问题
I have created a web app using maven in eclipse. I am using jetty for running the app. I am able to run the app using the maven jetty plugin. But I am facing difficulty while debugging the app - The steps that i have followed to setup debug settings are from the below link http://www.clickonchris.com/2010/05/configuring-jetty-maven-and-eclipse-together-with-hot-deploy/
I can run the app at port 8080 and it keeps on Listening for transport dt_socket at address: 4000. For debugging i have given port 4000. But when i start the debugger in eclipse it gives me a window with following error - "Failed to connect to remote VM. Connection refused. Connection refused: connect" Can some one help me out in resolving this issue for debugging the app.
Thanks!!!
回答1:
Set MAVEN_OPTS using -
export MAVEN_OPTS="-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n"
Then start jetty using -
mvn jetty:run
Start remote debugging from your fav IDE on port 8000
回答2:
Here's a quick workaround. I was battling with this problem also and after a while I achieved a lazy solution.
I use Eclipse Indigo with m2eclipse. I created a new Run Configuration: Right-Clicked the project in Project Explorer -> Run As... -> maven build. Then I defined the necessary maven commands/goals to run the project with jetty straight from Eclipse.
Finally I just ran the newly created configuration in Debug mode and got debug working. This probably messes up something else(?) but works as a quick workaround.
回答3:
As suggested by h3xstream in one of the comments, you can run using mvnDebug jetty:run.
来源：https://stackoverflow.com/questions/7875002/setting-debug-configuration-for-mavenjettyeclipse