1, open the directory of Tomcat, find conf folder, modify the code set server.xml in general, and can be changed to utf-8
2, if the set is encoded server.xml utf-8, you can modify the file logging.properties
Find java.util.logging.ConsoleHandler.encoding = UTF-8, the default is utf-8, amended as: java.util.logging.ConsoleHandler.encoding = GBK
Save and restart