eclipse 如何使用eclipse快速找到java项目中的main()？
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How to quickly find the main() in java project using eclipse ?
提问by URL87
In a case I have the src folder of project with a lot of classes in it , how could I detect which is the class with the main()that the project running start with ?
在一种情况下，我有项目的 src 文件夹，其中包含很多类，我怎么能检测哪个是main()项目运行开始的类？
采纳答案by NINCOMPOOP
- open the project you want to run class from;
- in main window: Run -> Open Run Dialog...(Run Configurations);
- in the left section open the project type your project belongs to (if it's main function it would be "Java Application" in your case);
- under this category your should see all the "executable" class names;
- 打开要从中运行类的项目；
- 在主窗口中：运行 -> 打开运行对话框...（运行配置）；
- 在左侧部分打开您的项目所属的项目类型（如果它是主要功能，则在您的情况下将是“Java 应用程序”）；
- 在此类别下，您应该看到所有“可执行”类名称；
回答by Andy Thomas
From the Eclipse IDE menu, select Search>Java ....
从 Eclipse IDE 菜单中，选择Search>Java ...。
In the dialog, enter:
在对话框中，输入：
- "main" as the search string.
- "Method" in the "Search For" box.
- "Declarations" in the "Limit to" box.
- “main”作为搜索字符串。
- “搜索”框中的“方法”。
- “限制于”框中的“声明”。
This gives you a convenient, hierarchical list in the "Search" view linking to all the classes with main() methods.
这在“搜索”视图中为您提供了一个方便的分层列表，通过 main() 方法链接到所有类。
Click on one of these to navigate to the class. Then right-click Run Asor Debug Asto run.
单击其中之一以导航到该类。然后右键单击Run As或Debug As来运行。
回答by fge
The problem is that in a jar, you are not limited to one main()method. There can be several main()sscattered across different classes, in "production" sources as well as in "test" sources etc.
问题是在 jar 中，您不仅限于一种main()方法。main()s在“生产”源和“测试”源等中，可能有几个分散在不同的类中。
If you know for sure that the jar built from this project can be launched using java -jar the.jar, then it means the META-INF/MANIFEST.MFhas a Main-Classentry: you should look in there for the class name.
如果您确定可以使用 启动从该项目构建的 jar java -jar the.jar，那么这意味着META-INF/MANIFEST.MF有一个Main-Class条目：您应该在那里查找类名。
Otherwise, you have to search for methods named mainwith a classical find tool... (see @AndyThomas' answer)
否则，您必须搜索main使用经典查找工具命名的方法...（请参阅@AndyThomas 的回答）
回答by Konstantin Yovkov
If there is a META-INF/MANIFEST.MFfile, you can search for Main-Classin it.
如果有META-INF/MANIFEST.MF文件，您可以Main-Class在其中搜索。
回答by David
You can use
您可以使用
Run -> Run Configurations (Alt + R + N)
or
或者
Run -> Debug Configurations (Alt + R + B)
回答by sanbhat
Your_Eclipse_Project -> Export... -> Runnable Jar File...
Your_Eclipse_Project -> 导出... -> 可运行的 Jar 文件...
here the top section of the dialog should list down all the classes having main()method, something like below
这里对话框的顶部应该列出所有具有main()方法的类，如下所示
Alternatively,
或者，
Your_Eclipse_Project -> Run As... -> Java Application
Your_Eclipse_Project -> Run As... -> Java 应用程序
will launch a dialog, which lists down all the main types which can be selected and run. This will search through all the jars referenced by your projects too.
将启动一个对话框，其中列出了所有可以选择和运行的主要类型。这也将搜索您的项目引用的所有 jar。
