使用脱机gradle运行标准java项目时出现Android Studio错误

Question

我在离线模式中使用Android Studio 2.2和Gradle。Gradle Home的值为/path/to/gradle/gradle-2.14.1。我可以运行Android项目，但现在我想运行一个Java标准类来测试一些Java代码，然后再在Android项目中使用它们。所以我跟着this answer。但是当我运行类时，我得到了如下错误：

Error:Gradle: A problem occurred configuring root project 'demo'.
 > Could not resolve all dependencies for configuration ':classpath'.
 > Could not resolve com.安卓.tools.build:gradle:2.2.2.
 Required by:
     :demo:unspecified
  > No cached version of com.安卓.tools.build:gradle:2.2.2 available for  offline mode.

这里还有Java库build.gradle的内容：

apply plugin: 'java'

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
}

sourceCompatibility = "1.7"
targetCompatibility = "1.7"

我怎样才能解决这个问题？（我不想使用其他IDE或为Gradle启用联机模式）

Answer 1

你必须下载com.android.tools.build:gradle:2.2.2

这需要互联网。包gradle-2.14.1与that is Gradle itself, and not the Android Gradle plugin不同

不过，不清楚为什么要在标准Java模块上应用该插件

你所需要的只是

apply plugin: 'java'

---

换句话说，Gradle只是构建Android代码。除此之外，它与Android没有任何关系，如果设置正确，您可以独立于Android运行Java项目

Gradle - Java Plugin

---

比如说,

java-code/build.gradle

apply plugin: 'java'

targetCompatibility = '1.7'
sourceCompatibility = '1.7'

test {
    testLogging {
        // Show that tests are run in the command-line output
        events 'passed'
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
}

app/build.gradle

apply plugin: 'com.android.application'
evaluationDependsOn(':java-code')

...

dependencies {
    compile project(":java-code")
    compile fileTree(dir: 'libs', include: ['*.jar'])

    ...
}

settings.gradle

include ':app', ':java-code'