servlet中文显示是问号怎么解决

package com.serlet1;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**

Servlet implementation class No1
*/
@WebServlet("/No1")
public class No1 extends HttpServlet {
private static final long serialVersionUID = 1L;
/**
- @see HttpServlet#HttpServlet() */ public No1() { super(); // TODO Auto-generated constructor stub }
/**
- @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
  */
  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
  // TODO Auto-generated method stub
  response.getWriter().append("Served at: ").append(request.getContextPath());
  response.setContentType("text/html;charset=UTF-8");
  PrintWriter out = response.getWriter();
  String title = "使用 GET 方法读取表单数据";
  // 处理中文
  String name =new String(request.getParameter("name").getBytes("ISO8859-1"),"UTF-8");
  String docType = "<!DOCTYPE html> \n";
  out.println(docType +
  "\n" +
  "
  " + title + "\n" +
  "\n" +
  "
  " + title + "
  \n" +
  "
  - 站点名："
    + name + "\n" +
    "
  - 网址："
    + request.getParameter("url") + "\n" +
    "
  \n" +
  "");
  }
/**
- @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); }

}

乱码了，用tomcat8.0以上的，默认没问题。

可能是你的Tomcat安装的时候没有选择utf-8,重装一次试试。不过重装之前你要百度一下教程，不删除干净是重装不上的。

用request设置编码

你这情况多变，得看具体穿过来的编码。和相应的编码。肯定是某个地方设置得不同步。

编码要看你的请求方式是post还是get
post的话你可以在页面设置页面编码
get接收到数据自己处理

终极大招:改动服务器配置在server.xml中修改编码格式为utf-8,一劳永逸


        response.setCharacterEncoding("utf-8");

设置一下编码

servlet中文显示是问号怎么解决

" + title + "