一 SSH整合：Spring整合Struts2的两种方式，struts.xml管理Action&Bean管理Action

SSH回顾

1 引入jar包

Struts2的jar包

• D:\Struts2\struts-2.3.35\apps\struts2-blank\WEB-INF\lib  开发基本包
• Struts2有一些包是需要了解的：
• struts2-convention-plugin-2.3.35   注解开发包
• struts2-json-plugin-2.3.35.jar  整合ajax
• struts2-spring-plugin-2.3.35.jar  整合Spring

Hibernate的jar包

• D:\Hibernate\hibernate-release-5.0.7.Final\lib\required  开发必须
• mysql-connector-java-5.1.43-bin   mysql驱动
• 日志记录
• 注意：Struts2和Hibernate都引入了一个相同的javasistjar包（javasist版本不一样容易冲突），删掉一个版本低的
• 使用C3P0连接池，还需要引：

Spring的jar包

• IOC的开发
• AOP的开发
• JDBC模版的开发
• 整合web项目的开发
• 整合单元测试
• 整合Hibernate的开发

IOC的6个基本包

AOC的包

JDBC开发，事务管理：

整合单元测试：spring-test-4.2.4.RELEASE.jar

整合web项目：

整合Hibernate的开发：

进行Spring和Struts2的整合：

引入整合的插件包

第二步：引入配置文件

Struts2的配置文件：

• web.xml
• struts.xml

Hibernate的配置文件：

• hibernate.cfg.xml，删掉与线程绑定的session
• 映射文件
• 日志文件

Spring的配置文件：

• web.xml
• applicationContext.xml
• 日志记录(一个就行，如果引过) log4j.properties

第三步：创建包结构和类

第四步： 引入相关的页面

第五步：修改menu.jsp，修改add.jsp

第六步：编写Action，添加到提交数据到action

第七步：Spring整合Struts2 方式一：Action由Struts2创建(Service由Spring，在Action类中注入Service)

编写Action：

在action中引入Service

传统方式：

进行Spring和Struts2的整合：

引入整合的插件包

在插件包中有如下配置：

开启了一个常量，在Struts2中开启这个常量，就会引发下面常量生效

让action按照名称自动注入service

将service交给Spring管理：

Action中注入Service

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第八步：Spring整合Struts2方式二：Action交给Spring创建（推荐，如果用Struts2创建Action不如用Spring工厂配置，因为可以用AOP增强action）

引入插件包

将Action交给Spring

struts.xml配置Action，使用Spring创建的

注意：

1 原来的Action是多例的，现在是单例的，一个Action只有一个值栈，如果你保存，删除，修改都用一个值栈，在取值的时候就会出现问题。

2 需要手动注入Service

测试：

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第九步：Service调用Dao

将Dao交给Spring管理

在Service层注入Dao

第十步：Spring整合Hibernate框架

• 创建数据库和表
• 编写实体和映射

Spring和Hibernate整合

在Spring配置文件中引入Hibernate配置信息

在Spring和Hibernate整合后，Spring提供了一个Hibernate的模板类，用来简化Hibernate开发，改写Dao继承HibernateDaoSupport

配置的时候在Dao中直接注入SessionFactory,就会创建Hibernate模版类

在Dao中使用Hibernate的模版实现保存操作

第十步：配置Spring的事务管理

配置事务管理器

开启注解事务

在业务层使用注解

测试：

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

     <!--通过context标签引入jdbc.properties -->
     <context:property-placeholder location="classpath:jdbc.properties"/>

<!--      <context:annotation-config/>     -->

     <!-- 配置C3P0连接池 -->
     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
       <property name="driverClass" value="${jdbc.driverClass}"/>
       <property name="jdbcUrl" value="${jdbc.url}"/>
       <property name="user" value="${jdbc.user}"/>
       <property name="password" value="${jdbc.password}"/>
     </bean>

    <!-- 配置Action -->
    <bean id="customerAction" class="com.ssh.web.action.CustomerAction" scope="prototype">
       <property name="customerService" ref="customerService"/>
    </bean>

    <!-- 注入CustomerService -->
    <bean id="customerService" class="com.ssh.service.impl.CustomerServiceImpl">
    <property name="customerDao" ref="customerDao"/>
    </bean>

    <!-- 注入Dao -->
    <bean id="customerDao" class="com.ssh.dao.impl.CustomerDaoImpl">

    </bean>

</beans>