前面的增删改查还没有融入到一个web项目中,这里在前面的基础上,集成spring管理相关的bean,并在web层集成springmvc。同样会有源码的下载。
一、目录结构:
二、集成spring:
因为是一个web项目,且使用了spring作为粘合剂,相关的jar包就不多解释了,详见源码。项目上篇文章中的结构,这里把映射文件单独放到一个目录,而且添加了Controller的包,映射文件内容不变。注意到这里讲其他配置文件整合到了config包中。因为使用spring,所以Configuration.xml中的数据连接就移动到了applicationContext.xml文件中,当然可以独立到database.properties文件中。
spring管理的事务、Mybatis的sqlSessionFactoryBean,以及项目要扫描的Mybatis的映射文件包路径属性,数据源等都在applicationContext.xml文件中:
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- <?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:aop="http://www.springframework.org/schema/aop"
- xmlns:tx="http://www.springframework.org/schema/tx"
- xmlns:context="http://www.springframework.org/schema/context"
- xmlns:p="http://www.springframework.org/schema/p"
- xsi:schemaLocation="
- http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
- http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
- http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
- http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd
- http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"
- default-autowire="byName" default-lazy-init="false">
- <!--本示例采用DBCP连接池,应预先把DBCP的jar包复制到工程的lib目录下。 -->
- <context:property-placeholder location="classpath:/config/database.properties" />
- <!-- <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
- destroy-method="close" p:driverClassName="com.mysql.jdbc.Driver"
- p:url="jdbc:mysql://127.0.0.1:3306/mybatis?characterEncoding=utf8"
- p:username="root"
- p:password="123"
- p:maxActive="10"
- p:maxIdle="10">
- </bean> -->
- <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
- <property name="dataSource" ref="dataSource" />
- </bean>
- <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
- <!--dataSource属性指定要用到的连接池-->
- <property name="dataSource" ref="dataSource"/>
- <!--configLocation属性指定mybatis的核心配置文件-->
- <property name="configLocation" value="classpath:config/Configuration.xml" />
- <!-- 所有配置的mapper文件 -->
- <property name="mapperLocations" value="classpath*:com/tgb/mybatis/mapper/*.xml" />
- </bean>
- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
- <property name="basePackage" value="com.tgb.mybatis.inter" />
- </bean>
- </beans>
三、集成springMVC:
相关的jar包参见源码,springMVC充当了web端的框架,mvc-dispatcher-servlet.xml和web.xml中是相关的配置。
mvc-dispatcher-servlet.xml:
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- <beans xmlns="http://www.springframework.org/schema/beans"
- xmlns:context="http://www.springframework.org/schema/context"
- xmlns:mvc="http://www.springframework.org/schema/mvc" 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-3.0.xsd
- http://www.springframework.org/schema/context
- http://www.springframework.org/schema/context/spring-context-3.0.xsd
- http://www.springframework.org/schema/mvc
- http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
- <context:component-scan base-package="com.tgb.controller" />
- <mvc:annotation-driven />
- <mvc:resources mapping="/static/**" location="/WEB-INF/static/"/>
- <mvc:default-servlet-handler/>
- <bean
- class="org.springframework.web.servlet.view.InternalResourceViewResolver">
- <property name="prefix">
- <value>/WEB-INF/pages/</value>
- </property>
- <property name="suffix">
- <value>.jsp</value>
- </property>
- </bean>
- </beans>
web.xml:
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- <?xml version="1.0" encoding="UTF-8"?>
- <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_2_5.xsd" id="WebApp_ID" version="2.5">
- <display-name>MyBatis_Spring_MVC</display-name>
- <welcome-file-list>
- <welcome-file>index.jsp</welcome-file>
- </welcome-file-list>
- <filter>
- <filter-name>encodingFilter</filter-name>
- <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
- <init-param>
- <param-name>encoding</param-name>
- <param-value>UTF-8</param-value>
- </init-param>
- <init-param>
- <param-name>forceEncoding</param-name>
- <param-value>true</param-value>
- </init-param>
- </filter>
- <filter-mapping>
- <filter-name>encodingFilter</filter-name>
- <url-pattern>/*</url-pattern>
- </filter-mapping>
- <context-param>
- <param-name>contextConfigLocation</param-name>
- <param-value>classpath*:config/applicationContext.xml</param-value>
- </context-param>
- <listener>
- <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
- </listener>
- <listener>
- <listener-class>
- org.springframework.web.context.ContextCleanupListener</listener-class>
- </listener>
- <!-- mvc配置 -->
- <servlet>
- <servlet-name>mvc-dispatcher</servlet-name>
- <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
- <load-on-startup>1</load-on-startup>
- </servlet>
- <servlet-mapping>
- <servlet-name>mvc-dispatcher</servlet-name>
- <url-pattern>/</url-pattern>
- </servlet-mapping>
- </web-app>
web.xml中的启动顺序是:context-param—》listener—》filter—》servlet,如果servlet配置了load-on-startup参数(非负整数,含0,且越小越优先启动)才会在服务器启动的时候加载到内存。
控制层:
UserController,相当于struts中的action,因为使用注解,省去了像struts中的一堆的配置,个人感觉这样对开发和维护都很方便:
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- @Controller
- @RequestMapping("/article")
- public class UserController {
- @Autowired
- IUserOperation userMapper;
- @RequestMapping("/list")
- public ModelAndView listall(HttpServletRequest request,HttpServletResponse response){
- List<Article> articles=userMapper.getUserArticles(1);
- ModelAndView mav=new ModelAndView("list");
- mav.addObject("articles",articles);
- return mav;
- }
- }
展示层:
界面使用el表达式,解析返回的数据:
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- <body>
- <c:forEach items="${articles}" var="item">
- ${item.id }--${item.title }--${item.content }<br />
- </c:forEach>
- </body>
四、测试:
这里使用的是tomcat7,部署之后,访问:http://localhost:8080/MyBaits_Spring_MVC//article/list可以看到下面的效果:
注意这里的url,端口后的地址是在controller中配置的,跟struts中稍微有些区别。
五、总结:
到这里才算是一个比较简单的web项目,有了前面文章的铺垫,这里只需要添加spring和mvc的配置,并添加一个controller即可。
Mybatis还有其他很多的功能,比如,动态语句,自动生成代码,相关的一些插件,如分页插件等,有了这些基础,会在后续的文章中,逐步贴出相关的源码。
整理的比较粗略,将代码分享给大家,【源码地址获取】