Tomcat garbled characters in the console in IDEA and how to set IDEA encoding to UTF-8

1. First of all, we need to distinguish between the tomcat log encoding and the idea log display console encoding

2. Tomcat log encoding: In cmd, run "cd /d tomcat root directory" and "bin\catalina.bat run". Use "chcp65001" to switch cmd to utf8, and "chcp 936" to switch cmd to gbk. Determine the tomcat log encoding, which is usually in tomcat/conf/logging.properties

3. IDEA display encoding: Windows uses GBK by default, so IDEA displays GBK encoding by default. [Be sure] to add -Dfile.encoding=UTF-8 in Help-- custom vm options to force utf8 encoding display. Do not change it yourself. The vmoptions may be in the wrong position. IDEA will copy a

4. [Avoid] Changing Tomcat's logging.properties to GBk will cause garbled get/post parameters during debugging

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