JDWP全称：Java Debug Wire Protocol, java调试协议
就是远程调试，比如说测试环境需要debug找问题，直接使用这种方式在本地idea中打断点连测试环境进行调试，找问题。生产环境不建议这样操作。
命令：java -agentlib:jdwp=help
Java Debugger JDWP Agent Library
--------------------------------
(see http://java.sun.com/products/jpda for more information)
jdwp usage: java -agentlib:jdwp=[help]|[<option>=<value>, ...]
Option Name and Value Description Default
--------------------- ----------- -------
suspend=y|n wait on startup? y
transport=<name> transport spec none
address=<listen/attach address> transport spec ""
server=y|n listen for debugger? n
launch=<command line> run debugger on event none
onthrow=<exception name> debug on throw none
onuncaught=y|n debug on any uncaught? n
timeout=<timeout value> for listen/attach in milliseconds n
mutf8=y|n output modified utf-8 n
quiet=y|n control over terminal messages n
Obsolete Options
----------------
strict=y|n
stdalloc=y|n
Examples
--------
- Using sockets connect to a debugger at a specific address:
java -agentlib:jdwp=transport=dt_socket,address=localhost:8000 ...
- Using sockets listen for a debugger to attach:
java -agentlib:jdwp=transport=dt_socket,server=y,suspend=y ...
Notes
-----
- A timeout value of 0 (the default) is no timeout.
Warnings
--------
- The older -Xrunjdwp interface can still be used, but will be removed in
a future release, for example:
java -Xdebug -Xrunjdwp:[help]|[<option>=<value>, ...]
看例子
使用服务端监控
java -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5050 -jar test-1.0.jar
配置客户端，在idea中
点击+，选择Remote JVM Debug
点击ok按钮，这样就配置好了
点击debug直接运行，就可以进入到断点。
