MVC架构Maven项目（四）SpringMVC集成

1.pom配置

<properties>
<version-springframework>3.2.13.RELEASE</version-springframework>
<version-servlet>2.5</version-servlet>
</properties>
<dependencies>
<!-- spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-instrument-tomcat</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jms</artifactId>
4000
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc-portlet</artifactId>
<version>${version-springframework}</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.9</version>
</dependency>
<!-- servlet -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${version-servlet}</version>
<scope>provided</scope>
</dependency>
</dependencies>

2.web.xml配置

<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Anonymity Blog</display-name>
<!-- Spring MVC Configuration Spring MVC配置 -->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-conf/dispatcher-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>

SpringMVC配置文件

默认在classpath目录下找[servlet-name]-servlet.xml，如本例中是dispatcher-servlet.xml

可以添加init-param来指定目录及文件名称，格式为classpath:目录名/文件名

url-pattern详解

以”/’开头和以”/*”结尾的是用来做路径映射的。

以前缀”*.”开头的是用来做扩展映射的。

“/” 是用来定义default servlet映射的。

剩下的都是用来定义详细映射的。比如： /aa/bb/cc.action

所以，为什么定义”/*.action”这样一个看起来很正常的匹配会错？因为这个匹配即属于路径映射， 也属于扩展映射，导致容器无法判断。

3.dispatcher-servlet配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd" default-autowire="byName">
<!-- 使注解生效 -->
<mvc:annotation-driven/>

<!-- 扫描package包下的所有注解 -->
<context:component-scan base-package="com.anonymity.mobile.blog.controller.*" />

<!-- 因为url-pattern配置的是/*，所以需要加入如下配置访问静态资源 -->
<mvc:resources mapping="/WEB-INF/jsp/demo/**" location="/WEB-INF/jsp/demo/" cache-period="31556926"/>

<!-- 配置jsp视图 -->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp"/>
<property name="suffix" value=".jsp"/>
<property name="contentType" value="text/html;charset=UTF-8"/>
</bean>
</beans>

4.controller类

package com.anonymity.mobile.blog.controller.demo;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class UserController {

@RequestMapping(method = { RequestMethod.GET }, value = { "/demo/userList" })
public String demo() {
return "/demo/userList";
}
}

SpringMVC常用注解说明

@controller……………………………………………………………将spring的bean注入的上下文中，控制层专用

@RequestMapping………………………………………………..定义url规则，可以为一个类定义，也可以给每个方法定义

@ResponseBody……………………………………………………声明返回的是内容，json、xml等。

@RequestParam…………………………………………………….绑定请求参数

5.
98b3
jsp文件

hello

6.在浏览器中输入http://127.0.0.1:8080/demo/userList.html，可看到hello。