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  • ssm框架整合

              ssm框架整合步骤                     2017-09-23  22:24:13

    一、导包(大概30个左右)

    二、创建po类

    三、创建mapper接口 和映射文件(可用逆向工程生成)

    四、创建SqlMapperContext.xml全局配置文件

    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE configuration
    PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
    "http://www.mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
      <typeAliases>
           <package name="com.fjm.ssm.po"/>
       </typeAliases> 
    
    </configuration>

    五、配置applicationContext-dao.xml

       配置内容包括数据源和sqlSessionFactory

    <?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"
           xsi:schemaLocation="
           http://www.springframework.org/schema/beans 
           http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx.xsd
           http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop.xsd
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context.xsd
           ">
    <!--  <context:component-scan base-package="com.fjm.mapper"></context:component-scan> -->
    <!-- 配置spring的公共模块 -->
    <!-- 1 加载properties文件 -->
        <context:property-placeholder location="classpath:jdbcInfo.properties"/>
        <!-- 2 配置数据源 -->
        <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
            <property name="driverClass" value="${jdbc.driverClass}"></property>
            <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
            <property name="user" value="${jdbc.user}"></property>
            <property name="password" value="${jdbc.password}"></property>
        </bean>
         
       <!--配置SqlSessionFactory  -->
       <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
           <!--加载全局配置文件  -->
           <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml"></property>
           <!--引入数据源  -->
           <property name="dataSource" ref="dataSource"></property>
       </bean>
       
      
       <!--批量  代理mapper  会加载mapper目录下的映射文件和接口-->
       <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
          <property name="basePackage" value="com.fjm.ssm.mapper"></property>
       </bean>
    </beans>

    六、创建service接口和实现类,调用mapper接口实现数据调用

    package com.fjm.ssm.service;
    
    import java.util.List;
    
    
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    
    import com.fjm.ssm.mapper.ItemsExtMapper;
    import com.fjm.ssm.po.Items;
    import com.fjm.ssm.po.ItemsQuery;
    
    @Service
    public class ItemsServiceImpl implements ItemsService {
        
        @Autowired
        private ItemsExtMapper mapper;
        @Override
        public List<Items> queryItemsByItemsQuery(ItemsQuery vo) {
            return mapper.ItemsQuery(vo);
        }
    
    }

    七、配置applicationContext-service.xml,实现service层的事务管理

    <?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"
           xsi:schemaLocation="
           http://www.springframework.org/schema/beans 
           http://www.springframework.org/schema/beans/spring-beans.xsd
           http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx.xsd
           http://www.springframework.org/schema/aop 
           http://www.springframework.org/schema/aop/spring-aop.xsd
           http://www.springframework.org/schema/context 
           http://www.springframework.org/schema/context/spring-context.xsd
           ">
    
      <!--扫描service里的方法进行事件控制  -->
         <context:component-scan base-package="com.fjm.ssm.service"></context:component-scan>
        
        <!--配置事务管理器  -->
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
           <property name="dataSource" ref="dataSource"></property>
        </bean>
            
         <!--配置通知  -->
        <tx:advice id="txAdvice" transaction-manager="transactionManager">
            <tx:attributes>
                <!-- 传播特性 -->
                <tx:method name="save*" propagation="REQUIRED" />
                <tx:method name="add*" propagation="REQUIRED" />
                <tx:method name="insert*" propagation="REQUIRED" />
                <tx:method name="delete*" propagation="REQUIRED" />
                <tx:method name="del*" propagation="REQUIRED" />
                <tx:method name="remove*" propagation="REQUIRED" />
                <tx:method name="update*" propagation="REQUIRED" />
                <tx:method name="modify*" propagation="REQUIRED" />
                <tx:method name="find*" read-only="true" />
                <tx:method name="query*" read-only="true" />
                <tx:method name="select*" read-only="true" />
                <tx:method name="get*" read-only="true" />
            </tx:attributes>
        </tx:advice>
        <!--配置切面  -->
        <aop:config>
            <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.fjm.ssm.service.*.*(..))"/>
        </aop:config>
     </beans>

    八、配置springmvc.xml配置文件来配置controller的 业务访问处理

    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
        xmlns:context="http://www.springframework.org/schema/context"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
        xsi:schemaLocation="http://www.springframework.org/schema/beans 
            http://www.springframework.org/schema/beans/spring-beans-3.2.xsd 
            http://www.springframework.org/schema/mvc 
            http://www.springframework.org/schema/mvc/spring-mvc-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 ">
        
        <!--扫描,使该包下的注解生效  -->
        <context:component-scan base-package="com.fjm.ssm.controller"></context:component-scan>
    
       <!--处理器映射器和适配器  -->
       <mvc:annotation-driven/>
       
       <!-- 配置视图解析器 -->
       <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
          <property name="prefix" value="/WEB-INF/"></property>
          <property name="suffix" value=".jsp"></property>
       </bean>
    </beans>

    九、配置web.xml
        

    <?xml version="1.0" encoding="UTF-8"?>
    <web-app version="2.5" 
        xmlns="http://java.sun.com/xml/ns/javaee" 
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
        http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
        
        <servlet>
          <servlet-name>springmvc</servlet-name>
          <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
          <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:spring/springmvc.xml</param-value>
          </init-param>
        </servlet>
        <servlet-mapping>
           <servlet-name>springmvc</servlet-name>
           <url-pattern>*.do</url-pattern>
        </servlet-mapping>
        
        <!--  加载spring容器-->
        <context-param>
           <param-name>contextConfigLocation</param-name>
           <param-value>classpath:spring/applicationContext-*.xml</param-value>
        </context-param>
        <listener>
           <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
        </listener>
      
      
      
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
      </welcome-file-list>
    </web-app>

    十、创建controller 类处理业务访问操作

    @Controller
    public class QueryController {
    
        @Autowired
        private ItemsService service;
    
        @RequestMapping("/generatorMethod")
        public ModelAndView generatorMethod() {
    
    
    。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。
    }

     十一、分析流程

    ①tomcat启动时,加载spring容器,contorller、service、mapper下的文件被加载

    ②调用过程 :   jsp页面 调用controller -->   被处理器拦截  -->  进入springmvc.xml  -->   进入controller   -->  调用 service层   -->  调用mapper接口  -->

    自动生成实现类,调用映射文件,进行sql语句发送  -->  进入applicationContext-dao.xml 与数据库进行数据访问

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  • 原文地址:https://www.cnblogs.com/fengjunming/p/7583229.html
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