SSH框架整合demo

Struts、Spring、Hibernate整合 一、创建web工程,搭建Struts框架开发环境: 这里只导入了项目中所需要的重要的jar包,以后根据业务要求继续导入相关的包。

  1. 步骤1::导入struts框架所需的jar包
  2. 步骤2:在web.xml中配置struts2.0主过滤器
  3. 步骤3:导入struts.xml配置文件
SSH框架整合demo
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web.xml
struts2 org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter struts2 /* index.jsp

struts.xml

二、搭建Hibernate开发环境: 创建数据库: SSH框架整合demo
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这里只导入了项目中所需要的重要的jar包,以后根据业务要求继续导入相关的包。
工程目录: SSH框架整合demo
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hibernate.cfg.xml
com.mysql.jdbc.Driverrootrootjdbc:mysql://localhost:3306/xbmuoaorg.hibernate.dialect.MySQLDialectupdatetruetrue

Person.hbm.xml(暂时性先写个映射文件的模板)

三、搭建Spring开发环境: 这里只导入了项目中所需要的重要的jar包,以后根据业务要求继续导入相关的包。 SSH框架整合demo
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applicationContext.xml

以上已经将Struts、Spring、Hibernate开发所需要的jar包及其配置文件已经配置到web工程中了。 接下来,我们两两整合在一起。
四、Spring与Hibernate整合: 让Spring来管理SessionFactory和事务。 工程目录: SSH框架整合demo
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applicationContext.xml


jdbc.properties
jdbcUrl= jdbc:mysql:///xbmuoa driverClass = com.mysql.jdbc.Driver username = root password = root

SpringTest.java
package cn.xbmu.oa.test; import org.hibernate.SessionFactory; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class SpringTest { private ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml"); //测试SessionFactory @Test public void testSessionFactory(){ SessionFactory sessionFactory = (SessionFactory) ac.getBean("sessionFactory"); System.out.println(sessionFactory); } }

使用Junit测试,结果: SSH框架整合demo
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启动tomcat没有报错,说明以上环境的搭建都完全正确,并进行测试,也没有报错。 User.java
package cn.xbmu.oa.domain; public class User { private Long id; private String name; public Long getId() { return id; } public void setId(Long id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } }

User.hbm.xml

记得在hibernate.cfg.xml文件中引入映射文件。
TestService.java
package cn.xbmu.oa.test; import javax.annotation.Resource; import org.hibernate.SessionFactory; import org.hibernate.classic.Session; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import cn.xbmu.oa.domain.User; @Service("testService") public class TestService { @Resource private SessionFactory sessionFactory; @Transactional public void saveTwoUser(){ Session currentSession = sessionFactory.getCurrentSession(); currentSession.save(new User()); int i = 1 / 0; //这里会抛出异常 currentSession.save(new User()); } }

SpringTest.java
package cn.xbmu.oa.test; import org.hibernate.SessionFactory; import org.junit.Test; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class SpringTest { private ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml"); //测试SessionFactory @Test public void testSessionFactory(){ SessionFactory sessionFactory = (SessionFactory) ac.getBean("sessionFactory"); System.out.println(sessionFactory); } //测试事务 @Test public void testTransaction(){ TestService testService = (TestService) ac.getBean("testService"); testService.saveTwoUser(); } }

测试事务,报错,因为在 int i = 1 / 0这里发生了异常。 SSH框架整合demo
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查询数据库xbmuoa中的表,没有数据 SSH框架整合demo
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我们注释掉int i = 1 / 0; 这句代码,重新测试,成功。 SSH框架整合demo
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查询user表,里面已经有了保存的数据 SSH框架整合demo
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我们,继续打开抛异常的语句,再测试;再注释抛异常的代码,再测试。查看表中的数据,发现了事务回滚了。 SSH框架整合demo
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到此为止,我们顺利的将Spring与Hibernate整合在一起了。并测试了SessionFactory与事务,都正常。 五、Spring与Struts整合: 为了说明白,我们在整合之前写个Action,整合之后写个Action,看看他们之间的区别: 整合之前:
TestAction.java
package cn.xbmu.oa.test; import com.opensymphony.xwork2.ActionSupport; public class TestAction extends ActionSupport { @Override public String execute() throws Exception { System.out.println("---------->TestAction execute()"); return "success"; } }

struts.xml
/test.jsp

test.jsp
Struts2.0添加成功

运行: SSH框架整合demo
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SSH框架整合demo
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整合之后:
导入jar包,已经完成了整合 SSH框架整合demo
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TestAction.java
package cn.xbmu.oa.test; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Controller; import com.opensymphony.xwork2.ActionSupport; @Controller @Scope("prototype") public class TestAction extends ActionSupport { @Override public String execute() throws Exception { System.out.println("---------->TestAction execute()"); return "success"; } }

struts.xml
【SSH框架整合demo】/test.jsp

在浏览器上运行:http://localhost:8080/xbmuoa/test.action 发现,在控制台上报错,信息如下:
严重: ********** FATAL ERROR STARTING UP STRUTS-SPRING INTEGRATION ********** Looks like the Spring listener was not configured for your web app! Nothing will work until WebApplicationContextUtils returns a valid ApplicationContext. You might need to add the following to web.xml: org.springframework.web.context.ContextLoaderListener 四月 03, 2016 9:48:27 下午 com.opensymphony.xwork2.util.logging.commons.CommonsLogger error 严重: Dispatcher initialization failed java.lang.NullPointerException at com.opensymphony.xwork2.spring.SpringObjectFactory.getClassInstance(SpringObjectFactory.java:209) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyResultType(XmlConfigurationProvider.java:519) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addResultTypes(XmlConfigurationProvider.java:490) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:446) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:264) at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418) at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69) at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:105) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4854) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5542) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1245) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1895) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) 四月 03, 2016 9:48:27 下午 org.apache.catalina.core.StandardContext filterStart 严重: Exception starting filter struts2 Class: com.opensymphony.xwork2.spring.SpringObjectFactory File: SpringObjectFactory.java Method: getClassInstance Line: 209 - com/opensymphony/xwork2/spring/SpringObjectFactory.java:209:-1 at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:431) at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69) at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:279) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:260) at org.apache.catalina.core.ApplicationFilterConfig.(ApplicationFilterConfig.java:105) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4854) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5542) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:649) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1245) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1895) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) Caused by: java.lang.NullPointerException at com.opensymphony.xwork2.spring.SpringObjectFactory.getClassInstance(SpringObjectFactory.java:209) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyResultType(XmlConfigurationProvider.java:519) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addResultTypes(XmlConfigurationProvider.java:490) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:446) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:264) at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418) ... 18 more

意思就是,没有和web工程整合,没有一个全局的工厂容器对象。 在web.xml中配置信息如下:
web.xml
org.springframework.web.context.ContextLoaderListener contextConfigLocationclasspath:applicationContext*.xml struts2 org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter struts2 /* index.jsp

TestAction.java
package cn.xbmu.oa.test; import javax.annotation.Resource; import org.springframework.context.annotation.Scope; import org.springframework.stereotype.Controller; import com.opensymphony.xwork2.ActionSupport; @Controller @Scope("prototype") public class TestAction extends ActionSupport { @Resource private TestService testService; @Override public String execute() throws Exception { System.out.println("---------->TestAction execute()"); testService.saveTwoUser(); return "success"; } }

在浏览器中运行,报错,是因为在 int i = 1 / 0出抛出了异常 SSH框架整合demo
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注释掉这句抛异常的语句,继续运行,成功。 SSH框架整合demo
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SSH框架整合demo
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以上关于SSH的整合已经成功介绍完了,所需代码下载地址: http://download.csdn.net/detail/btt2013/9480447


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