jsp乱码处理

        // 注意 1：PrintWriter是包装了response的outprintStrame底层的实现还是outprintStream
        //             2:所以要先设置response的字符编码
        //                 response.setContentType("text/html;charset=UTF-8");
        //        3: 再  PrintWriter out = response.getWriter();
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        String str = new MessageDao().getString();
        out.println(str);
        out.close();
        out.flush();

2:前台编码 epgName = encodeURI(epgName);  param=new String(java.net.URLDecoder.decode(param,"UTF-8"));