MVC架构Maven项目（五）Spring集成

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1.web.xml配置

<!--     第一个*代表不仅在class路径查找，还会在jar中的class路径查找；    第二**代表class路径下的任意目录    第三个*任意以application-context开头的文件--><context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath*:**/application-context*.xml</param-value></context-param><!-- Spring Configuration Spring配置 --><listener>    <listener-class>        org.springframework.web.context.ContextLoaderListener    </listener-class></listener>

2.application-context.xml配置

<?xml version="1.0" encoding="utf-8"?><beans xmlns="http://www.springframework.org/schema/beans"   xmlns:context="http://www.springframework.org/schema/context"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-3.2.xsd            http://www.springframework.org/schema/context            http://www.springframework.org/schema/context/spring-context-3.2.xsd"><!-- 隐式地向 Spring 容器注册 AutowiredAnnotationBeanPostProcessor、CommonAnnotationBeanPostProcessor、PersistenceAnnotationBeanPostProcessor 以及equiredAnnotationBeanPostProcessor 这 4 个 BeanPostProcessor -->    <context:annotation-config/>     <context:component-scan base-package="com.anonymity.mobile.blog.*"/>     </beans>

3.Service类

package com.anonymity.mobile.blog.service;import java.util.List;import com.anonymity.mobile.blog.entity.Users;public interface UserService {    /**     * 用户列表     * @return     */    public List<Users> userList();}

4.ServiceImpl类

package com.anonymity.mobile.blog.serviceimpl;import java.util.ArrayList;import java.util.List;import org.springframework.stereotype.Component;import com.anonymity.mobile.blog.entity.Users;import com.anonymity.mobile.blog.service.UserService;@Component("userServcie")public class UserServiceImpl implements UserService {    /**     * 用户列表     * @return     * @see com.anonymity.mobile.blog.service.UserService#userList()     */    @Override    public List<Users> userList() {        List<Users> list = new ArrayList<Users>();        Users u1 = new Users();        u1.setUserName("admin");        u1.setPwd("000000");        Users u2 = new Users();        u2.setUserName("guest");        u2.setPwd("000000");        list.add(u1);        list.add(u2);        return list;    }}

5.JSP页面

<%@page import="java.util.*"%>  <%@page import="com.anonymity.mobile.blog.entity.*"%>  <html><body><%    List<Users> userList = (List<Users>)request.getAttribute("userList");    for(Users user:userList){        out.println("<h1>"+user.getUserName()+"</h1>");    }%></body></html>

6.备注

6.1调整web.xml配置

<servlet-mapping>    <servlet-name>dispatcher</servlet-name>    <url-pattern>*.html</url-pattern></servlet-mapping><servlet-mapping>    <servlet-name>dispatcher</servlet-name>    <url-pattern>*.json</url-pattern></servlet-mapping>

6.2调整dispatch-servlet.xml配置

<!--<mvc:resources mapping="/WEB-INF/jsp/demo/**" location="/WEB-INF/jsp/demo/" cache-period="31556926"/>-->

InternalResourceViewResolver将视图名解析为一个url，可以理解为转发获取jsp页面。如果使用/*拦截，则需要配置<mvc:resources mapping="/WEB-INF/jsp/demo/**" location="/WEB-INF/jsp/demo/" cache-period="31556926"/>标签或者 <mvc:default-servlet-handler/>，就可以访问静态资源了。但是这样的话就显示jsp源码了，并没有解析为servlet。所以使用*.html拦截。

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