
18:23:09.899 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] Content-Length: 181
18:23:09.899 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] Content-Type: multipart/form-data; charset=UTF-8; boundary=1776244763d
18:23:09.899 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] 
18:23:09.899 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] Binary data
18:23:09.899 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] ---> END HTTP (181-byte body)
18:23:10.053 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] <--- HTTP/1.1 200 (38ms)
18:23:10.053 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] connection: keep-alive
18:23:10.053 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] content-type: application/json
18:23:10.053 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] date: Tue, 02 Feb 2021 10:23:09 GMT
18:23:10.053 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] keep-alive: timeout=60
18:23:10.054 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] transfer-encoding: chunked
18:23:10.054 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] 
18:23:10.062 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] {"status":0,"msg":"SUCCESS","data":"file.txt upload success..."}
18:23:10.063 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#upload] <--- END HTTP (64-byte body)
18:23:10.849 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.springmvccontract.FeignSpringMvcContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : "file.txt upload success..."
}
18:23:10.870 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] ---> POST http://localhost:8080/feign/postFormTime HTTP/1.1
18:23:10.870 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] Content-Length: 76
18:23:10.871 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] Content-Type: application/x-www-form-urlencoded; charset=UTF-8
18:23:10.871 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] 
18:23:10.871 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] app=life.time&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json&appkey=10003
18:23:10.871 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] ---> END HTTP (76-byte body)
18:23:10.885 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] <--- HTTP/1.1 200 (13ms)
18:23:10.885 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] connection: keep-alive
18:23:10.885 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] content-type: application/json
18:23:10.885 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] date: Tue, 02 Feb 2021 10:23:09 GMT
18:23:10.885 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] keep-alive: timeout=60
18:23:10.885 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] transfer-encoding: chunked
18:23:10.885 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] 
18:23:10.886 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] {"status":0,"msg":"SUCCESS","data":{"timestamp":"1611728644","datetime_1":"2021-01-27 14:24:04","datetime_2":"2021年01月27日 14时24分04秒","week_1":"3","week_2":"星期三","week_3":"周三","week_4":"Wednesday"}}
18:23:10.886 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postFormTime] <--- END HTTP (219-byte body)
18:23:10.902 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.springmvccontract.FeignSpringMvcContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : {
    "timestamp" : "1611728644",
    "datetime_1" : "2021-01-27 14:24:04",
    "datetime_2" : "2021年01月27日 14时24分04秒",
    "week_1" : "3",
    "week_2" : "星期三",
    "week_3" : "周三",
    "week_4" : "Wednesday"
  }
}
18:23:10.914 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] ---> GET http://localhost:8080/feign/getIDCard?app=idcard.get&idcard=110101199001011114&appkey=appkey&sign=sign&format=json HTTP/1.1
18:23:10.914 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] ---> END HTTP (0-byte body)
18:23:10.924 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] <--- HTTP/1.1 200 (9ms)
18:23:10.924 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] connection: keep-alive
18:23:10.924 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] content-type: application/json
18:23:10.924 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] date: Tue, 02 Feb 2021 10:23:09 GMT
18:23:10.925 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] keep-alive: timeout=60
18:23:10.925 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] transfer-encoding: chunked
18:23:10.925 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] 
18:23:10.925 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] {"status":0,"msg":"SUCCESS","data":{"status":"ALREADY_ATT","idcard":"110101199001011114","par":"110101","born":"1990年01月01日","sex":"男","att":"北京市 东城区 ","postno":"100000","areano":"010","style_simcall":"中国,北京","style_citynm":"中华人民共和国,北京市"}}
18:23:10.925 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getIdCard] <--- END HTTP (287-byte body)
18:23:10.937 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.springmvccontract.FeignSpringMvcContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : {
    "status" : "ALREADY_ATT",
    "idcard" : "110101199001011114",
    "par" : "110101",
    "born" : "1990年01月01日",
    "sex" : "男",
    "att" : "北京市 东城区 ",
    "postno" : "100000",
    "areano" : "010",
    "style_simcall" : "中国,北京",
    "style_citynm" : "中华人民共和国,北京市"
  }
}
18:23:11.338 [main] DEBUG org.springframework.cloud.openfeign.support.SpringEncoder - Writing [PhoneQueryDto(app=phone.get, phone=15021074475, appkey=10003, sign=b59bc3ef6191eb9f747dd4e83c99f2a4, format=json)] using [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@5e54d2a2]
18:23:11.371 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] ---> POST http://localhost:8080/feign/postPhone?param=phone HTTP/1.1
18:23:11.371 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] Content-Length: 116
18:23:11.371 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] Content-Type: application/json
18:23:11.371 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] 
18:23:11.371 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] {"app":"phone.get","phone":"15021074475","appkey":"10003","sign":"b59bc3ef6191eb9f747dd4e83c99f2a4","format":"json"}
18:23:11.372 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] ---> END HTTP (116-byte body)
18:23:11.380 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] <--- HTTP/1.1 200 (8ms)
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] connection: keep-alive
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] content-type: application/json
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] date: Tue, 02 Feb 2021 10:23:11 GMT
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] keep-alive: timeout=60
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] transfer-encoding: chunked
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] 
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] {"status":0,"msg":"SUCCESS","data":{"status":"ALREADY_ATT","phone":"13800138000","area":"010","postno":"100000","att":"中国,北京","ctype":"北京移动全球通卡","par":"1380013","prefix":"138","operators":"移动","style_simcall":"中国,北京","style_citynm":"中华人民共和国,北京市"}}
18:23:11.381 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#postPhone] <--- END HTTP (303-byte body)
18:23:11.391 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.springmvccontract.FeignSpringMvcContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : {
    "status" : "ALREADY_ATT",
    "phone" : "13800138000",
    "area" : "010",
    "postno" : "100000",
    "att" : "中国,北京",
    "ctype" : "北京移动全球通卡",
    "par" : "1380013",
    "prefix" : "138",
    "operators" : "移动",
    "style_simcall" : "中国,北京",
    "style_citynm" : "中华人民共和国,北京市"
  }
}
18:23:11.394 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] ---> GET http://localhost:8080/feign/downloadBySpringMvc?fileName=file.txt HTTP/1.1
18:23:11.395 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] ---> END HTTP (0-byte body)
18:23:11.403 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] <--- HTTP/1.1 200 (7ms)
18:23:11.403 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] accept-ranges: bytes
18:23:11.403 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] connection: keep-alive
18:23:11.403 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] content-disposition: attachment; filename=fileName.txt
18:23:11.404 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] content-length: 4
18:23:11.404 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] content-type: application/json
18:23:11.404 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] date: Tue, 02 Feb 2021 10:23:11 GMT
18:23:11.404 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] keep-alive: timeout=60
18:23:11.404 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] 
18:23:11.404 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] file
18:23:11.404 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadBySpringMvc] <--- END HTTP (4-byte body)
18:23:11.418 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] ---> GET http://localhost:8080/feign/downloadByHttpServlet?fileName=file.txt HTTP/1.1
18:23:11.418 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] ---> END HTTP (0-byte body)
18:23:11.425 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] <--- HTTP/1.1 200 (5ms)
18:23:11.425 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] connection: keep-alive
18:23:11.426 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] content-disposition: attachment; filename=fileName.txt
18:23:11.426 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] content-length: 27
18:23:11.427 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] content-type: application/octet-stream
18:23:11.427 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] date: Tue, 02 Feb 2021 10:23:11 GMT
18:23:11.427 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] keep-alive: timeout=60
18:23:11.427 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] 
18:23:11.428 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] file.txtdownload success...
18:23:11.428 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#downloadByHttpServlet] <--- END HTTP (27-byte body)
18:23:11.432 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] ---> GET http://localhost:8080/feign/getRestFul/restful HTTP/1.1
18:23:11.432 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] ---> END HTTP (0-byte body)
18:23:11.436 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] <--- HTTP/1.1 200 (4ms)
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] connection: keep-alive
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] content-type: application/json
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] date: Tue, 02 Feb 2021 10:23:11 GMT
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] keep-alive: timeout=60
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] transfer-encoding: chunked
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] 
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] {"status":0,"msg":"SUCCESS","data":"请求成功, 返回 param: restful"}
18:23:11.437 [main] DEBUG feign.Logger - [FeignSpringMvcContractApi#getRestFul] <--- END HTTP (73-byte body)
18:23:11.443 [main] INFO com.vincent.callingthirdpartyapi.open_feign.defandspmvc_contract.springmvccontract.FeignSpringMvcContractTest - {
  "status" : 0,
  "msg" : "SUCCESS",
  "data" : "请求成功, 返回 param: restful"
}

Case Source Code：https://github.com/V-Vincen/calling-third-party-api

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