如何在Android Studio项目中添加类路径 [英] How to add classpath in an Android Studio project

问题描述

我有一个Android项目，该项目的Android应用程序依赖于纯Java库(该Java库使用其他一些编译的jars库).
我添加了依赖项，可以构建该项目，但是在运行时我有一个ClassNotFoundException错误.
我必须将的路径添加到CLASSPATH environment变量.
有没有一种方法可以只在本地为项目设置类路径，例如使用命令行选项

I have an Android project with an Android application that depends on a pure Java library (and the Java library uses some others compiled jars libraries).
I added the dependencies, I can build the project, but at run time I have a ClassNotFoundException error.
I had to add to theCLASSPATHenvironment variable the path to the jars.
Is there a way to set the classpath locally for the project only, like using the command line option

java –classpath <path to the jars>

在Android Studio中运行/调试配置?

in the Android studio Run/Debug Configurations?

推荐答案

首先，请确保项目的"app"文件夹中有一个"libs"子文件夹.如果没有，请创建一个. 接下来，在app/build.gradle文件中，添加以下代码行:

First off all, be sure there's a "libs" subfolder in the "app" folder of your project. If there's not, create one. Next, in the app/build.gradle file, add this line of code:

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

将所有.jar文件放置在"libs"文件夹中，瞧，就完成了

Place all of your .jar files in the "libs" folder, and voila, you're done

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