SSM整合配置檔案

Spring+Mybatis+SpringMVC架構是目前流行的JavaWeb架構組合。

整合主要分為三層：Controller層 Service層 Dao層

Dao層

Dao層是資料持久層，主要用來與資料庫進行互動，并且将與資料庫互動的結果傳回給Service層。

配置檔案 applicationContext-Dao.xml

Dao層配置檔案主要配置1.資料源2.SqlSessionFactory3.Mapper包掃描

<?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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- 配置 讀取properties檔案 jdbc.properties -->
	<context:property-placeholder location="classpath:jdbc.properties" />

	<!-- 配置 資料源 -->
	<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
		<property name="driverClassName" value="${jdbc.driver}" />
		<property name="url" value="${jdbc.url}" />
		<property name="username" value="${jdbc.username}" />
		<property name="password" value="${jdbc.password}" />
	</bean>

	<!-- 配置SqlSessionFactory -->
	<bean class="org.mybatis.spring.SqlSessionFactoryBean">
		<!-- 設定MyBatis核心配置檔案 -->
		<property name="configLocation" value="classpath:SqlMapConfig.xml" />
		<!-- 設定資料源 -->
		<property name="dataSource" ref="dataSource" />
		<!-- 别名包掃描 -->
		<property name="typeAliasesPackage" value="cn.hjc.crm.pojo" />
	</bean>

	<!-- 配置Mapper掃描 -->
	<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		<!-- 設定Mapper掃描包 -->
		<property name="basePackage" value="cn.hjc.crm.mapper" />
	</bean>
</beans>

Service層

service層是業務邏輯層，主要是進行業務邏輯的運算，需要在service層配置事務管理

配置檔案 applicationContext-Service.xml

service層配置檔案主要配置service層掃描，掃描帶@Service注解的類

<?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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">
	<!-- 配置@Service類的包掃描 -->
	<context:component-scan base-package="cn.hjc.crm.service"/>
</beans>

配置檔案 applicationContext-Trans.xml

事務管理配置檔案

<?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-4.0.xsd
	http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
	http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">

	<!-- 事務管理器 -->
	<bean id="transactionManager"	class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<!-- 資料源 -->
		<property name="dataSource" ref="dataSource" />
	</bean>

	<!-- 通知 -->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<!-- 傳播行為 -->
			<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:method name="query*" propagation="SUPPORTS" read-only="true" />
		</tx:attributes>
	</tx:advice>

	<!-- 切面 -->
	<aop:config>
		<aop:advisor advice-ref="txAdvice"
			pointcut="execution(* cn.hjc.crm.service.*.*(..))" />
	</aop:config>

</beans>

Controller層

控制層，主要接收使用者請求，調用Service層處理請求，擷取資料然後傳遞給視圖

配置檔案 springMVC.xml

controller層配置檔案主要配置controller掃描器，注解驅動，視圖解析器

<?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-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
	<!-- 配置Controller掃描 -->
	<context:component-scan base-package="cn.hjc.crm.controller" />
	<!-- 屬性檔案的加載 -->
	<context:property-placeholder location="classpath:crm.properties"/>

	<!-- 配置注解驅動 -->
	<mvc:annotation-driven />

	<!-- 配置視圖解析器 -->
	<bean	class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<!-- 字首 -->
		<property name="prefix" value="/WEB-INF/jsp/" />
		<!-- 字尾 -->
		<property name="suffix" value=".jsp" />
	</bean>
</beans>

另附上Web.xml檔案

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">


    <!-- 配置spring -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring/applicationContext-*.xml</param-value>
    </context-param>

    <!-- 配置監聽器加載spring -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 配置過濾器，解決post的亂碼問題 -->
    <filter>
        <filter-name>encoding</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 配置SpringMVC -->
    <servlet>
        <servlet-name>boot-crm</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>
        <!-- 配置springmvc什麼時候啟動，參數必須為整數 -->
        <!-- 如果為0或者大于0，則springMVC随着容器啟動而啟動 -->
        <!-- 如果小于0，則在第一次請求進來的時候啟動 -->
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>boot-crm</servlet-name>
        <!-- 所有的請求都進入springMVC -->
        <url-pattern>*.action</url-pattern>
    </servlet-mapping>


</web-app>

SSM整合配置檔案

Dao層

Service層

Controller層

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