Tomcat 6 如何设置远程调试
tomcat 6 remote debug setting

tomcat6w.exe > Java tab > Java Options

"-Xdebug" and "-Xrunjdwp:transport=dt_socket,address=8000,server=y,suspend=n"

in two different lines,

following is example

-Xdebug
-Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=n