zoukankan      html  css  js  c++  java
  • SSM三大框架整合思路

    1、Dao层:

    Mybatis的配置文件:SqlMapConfig.xml

    不需要配置任何内容,需要有文件头。文件必须存在。

    applicationContext-dao.xml:

    mybatis整合spring,通过由spring创建数据库连接池,spring管理SqlSessionFactory、mapper代理对象。需要mybatis和spring的整合包。

    2、Service层:

    applicationContext-service.xml:

    所有的service实现类都放到spring容器中管理。并由spring管理事务。

    3、表现层:

    Springmvc框架,由springmvc管理controller。

    Springmvc的三大组件。

     创建SqlMapConfig.xml配置文件

    <?xml version="1.0" encoding="UTF-8" ?>
    <!DOCTYPE configuration
            PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
            "http://mybatis.org/dtd/mybatis-3-config.dtd">
    <configuration>
    
    </configuration>
    
    6.4.2.    Spring整合mybatis
    创建applicationContext-dao.xml
    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
        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-4.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">
    
        <!-- 数据库连接池 -->
        <!-- 加载配置文件 -->
        <context:property-placeholder location="classpath:conf/db.properties" />
        <!-- 数据库连接池 -->
        <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
            destroy-method="close">
            <property name="url" value="${jdbc.url}" />
            <property name="username" value="${jdbc.username}" />
            <property name="password" value="${jdbc.password}" />
            <property name="driverClassName" value="${jdbc.driver}" />
            <property name="maxActive" value="10" />
            <property name="minIdle" value="5" />
        </bean>
        <!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <!-- 数据库连接池 -->
            <property name="dataSource" ref="dataSource" />
            <!-- 加载mybatis的全局配置文件 -->
            <property name="configLocation" value="classpath:mybatis/SqlMapConfig.xml" />
        </bean>
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="cn.e3mall.mapper" />
        </bean>
    </beans>
    View Code

    db.properties

    jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/e3mall?characterEncoding=utf-8
    jdbc.username=root
    jdbc.password=root
    View Code

    Service整合

     管理Service

    <?xml version="1.0" encoding="UTF-8"?>
    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
        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-4.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">
    
        <context:component-scan base-package="cn.e3mall.service"/>
    </beans>

     事务管理

    创建applicationContext-trans.xml

    <beans xmlns="http://www.springframework.org/schema/beans"
        xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
        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-4.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd">
        <!-- 事务管理器 -->
        <bean id="transactionManager"
            class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <!-- 数据源 -->
            <property name="dataSource" ref="dataSource" />
        </bean>
        <!-- 通知 -->
        <tx:advice id="txAdvice" transaction-manager="transactionManager">
            <tx:attributes>
                <!-- 传播行为 -->
                <tx:method name="save*" propagation="REQUIRED" />
                <tx:method name="insert*" propagation="REQUIRED" />
                <tx:method name="add*" propagation="REQUIRED" />
                <tx:method name="create*" propagation="REQUIRED" />
                <tx:method name="delete*" propagation="REQUIRED" />
                <tx:method name="update*" propagation="REQUIRED" />
                <tx:method name="find*" propagation="SUPPORTS" read-only="true" />
                <tx:method name="select*" propagation="SUPPORTS" read-only="true" />
                <tx:method name="get*" propagation="SUPPORTS" read-only="true" />
            </tx:attributes>
        </tx:advice>
        <!-- 切面 -->
        <aop:config>
            <aop:advisor advice-ref="txAdvice"
                pointcut="execution(* cn.e3mall.service.*.*(..))" />
        </aop:config>
    </beans>

     表现层整合

     Springmvc.xml

    <?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:p="http://www.springframework.org/schema/p"
        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-4.2.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
    
        <context:component-scan base-package="cn.e3mall.controller" />
        <mvc:annotation-driven />
        <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/WEB-INF/jsp/" />
            <property name="suffix" value=".jsp" />
        </bean>
    </beans>
    View Code

    Web.xml

    <?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"
        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>e3-manager</display-name>
        <welcome-file-list>
            <welcome-file>index.jsp</welcome-file>
        </welcome-file-list>
        
        <!-- 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>
        
        <!-- 解决post乱码 -->
        <filter>
            <filter-name>CharacterEncodingFilter</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>
        </filter>
        <filter-mapping>
            <filter-name>CharacterEncodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
    
        <!-- springmvc的前端控制器 -->
        <servlet>
            <servlet-name>e3-manager</servlet-name>
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <!-- contextConfigLocation不是必须的, 如果不配置contextConfigLocation, springmvc的配置文件默认在:WEB-INF/servlet的name+"-servlet.xml" -->
            <init-param>
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath:spring/springmvc.xml</param-value>
            </init-param>
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>e3-manager</servlet-name>
            <url-pattern>/</url-pattern>
        </servlet-mapping>
    </web-app>
    View Code
    -------------------------------------------------------------------------
    ## 极客时间全网最便宜最优惠购买方式,优惠券返现 百度网盘 微信关注公众号“选门好课”
    扫描下方二维码关注我的公众号"选门好课",与我一起交流知识
  • 相关阅读:
    python按行读取并替换
    python 爬取网页内容
    file.write(str),file.writelines(sequence)
    04Spring_bean 后处理器(后处理Bean),BeanPostProcessor ,bean创建时序,动态代理
    03Spring_bean的创建和作用域以及生命周期
    02Spring_Ioc和DI介绍
    01Spring_基本jia包的导入andSpring的整体架构and怎么加入日志功能
    错题724-java
    05传智_jbpm与OA项目_部门模块中增加部门的jsp页面增加一个在线编辑器功能
    04传智_jbpm与OA项目_部门模块改进_直接在BaseAction中实现ModelDriven<T>
  • 原文地址:https://www.cnblogs.com/singworld/p/8989245.html
Copyright © 2011-2022 走看看