在Eclipse中，查看项目 - >属性，您需要运行时配置。选择运行/调试设置并选择新的或编辑已有的。创建新的运行/调试配置时，请确保选择Java Project。当对话框打开时，您将看到类路径指令的选项卡。

In Eclipse look at Project -> Properties for the project you want a runtime configuration. Choose Run/Debug settings and choose new or edit one you already have. When creating a New run/debug config make sure to choose Java Project. When the dialog box opens you will see a tab for classpath directives.