老师看看还有什么需要修改的吗???
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title >Insert title here</ title > </ head > < body > < form action = "/servlet_advanced/iq" method = "post" > < input name = "name" placeholder = "请输入你要查询的单词" > < input type = "submit" value = "查询" > </ form > </ body > </ html > |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | package com.imooc.servlet.test; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import javax.websocket.Session; /** * Servlet implementation class InquireServlet */ @WebServlet ( "/iq" ) public class InquireServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public InquireServlet() { super (); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Map<String, String> map= new HashMap<String, String>(); map.put( "apple" , "苹果" ); map.put( "banana" , "香蕉" ); map.put( "peach" , "桃子" ); String name= request.getParameter( "name" ); if (map.containsKey(name)) { request.setAttribute( "name" , map.get(name)); request.getRequestDispatcher( "/inquire/success.jsp" ).forward(request, response); } else { HttpSession session=request.getSession(); session.setAttribute( "name" , "没有找到对应的单词解释" ); response.sendRedirect( "/servlet_advanced/inquire/fail.jsp" ); } } } |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title >Insert title here</ title > </ head > < body > <% String name=(String) request.getAttribute("name"); out.println("< h1 >"+name+"</ h1 >"); %> </ body > </ html > |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title >Insert title here</ title > </ head > < body > <% String name=(String)session.getAttribute("name"); out.println("< h1 style = 'color:red' >"+name+"</ h1 >"); %> </ body > </ html > |
0
收起
正在回答 回答被采纳积分+1
2回答
慕尼黑7895541
2019-03-20 15:43:11
为什么你请求转发会到成功页面会改变地址栏中的url?
chrismorgen
2019-03-04 15:01:58
效果完成的很棒,加油,祝学习愉快~
从网页搭建入门Java Web2018版
- 参与学习 人
- 提交作业 1088 份
- 解答问题 10204 个
如果你有Java语言基础,又想以后从事Java Web开发,那么本路径是你的不二选择!本路径从网页搭建开始入手,通过大量案例来学习Java Web基础。定能助你完成Java Web小白的蜕变!
了解课程
恭喜解决一个难题,获得1积分~
来为老师/同学的回答评分吧