How to debug remote debugging of Java application in production environment __java

Java itself supports debugging and provides a simple debugging tool--jdb, similar to the powerful Gdb,jdb is also a character interface debugging environment, and support the setting of breakpoints, support thread-level debugging.

1. Add to the process startup parameters on the server:

-xdebug-xrunjdwp:transport=dt_socket,address=6666,server=y,suspend=n

Connecting to the debugging services provided by myhost:6666

-xdebug is to notify the JVM to work in debug mode,

-XRUNJDWP is to notify the JVM to use (Java Debug Wire protocol) to run the debugging environment. This parameter also has a series of debugging options:
Transport specifies how debug data is transmitted

Dt_socket refers to the use of socket mode

Whether the server=y/n VM needs to be executed as a debug server.

suspend=y/n whether to start the VM after the debugging client establishes a connection.

Start the service side

2. Debugging clients

Set Debug configurations-->remote Java application

3. Click Debug, the operating effect is as follows, and the local debugging is exactly the same.