Spring MVC 3.x注解方式实例源码

admin

首先说明一下使用的版本：

JDK：1.6   Tomcat：6.0   spring：3.2，使用到的Jar包截图：

工程结构截图：

接下来：web.xml文件配置：

1. <?xml version="1.0" encoding="UTF-8"?>
   
2. <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
   $ o! U- \. s4 G- B6 f
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   
4. xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
   ; T9 a/ C% U# x0 t) e5 S2 d2 B
5. http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
   
6. 
   , W) {, M; R6 Q( u8 U) z
7. <servlet>
   
8.   <servlet-name>SpringMVC</servlet-name>
   
9.   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
   ! F7 Z9 r0 h( s3 M# E
10.   <init-param>
    " B) m/ Q- `: Q$ G$ a: s
11.    <param-name>contextConfigLocation</param-name>
    8 ^5 J3 ~2 A5 ^/ M3 p3 k2 [6 u
12.    <param-value>classpath:SpringMVC-servlet.xml</param-value>
    
13.   </init-param>
    2 q% `4 o# P' }: p1 _) }% r
14.   <load-on-startup>1</load-on-startup>
    
15. </servlet>
    ; R( r! B& \% Z' A+ ^2 V! y) v
16. <servlet-mapping>
    
17.   <servlet-name>SpringMVC</servlet-name>
    
18.   <url-pattern>/</url-pattern>
    & W  \7 y- l+ z5 e% z
19. </servlet-mapping>
    2 m3 W: r: B0 y  U6 B; w/ Z
20. 
    9 Z% T- @- [4 ^! l1 U5 y( H! c3 V
21. <!-- 编码过滤 -->  
    7 T% `# |8 ~" t, ], f% w
22.     <filter>  
    4 N+ t5 |! K3 t: T4 a
23.         <filter-name>encode</filter-name>  
    , d( ^. H4 [) D- z1 H
24.         <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>  
    ) C7 B4 V; w2 ?$ c+ Y
25.         <init-param>  
    5 d+ x0 n4 n% ~, ^; k6 e7 Z
26.             <param-name>encoding</param-name>  
    ! m/ N( o  [9 c0 v" |4 |
27.             <param-value>UTF-8</param-value>  
    3 E7 u% ^' l. ?1 D
28.         </init-param>  
    3 x4 L# Z; n. L
29.     </filter>  
    ' X) G# ^9 _! B# X& ~* T
30.     <filter-mapping>  
    
31.         <filter-name>encode</filter-name>  
    , E, ]3 W- x, n$ t* `0 O
32.         <url-pattern>/*</url-pattern>  
    4 E$ ~# ]; i0 s! u  v) q
33.     </filter-mapping>
    3 l) g4 z4 w( I# e! ^' ~
34. <welcome-file-list>
    # D1 Z2 D/ i& Q% f2 X
35.   <welcome-file>WEB-INF/index.jsp</welcome-file>
    
36. </welcome-file-list>
    3 g- O$ C3 Y; @1 V
37. </web-app>

复制代码

7 x4 a) ~8 E3 a" B( Ulog4j.properties文件配置：

1. log4j.rootLogger=WARN,stdout
   7 l- ]6 V& ~/ t1 d% T6 h
2. 
   
3. log4j.appender.stdout=org.apache.log4j.ConsoleAppender
   
4. 
   
5. log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
   2 ^0 z  H- J8 H# Y: [. D
6. 
   6 G+ `3 G2 t- z. K: p7 q6 D7 k
7. log4j.appender.stdout.layout.ConversionPattern=%n%-d{yyyy-MM-dd HH:mm:ss}%n[%p]-[Thread: %t]-[%C.%M()]: %m%n

复制代码

SpringMVC-servlet.xml文件的配置：

1. <?xml version="1.0" encoding="UTF-8"?>
   & P# L8 d  }$ O0 t1 P: B) b* w
2. <beans default-lazy-init="true"
   
3.        xmlns="http://www.springframework.org/schema/beans"  
   ) z; s: d* E- H# i" ?% Y
4.        xmlns:p="http://www.springframework.org/schema/p"
   
5.        xmlns:tx=""      
   
6.        xmlns:aop="http://www.springframework.org/schema/aop"
   # Q! D8 r0 t/ h, K0 B6 `3 L( ]
7.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
   
8.        xmlns:context=
   - U% f, }$ m5 K
9.        xmlns:mvc=
   
10.        xsi:schemaLocation=
    
11. "                        http://www.springframework.org/schema/context/spring-context-3.1.xsd">
    7 b8 \3 B8 o( P* ]5 h1 [5 p0 u# _1 l9 {
12. 
    5 n; B- k  z' j4 p  l! Z' s1 c" m
13.     <!-- 注解驱动 -->
    ' X& b0 t* h& U6 ]
14.     <mvc:annotation-driven />
    . y8 T# x% W6 E: p; }; V$ I
15.     <!-- 扫描包 -->
    " z8 j$ ^$ Q. S' y/ b1 c5 j# g
16.     <context:component-scan base-package="com.project.controller" />
    5 q, Y3 f0 t) N7 G7 s; N- @: C4 [
17. <!-- ViewResolver -->
    
18. <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    ) C  E9 M! r3 n1 j1 }  ^
19.      <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
    
20.      <property name="prefix" value="/WEB-INF/jsp/"/>
    
21.      <property name="suffix" value=".jsp"/>
    
22. </bean>
    
23. <!-- HandlerAdapter -->
    9 a) H  @" y. l1 B. v
24. <!-- <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
    " m7 z5 d5 s  j$ a4 k9 _$ V
25.   <property name="mappings">
    
26.    <props>
    0 {  q1 [% [" k! U5 {) m7 A1 k4 c
27.     <prop key="/index">Hello</prop>
    
28.    </props>
    ) F) @4 n8 t' o0 e8 y4 O" W
29.   </property>
    - e6 R6 a# J; @+ z) Y
30. </bean> -->
    
31. <!-- HandlerMapping -->
    
32. <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
    
33. <!-- HandlerMapping -->
    7 Y2 @/ n* x9 t$ t0 V! P" m4 U) p
34. <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>
    
35. <!-- <bean name="/index" class="com.project.controller.HelloController"/> -->
    , R4 ]% D4 S, I) U* I% t
36. <!-- <bean id="Hello" class="com.project.controller.HelloController" /> -->
    
37. </beans>

复制代码

HelloController代码内容：

1. package com.project.controller;
   $ Y6 |4 L1 m0 g# n6 j4 [
2. import javax.servlet.http.HttpServletRequest;
   
3. import javax.servlet.http.HttpServletResponse;
   
4. import org.springframework.stereotype.Controller;
   + @; E! [$ F8 Y9 k! i( g0 A
5. import org.springframework.web.bind.annotation.RequestMapping;
   
6. import org.springframework.web.servlet.ModelAndView;
   ! A, _( ]1 @9 `# k9 a% K) h
7. @Controller
   ; v% T% p9 @; \$ m# q) n
8. @RequestMapping("/hello")
   
9. public class HelloController {
   7 c& O+ E! v. g
10. @RequestMapping("/index")
      G. l% @' X8 U3 B
11. public ModelAndView index(HttpServletRequest request,HttpServletResponse response) throws Exception {
    1 v2 t4 p% h" C4 j! e
12.   ModelAndView modelView = new ModelAndView();
    
13.   modelView.addObject("msg","Hello Index");
    
14.   modelView.setViewName("index");
    8 b* W2 ]* F1 X) v
15.   System.err.println("执行index！");
    
16.   return modelView;
    
17. }
    
18. @RequestMapping("/show")
    
19. public ModelAndView show(HttpServletRequest request,HttpServletResponse response) throws Exception {
    - ]3 ?4 |. B" Q: Q
20.   ModelAndView modelView = new ModelAndView();
    * G8 ?4 r$ Z5 T
21.   modelView.addObject("msg","Hello show");
    8 m& q& a) M9 D# f0 j; u# a5 P0 v- c
22.   modelView.setViewName("index");
    
23.   System.err.println("执行show！");
    
24.   return modelView;
    " y9 J+ {  C' Q
25. }
    $ C* `3 ]; A5 U& L
26. }

复制代码

OK，运行效果如图：

& G; R3 e* X2 J" r# w