关于处理中文乱码问题 Filter 代码

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.UnavailableException;/*** Example filter that sets the character encoding to be used in parsing the* incoming request*/public class SetCharacterEncodingFilter implements Filter {/*** Take this filter out of service.*/public void destroy() {}/*** Select and set (if specified) the character encoding to be used to* interpret request parameters for this request.*/public void doFilter(ServletRequest request, ServletResponse response,FilterChain chain)throws IOException, ServletException {request.setCharacterEncoding("UTF-8");// 传递控制到下一个过滤器chain.doFilter(request, response);}public void init(FilterConfig filterConfig) throws ServletException {}}