Spring基础--Spring(你必须要懂得基础)

以你之姓@ 2022-09-21 05:54 204阅读 0赞

# 1\_Spring概述 #

**作者：** 风离紫竹--tryzq521@126.com

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   <td style="width:99.52437574316289%"> <h1>2_IOC</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
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1.IOC概述

①含义：Iversion of Control反转控制——反转资源获取的方向

②传统的获取资源的方式

组件向当前所在的环境主动的去要资源

ActionContext.getContext().getSession();

③IOC提倡的方式

由组件所在的环境负责将资源注入到组件中，组件被动接受即可

SessionAware接口→setSession()

④IOC是一种思想，最经典的实现是DI：Dependency Injection依赖注入

2.IOC容器细节

①使用IOC容器创建对象

②使用IOC容器在创建对象的同时，给对象的属性赋值

③在创建对象的过程中，实现组件对象之间的自动装配

3.搭建Spring IOC容器需要的开发环境

①导入IOC容器需要的jar包

spring-beans-4.0.0.RELEASE.jar

spring-context-4.0.0.RELEASE.jar

spring-core-4.0.0.RELEASE.jar

spring-expression-4.0.0.RELEASE.jar

commons-logging\-1.1.3.jar

②创建Spring配置文件：Spring Bean Configuration File

4.IOC容器创建对象

①IOC容器本身对象创建时，会将配置文件中配置好的bean创建出来

②默认是单实例的，只创建bean的一个对象

③如果设置bean的scope属性为prototype，那么创建bean的对象就是多实例的，在获取的时候创建，每次获取对象都会创建新的

5.从IOC容器中获取对象

①根据bean的id获取

②根据bean的类型获取：要求容器中指定类型的bean是唯一的

6.bean的后置处理器

①在bean的 **初始化方法调用前后**执行操作的专门的对象

②自定义后置处理器：org.springframework.beans.factory.config.BeanPostProcessor

7.属性的装配

①手动装配

②自动装配

8.使用注解配置bean

①声明bean的注解

@Component 将当前类声明为IOC容器中的一个普通的组件

@Controller 将当前类声明为IOC容器中的一个控制器组件

@Service 将当前类声明为IOC容器中的业务逻辑层组件

@Repository 将当前类声明为IOC容器中的一个持久化层组件

Spring根据上述注解其实并不能分辨当前类是否真的是一个控制器或Dao，即使标记的类和注解不对应也没有语法错误。但在实际工作中，肯定要将专门的注解标记在对应的类上面。

②使用基于注解的bean的配置，需要额外导入一个jar包：spring-aop-4.0.0.RELEASE.jar

③需要设置自动扫描的包

④使用注解后，默认按照类名首字母小写作为id的值，也可以使用value属性指定id，value属性名也可以省略

<table style=""> 
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   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:49.94054696789536%"> 注解</td> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:49.94054696789536%"> id值</td> 
  </tr> 
  <tr> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:50%"> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#646464"><span style="font-size:14pt">@Component</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>public</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>class</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#d4d4d4">CommonComponent</span><span style="font-size:14pt">{ </span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt"><br> </span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">}</span></span> 
    </div> </td> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:50%"> <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#d4d4d4">commonComponent</span></span></td> 
  </tr> 
  <tr> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:50%"> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#646464"><span style="font-size:14pt">@Controller</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">(value=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt">"atguiguBookAction"</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">)</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>public</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>class</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">BookAction { </span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt"><br> </span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">}</span></span> 
    </div> </td> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:50%"> <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt">atguiguBookAction</span></span></td> 
  </tr> 
  <tr> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:50%"> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#646464"><span style="font-size:14pt">@Service</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">(</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt">"happyService"</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">)</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>public</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>class</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">BookService { </span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt"><br> </span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">}</span></span> 
    </div> </td> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:50%"> <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt">happyService</span></span></td> 
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⑤使用注解进行自动装配：@Autowired注解

\[1\]首先检测标记了@Autowired注解的属性的类型

\[2\]根据类型进行装配

\[3\]如果指定类型的bean不止一个，那么根据需要被装配的属性的属性名做id的值，查找bean

\[4\]如果根据id值还是没有找到bean，可以使用@Qualifier注解手动指定要装配的bean的id

\[5\]如果设置@Autowired注解的required属性为false，则不勉强装配属性，如果能够装配则装配，如果不能装配则不装配。

9.泛型依赖注入

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   <td style="width:99.52437574316289%"> <h1>3_IOC补充</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
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使用@Scope注解可将bean声明为多实例的

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   <td style="width:99.52437574316289%"> <h1>4_AOP</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
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1.概念：Aspect Oriented Programming 面向切面编程

2.作用：本质上来说是一种简化代码的方式

*  继承机制
 *  封装方法
 *  **动态代理**
 *  ……

3.情景举例

①数学计算器接口

②提供简单实现

③在简单实现的基础上让每一个计算方法都能够打印日志

④缺陷

\[1\]手动添加日志繁琐，重复

\[2\]统一修改不便

\[3\]对目标方法本来要实现的核心功能有干扰，使程序代码很臃肿，不易于开发维护

⑤使用动态代理实现

\[1\]创建一个类，让这个类能够提供一个目标对象的代理对象

\[2\]在代理对象中打印日志

4.AOP术语

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5.在Spring中使用AOP实现日志功能

①Spring中可以使用注解或XML文件配置的方式实现AOP。

②导入jar包

**com.springsource.net.sf.cglib -2.2.0.jar**

**  com.springsource.org.aopalliance-1.0.0 .jar**

**  com.springsource.org.aspectj.weaver-1.6.8 .RELEASE.jar**

commons-logging-1.1.3. jar

**spring-aop-4.0.0.RELEASE.jar**

**  spring-aspects-4.0.0.RELEASE.jar**

spring-beans-4.0.0.RELEASE.jar

spring-context-4.0.0.RELEASE.jar

spring-core-4.0.0.RELEASE.jar

spring-expression-4.0.0.RELEASE. jar

③开启基于注解的AOP功能

④声明一个切面类，并把这个切面类加入到IOC容器中

⑤在切面类中声明通知方法

\[1\]前置通知：@Before

\[2\]返回通知：@AfterReturning

\[3\]异常通知：@AfterThrowing

\[4\]后置通知：@After

\[5\]环绕通知：@Around

⑥被代理的对象也需要加入IOC容器

6.切入点表达式

①最详细

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    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt; background:#e8f2fe">execution(public int com.atguigu.aop.target.EazyImpl.add(int,int))</span></span> 
    </div> </td> 
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</table>

②最模糊

7.统一声明切入点表达式

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    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#646464"><span style="font-size:14pt">@Pointcut</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">(value=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt">"execution(public int com.atguigu.aop.target.EazyImpl.add(int,int))"</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">)</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>public</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F0055"><span style="font-size:14pt"><strong>void</strong></span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">myPointCut(){}</span></span> 
    </div> </td> 
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8.通知方法的细节

①在前置通知中获取目标方法的方法名和参数列表

\[1\]在通知方法中声明一个JoinPoint类型的形参

\[2\]调用JoinPoint对象的getSignature()方法获取目标方法的签名

\[3\]调用JoinPoint对象的getArgs()方法获取目标方法的实际参数列表

②在返回通知中获取方法的返回值

\[1\]在@AfterReturning注解中添加returning属性

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    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#646464"><span style="font-size:14pt; background:#e8f2fe">@AfterReturning</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#e8f2fe">(value=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt; background:#e8f2fe">"myPointCut()"</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#e8f2fe">,</span><span style="font-size:14pt; background:#d4d4d4">returning</span><span style="font-size:14pt; background:#e8f2fe">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt; background:#e8f2fe">"<strong><span style="color:rgb(255,70,53)">result</span></strong>"</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#e8f2fe">)</span></span> 
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\[2\]在返回通知的通知方法中声明一个形参，形参名和returning属性的值一致

③在异常通知中获取异常对象

\[1\]在@ AfterThrowing注解中添加throwing属性

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    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#646464"><span style="font-size:14pt; background:#e8f2fe">@AfterThrowing</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#e8f2fe">(value=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt; background:#e8f2fe">"myPointCut()"</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#e8f2fe">,throwing=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt; background:#e8f2fe">"<span style="color:rgb(255,70,53)"><strong>throwable</strong></span>"</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#e8f2fe">)</span></span> 
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\[2\]在异常通知的通知方法中声明一个形参，形参名和throwing属性值一致

9.真正放在IOC容器中的对象是代理对象，而并不是目标对象本身

10.切面的优先级

对于同一个代理对象，可以同时有多个切面共同对它进行代理。

可以通过@Order (value=50)注解来进行设置，值越小优先级越高

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   <td style="width:99.52437574316289%"> <h1>5_JdbcTemplate</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
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1.Spring提供的一个操作数据库的技术，是对Jdbc的封装。语法风格非常接近DBUtils。

2.配置环境

①导入jar包

\[1\]IOC容器需要的jar包

\[2\]MySQL驱动、C3P0jar包

\[3\]JdbcTemplate需要的jar包

②在IOC容器中配置数据源

③在IOC容器中配置JdbcTemplate对象的bean，并将数据源对象装配到JdbcTemplate对象中

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   <td style="width:99.52437574316289%"> <h1>6_声明式事务</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
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1.编程式事务

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    <div>
      //1.获取Connection对象 
    </div> 
    <div>
      Connection conn = JDBCUtils.getConnection(); 
    </div> 
    <div> 
     <br> 
    </div> 
    <div>
      try { 
    </div> 
    <div style="margin-left:40px">
      //2.开启事务：取消自动提交 
    </div> 
    <div style="margin-left:40px"> 
     <span style="color:rgb(255,0,0)"><strong>conn.setAutoCommit(false);</strong></span> 
    </div> 
    <div style="margin-left:40px"> 
     <br> 
    </div> 
    <div style="margin-left:40px">
      //3.执行数据库操作 
    </div> 
    <div style="margin-left:40px"> 
     <span style="color:rgb(118,0,216)"><strong>chain.doFilter(req,resp);</strong></span> 
    </div> 
    <div style="margin-left:40px"> 
     <br> 
    </div> 
    <div style="margin-left:40px">
      //4.提交事务 
    </div> 
    <div style="margin-left:40px"> 
     <span style="color:rgb(255,0,0)"><strong>conn.commit();</strong></span> 
    </div> 
    <div style="margin-left:40px"> 
     <br> 
    </div> 
    <div>
      }catch(Exception e) { 
    </div> 
    <div> 
     <br> 
    </div> 
    <div style="margin-left:40px">
      //5.回滚事务 
    </div> 
    <div style="margin-left:40px"> 
     <span style="color:rgb(255,0,0)"><strong>conn.rollBack();</strong></span> 
    </div> 
    <div> 
     <br> 
    </div> 
    <div>
      }finally{ 
    </div> 
    <div> 
     <br> 
    </div> 
    <div style="margin-left:40px">
      //6.释放资源 
    </div> 
    <div> 
     <br> 
    </div> 
    <div>
      } 
    </div> </td> 
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</table>

2.声明式事务

①基本原理：AOP

\[1\]前置通知：开启事务

\[2\]返回通知：提交事务

\[3\]异常通知：回滚事务

\[4\]后置通知：释放资源

②事务管理器

![Image 1][]

③导入jar包

\[1\]IOC容器需要的jar包

\[2\]AOP需要的jar包

\[3\]JdbcTemplate操作需要的jar包

\[5\]MySQL驱动和C3P0

④配置

\[1\]配置数据源

\[2\]配置JdbcTemplate，并装配数据源

\[3\]配置事务管理器，并装配数据源

\[4\]开启基于注解的声明式事务功能

如果事务管理器的bean的id正好是transaction-manager的默认值transactionManager，则可以省略

\[5\]在事务方法上加@Transactional注解

3.情景举例

①导入SQL文件：declaration\_transaction.sql

![Image 1][]

②数据库操作

\[1\]根据isbn的值查询书的价格

\[2\]根据isbn的值减少书的库存，假设每次都只买1本书

\[3\]根据用户名减少用户账户中的余额，减少的额度就是书的价格

4.事务属性的设置

①事务的传播行为

\[1\]一个事务运行在另一个有事务的方法中，那么当前方法是开启新事务还是在原有的事务中运行。

\[2\]设置事务方法在调用其他事务方法时，自己的事务如何传播给被调用的方法。

\[3\]设置方式

②事务的隔离级别

③事务根据什么异常不进行回滚

④事务的超时属性

\[1\]数据库事务在执行过程中，会占用数据库资源，所以如果某一个事务执行的时间太长，那么就会导致资源被长时间占用，影响其他事务执行。

\[2\]可以通过设置超时属性，将超时没有执行完的事务回滚。

⑤事务的只读属性

数据库会对事务进行优化，如果是一个查询操作，那么数据库可以有针对性的进行优化。我们可以通过设置事务属性，告诉数据库当前操作是一个只读操作，便于数据库进行优化。

5.基于XML的声明式事务

<table style=""> 
 <tbody> 
  <tr> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:99.88109393579072%"> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F5FBF"><span style="font-size:14pt">&lt;!-- 配置基于XML的声明式事务 --&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F5FBF"><span style="font-size:14pt">&lt;!-- 声明切入点表达式 --&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">aop:config</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">aop:pointcut</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">expression</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"execution(* com.atguigu.tx.component.BookService.doCash(String, String))"</em></span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">id</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"txPointCut"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">/&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F5FBF"><span style="font-size:14pt">&lt;!-- 将事务切入点和事务建议的配置关联起来 --&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">aop:advisor</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">advice-ref</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"bookTransaction"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">pointcut-ref</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"txPointCut"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">/&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">aop:config</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F5FBF"><span style="font-size:14pt">&lt;!-- 设置事务属性 --&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:advice</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">id</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"bookTransaction"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">transaction-manager</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"dataSourceTransactionManager"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:attributes</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:method</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">name</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"doCash"</em></span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">propagation</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"REQUIRED"</em></span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">isolation</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"READ_COMMITTED"</em></span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">read-only</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"false"</em></span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">no-rollback-for</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"java.lang.ArithmeticException"</em></span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">timeout</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"3"</em></span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px; color:#010101"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">/&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F5FBF"><span style="font-size:14pt">&lt;!-- 将某一类方法统一设置为只读 --&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:method</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">name</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"get*"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">read-only</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"true"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">/&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:method</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">name</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"find*"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">read-only</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"true"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">/&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:method</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">name</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"query*"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#7F007F"><span style="font-size:14pt">read-only</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">=</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#2A00FF"><span style="font-size:14pt"><em>"true"</em></span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">/&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:attributes</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">tx:advice</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

<table style="width:841px"> 
 <tbody> 
  <tr> 
   <td style="width:99.52437574316289%"> <h1>7_整合Hibernate</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
  </tr> 
 </tbody> 
</table>

1.整合目标

![Image 1][]

3.Spring为SessionFactory接口提供了一个可以被配置为bean的实现类：org.springframework.orm.hibernate4.LocalSessionFactoryBean

4.事务管理器：org.springframework.orm.hibernate4.HibernateTransactionManager

5.在Dao中获取Session对象

①factory .openSession()

开启新的会话，返回一个新创建的Session对象

②factory .getCurrentSession()

从当前线程上获取Session对象，保证多个数据库操作在同一个事务中

注意：在Spring和Hibernate整合环境下，当前方法必须运行在声明式事务中才能够通过getCurrentSession()获取到Session对象。

<table style="width:841px"> 
 <tbody> 
  <tr> 
   <td style="width:99.52437574316289%"> <h1>8_整合Struts2</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
  </tr> 
 </tbody> 
</table>

1.在Web应用中使用Spring

①创建IOC容器对象

②Web应用工作阶段：初始化阶段→请求响应阶段→卸载前清理

③在Web应用初始化阶段将IOC容器对象创建出来，并保存到application域中。

④在ServletContextListener监听器中执行如下操作

\[1\]创建IOC容器对象

\[2\]将IOC容器对象保存到application域中

2.整合Struts2

①导入jar包

\[1\]Spring需要的jar包

IOC容器需要的jar包

Web应用相关的jar包

\[2\]Struts2需要的jar包

\[3\]Struts2提供的一个用于整合Spring的插件jar包

<table style=""> 
 <tbody> 
  <tr> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:99.88109393579072%"> LibrarySupport\struts-2.3.15.3\lib</td> 
  </tr> 
  <tr> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:100%"> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt; background:#e8f2fe">struts2-spring-plugin-2.3.15.3.jar</span></span> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

②配置Spring提供的一个专门用于创建IOC容器对象的监听器

③导入Struts2自身的配置文件，配置核心Filter

④将Struts2的Action类设置为多实例方式创建

⑤Struts2整合Spring后，Action类的对象交给IOC容器创建，那么在class属性中，就可以使用Action类的bean的id

<table style="width:841px"> 
 <tbody> 
  <tr> 
   <td style="width:99.52437574316289%"> <h1>9_CRUD练习</h1> <strong>作者：</strong> 风离紫竹--tryzq521@126.com</td> 
  </tr> 
 </tbody> 
</table>

1.功能描述

\[1\]显示员工列表，要求显示员工列表时显示部门名称

\[2\]添加员工，在添加界面显示所有部门列表，供选择

\[3\]更新员工，在更新界面显示所有部门列表，供选择，并且初始状态下显示当前员工现在的部门

\[4\]删除员工

\[5\]以上所有增删改操作执行完成后都回到列表页面

2.项目结构

①实体类

Employee

Department

②组件

持久化层：HibernateDao/HibernateDaoImpl

Tips：在使用openSession()方式单独测试Dao方法时，update()和delete()方法需要工作在事务中才有效

业务逻辑层：EmployeeService/EmployeeServiceImpl

表示层：EmployeeAction

![Image 1][]

③页面

index.jsp：显示“前往员工列表”超链接

showEmpList.jsp：显示员工列表

addUI.jsp：显示添加员工信息的表单界面

editUI.jsp：显示编辑员工信息的表单界面

④配置文件

Spring配置文件

Hibernate配置文件：cfg/hbm

Struts2配置文件

web.xml配置文件

jdbc.properties属性文件

★配置文件可以专门创建一个Source Folder来保存，源码目录中的内容经过项目编译后会被保存到类路径下

⑤jar包

\[1\]MySQL和数据库连接池

\[2\]Spring

IOC容器

AOP

jdbc

web

\[3\]Hibernate

\[4\]Struts2：整合Spring时需要用到的插件

3.实现步骤

①创建数据库：ssh\_crud0917

②导入所需要的jar包

③使用Spring的IOC容器创建数据源对象

4.OpenSessionInViewFilter

作用：将Hibernate的Session的开启时间延长到JSP页面执行完成。

配置

<table style=""> 
 <tbody> 
  <tr> 
   <td style="border-style:solid; border-width:1px; border-color:rgb(211,211,211); padding:10px; margin:0px; width:100%"> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F5FBF"><span style="font-size:14pt">&lt;!-- 配置OpenSessionInViewFilter --&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-name</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">OpenSessionInView</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-name</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-class</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">org.springframework.orm.hibernate4.support.OpenSessionInViewFilter</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-class</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-mapping</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-name</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">OpenSessionInView</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-name</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">url-pattern</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">/*</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">url-pattern</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> 
    <div> 
     <span style="font-family:Consolas; font-size:18px"><span style="font-size:14pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&lt;/</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#3F7F7F"><span style="font-size:14pt">filter-mapping</span></span> 
     <span style="font-family:Consolas; font-size:18px; color:#008080"><span style="font-size:14pt">&gt;</span></span> 
    </div> </td> 
  </tr> 
 </tbody> 
</table>

5.配置使用二级缓存

①导入二级缓存jar包

hibernate-release-4.2.4.Final\\lib\\optional\\ehcache\\全部

②导入二级缓存自身的配置文件

hibernate-release-4.2.4.Final\\project\\etc\\ehcache.xml

③在Hibernate中开启二级缓存功能

④配置Department类开启二级缓存功能

⑤开启查询缓存功能

⑥让Query对象setCacheable(true)

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