使用Eclipse和Maven打包为WAR的Java Web应用程序的最佳方法？ [英] Best way to debug Java web application packaged as a WAR using Eclipse and Maven?

问题描述

我之前没有构建Java Web应用程序，但是我已经完成了足够的测试，Maven正在构建我的WAR文件。它是一个多模块的Maven项目，依赖模块在WAR的WEB-INF / lib目录中都有他们的JAR文件。

I've not built a Java web application before, but I have it complete enough to test and Maven is building my WAR file just fine. It is a multi-module Maven project and the dependent modules all have their JAR files in the WEB-INF/lib directory of the WAR.

所以一切似乎都很好，但是如何调试？我知道如何（从命令行）在我的机器上的Tomcat中运行WAR。我也认为我也知道如何从命令行设置和运行Maven Jetty插件。但是如何最好地调试...使用Eclipse中的所有断点和变量检查？

So everything seems fine, but how to debug? I know how to (from the command line) run the WAR in Tomcat on my machine. I also think I know how to set up and run the Maven Jetty plugin from the command line as well. But how best to debug...with all the break points and variable inspection I love with Eclipse?

是否有某种启动配置，我应该创建，还是远程附加调试器？在Eclipse中有什么可以帮助...像插件吗？

Is there some kind of launch configuration I should create, or do I attach the debugger remotely? Is there something in Eclipse that can help...like a plugin?

推荐答案

如果你运行你的WAR与tomcat / jetty插件通过调试选项到Maven：

If you run your WAR with tomcat/jetty plugin pass debug options to the Maven:

export MAVEN_OPTS="-Xnoagent -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000" mvn tomcat:run

如果您使用常规Tomcat运行WAR，只需运行它即可启用JPDA（调试器）支持：

If you run your WAR using the regular Tomcat, just run it with JPDA (debugger) support enabled:

$TOMCAT_HOME/bin/catalina.sh jpda start

Tomcat的默认端口6 JPDA为8000。

Default port for Tomcat 6 JPDA is 8000.

现在，将Eclipse（调试 - >远程Java应用程序）连接到端口8000和享受您的精细调试会话。

Now connect with the Eclipse (Debug -> Remote Java Application) to the port 8000 and enjoy your fine debugging session.

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