springmvc

springmvc请求流程与struts比较

1.添加包

com.springsource.org.aopalliance-1.0.0.jar
com.springsource.org.apache.commons.logging-1.1.1.jar
spring-aop-3.2.2.jar
spring-aspects-3.2.2.jar
spring-beans-3.2.2.jar
spring-context-3.2.2.jar
spring-context-support-3.2.2.jar
spring-core-3.2.2.jar
spring-expression-3.2.2.jar
spring-web-3.2.2.jar
spring-webmvc-3.2.2.jar

2.配置web.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
 3   <display-name>springmvc</display-name>
 4   
 5   
 6   <servlet>
 7         <servlet-name>action</servlet-name>
 8         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
 9         <init-param>
10             <param-name>contextConfigLocation</param-name>
11             <param-value>classpath:spring-mvc.xml</param-value>
12         </init-param>
13         <load-on-startup>1</load-on-startup>
14     </servlet>
15     
16     <servlet-mapping>
17         <servlet-name>action</servlet-name>
18         <url-pattern>*.action</url-pattern>
19     </servlet-mapping>
20   
21   <welcome-file-list>
22     <welcome-file>index.htm</welcome-file>
23     <welcome-file>index.jsp</welcome-file>
24   </welcome-file-list>
25 </web-app>

3.配置 spring-mvc.xml 名字要与web.xml中的 classpath:后面的保持一致就可以了

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <beans xmlns="http://www.springframework.org/schema/beans"
 3     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
 4     xsi:schemaLocation="http://www.springframework.org/schema/beans                            
 5                         http://www.springframework.org/schema/beans/spring-beans-3.2.xsd">
 6     
 7 <!--     handdlerMapping 如果没有写 默认是 BeanNameUrlHandlerMapping -->
 8 <!--         映射分为3种，BeanNameUrlHandlerMapping、simpleUrlHandlerMapping、controllerClassNameHandlerMapping -->
 9 <!--     property name="order" value="1" 用于排序哪种优先级高，数字越小优先级越高 -->
10     <!-- 处理器映射 -->
11     <!-- BeanNameUrl处理器映射 -->
12     <bean id="beanNameUrlHandlerMapping" class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping">
13         <property name="order" value="1"/>
14     </bean>
15     <!-- SimpleUrl处理器映射， 多个不同的url转到同个action请求的情况 -->
16     <bean id="simpleUrlHandlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
17         <property name="mappings">
18             <props>
19                 <prop key="/hi.action">hc</prop>
20                 <prop key="/a.action">hc</prop>
21                 <prop key="/b.action">hc</prop>
22                 <prop key="/c.action">hc</prop>
23             </props>
24         </property>
25         <property name="order" value="0"/>
26     </bean>
27     <!-- ControllerClassName处理器映射 -->
28 <!--     根据类名请求url，类名要小写，切记 -->
29     <bean id="controllerClassNameHandlerMapping" class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping">
30         <property name="order" value="2"/>
31     </bean>
32                         
33     <!-- 控制器 -->
34     <bean id="hc" name="/hi.action" class="cn.itcast.springmvc.web.controller.HomeController"/>
35     <bean id="personCommandController" class="cn.itcast.springmvc.web.controller.PersonCommandController"/>
36     <bean id="personFormController" class="cn.itcast.springmvc.web.controller.PersonFormController">
37         <!-- 表单视图 -->
38         <property name="formView" value="jPersonCreate"/>
39         <!-- 成功视图 -->
40         <property name="successView" value="index"/>
41     </bean>
42     <bean id="myWizardController" class="cn.itcast.springmvc.web.controller.MyWizardController">
43         <property name="pages">
44             <list>
45                 <value>wizard/jPersonBaseInfo</value>
46                 <value>wizard/jPersonEduInfo</value>
47                 <value>wizard/jPersonWorkInfo</value>
48             </list>
49         </property>
50     </bean>
51     
52     
53     <!-- 内部资源视图解析器  prefix + logicName + suffix /WEB-INF/jsps/ + index + .jsp-->
54 <!--     用于解析在controller 中return  ModelAndView中的视图名的拼凑 -->
55     <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
56         <!-- 前缀 -->
57         <property name="prefix" value="/WEB-INF/jsps/"/>
58         <!-- 后缀 -->
59         <property name="suffix" value=".jsp"/>
60     </bean>
61     
62 </beans>

4.HomeController.java

 1 package cn.itcast.springmvc.web.controller;
 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.AbstractController;
 8 
 9 public class HomeController extends AbstractController {
10 
11     @Override
12     protected ModelAndView handleRequestInternal(HttpServletRequest request,
13             HttpServletResponse response) throws Exception {
14 
15 
16         System.out.println("hello" + request.getContextPath() + request.getServletPath());
17         
18         return new ModelAndView("index");
19     }
20 
21 }

5 . index.jsp

 1 <%@ page language="java" pageEncoding="UTF-8"%>
 2 <html>
 3   <head>
 4     <title>My JSP 'index.jsp' starting page</title>
 5   </head>
 6   
 7   <body>
 8     
 9     This is my JSP page. spring MVC<br>
10   </body>
11 </html>

View Code

spring-mvc.xml中包含3种handdlerMapping的配置选择一种适合的

接下来进行Controller的介绍