Filter全局解决中文乱码问题

这是Filter class

Java代码

package com.gem.java.Filter; import java.io.IOException; import javax.servlet.Filter; import javax.servlet.FilterChain; import javax.servlet.FilterConfig; import javax.servlet.ServletException; import javax.servlet.ServletRequest; import javax.servlet.ServletResponse; import javax.servlet.http.HttpServlet; public class EncodingFilter extends HttpServlet implements Filter { private String encoding = null; public void init(FilterConfig filterConfig) throws ServletException { encoding = filterConfig.getInitParameter("encoding"); } public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { request.setCharacterEncoding(encoding); response.setCharacterEncoding(encoding); chain.doFilter(request, response); } }  

 

 

 

这里是Filter的web.xml配置
Xml代码

<filter> <filter-name>CharacterEncoding</filter-name> <filter-class>com.gem.java.Filter.EncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncoding</filter-name> <url-pattern>/*</url-pattern> </filter-mapping>