Eclipse搭建SSH（Struts2+Spring3+Hibernate3）框架项目教程及增删改查经验总结

前言

确实好久没有写过了，一直以来把写博文当作自己学习的总结，当作做过的笔记，随时都可以拿出来看看。不过最近习惯了用OneNote和印象笔记，所以就很少在论坛写博文。但是偶尔看到几篇被转载了，也小小的虚荣了下。这种虚荣大神们已经习以为常，他们是不能理解的。

好吧，转入正题。

参加工作从事Java Web开发将近两年，也没有完整的搭建出一个SSH框架的项目，说出来确实有点不好意思，并且前一段一个朋友问我搭建过SSH框架没，我都没有好意思说没有。所以才有了搭建一个SSH框架项目的想法，因此有了今天的这篇博文。

这篇博文的目的

1. 尝试搭建一个完整的SSH框架项目。
2. 给以后的自己，也给别人一个参考。

读博文前应该注意：

1. 本文提纲：本文通过一个用户注册的实例讲解SSH的整合。创建Struts项目，整合Hibernate，整合Spring。最后总结如何熟练创建SSH项目。
2. 仅是创建SSH项目，对于其他的扩展例如Struts的国际化，Hibernate的缓存优化，Spring的AOP等，本博文涉及不到。想学习更多的东西请搜索其他博文。
3. 本项目的环境：Windows 8-64位，Eclipse Indigo Service Release 2，Tomcat 7.0，Struts-2.2.3.1，spring-framework-3.2.3.RELEASE（本来使用Spring3.1，但是整合Spring的时候启动服务器报错。错误信息竟然是Spring框架中的方法参数空指针。。。对比Spring3.2版本后，发现在3.2种增加了判断此参数是否为空，所以最终改为用Spring3.2.3的版本。详细错误信息见本目录下5），hibernate-release-4.0.0.CR6（整合Spring3时，可以启动服务器，但是点击注册后调用UserDao类的getHibernateTemplate().save(Obj)时浏览器页面报错，但是服务器没有反应。提示org.hibernate.SessionFactory中有没有openSession(Interceptor interceptor) 
   方法，但是Spring框架中的代码Session session = (entityInterceptor != null ? sessionFactory.openSession(entityInterceptor) : sessionFactory.openSession())显示用到该方法，虽然调用这段代码的方法传进来的entityInterceptor就为null。。。网上搜索无果，所以最终在整合Spring的时候使用Hibernate-3.6.10.Final。详细错误信息见本目录下6），MySQL 5.5.28下的project数据库。
4. user表的创建脚本。

    create table user(
    userId int auto_increment,
    userName varchar(16) not null,
    password varchar(16) not null,
    gender int not null,
    primary key(userId)
    );

5. 使用Spring3.1时出现错误的详细信息。

    SEVERE: Context initialization failed
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1445)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:459)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:381)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
        at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
        at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
    Caused by: java.lang.NullPointerException
        at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.scanPackages(LocalSessionFactoryBuilder.java:138)
        at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:294)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1504)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1442)
        ... 20 more
   
    七月 13, 2013 6:48:44 下午 org.apache.catalina.core.StandardContext listenerStart
    SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NullPointerException
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1445)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:522)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:459)
        at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
        at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:567)
        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:913)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:464)
        at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:381)
        at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:283)
        at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
        at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
        at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
        at java.util.concurrent.FutureTask.run(FutureTask.java:166)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
    Caused by: java.lang.NullPointerException
        at org.springframework.orm.hibernate4.LocalSessionFactoryBuilder.scanPackages(LocalSessionFactoryBuilder.java:138)
        at org.springframework.orm.hibernate4.LocalSessionFactoryBean.afterPropertiesSet(LocalSessionFactoryBean.java:294)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1504)
        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1442)
        ... 20 more

6. 整合Spring时候，使用Hibernate时点击注册报错信息。

    java.lang.reflect.InvocationTargetException
        sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        java.lang.reflect.Method.invoke(Method.java:601)
        com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)
        com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)
        com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
        org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:270)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
        org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:498)
        org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
        org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
   
    root cause
   
    java.lang.NoSuchMethodError: org.hibernate.SessionFactory.openSession()Lorg/hibernate/classic/Session;
        org.springframework.orm.hibernate3.SessionFactoryUtils.doGetSession(SessionFactoryUtils.java:323)
        org.springframework.orm.hibernate3.SessionFactoryUtils.getSession(SessionFactoryUtils.java:235)
        org.springframework.orm.hibernate3.HibernateTemplate.getSession(HibernateTemplate.java:457)
        org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:392)
        org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
        org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:683)
        com.ynwi.ssh.daoImpl.UserDao.saveObject(UserDao.java:12)
        com.ynwi.ssh.serviceImpl.UserManagerImpl.regUser(UserManagerImpl.java:23)
        com.ynwi.ssh.action.RegisterAction.execute(RegisterAction.java:29)
        sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        java.lang.reflect.Method.invoke(Method.java:601)
        com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:452)
        com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:291)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:254)
        com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)
        org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:270)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
        com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)
        com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)
        org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)
        org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:498)
        org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
        org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

   
   

创建Struts项目

创建工程

1. 在Eclipse中创建一个Dynamic Web Project，本文项目名称为SSHProject。
2. 把Struts内apps文件夹下的struts2-blank war包用压缩工具解压，然后把WEB-INF/lib内的jar包和WEB-INF下的web.xml文件分别复制到SSHProject项目下的WEB-INF/lib内和WEB-INF下。
3. 在src目录下创建相应package。
4. 在WebContent下创建Register.jsp文件，并分别创建注册成功和注册失败的Success.jsp和Fail.jsp。
   

操作完成后的结构如图所示：

编写代码

• web.xml的内容。

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

     <display-name>SSH Project</display-name>

     <filter>
         <filter-name>SSH</filter-name>
         <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
     </filter>

     <filter-mapping>
         <filter-name>SSH</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>

     <welcome-file-list>
         <welcome-file>index.html</welcome-file>
     </welcome-file-list>

 </web-app>

• Register.jsp的内容。

 <%@ page language="java" contentType="text/html; charset=UTF-8"
     pageEncoding="UTF-8"%>
 <%@ taglib prefix="s" uri="/struts-tags"%>
 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 <html>
 <head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>User Register Page</title>
 </head>
 <body>

     <s:form action="register">
         <s:textfield name="user.username" label="用户名"></s:textfield>
         <s:password name="user.password" label="密码"></s:password>
         <s:select list="#{'1':'男','0':'女'}" listKey="key" listValue="value"
             name="user.gender" label="性别" value="1"></s:select>
         <s:submit value="注册"></s:submit>
     </s:form>

 </body>
 </html>

• 用户表单类UserForm.java的内容。

 package com.ynwi.ssh.beans;

 public class UserForm {

     private String username;
     private String password;
     private int gender;

     public String getUsername() {
         return username;
     }

     public void setUsername(String username) {
         this.username = username;
     }

     public String getPassword() {
         return password;
     }

     public void setPassword(String password) {
         this.password = password;
     }

     public int getGender() {
         return gender;
     }

     public void setGender(int gender) {
         this.gender = gender;
     }

 }

• 注册Action类RegisterAction.java的内容。

 package com.ynwi.ssh.action;

 import com.opensymphony.xwork2.ActionSupport;
 import com.ynwi.ssh.beans.UserForm;
 import com.ynwi.ssh.service.UserManager;
 import com.ynwi.ssh.serviceImpl.UserManagerImpl;

 public class RegisterAction extends ActionSupport {

     private static final long serialVersionUID = 1L;

     private UserForm user;

     private UserManager userManager;

     public UserForm getUser() {
         return user;
     }

     public void setUser(UserForm user) {
         this.user = user;
     }

     public UserManager getUserManager() {
         return userManager;
     }

     public void setUserManager(UserManager userManager) {
         this.userManager = userManager;
     }

     public String execute() {
         try {
             this.setUserManager(new UserManagerImpl());
             userManager.regUser(user);
             return SUCCESS;

         } catch (Exception e) {
             e.printStackTrace();
             return ERROR;
         }
     }

 }

• 验证文件RegisterAction-validation.xml的内容。该xml文件为RegisterAction的验证文件，命名格式固定，为< ActionName >-validation.xml。

 <?xml version="1.0" encoding="GBK"?>
 <!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"
     "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">

 <validators>
     <!-- 添加对用户名的校验 -->
     <field name="user.username">
         <field-validator type="requiredstring">
             <param name="trim">true</param>
             <message>用户名不能为空</message>
         </field-validator>
         <field-validator type="regex">
             <param name="expression"><![CDATA[(\w{6,16})]]></param>
             <message>用户名输入不合法，必须为长度在6~16中间的数字或字母</message>
         </field-validator>
     </field>

     <!-- 添加对密码的校验 -->
     <field name="user.password">
         <field-validator type="requiredstring">
             <param name="trim">true</param>
             <message>密码不能为空</message>
         </field-validator>
         <field-validator type="regex">
             <param name="expression"><![CDATA[(\w{6,16})]]></param>
             <message>密码输入不合法，必须为长度在6~16之间的数字或者字母</message>
         </field-validator>
     </field>
 </validators>

• 业务逻辑接口UserManaer.java的内容。

 package com.ynwi.ssh.service;

 import com.ynwi.ssh.beans.UserForm;

 public interface UserManager {

     public void regUser(UserForm user);

 }

• 业务逻辑实现类UserManagerImpl.java的内容

 package com.ynwi.ssh.serviceImpl;

 import com.ynwi.ssh.beans.UserForm;
 import com.ynwi.ssh.service.UserManager;

 public class UserManagerImpl implements UserManager {

     @Override
     public void regUser(UserForm user) {

     }

 }

• 配置文件struts.xml的内容。

 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE struts PUBLIC
     "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
     "http://struts.apache.org/dtds/struts-2.0.dtd">

 <struts>

     <include file="struts-default.xml" />
     <package name="ynwi" extends="struts-default">
         <action name="register" class="com.ynwi.ssh.action.RegisterAction">
             <result name="input">/Register.jsp</result>
             <result name="success">/Success.jsp</result>
             <result name="error">/Fail.jsp</result>
         </action>
     </package>

 </struts>

Success.jsp和Fail.jsp仅仅只是一句提示注册成功和失败的话，这里就不在列出。

运行效果

• 输入访问Register.jsp的地址http://localhost:9090/SSHProject/Register.jsp后。

• 输入用户名和密码不合法时。

• 注册成功时。

在Struts基础上整合Hibernate

整合Hibernate

1. 将Hibernate内的lib/required下的jar包和lib/jpa下的jar包复制到SSHProject项目的lib目录下。
2. 在上面Struts项目的基础上添加com.ynwi.ssh.dao和com.ynwi.ssh.daoImpl包。分别创建BaseDao接口和UserDao类。
   
3. 在数据库中创建对应的表user来写入要注册的用户。创建表的脚本见前言说明部分。
4. 创建user表的Hibernate映射文件。因为这里要创建user表对应的POJO类，所以我这里把之前com.ynwi.ssh.beans包改成com.ynwi.ssh.forms包，用来存放页面传过来的表单数据，新创建com.ynwi.ssh.beans包，用来创建POJO对象来对应数据库中的表。路径：POJO类同目录。
   
5. 建立Hibernate配置文件。路径：src目录下。
   
6. 编写Session工厂类。整合Spring后，数据源的创建和SessionFactory的创建都交给Spring去管理，就无需这个工厂类了，所以这里我临时创建在daoImpl包里面。
   
7. 修改业务逻辑实现类。

操作完成后的结构如图所示：

编写代码

• 接口类BaseDao.java的内容。注意：接口里的两个get/set方法是为了让实现类覆盖。这样使用BaseDao dao = new UserDao()的时候，dao实体中有这两个方法。
  

 package com.ynwi.ssh.dao;

 import org.hibernate.HibernateException;
 import org.hibernate.Session;

 public interface BaseDao {

     public void saveObject(Object obj) throws HibernateException;

     public Session getSession();

     public void setSession(Session session);
 }

• 实现类UserDao.java的内容。

 package com.ynwi.ssh.daoImpl;

 import org.hibernate.HibernateException;
 import org.hibernate.Session;

 import com.ynwi.ssh.dao.BaseDao;

 public class UserDao implements BaseDao {

     private Session session;

     @Override
     public Session getSession() {
         return session;
     }

     @Override
     public void setSession(Session session) {
         this.session = session;
     }

     @Override
     public void saveObject(Object obj) throws HibernateException {
         session.save(obj);
     }

 }

• 表user的POJO类User.java的内容，因为跟UserForm.java内容差不多，所以不再列出。这个比UserForm.java多一个userId属性，因为在表user里面有userId的column。在POJO类里需要跟这个column有映射。

• POJO类User.java的Hibernate映射文件User.hbm.xml的内容。代码<generator class="native"></generator>说明将根据本地数据库的设置来创建userId，如MySQL中将表user的userId设置为自动增长，则在保存记录是，userId将自动增长。对于需要在程序中指定主键的值，则将generator的class属性设置为assigned。

 <?xml version="1.0" encoding='UTF-8'?>
 <!DOCTYPE hibernate-mapping PUBLIC
                             "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
                             "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >

 <hibernate-mapping package="com.ynwi.ssh.beans">
     <class name="User" table="user">
         <id name="userId" column="userId">
             <generator class="native"></generator>
         </id>
         <property name="username" column="userName" type="java.lang.String"
             not-null="true" length="16"></property>
         <property name="password" column="password" type="java.lang.String"
             not-null="true" length="16" />
         <property name="gender" column="gender" type="java.lang.Integer" length="1" />
     </class>
 </hibernate-mapping>

• Hibernate配置文件Hibernate.cfg.xml的内容。

 <?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>
     <!-- Database connection settings -->
     <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
     <property name="connection.url">jdbc:mysql://localhost:3306/project</property>
     <property name="connection.username">root</property>
     <property name="connection.password">root</property>

     <!-- JDBC connection pool (use the built-in) -->
     <!-- <property name="connection.pool_size">1</property> -->

     <!-- SQL dialect -->
     <property name="dialect">org.hibernate.dialect.MySQLDialect</property>

     <!-- Enable Hibernate's automatic session context management -->
     <!-- <property name="current_session_context_class">thread</property> -->

     <!-- Disable the second-level cache  -->
     <!-- <property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property> -->

     <!-- Echo all executed SQL to stdout -->
     <property name="show_sql">true</property>

     <!-- Drop and re-create the database schema on startup -->
     <!-- <property name="hbm2ddl.auto">update</property> -->
     <mapping resource="com/ynwi/ssh/beans/User.hbm.xml"/>
   </session-factory>
 </hibernate-configuration>

• 工厂类SessionFactory的内容。（这是使用Hibernate4时候的SessionFactory，Hibernate3时候sessionFactory的创建估计会不一样，请自行查阅。）

 package com.ynwi.ssh.daoImpl;

 import org.hibernate.HibernateException;
 import org.hibernate.Session;
 import org.hibernate.SessionFactory;
 import org.hibernate.cfg.Configuration;
 import org.hibernate.service.ServiceRegistry;
 import org.hibernate.service.ServiceRegistryBuilder;

 public class HibernateSessionFactory {

     private static final String CFG_FILE_LOCATION = "/Hibernate.cfg.xml";

     private static final ThreadLocal<Session> threadLocal = new ThreadLocal<Session>();

     private static final Configuration cfg = new Configuration()
             .configure(CFG_FILE_LOCATION);

     private static ServiceRegistryBuilder builder = new ServiceRegistryBuilder()
             .applySettings(cfg.getProperties());

     private static ServiceRegistry registry;

     private static SessionFactory sessionFactory;

     public static Session currentSession() throws HibernateException {
         Session session = threadLocal.get();

         if (session == null || session.isOpen() == false) {

             if (sessionFactory == null) {
                 try {
                     registry = builder.buildServiceRegistry();
                     sessionFactory = cfg.buildSessionFactory(registry);
                 } catch (Exception e) {
                     e.printStackTrace();
                 }
             }

             session = sessionFactory.openSession();
             threadLocal.set(session);

         }

         return session;
     }

     public static void closeSession() throws HibernateException {
         Session session = threadLocal.get();
         threadLocal.set(null);
         if (session != null) {
             session.close();
         }
     }

 }

• 修改后的业务逻辑实现类的内容。

 package com.ynwi.ssh.serviceImpl;

 import org.hibernate.HibernateException;
 import org.hibernate.Session;
 import org.hibernate.Transaction;

 import com.ynwi.ssh.beans.User;
 import com.ynwi.ssh.dao.BaseDao;
 import com.ynwi.ssh.daoImpl.HibernateSessionFactory;
 import com.ynwi.ssh.daoImpl.UserDao;
 import com.ynwi.ssh.forms.UserForm;
 import com.ynwi.ssh.service.UserManager;

 public class UserManagerImpl implements UserManager {

     private BaseDao dao;

     private Session session;

     public UserManagerImpl() {
         dao = new UserDao();
     }

     @Override
     public void regUser(UserForm userForm) throws HibernateException {
         session = HibernateSessionFactory.currentSession();
         dao.setSession(session);
         // 获取事务
         Transaction ts = session.beginTransaction();
         // 构造User对象
         User user = new User();
         user.setUsername(userForm.getUsername());
         user.setPassword(userForm.getPassword());
         user.setGender(userForm.getGender());
         // 保存User对象
         dao.saveObject(user);
         // 提交事务
         ts.commit();
         // 关闭Session
         HibernateSessionFactory.closeSession();
     }

 }

运行效果

• 输入访问Register.jsp的地址http://localhost:9090/SSHProject/Register.jsp后。

• 点击注册前后数据库里面的数据。

在Struts + Hibernate项目中整合Spring

整合Spring

1. 将Spring内libs目录下包含所有的jar包（不需要复制结尾为sources和javadoc的jar包）到SSHProject项目的lib目录下。（文章后面有spring的直接下载路径）
   
2. 编写Spring的配置文件applicationContext.xml。路径：src目录下，需要在web.xml配置context-param指定路径，或者把该文件放在WEB-INF下，跟web.xml同目录。这里由于Spring配置数据源的需要，需要把Hibernate内lib/optional/c3p0下的c3p0-0.9.1.jar复制到lib不目下。
   
3. 修改BaseDao和UserDao。在引入Spring后，需要用Spring进行统一的事务管理，数据源和sessionFactory都交给Spring去生成，因此接口类和实现类BaseDao和UserDao都需要做相应的修改。Spring提供了HibernateDaoSupport类来完成对数据的操作，因此UserDao在实现BaseDao的同时还需要继承HibernateDaoSupport类。并将先前session的操作修改成HibernateTemplate（可通过getHibernateTemplate（）方法来获得）的操作。
   
4. 修改业务逻辑实现类。在没有加入Spring之前，业务逻辑实现类的Session的获得，dao的实例化，以及事务的管理都是该类执行管理的。加入Spring后，这些都交给Spring去管理。该类的dao的实例化由Spring注入。
   
5. 修改用户注册的RegisterAction类。同样，RegisterAction类中的userManager的实例化也由Spring注入。
   
6. 删除Hibernate的配置文件Hibernate.cfg.xml和工厂类HibernateSesseionFactory类。他们的工作已经交给Spring去做，已经不再有用。
   
7. 修改web.xml，加载Spring。要想启动时加载Spring的配置文件，需要在web.xml中配置对应的监听器（listenser），并制定Spring的配置文件。
   
8. 修改Struts的配置文件struts.xml。把原来指定的名为register的action的class由原来的路径变为applicationContext.xml文件中该Action的id。
   

操作完成后的结构如图所示：

编写代码

• Spring的配置文件applicationContext.xml的内容。

 <?xml version="1.0" encoding="UTF-8"?>
 <beans xmlns="http://www.springframework.org/schema/beans"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://www.springframework.org/schema/beans
            http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">

     <!-- 定义数据源的信息 -->
     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
         destroy-method="close">
         <property name="driverClass">
             <value>com.mysql.jdbc.Driver</value>
         </property>
         <property name="jdbcUrl">
             <value>jdbc:mysql://localhost/project</value>
         </property>
         <property name="user">
             <value>root</value>
         </property>
         <property name="password">
             <value>root</value>
         </property>
         <property name="maxPoolSize">
             <value>80</value>
         </property>
         <property name="minPoolSize">
             <value>1</value>
         </property>
         <property name="initialPoolSize">
             <value>1</value>
         </property>
         <property name="maxIdleTime">
             <value>20</value>
         </property>
     </bean>

     <!--定义Hibernate的SessionFactory -->
     <!-- SessionFactory使用的数据源为上面的数据源 -->
     <!-- 指定了Hibernate的映射文件和配置信息 -->
     <bean id="sessionFactory"
         class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
         <property name="dataSource">
             <ref local="dataSource" />
         </property>
         <property name="mappingResources">
             <list>
                 <value>com/ynwi/ssh/beans/User.hbm.xml</value>
             </list>
         </property>
         <property name="hibernateProperties">
             <props>
                 <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                 <prop key="show_sql">true</prop>
                 <prop key="hibernate.jdbc.batch_size">20</prop>
             </props>
         </property>
     </bean>

     <bean id="transactionManager"
         class="org.springframework.orm.hibernate3.HibernateTransactionManager">
         <property name="sessionFactory" ref="sessionFactory" />
     </bean>

     <bean id="baseDao" class="com.ynwi.ssh.daoImpl.UserDao">
         <property name="sessionFactory">
             <ref bean="sessionFactory" />
         </property>
     </bean>

     <!--用户注册业务逻辑类 -->
     <bean id="userManager" class="com.ynwi.ssh.serviceImpl.UserManagerImpl">
         <property name="dao">
             <ref bean="baseDao" />
         </property>
     </bean>

     <!-- 用户注册的Action -->
     <bean id="regAction" class="com.ynwi.ssh.action.RegisterAction">
         <property name="userManager">
             <ref bean="userManager" />
         </property>
     </bean>

     <!-- more bean definitions go here -->

 </beans>

• 修改后的接口类Dao和实现类UserDao的内容。

BaseDao.java

 package com.ynwi.ssh.dao;

 import org.hibernate.HibernateException;

 public interface BaseDao {

     public void saveObject(Object obj) throws HibernateException;

 }

UserDao.java

 package com.ynwi.ssh.daoImpl;

 import org.hibernate.HibernateException;
 import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

 import com.ynwi.ssh.dao.BaseDao;

 public class UserDao extends HibernateDaoSupport implements BaseDao {

     @Override
     public void saveObject(Object obj) throws HibernateException {
         getHibernateTemplate().save(obj);
     }

 }

• 修改后的业务逻辑实现类UserManagerImpl的内容。

 package com.ynwi.ssh.serviceImpl;

 import org.hibernate.HibernateException;
 import org.springframework.beans.BeanUtils;

 import com.ynwi.ssh.beans.User;
 import com.ynwi.ssh.dao.BaseDao;
 import com.ynwi.ssh.forms.UserForm;
 import com.ynwi.ssh.service.UserManager;

 public class UserManagerImpl implements UserManager {

     private BaseDao dao;

     public void setDao(BaseDao dao) {
         this.dao = dao;
     }

     @Override
     public void regUser(UserForm userForm) throws HibernateException {
         User user = new User();
         BeanUtils.copyProperties(userForm, user);
         dao.saveObject(user);
     }

 }

• 修改后的用户注册Action类RegisterAction的内容。

 package com.ynwi.ssh.action;

 import com.opensymphony.xwork2.ActionSupport;
 import com.ynwi.ssh.forms.UserForm;
 import com.ynwi.ssh.service.UserManager;

 public class RegisterAction extends ActionSupport {

     private static final long serialVersionUID = 1L;

     private UserForm user;

     private UserManager userManager;

     public UserForm getUser() {
         return user;
     }

     public void setUser(UserForm user) {
         this.user = user;
     }

     public void setUserManager(UserManager userManager) {
         this.userManager = userManager;
     }

     public String execute() {
         try {
             userManager.regUser(user);
             return SUCCESS;

         } catch (Exception e) {
             e.printStackTrace();
             return ERROR;
         }
     }

 }

• 修改后的web.xml的内容。

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

     <display-name>SSH Project</display-name>

     <filter>
         <filter-name>SSH</filter-name>
         <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
     </filter>

     <filter-mapping>
         <filter-name>SSH</filter-name>
         <url-pattern>/*</url-pattern>
     </filter-mapping>

     <listener>
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>

     <welcome-file-list>
         <welcome-file>index.html</welcome-file>
     </welcome-file-list>

 </web-app>

• 修改后的Struts配置文件struts.xml的内容。

 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE struts PUBLIC
     "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
     "http://struts.apache.org/dtds/struts-2.0.dtd">

 <struts>

     <include file="struts-default.xml" />
     <package name="ynwi" extends="struts-default">
         <action name="register" class="regAction">
             <result name="input">/Register.jsp</result>
             <result name="success">/Success.jsp</result>
             <result name="error">/Fail.jsp</result>
         </action>
     </package>

 </struts>

运行结果

• 输入访问Register.jsp的地址http://localhost:9090/SSHProject/Register.jsp后。

• 点击注册前后数据库里面的数据。

总结

本来想创建Struts2 + Spring3 + Hibernate4的项目，结果行动之后才发现版本之间不兼容的现象挺严重（我自己是这么认为的，如果有大神看出来是我开发中出的问题导致麻烦告知下），不得不把Hibernate4换成Hibernate3。因为中间换框架，所以导致此博文中整合Hibernate部分是否会报错，不过最终的项目是可以执行的。我会把项目打包上传到csdn资源上。可以点击这里下载。

如何快速开发SSH框架项目

1. 创建Dynamic Web Project并且导入jar包。
   
2. 我习惯上把classes文件夹由build文件夹内转移到WEB-INF下。在项目上右键Build Path——〉Configure Build Path。设置Default output folder。
3. 在WEB_INF下面创建web.xml并配置Struts的Filter和Spring的Listener。
4. 在WEB-INF下面创建applicationContext.xml并配置数据源，sessionFactory，Transaction以及各Beans信息。
5. 在src目录下创建struts.xml用来配置action信息，模板可以从Struts空项目里面拿。这里的action对应的class应该为applicationContext.xml内对应的class的bean的id。

该文章转自：http://blog.csdn.net/yeohcooller/article/details/9316923

SPRING官方网站改版后，下载spring非常麻烦，下给出官方直接下载路径:

http://repo.springsource.org/libs-release-local/org/springframework/spring/

Spring Framework 4.0.0下载

http://repo.springsource.org/libs-release-local/org/springframework/spring/4.0.0.RELEASE/spring-framework-4.0.0.RELEASE-dist.zip

spring 3.2.x（Spring Framework 3.2.6）下载：

http://repo.springsource.org/libs-release-local/org/springframework/spring/3.2.4.RELEASE/spring-framework-3.2.4.RELEASE-dist.zip

http://repo.springsource.org/libs-release-local/org/springframework/spring/3.2.5.RELEASE/spring-framework-3.2.5.RELEASE-dist.zip

http://repo.springsource.org/libs-release-local/org/springframework/spring/3.2.6.RELEASE/spring-framework-3.2.6.RELEASE-dist.zip

在此基础上加入自己的体会

1、配置struts时，主要是jsp和action的操作控制，根据struts.xml里的配置，决定action转向哪个页面

2、整合Hibernate时，我第一次用的是最新的5.x，里边少一个类org.hibernate.service.ServiceRegistry，然后下载来一个4.x版本的；Hibernate.cfg.xml主要时数据库的配置（<mapping resource="com/beans/User.hbm.xml"/>，当时我写成<mapping resource="com.beans.User.hbm.xml"/>了，其实是写路径的），另外就是实体类的映射，例如：User.hbm.xml;最后是工具类HibernateSessionFactory的配置.

3、在整合spring3.x时，首先出现：找不到这个类“org.apache.commons.logging.LogFactory”，把commons-logging.jar这个包添加上去之后又出现：java.lang.NoClassDefFoundError: com/mchange/v2/ser/Indirector，这个错，

但是我里边有这个jra包，后来又添加了“mchange-commons-”这个包后，出现【

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'driverClassName' of bean class [com.mchange.v2.c3p0.ComboPooledDataSource]: Bean property 'driverClassName' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

】所以我感觉不是这个包的问题，我把他去掉还是这个说数据源创建错误，

java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.SQLServerDriver  ：添加sqljdbc4.jar

4、在写查询所有用户工能：

报错：testUser is not mapped

问题所在： @Override
public List<User> findAllUsers() {
String hql = "from testUser order by userid asc";// TODO Auto-generated method stub
User user = new User();
List<User> list = this.getHibernateTemplate().find(hql);
return list;
}

对，就是testUser写错了！它是数据库中的表明，而正确的写法应该是实体类的User

@Override
public List<User> findAllUsers() {
String hql = "from User order by userid asc";// TODO Auto-generated method stub
User user = new User();
List<User> list = this.getHibernateTemplate().find(hql);
return list;
}

这样就解决了。

在这之前我还写错了ListUserAction的查询所有用户的方法：

我这样写的：

public String excute() throws Exception{
System.out.println("==========ListUserAction");
Map request = (Map) ActionContext.getContext().get("request");
List<UserForm> lisrUser = userService.findAllUsers();
System.out.println(lisrUser.get(0));
request.put("list", lisrUser);
return SUCCESS;
}

是粗心惹的祸！正确是 public String execute(){};
5、登录功能：也是一个掌握的细节！虽然不起眼，但却让我忙活了快一天的时间们终于解决！
登录功能的实现，首先是根据用户名去查询，我在serviceImpl中这样写的：
public User findByProperty(String propertyName, Object value) {
        String hql = " from User  where User."+propertyName+"=?";
        List<User> user = this.getHibernateTemplate().find(hql,value);
        if(user != null && user.size() == 1){
            return user.get(0);
        }
        return null;
    }
报错：Unable to resolve path [User.username],

参考这位博主的博客http://blog.csdn.net/kouhl/article/details/17550105终于把问题解决了:
Usert是类名，不能直接使用User.usernmae（不能通过类来访问，就好像你不能通过类名去访问实例变量一样），请不要问为什么，记住这是HQL的语法要求就行了。
那怎么办呢？通常会用别名的方式解决，比如
String hql = "from User as user where user."+propertyName+"=?"; （别名就好像是User类的一个对象，通过对象就可以访问实例变量啦）

这是我的源代码：
http://download.csdn.net/my

其他问题：

1、首先的报错如下：

严重: Could not open template
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'queryaction' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Error setting property values; nested exception isorg.springframework.beans.NotWritablePropertyException: Invalid property 'recordService' of bean class [com.action.QueryMobileAction]: Bean property 'recordService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1423)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1128)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:314)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
    at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117)
    at com.opensymphony.xwork2.spring.SpringObjectFactory.getClassInstance(SpringObjectFactory.java:221)
    at org.apache.struts2.components.ServletUrlRenderer.renderFormUrl(ServletUrlRenderer.java:161)
    at org.apache.struts2.components.Form.populateComponentHtmlId(Form.java:220)
    at org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:784)
    at org.apache.struts2.components.ClosingUIBean.start(ClosingUIBean.java:57)
    at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:53)
    at org.apache.jsp.jsp.iframes.IVR.IVR_005fmytd_jsp._jspx_meth_s_005fform_005f0(IVR_005fmytd_jsp.java:138)
    at org.apache.jsp.jsp.iframes.IVR.IVR_005fmytd_jsp._jspService(IVR_005fmytd_jsp.java:102)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:88)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2522)
    at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2511)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'recordService' of bean class [com.action.QueryMobileAction]: Bean property 'recordService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
    at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1042)
    at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:902)
    at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75)
    at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:57)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1420)
    ... 44 more

其中标红的就是真正的错误原因，在 com.action.QueryMobileAction]里边我原先是这样写的：
private RecordService rsService;
    public RecordSequence getRs() {
        return rs;
    }
    public void setRs(RecordSequence rs) {
        this.rs = rs;
    }
    public RecordService getRsService() {
        return rsService;
    }
    public void setRsService(RecordService rsService) {
        this.rsService = rsService;
    }
而报错说 'recordService' 没有set和get，我一直认为只要随便命名一个实例化的类就行了，所以一直忽略这个原因，现在我想可能action里的实例化的 RecordService这个类的名字要与 applicationContext.xml的
<bean id="recordService" class="com.serviceImpl.RecordServiceImpl">
         <property name="recordDao">
             <ref bean="recordDao"/>
         </property>
  </bean>
bean属性的id保持一致，这样才能找到action。
2、jsp页面标签问题：
<s:textfield name="user.username" lable="用户">

user那么表示在action中定义了一个user对象，里面有username属性
3、报错： Null value was assigned to a property of primitive type setter of com.beans.RecordSequence.flag
原因：我数据库中有一个字段flag为NULL,我实体类中写为：【private int flag;】所以不行，改为【private Integer flag;。我的映射类
<property name="flag" column="flag" type="java.lang.Integer" not-null="false" length="10"></property>是对的。
我改完之后，怎么运行还是报错，最终终于发现问题所在： 没有及时生成set和get方法！