java综合（二）springmvc与spring整合

学习整合struts2与spring后，再学习springmvc与spring整合就比较简单了．

1.web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
    xmlns="http://java.sun.com/xml/ns/j2ee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <!-- spring mvc配置 -->
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>com.skymr.smvcs.EncodingDispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath*:/config/spring_annotation-servlet.xml</param-value>
        </init-param>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!-- spring入口 -->
    <!-- 自动加载spring配置文件WEB-INF/applicationContenxt.xml -->
    <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- 修改spring配置文件路径 -->
    <context-param>
         <param-name>contextConfigLocation</param-name>
         <param-value>WEB-INF/classes/config/applicationContext.xml</param-value>
    </context-param>
</web-app>

spring配置文件与springmvc配置文件都放到src/config/下
2.springmvc配置文件

<?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:tx="http://www.springframework.org/schema/tx"
    xmlns:context="http://www.springframework.org/schema/context"
    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/tx
    http://www.springframework.org/schema/tx/spring-tx-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/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">
    <!-- 视图解释类 -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp"/><!--可为空,方便实现自已的依据扩展名来选择视图解释类的逻辑  -->
    </bean>

    <mvc:resources mapping="/image/**" location="/image/" />
    <mvc:resources mapping="/js/**" location="/js/" />
    <!-- 自动扫描包 -->
    <context:component-scan base-package="com.skymr.smvcs.hello.ctrl"></context:component-scan>
    <!-- 开启注解 -->
    <mvc:annotation-driven></mvc:annotation-driven>

    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 默认编码 -->
        <property name="defaultEncoding" value="UTF-8"></property>
        <!-- 上传文件大小限制 -->
        <property name="maxUploadSize" value="3000000"></property>
        <!-- 缓存大小 -->
        <property name="maxInMemorySize" value="40960"></property>
    </bean>
</beans>

３.Service ,serviceBean与controller类　

package com.skymr.smvcs.hello.service;

public interface HelloWorldService {

    public void say();
}

package com.skymr.smvcs.hello.service.impl;

import com.skymr.smvcs.hello.service.HelloWorldService;

public class HelloWorldServiceBean implements HelloWorldService{

    public void say() {
        System.out.println("springmvc-spring第一个实例：Hello World!!!");
    }

}

package com.skymr.smvcs.hello.ctrl;

import javax.annotation.Resource;

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

import com.skymr.smvcs.hello.service.HelloWorldService;
@Controller
@RequestMapping("/hello")
public class HelloWorldController{

    //spring注解注入
    @Resource
    private HelloWorldService helloWorldService;

    @RequestMapping("/helloWorld")
    public String toHelloWorld(){
        System.out.println("执行HelloWorldController toHelloWorld方法");
        helloWorldService.say();
        return "index";
    }

}

4.spring配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans
    xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
    <bean id="helloWorldService" class = "com.skymr.smvcs.hello.service.impl.HelloWorldServiceBean"></bean>
</beans>

５部署测试

http://localhost:8080/springmvc_spring/hello/helloWorld显示index.jsp页面成功．

后台打印

执行HelloWorldController toHelloWorld方法
springmvc-spring第一个实例：Hello World!!!