IDEA 2020.2 +Gradle 6.6.1 + Spring Boot 2.3.4 创建多模块项目的超详细教程

环境介绍 IDEA

我用的是2020.2

Gradle

安装参考 Gradle安装配置

我这安装的是6.6.1

C:\Users\herion>gradle -v

------------------------------------------------------------
Gradle 6.6.1
------------------------------------------------------------

Build time:  2020-08-25 16:29:12 UTC
Revision:   f2d1fb54a951d8b11d25748e4711bec8d128d7e3

Kotlin:    1.3.72
Groovy:    2.5.12
Ant:     Apache Ant(TM) version 1.10.8 compiled on May 10 2020
JVM:     1.8.0_211 (Oracle Corporation 25.211-b12)
OS:      Windows 10 10.0 amd64

创建 gradle-parent New Project --> Spring Initalizr 选择jdk版本，我这里使用1.8

Next

–> 根据需求修改 Group、Artifact、version 、Type、name、package 等，选择所需依赖创建项目

创建成功后删除src 目录

创建子模块 gradle-demo

选中gradle-parent–> new -->Module

创建子模块操作与创建gradle-parent 雷同，这里就不做复述了，创建好gradle-demo后在gradle-parent的settings.gradle 中引入模块依赖 include ‘gradle-demo'

删除gradle-demo 中settings.gradle文件，否则不能喝gradle-parent建立依赖关系

定义gradle 自身所需资源

buildscript {
  ext {
    springBootVersion = '2.3.4.RELEASE'
    springBootManagementVersion = '1.0.8.RELEASE'
    springCloudVersion = 'Hoxton.SR6'
    REPOSITORY_HOME = "http://maven.aliyun.com"
  }
  repositories {
    maven { url '${REPOSITORY_HOME}/nexus/content/groups/public/' }
    mavenCentral()
    maven { url 'https://repo.spring.io/snapshot' }
    maven { url 'https://repo.spring.io/milestone' }
  }
  dependencies {
    classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
    classpath("io.spring.gradle:dependency-management-plugin:${springBootManagementVersion}")
  }
}

修改gradle-parent项目build.gradle 配置全项目通用配置

allprojects {
  apply plugin: 'java'
  apply plugin: 'idea'
  group = 'com.herion'
  sourceCompatibility = JavaVersion.VERSION_1_8
  targetCompatibility = JavaVersion.VERSION_1_8
}

子项目通用配置

subprojects {
  apply plugin: 'org.springframework.boot'
  apply plugin: 'io.spring.dependency-management'
  [compileJava, compileTestJava, javadoc]*.options*.encoding = 'UTF-8'
  //仓库
  repositories {
    maven { url '${REPOSITORY_HOME}/nexus/content/groups/public/' }
    mavenCentral()
    maven { url 'https://repo.spring.io/snapshot' }
    maven { url 'https://repo.spring.io/milestone' }
  }

  dependencies {
    implementation 'org.springframework.boot:spring-boot-starter'
    compileOnly 'org.projectlombok:lombok'
    developmentOnly 'org.springframework.boot:spring-boot-devtools'
    annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation('org.springframework.boot:spring-boot-starter-test') {
      exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
  }

  dependencyManagement {
    imports { mavenBom("org.springframework.boot:spring-boot-dependencies:${springBootVersion}") }
    imports { mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}" }
  }

  test {
    useJUnitPlatform()
  }
}

发布插件配置

 /**
   * 发布插件
   */
  publishing {
    publications {
      mavenJava(MavenPublication) {
        from components.java
        versionMapping {
          usage('java-api') {
            fromResolutionOf('runtimeClasspath')
          }
          usage('java-runtime') {
            fromResolutionResult()
          }
        }
      }
    }
    // 发布仓库
    repositories {
      maven {
        // TODO 换成自己的私服地址
        def releasesRepoUrl = "http://my.repo.com/nexus/repository/maven-releases"
        def snapshotsRepoUrl = "http://my.repo..com/nexus/repository/maven-snapshots"
        url = version.endsWith('SNAPSHOT') ? snapshotsRepoUrl : releasesRepoUrl
        credentials {
          username nexusUser
          password nexusPassword
        }
      }
    }
  }

  configurations {
    [apiElements, runtimeElements].each {
      it.outgoing.artifacts.removeIf { it.buildDependencies.getDependencies(null).contains(jar) }
      it.outgoing.artifact(bootJar)
    }
  }

验证

Gradle 查看所有项目

 gradle projects
> Task :projects
------------------------------------------------------------
Root project
------------------------------------------------------------
Root project 'gradle-parent'
+--- Project ':gradle-common'
+--- Project ':gradle-demo'
\--- Project ':gradle-demo2'

To see a list of the tasks of a project, run gradle <project-path>:tasks
For example, try running gradle :gradle-common:tasks

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.6.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD SUCCESSFUL in 4s
1 actionable task: 1 executed

编译项目

$ gradle build

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.6.1/userguide/command_line_interface.html#sec:command_line_warnings

BUILD SUCCESSFUL in 5s
12 actionable tasks: 12 up-to-date

执行结果

发布jar包到nexus 命令

$ gradle publishMavenJavaPublicationToMavenRepository
> Task :gradle-common:publishMavenJavaPublicationToMavenRepository
> Task :gradle-demo:publishMavenJavaPublicationToMavenRepository
> Task :gradle-demo2:publishMavenJavaPublicationToMavenRepository
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.6.1/userguide/command_line_interface.html#sec:command_line_warnings
BUILD SUCCESSFUL in 24s
16 actionable tasks: 13 executed, 3 up-to-date

执行结果

gradle-demo 验证 启动项目

浏览器访问
http://localhost:8080/helllo?name=herion

demo 源码地址

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