tomcat 乱码问题解决方案

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　　tomcat 乱码问题解决方案
Using UTF-8 as your character encoding for everything is a safe bet. This should work for pretty much every situation.
In order to completely switch to using UTF-8, you need to make the following changes:

• Set URIEncoding="UTF-8" on your <Connector> in server.xml. References: HTTP Connector, AJP Connector.
  
• Use a character encoding filter with the default encoding set to UTF-8
  
• Change all your JSPs to include charset name in their contentType.For example, use <%@page contentType="text/html; charset=UTF-8" %> for the usual JSP pages and <jsp:directive.page contentType="text/html; charset=UTF-8" /> for the pages in XML syntax (aka JSP Documents).
  
• Change all your servlets to set the content type for responses and to include charset name in the content type to be UTF-8.Use response.setContentType("text/html; charset=UTF-8") or response.setCharacterEncoding("UTF-8").
  
• Change any content-generation libraries you use (Velocity, Freemarker, etc.) to use UTF-8 and to specify UTF-8 in the content type of the responses that they generate.
  
• Disable any valves or filters that may read request parameters before your character encoding filter or jsp page has a chance to set the encoding to UTF-8. For more information see http://www.mail-archive.com/users@tomcat.apache.org/msg21117.html.