整合SSH三个框架

其他 2018-09-30 04:50:11 阅读次数: 0

整合SpringMVC和Spring和Hibernate

新建一个maven项目sshweb： 

     SpringMVC和Spring：5.0.8

     Hibernate：5.2.17.Final

     mysql驱动：5.1.46

一、在 pom.xml 中导入包的依赖

  <dependencies>
  <!-- spring -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>5.0.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>5.0.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>5.0.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>5.0.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
			<version>5.0.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-orm</artifactId>
			<version>5.0.8.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>5.0.8.RELEASE</version>
		</dependency>
<!-- servlet -->		
        <dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>3.1.0</version>
			<scope>provided</scope>
		</dependency>
		<dependency>
			<groupId>javax.servlet.jsp</groupId>
			<artifactId>jsp-api</artifactId>
			<version>2.2</version>
			<scope>provided</scope>
		</dependency>
<!-- log4j -->
		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.17</version>
		</dependency>
		<dependency>
			<groupId>commons-logging</groupId>
			<artifactId>commons-logging</artifactId>
			<version>1.2</version>
		</dependency>
<!-- taglibs -->		
		<dependency>
			<groupId>org.apache.taglibs</groupId>
			<artifactId>taglibs-standard-spec</artifactId>
			<version>1.2.5</version>
			<type>bundle</type>
		</dependency>
		<dependency>
			<groupId>org.apache.taglibs</groupId>
			<artifactId>taglibs-standard-impl</artifactId>
			<version>1.2.5</version>
			<type>bundle</type>
		</dependency>
<!-- hibernate -->		
		<dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-core</artifactId>
			<version>5.2.17.Final</version>
		</dependency>
<!-- hibernate-c3p0包含c3p0 -->		
        <dependency>
			<groupId>org.hibernate</groupId>
			<artifactId>hibernate-c3p0</artifactId>
			<version>5.2.17.Final</version>
		</dependency>
<!-- mysql -->		
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.46</version>
		</dependency>
	</dependencies>
	
	<build>
		<plugins>
			<plugin>
				<groupId>org.apache.felix</groupId>
				<artifactId>maven-bundle-plugin</artifactId>
				<extensions>true</extensions>
			</plugin>
		</plugins>
	</build>

二、web.xml中配置，将Spring（并整合Hibernate）和SpringMVC整合起来

       1、在web.xml中配置 contextLoaderListener ,并加入spring的配置文件 applicationContext.xml 。这样可以把service、dao、事务、缓存、以及和其它框架的整合放到spring的配置文件里面。

        2、在web.xml中配置 DispatcherServlet，并加入SpringMVC的的配置文件 springmvc.xml，

这时，两个配置文件中扫描的包有重合的时候出现某些bean会被初始化2次的问题：

解决方案：在扫描包的子节点下配置 exclude-filter 和 include-filter （见配置文件），

SpringMVC只扫描Controller和ControllerAdvice:

Spring排除扫描Controller和ControllerAdvice:

       1）web.xml ：

	<!--解决中文乱码的filter一定要放在最前面  -->
    <filter>
        <filter-name>CharacterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <!-- 配置encoding，告诉我们指定的编码格式 -->
        <init-param>
            <param-name>encoding</param-name>
            <param-value>utf-8</param-value>
        </init-param>
        <!-- 解决响应乱码 -->
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

	
	<!-- 1. 指定applicationContext.xml配置文件的位置和名称及ContextLoaderListener -->
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
	<!-- 开启初始化IOC容器的监听器 -->
	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	
	<!-- 2. 指定springmvc.xml.xml配置文件的位置和名称及DispatcherServlet  -->
	<servlet>
		<servlet-name>springDispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath:springmvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<!-- 指定url地址 -->
	<servlet-mapping>
		<servlet-name>springDispatcherServlet</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
	<!--  
		/:  根目录下的所有url地址， 但是不包括servlet
		/*: 根目录下的所有url地址， 包括servlet, 一般用在filter配置
	-->
	<!-- hiddenHttpMethodFilter过滤器处理REST：将指定的POST请求转化为put请求或delele请求 -->
	<filter>
		<filter-name>hiddenHttpMethodFilter</filter-name>
		<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>hiddenHttpMethodFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<!-- 解决懒加载异常过滤器： session生命周期和requset请求的生命周期绑定 -->
	<filter>
		<filter-name>openSessionInViewFilter</filter-name>
		<filter-class>org.springframework.orm.hibernate5.support.OpenSessionInViewFilter</filter-class>
	</filter>
	<filter-mapping>
		<filter-name>openSessionInViewFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

           2）applicationContext.xml: 并整合Hibernate （orm使用*.hbm.xml），


	<!-- 1. 导入源属性文件 -->
	<context:property-placeholder location="classpath:application.properties" />
	<!-- c3p0 连接池 -->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<!-- 类似EL表达式取资源文件的值 -->
		<property name="driverClass" value="${jdbc.driverClass}"></property>
		<property name="jdbcUrl" value="${jdbc.url}"></property>
		<property name="user" value="${jdbc.user}"></property>
		<property name="password" value="${jdbc.password}"></property>
		<property name="initialPoolSize" value="${c3p0.initialPoolSize}"></property>
		<property name="acquireIncrement" value="${c3p0.acquireIncrement}"></property>
		<property name="maxPoolSize" value="${c3p0.maxPoolSize}"></property>
		<property name="minPoolSize" value="${c3p0.minPoolSize}"></property>
		<property name="maxStatements" value="${c3p0.maxStatements}"></property>
		<property name="maxStatementsPerConnection"	value="${c3p0.maxStatementsPerConnection}"></property>
	</bean>
	
	<!-- 2. 整合Hibernate, 配置Hibernate的Sessionfactory实例 -->
	<bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
		<!-- 数据源 -->
		<property name="dataSource" ref="dataSource"></property>
		<!-- orm映射文件 *.hbm.xml  -->
		<property name="mappingLocations" value="classpath:cn/jq/sshweb/model/*.hbm.xml"></property>
		<!-- hibernate配置信息 -->
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">${hibernate.dialect}</prop>
				<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
				<prop key="hibernate.format_sql">${hibernate.format_sql}</prop>
				<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
			</props>
		</property>
	</bean>
	
	<!-- 3. 使用注解驱动 配置包扫描(使用默认的 Filter 进行扫描，不包含springmvc要扫的包) -->
	<context:component-scan	base-package="cn.jq.sshweb">
		<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
		<context:exclude-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
	</context:component-scan>
	
	<!-- 配置spring的hibernate5声明事务管理器 -->
	<bean id="transactionManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory"></property>
	</bean>
	
<!-- 开启事务注释 @Transactional -->
<!--<tx:annotation-driven transaction-manager="transactionManager" /> -->

	<!--  配置事务通知 -->
	<tx:advice id="tsAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="get*" read-only="true"/>
			<tx:method name="find*" read-only="true"/>
			<tx:method name="select*" read-only="true"/>
			<tx:method name="*" read-only="false"/>
		</tx:attributes>
	</tx:advice>
	<!-- 配置事务切入点 -->
	<aop:config>
		<aop:pointcut expression="execution(* cn.jq.sshweb.service.*.*(..))" id="txPointcut"/>
		<aop:advisor advice-ref="tsAdvice" pointcut-ref="txPointcut"/>
	</aop:config>
	
	<!-- 4. 配置spring的jdbcTemplate -->
	<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
		<property name="dataSource" ref="dataSource"></property>
	</bean>

        3）springmvc.xml ：

	<!-- 简写形式: 默认会帮我们注册默认处理请求，参数和返回值的类-->
	<mvc:annotation-driven />
	<!-- 让springmvc自动识别静态资源文件： js, css, 图片等 -->
	<mvc:default-servlet-handler/>
	
	<!-- 1. 使用注解驱动 配置包扫描(不使用默认的 Filter 进行扫描，包含springmvc要扫的包)  -->
	<context:component-scan base-package="cn.jq.sshweb" use-default-filters="false">
		<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
		<context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice"/>
	</context:component-scan>

	<!-- 2. 配置springmvc视图解析器ViewResolver -->
	<bean id="" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/WEB-INF/view/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>

三、需要的配置文件

      1）application.properties ：

jdbc.driverClass=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/sshweb?useUnicode=true&characterEncoding=utf8&useSSL=true
jdbc.user=root
jdbc.password=123456

c3p0.initialPoolSize=5
c3p0.acquireIncrement=5
c3p0.maxPoolSize=20
c3p0.minPoolSize=5
c3p0.maxStatements=200
c3p0.maxStatementsPerConnection=5

hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
hibernate.show_sql=true
hibernate.format_sql=true
hibernate.hbm2ddl.auto=update

       2）log4j.properties ：

log4j.rootLogger = debug,stdout, D
log4j.appender.stdout = org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target = System.out
log4j.appender.stdout.Threshold = INFO
log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d %p %m%n
log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
log4j.appender.D.File = ./log4j.log
log4j.appender.D.Append = true
log4j.appender.D.Threshold = DEBUG
log4j.appender.D.layout = org.apache.log4j.PatternLayout
log4j.appender.D.layout.ConversionPattern=%d %p %m%n

 

四、 运行项目测试

    新建一个UserController 类， 只会初始化一次。

@Controller
public class UserController {
	
	public UserController() {
		System.out.println("UserController 构造器初始化---");
	}
}

到此SSH整合就搞定了，小项目目录如下

   

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