Servlet笔记8--乱码解决方案

乱码解决方案：

　　　代码详解：

 package com.bjpowernode.javaweb.servlet;

 import java.io.IOException;

 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;

 public class SaveDeptServlet extends HttpServlet {

     private static final long serialVersionUID = 1L;

     @Override
     protected void doGet(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {
         //Tomcat配置文件中的URIEncoding修改后，doGet方法就已经解决了编码问题
         String dname = request.getParameter("dname");
         System.out.println(dname);
     }

     @Override
     protected void doPost(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {

         /*
         String dname = request.getParameter("dname");

         //第一种解决方式：万能解决方案，post和get都可以使用
         byte[] bytes = dname.getBytes("ISO-8859-1");  //解码
         dname = new String(bytes, "UTF-8");  //编码方式需要同浏览器的的编码方式一致
         System.out.println(dname);
         */

         //第二种解决方案：调用request的setCharacterEncoding方法，但是这种方式只适合POST请求，只对请求体编码
         //告诉Tomcat服务器，请求体中的数据采用UTF-8的方式进行编码
         request.setCharacterEncoding("UTF-8");
         String dname = request.getParameter("dname");
         System.out.println(dname);
     }
 }