Jsp (the first choice for SUN enterprise-level applications) is prone to garbled characters, and sometimes it feels annoying. Today I am free to summarize myself in tomcat (a very useful JSP running platform). 1. The Chinese characters on the pages of jsp (preferred for SUN Enterprise Applications) that do not call database data are garbled. Generally, you can start with the following jsp (preferred for SUN Enterprise Applications) page: <% @ page contentType = "text/html; charset = GBK" language = "java" errorPage = "" %> 2. garbled data submitted to the database through forms, generally, transcoding can be solved only after I add filter and jdbc: url and parameters in tomcat (a very useful JSP running platform) 5, 1. The filter uses the one that comes with tomcat (a very useful JSP running platform :). You can specify the web. xml (standardization is getting closer and closer) as follows: Set Character Encoding Filters. SetCharacterEncodingFilter Encoding GBK 2. jdbc: url :? UseUnicode = true & characterEncoding = gbk the above method basically solves Chinese garbled characters