如何在 gradle 中复制依赖库 JAR [英] how to copy the dependencies libraries JARs in gradle

问题描述

我用这个 build.gradle 得到了一个可运行的 jar

i got a runnable jar with this build.gradle

apply plugin: 'java'
apply plugin: 'application'

manifest.mainAttributes("Main-Class" : "com.test.HelloWorld")

repositories {
    mavenCentral()
}

dependencies {
    compile (
        'commons-codec:commons-codec:1.6',
        'commons-logging:commons-logging:1.1.1',
        'org.apache.httpcomponents:httpclient:4.2.1',
        'org.apache.httpcomponents:httpclient:4.2.1',
        'org.apache.httpcomponents:httpcore:4.2.1',
        'org.apache.httpcomponents:httpmime:4.2.1',
        'ch.qos.logback:logback-classic:1.0.6',
        'ch.qos.logback:logback-core:1.0.6',
        'org.slf4j:slf4j-api:1.6.0',
        'junit:junit:4.+'
    )
}

但它运行失败，因为找不到依赖项.

but it run failed, because the dependencies jars can't find.

然后我添加以下代码:

task copyToLib(type: Copy) {
    into "$buildDir/output/libs"
    from configurations.runtime
}

但没有任何改变...我找不到文件夹 output/libs...

but nothing change...i can't find the folder output/libs...

如何将依赖库 jar 复制到指定的文件夹或路径?

how can i copy the dependencies libs jars to a specified folder or path?

推荐答案

添加:

build.dependsOn(copyToLib)

当 gradle build 运行时，Gradle 构建任务以及任何依赖它的任务(由 dependsOn 声明).如果不设置 build.dependsOn(copyToLib)，Gradle 不会将复制任务与构建任务关联起来.

When gradle build runs, Gradle builds tasks and whatever tasks depend on it (declared by dependsOn). Without setting build.dependsOn(copyToLib), Gradle will not associate the copy task with the build task.

所以:

apply plugin: 'java'
apply plugin: 'application'

manifest.mainAttributes('Main-Class': 'com.test.HelloWorld')

repositories {
    mavenCentral()
}

dependencies {
    compile (
        'commons-codec:commons-codec:1.6',
        'commons-logging:commons-logging:1.1.1',
        'org.apache.httpcomponents:httpclient:4.2.1',
        'org.apache.httpcomponents:httpclient:4.2.1',
        'org.apache.httpcomponents:httpcore:4.2.1',
        'org.apache.httpcomponents:httpmime:4.2.1',
        'ch.qos.logback:logback-classic:1.0.6',
        'ch.qos.logback:logback-core:1.0.6',
        'org.slf4j:slf4j-api:1.6.0',
        'junit:junit:4.+'
    )
}

task copyToLib(type: Copy) {
    into "${buildDir}/output/libs"
    from configurations.runtime
}

build.dependsOn(copyToLib)

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