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Servlet输出中文到客户端的乱码解决方法

Servlet在客户端中出现乱码是常见现象，参见Servlet中文乱码原因 解决 Get 和 Post 和客户端，以下两行语句要在获取输出流之前执行，才会生效。问题解决。

response.setCharacterEncoding("UTF-8");
response.setContentType("text/html;charset=utf-8");
//以上两行语句要在获取输出流之前执行。才会生效。
PrintWriter out = response.getWriter();

完整代码：

package com.xionghuilin;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class HelloWorld extends HttpServlet {

    public void doGet(HttpServletRequest request,HttpServletResponse response)throws IOException,ServletException {
    //以下两行语句要在获取输出流之前执行。才会生效。
        response.setCharacterEncoding("UTF-8");
        response.setContentType("text/html;charset=utf-8");
    //以上两行语句要在获取输出流之前执行。才会生效。
        PrintWriter out = response.getWriter();
        response.setContentType("text/html;charset=UTF-8");
        response.setCharacterEncoding("UTF-8");
        request.setCharacterEncoding("UTF-8");
        response.setHeader("content-type","text/html;charset=UTF-8");
        //以下语句无法解决问题，位置不对
        //out.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\r\n");
        //<%@ page contentType="text/html; charset=UTF-8" language="java" import="java.sql.*" errorPage="" %>
        //out.write("<%@ page contentType=\"text/html; charset=UTF-8\" language=\"java\" import=\"java.sql.*\" errorPage=\"\" %>\r\n");
        out.write("<html>\r\n");
        out.write("<head>\r\n");
        //以下语句无法解决问题，位置不对
        //设定解码方式
        //out.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=GBK\">\r\n");
        //out.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\r\n");
        //out.write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\">\r\n");
        out.write("<title>该文件放在根目录下</title>\r\n");
        out.write("</head>\r\n");
        out.write("\r\n");
        out.write("<body>\r\n");
        out.write("<font size=20>\r\n");
        //以下语句无法解决问题，位置不对
        //out.print("采用Servlet实现HelloWorld".getBytes("UTF-8"));
        out.print("采用Servlet实现HelloWorld");
        out.write("\r\n");
        out.write("</font>\r\n");
        out.write("</body>\r\n");
        out.write("</html>");
    }
}

Reference

Servlet 中文乱码问题及解决方案剖析
Servlet解决中文乱码
Servlet页面中文乱码问题
解决servlet乱码问题
Servlet中文乱码原因 解决 Get 和 Post 和客户端

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