struts2+Mybatis+spring 框架整合

一.创建web项目导入必需的jar文件

二.创建并编写配置文件，配置文件比较多。

XML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"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
    
    <!--配置数据源属性文件  -->
    <bean id="propertyConfigurer"
        class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="location">
            <value>/WEB-INF/configs/sqlServer.properties</value>
        </property>
    </bean>
    
    <!--配置数据源  -->
    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName">
            <value>${jdbc.driver}</value>
        </property>
        <property name="url">
            <value>${jdbc.url}</value>
        </property>
        <property name="username">
            <value>${jdbc.user}</value>
        </property>
        <property name="password">
            <value>${jdbc.pwd}</value>
        </property>
    </bean>
    
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">  
        <property name="configLocation" value="classpath:com/test/sqlMapper/mybatis_config.xml" />  
        <property name="dataSource" ref="dataSource" />  
    </bean> 
    
    
    <bean id="loginDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="mapperInterface" value="com.test.dao.ILoginDao"/>
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
    </bean>

    <bean id="loginAction" class="com.test.action.LoginAction">
        <property name="loginDao" ref="loginDao"></property>
    </bean>
</beans>

其实applicationContext.xml也可用DBCP配置数据连接参数，开启注解扫描，本人比较推荐，简单实用！一下是配置代码：

<!-- 1.定义DBCP组件加载数据库连接参数 -->
<bean id="dbcp" class="org.apache.commons.dbcp.BasicDataSource">
    <property name="username" value="root"></property>
    <property name="password" value="wyq881205"></property>
    <property name="url" value="jdbc:mysql://localhost:3306/bill?useUnicode=true&amp;characterEncoding=utf8"></property>
    <property name="driverClassName" value="com.mysql.jdbc.Driver"></property>
</bean>

<!-- 2.注入连接信息 -->
<bean id="ssf" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dbcp"></property>
    <property name="mapperLocations" value="classpath:com/ablii/sql/*.xml"></property>
</bean>

<!-- 3.MapperScannerConfigrer配置 -->
<bean id="mapperscanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="sqlSessionFactory" ref="ssf"></property>
    <property name="basePackage" value="com.ablii.dao"></property>
</bean>

三.接下来就是web.xml。

<filter>
          <filter-name>123</filter-name>
          <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter>
  <filter-mapping>
          <filter-name>123</filter-name>
          <url-pattern>/*</url-pattern>
  </filter-mapping>
  
  <context-param>
          <param-name>contextConfigLocation</param-name>
          <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

三.接下来就是struts.xml和业务关联了。

<struts>
    <package name="demo1" extends="struts-default">
        <!-- name请求名;class Action类型;
          method Action类方法名,默认execute -->
        <action name="hello" method="execute"
            class="org.tarena.action.HelloAction">
            <!-- name标识符与action方法返回值对应
             type指定result组件类型 -->
            <result name="success" type="dispatcher">
                /WEB-INF/hello.jsp
            </result>
        </action>
    </package>
    
    <package name="demo2" namespace="/user"
        extends="struts-default">
        <!-- 对应/tologin.action或/tologin
         class省略默认使用框架的Action
         method默认execute -->
        <action name="tologin">
            <!-- name默认success;type默认dispatcher -->
            <result>
            /WEB-INF/login.jsp
            </result>
        </action>
        
        <action name="login" 
            class="org.tarena.action.LoginAction">
            <result name="success">
                /WEB-INF/ok.jsp
            </result>
            <result name="error">
                /WEB-INF/login.jsp
            </result>
        </action>
        
    </package>
    
    
    
</struts>

最后在在mybatis中有个映射文件Mapper.xml  写上你的SQL语句就可以注意一下参数类型，和返回值类型还有参数的个数。

这也要求定义的实体类必须符合JAVABEAN规范。