在 Maven 中调试?

问题描述

是否可以从 Maven 启动调试器，例如 jdb?我有一个成功编译项目的 pom.xml 文件.但是，该程序挂在某处，我真的很想启动 jdb 或等效的调试器来查看发生了什么.

Is it possible to launch a debugger such as jdb from Maven? I have a pom.xml file that compiles the project successfully. However, the program hangs somewhere and I would really like to launch jdb or an equivalent debugger to see what's happening.

我使用 mvn compile 编译并使用:

I compile using mvn compile and launch using:

mvn exec:java -Dexec.mainClass="com.mycompany.app.App"

我期待的是:

mvn exec:jdb -Dexec.mainClass="com.mycompany.app.App"

启动调试器，但像往常一样，我的期望与 maven 的理念不一致.

to launch the debugger but, as usual, my expectations are incongruent with maven's philosophy.

此外，我找不到任何文档(在 Maven 的网站或谷歌上)来描述调试是如何工作的.我怀疑我必须使用一些插件.

Also, I couldn't find any documentation (on Maven's website or google) to describe how debugging works. I suspect that I have to use some plugin.

推荐答案

正如Brian所说，可以使用远程调试:

Just as Brian said, you can use remote debugging:

mvn exec:exec -Dexec.executable="java" -Dexec.args="-classpath %classpath -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=1044 com.mycompany.app.App"

然后在您的 eclipse 中，您可以使用远程调试并将调试器附加到 localhost:1044.

Then in your eclipse, you can use remote debugging and attach the debugger to localhost:1044.

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