servlet-向页面输出中文出现乱码处理方式

package cn.lijun .content;

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 TextServlet extends HttpServlet {

protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

//设置response查询的码表
//response.setCharacterEncoding("UTF-8");

//通过一个头 Content-Type 告知客户端使用何种码表
//response.setHeader("Content-Type", "text/html;charset=UTF-8");

response.setContentType("text/html;charset=UTF-8");

PrintWriter writer = response.getWriter();
//writer.write("hello response!!!");
writer.write("你好");

}

protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}