概述
Spring Cloud 项目都是基于 Spring Boot 进行开发,并且都是使用 Maven 做项目管理工具。在实际开发中,我们一般都会创建一个依赖管理项目作为 Maven 的 Parent 项目使用,这样做可以极大的方便我们对 Jar 包版本的统一管理。
创建依赖管理项目
创建一个工程名为 hello-spring-cloud-dependencies
的项目,pom.xml
配置文件如下:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 <?xml version="1.0" encoding="UTF-8"?> <project xmlns ="http://maven.apache.org/POM/4.0.0" xmlns:xsi ="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion > 4.0.0</modelVersion > <parent > <groupId > org.springframework.boot</groupId > <artifactId > spring-boot-starter-parent</artifactId > <version > 2.0.9.RELEASE</version > </parent > <groupId > com.example</groupId > <artifactId > hello-spring-cloud-dependencies</artifactId > <version > 1.0.0-SNAPSHOT</version > <packaging > pom</packaging > <name > hello-spring-cloud-dependencies</name > <url > http://wvincen.gitee.io</url > <inceptionYear > 2019-Now</inceptionYear > <properties > <java.version > 1.8</java.version > <project.build.sourceEncoding > UTF-8</project.build.sourceEncoding > <project.reporting.outputEncoding > UTF-8</project.reporting.outputEncoding > <spring-cloud.version > Finchley.SR3</spring-cloud.version > </properties > <dependencyManagement > <dependencies > <dependency > <groupId > org.springframework.cloud</groupId > <artifactId > spring-cloud-dependencies</artifactId > <version > ${spring-cloud.version}</version > <type > pom</type > <scope > import</scope > </dependency > </dependencies > </dependencyManagement > <build > <plugins > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-compiler-plugin</artifactId > <configuration > <showWarnings > true</showWarnings > </configuration > </plugin > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-jar-plugin</artifactId > <configuration > <archive > <addMavenDescriptor > false</addMavenDescriptor > </archive > </configuration > <executions > <execution > <configuration > <archive > <manifest > <addDefaultImplementationEntries > true</addDefaultImplementationEntries > <addDefaultSpecificationEntries > true</addDefaultSpecificationEntries > <addClasspath > true</addClasspath > </manifest > </archive > </configuration > </execution > </executions > </plugin > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-resources-plugin</artifactId > </plugin > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-install-plugin</artifactId > </plugin > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-clean-plugin</artifactId > </plugin > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-antrun-plugin</artifactId > </plugin > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-dependency-plugin</artifactId > </plugin > </plugins > <pluginManagement > <plugins > <plugin > <groupId > org.apache.maven.plugins</groupId > <artifactId > maven-javadoc-plugin</artifactId > <executions > <execution > <phase > prepare-package</phase > <goals > <goal > jar</goal > </goals > </execution > </executions > </plugin > <plugin > <groupId > net.alchim31.maven</groupId > <artifactId > yuicompressor-maven-plugin</artifactId > <version > 1.5.1</version > <executions > <execution > <phase > prepare-package</phase > <goals > <goal > compress</goal > </goals > </execution > </executions > <configuration > <encoding > UTF-8</encoding > <jswarn > false</jswarn > <nosuffix > true</nosuffix > <linebreakpos > 30000</linebreakpos > <force > true</force > <includes > <include > **/*.js</include > <include > **/*.css</include > </includes > <excludes > <exclude > **/*.min.js</exclude > <exclude > **/*.min.css</exclude > </excludes > </configuration > </plugin > </plugins > </pluginManagement > <resources > <resource > <directory > src/main/java</directory > <excludes > <exclude > **/*.java</exclude > </excludes > </resource > <resource > <directory > src/main/resources</directory > </resource > </resources > </build > <repositories > <repository > <id > aliyun-repos</id > <name > Aliyun Repository</name > <url > http://maven.aliyun.com/nexus/content/groups/public</url > <releases > <enabled > true</enabled > </releases > <snapshots > <enabled > false</enabled > </snapshots > </repository > <repository > <id > sonatype-repos</id > <name > Sonatype Repository</name > <url > https://oss.sonatype.org/content/groups/public</url > <releases > <enabled > true</enabled > </releases > <snapshots > <enabled > false</enabled > </snapshots > </repository > <repository > <id > sonatype-repos-s</id > <name > Sonatype Repository</name > <url > https://oss.sonatype.org/content/repositories/snapshots</url > <releases > <enabled > false</enabled > </releases > <snapshots > <enabled > true</enabled > </snapshots > </repository > <repository > <id > spring-snapshots</id > <name > Spring Snapshots</name > <url > https://repo.spring.io/snapshot</url > <snapshots > <enabled > true</enabled > </snapshots > </repository > <repository > <id > spring-milestones</id > <name > Spring Milestones</name > <url > https://repo.spring.io/milestone</url > <snapshots > <enabled > false</enabled > </snapshots > </repository > </repositories > <pluginRepositories > <pluginRepository > <id > aliyun-repos</id > <name > Aliyun Repository</name > <url > http://maven.aliyun.com/nexus/content/groups/public</url > <releases > <enabled > true</enabled > </releases > <snapshots > <enabled > false</enabled > </snapshots > </pluginRepository > </pluginRepositories > </project >
parent
:继承了 Spring Boot 的 Parent,表示我们是一个 Spring Boot 工程
package
:pom,表示该项目仅当做依赖项目,没有具体的实现代码
spring-cloud-dependencies
:在 properties 配置中预定义了版本号为 Finchley.SR3 ,表示我们的 Spring Cloud 使用的是 F 版
SR
: Service Release,SR1 表示第1个正式版本,一般同时标注 GA
:(GenerallyAvailable),表示稳定版本。
build
:配置了项目所需的各种插件
repositories
:配置项目下载依赖时的第三方库
在实际开发中,我们所有的项目都会依赖这个 dependencies 项目,整个项目周期中的所有第三方依赖的版本也都由该项目进行管理。
案例源码:https://github.com/V-Vincen/hello-spring-cloud
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