Mainly in Web.xml, Log4JServlet log4jservlet com.gx.ggl.common.log4jservlet < PARAM-NAME> LOG4J /web-inf/log4j.lcf 1 then writes static logger logger = logger.getlogger (DatabaseTest.class.getname ()); Finally, you need to write to logger.info ("Cai Xiaoliang ArgRequest). GetRemoteAddr () "Query ID" STRXH "); specific info, error, bug is also studying
