spring MVC框架（入门篇）-2

改进配置信息

改进1;在web.xml中修改欢迎页的配置信息，并将index.jsp移动到jsp文件夹下

<welcome-file-list>
<welcome-file>jsp/index.jsp</welcome-file>
</welcome-file-list>

改进2：在spmvc-servlet.xml文件中插入下面的代码

 1 <!--在spring中一切资源都被视为bean -->
 2     <bean id="simpleUrlHandlerMapping"
 3         class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
 4         <property name="mappings">
 5             <props>
 6                 <prop key="/my.do">MyControl</prop>
 7                 <prop key="/login.do">LoginControl</prop>
 8             </props>
 9         </property>
10     </bean>
11     <!-- 在访问的jsp页面的前后加上前缀和后缀 -->
12     <bean id="viewResolver"
13         class="org.springframework.web.servlet.view.InternalResourceViewResolver">
14         <property name="prefix" value="/jsp/" />
15         <property name="suffix" value=".jsp" />
16     </bean>
17 
18     <!-- 说明： my.do 的请求将给名为 MyControl 的 bean 进行处理。 -->
19     <bean id="MyControl" class="com.test.MyController"></bean>
20     <bean id="LoginControl" class="com.test.LoginControl"></bean>

改进3：改动MyController.java文件

编写：LoginControl.java文件

 1 package com.test;
 2 
 3 import javax.servlet.http.HttpServletRequest;
 4 import javax.servlet.http.HttpServletResponse;
 5 
 6 import org.springframework.web.servlet.ModelAndView;
 7 import org.springframework.web.servlet.mvc.Controller;
 8 
 9 public class LoginControl implements Controller{
10 
11     @Override
12     public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception {
13         // TODO Auto-generated method stub
14         ModelAndView mv = new ModelAndView("login");
15         mv.addObject("什么的干活", "dfdsfs");
16         return mv;
17     }
18 
19 }

改进4.编写login.jsp文件

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3     String path = request.getContextPath();
 4     String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort()
 5             + path + "/";
 6 %>
 7 
 8 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 9 <html>
10 <head>
11 <base href="<%=basePath%>">
12 
13 <title>My JSP 'login.jsp' starting page</title>
14 
15 <meta http-equiv="pragma" content="no-cache">
16 <meta http-equiv="cache-control" content="no-cache">
17 <meta http-equiv="expires" content="0">
18 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
19 <meta http-equiv="description" content="This is my page">
20 <!--
21     <link rel="stylesheet" type="text/css" href="styles.css">
22     -->
23 
24 </head>
25 
26 <body>
27     <form action="post" method="get">
28         First name:<br> <input type="text" name="firstname"> <br>
29         Last name:<br> <input type="text" name="lastname">
30         
31     </form>
32     ${什么的干活}
33 
34 </body>
35 </html>

5.访问网页的问题

1.启动项目

2.打开浏览器

打开了项目的首页;

3.在浏览器地址栏后面输入my.do

返回在java文件中的信息

4.点击链接，跳转到登录界面