添加 Gradle 依赖与 build.gradle 配置初识

添加 Gradle 我们可以到我们添加 Maven 依赖的网站 
Maven Repository: Search/Browse/Explore 
http://mvnrepository.com/ 
上查找,例如我们搜索 spring-core 的依赖

添加 Gradle 依赖与 build.gradle 配置初识

点击 Gradle 选项卡,查看 Gradle 依赖的写法。

添加 Gradle 依赖与 build.gradle 配置初识

IDEA 工具默认帮助我们生成的 build.gradle

group 'com.winner'
version '1.0-SNAPSHOT'

apply plugin: 'java'
apply plugin: 'war'
apply plugin: 'idea'

//指定编译.java文件的jdk版本
sourceCompatibility = 1.8

repositories {
    //使gradle项目能够使用本地仓库
    mavenLocal()
    mavenCentral()
}

dependencies {
    //testCompile相当于pom.xml中scope值是test
    testCompile group: 'junit', name: 'junit', version: '4.11'
    compile group: 'org.springframework', name: 'spring-core', version: '4.3.3.RELEASE'
}

关于mavenLocal()的说明

    /**
     * Adds a repository which looks in the local Maven cache for dependencies. The name of the repository is
     * {@value org.gradle.api.artifacts.ArtifactRepositoryContainer#DEFAULT_MAVEN_LOCAL_REPO_NAME}.
     *
     * <p>Examples:
     * <pre autoTested="">
     * repositories {
     *     mavenLocal()
     * }
     * </pre>
     * </p>
     * <p>
     * The location for the repository is determined as follows (in order of precedence):
     * <ol>
     * <li>The value of system property 'maven.repo.local' if set;</li>
     * <li>The value of element &lt;localRepository&gt; of <code>~/.m2/settings.xml</code> if this file exists and element is set;</li>
     * <li>The value of element &lt;localRepository&gt; of <code>$M2_HOME/conf/settings.xml</code> (where <code>$M2_HOME</code> 
    is the value of the environment variable with that name) if this file exists and element is set;</li> * <li>The path <code>~/.m2/repository</code>.</li> * </ol> * </p> * * @return the added resolver */ MavenArtifactRepository mavenLocal();
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