解决get/post提交乱码的一个filter

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闲来无事,写了一个filter,用来解决get/post乱码提交问题

package com.nrsc.utils;import java.io.IOException;import java.io.UnsupportedEncodingException;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.HttpServletRequest;import javax.servlet.http.HttpServletRequestWrapper;public class EncodeFilter implements Filter {    public void destroy() {    }    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)            throws IOException, ServletException {        MyRequest myrequest = new MyRequest((HttpServletRequest) request);        chain.doFilter(myrequest, response);    }    public void init(FilterConfig fConfig) throws ServletException {    }}//注意一个java文件里只能有一个类用public修饰class MyRequest extends HttpServletRequestWrapper {    private HttpServletRequest request;    public MyRequest(HttpServletRequest request) {        super(request);        this.request = request;    }    @Override    public String getParameter(String name) {        try {            String method = request.getMethod();            if ("GET".equalsIgnoreCase(method)) {                // 获取请求的参数 乱码                String value = request.getParameter(name);                value = new String(value.getBytes("iso-8859-1"), "utf-8");                return value;            } else if ("POST".equalsIgnoreCase(method)) {                request.setCharacterEncoding("utf-8");            }        } catch (UnsupportedEncodingException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        return super.getParameter(name);    }}

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