SSH整合

SSH分别代表的是spring,springmvc,hibernate三个框架，其中spring作用于三层架构中的service层，springmvc作用于三层架构中的servlet层，hibernate作用于三层架构中的dao层。

SSH整合第一步是添加依赖(pom.xml)

• spring依赖：spring-context；
• springmvc依赖：spring-webmvc；
• hibernate依赖：hibernate-core；
• spring对接数据库：spring-jdbc；
• spring对接hibernate：spring-orm；
• jdbc依赖：mysql-connector-java；
• dbcp依赖 数据库连接池：commons-dbcp2；
• 如果用上jstl标签库，需要添加jstl;
• 如果需要用上ajax,同时还需要绑定json，需要添加依赖：jackson-databind
• 如果需要文件上传和下载，需要添加依赖：commions-io,commions-fileupload;
• 需要阿里云短信验证的话，需要添加依赖：aliyun-java-sdk-dysmsapi，aliyun-java-sdk-core

SSH整合第二步（配置web.xml）

<?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_3_1.xsd"
  version="3.1"
  metadata-complete="true">
  <display-name>Archetype Created Web Application</display-name>


    <!--配置编码转换器-->

   <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>



   <!-- 添加监听器，监听应用启动 -->
  <listener >
  <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>

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





  <!-- 前端控制器 -->
  <servlet>
  <servlet-name>dispatcherServlet</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>
  <load-on-startup>1</load-on-startup>
  </servlet>

  <servlet-mapping>
  <servlet-name>dispatcherServlet</servlet-name>
  <url-pattern>/</url-pattern>
  </servlet-mapping>

</web-app>

SSH整合第三步（配置applicationContext-dao层，将hibernate的部分配置交给spring）

<?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:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd">
  		<!--配置四大组件  -->
  		<context:property-placeholder location="classpath:hibernate/jdbc.properties"/>
  		 <!-- dbcp数据库连接池 -->
         <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource">
        	<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>
        <!-- 构建sessionFactory -->
        <bean id="sessionFactory" class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <!-- 加载数据源 -->
        <property name="dataSource" ref="dataSource"></property>
        <!--加载核心配置文件  -->
        <property name="configLocations" value="classpath:hibernate/hibernate.cfg.xml"></property>
        <!--  加载映射文件-->
        <property name="packagesToScan" value="com.zhiyou100.video.pojo"></property>
        </bean>
  		<!-- hibernate事物管理 -->
  		<bean id="txManager" class="org.springframework.orm.hibernate5.HibernateTransactionManager">
  			<property name="sessionFactory" ref="sessionFactory"></property>
  		</bean>
  		<tx:annotation-driven transaction-manager="txManager"/>
  </beans>    

在配置数据库连接池时，需要配置一个jdbc.properties文件

jdbc.Driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/video
jdbc.username=root
jdbc.password=6018

SSH整合第四步（applicationContext-servicec层，配置spring）

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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/context
        http://www.springframework.org/schema/context/spring-context.xsd">

        <!-- 扫描包 -->
        <context:component-scan base-package="com.zhiyou100.video.service"></context:component-scan>
        <context:component-scan base-package="com.zhiyou100.video.dao"></context:component-scan>

        </beans>

SSH整合第五步（配置springmvc）

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc.xsd">
        <context:component-scan base-package="com.zhiyou100.video.controller"></context:component-scan>

        <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>

        <!--静态资源放行  -->
        <mvc:default-servlet-handler/>

  <mvc:annotation-driven>
    <mvc:message-converters>
        <bean class="org.springframework.http.converter.StringHttpMessageConverter"/>
        <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"/>
    </mvc:message-converters>
</mvc:annotation-driven>

		<bean id="multipartResolver"  class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
		<property name="maxUploadSize" value="10240000000000000"/>
	   	</bean>

       </beans>

       

SSH整合第六步（配置hibernate.cfg.xml）

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
	"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
	"http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
	<hibernate-configuration>
		<session-factory>
		<!--方言  -->
		<property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
		<!-- 显示sql -->
		<property name="hibernate.show_sql">true</property>
		<property name="hibernate.format_sql">true</property>
		</session-factory>
	</hibernate-configuration>