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
- 尝试搭建一个完整的SSH框架项目。
- 给以后的自己，也给别人一个参考。
读博文前应该注意：
- 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。
- 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。
- 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。 - 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)
- );
- 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
- 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
- 在Eclipse中创建一个Dynamic Web Project，本文项目名称为SSHProject。
- 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。
- 在src目录下创建相应package。
- 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 Projectdisplay-name>
- <filter>
- <filter-name>SSHfilter-name>
- <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilterfilter-class>
- filter>
- <filter-mapping>
- <filter-name>SSHfilter-name>
- <url-pattern>/*url-pattern>
- filter-mapping>
- <welcome-file-list>
- <welcome-file>index.htmlwelcome-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"%>
- >
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
- <title>User Register Pagetitle>
- 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"?>
- "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">
- <validators>
- <field name="user.username">
- <field-validator type="requiredstring">
- <param name="trim">trueparam>
- <message>用户名不能为空message>
- field-validator>
- <field-validator type="regex">
- <param name="expression">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>
- <field name="user.password">
- <field-validator type="requiredstring">
- <param name="trim">trueparam>
- <message>密码不能为空message>
- field-validator>
- <field-validator type="regex">
- <param name="expression">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" ?>
- "-//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.jspresult>
- <result name="success">/Success.jspresult>
- <result name="error">/Fail.jspresult>
- 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
- 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。
- 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。
- 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。
- 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。
- 建立Hibernate配置文件。路径：src目录下。
- 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。
- 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
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'?>
- "-//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'?>
- "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
- "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
- <hibernate-configuration>
- <session-factory>
- <property name="connection.driver_class">com.mysql.jdbc.Driverproperty>
- <property name="connection.url">jdbc:mysql://localhost:3306/projectproperty>
- <property name="connection.username">rootproperty>
- <property name="connection.password">rootproperty>
- <property name="dialect">org.hibernate.dialect.MySQLDialectproperty>
- <property name="show_sql">trueproperty>
- <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
threadLocal = new ThreadLocal(); - 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
- 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）
- 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。
- 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。
- 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。
- 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。
- 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。
- 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。
- 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">
- <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
- destroy-method="close">
- <property name="driverClass">
- <value>com.mysql.jdbc.Drivervalue>
- property>
- <property name="jdbcUrl">
- <value>jdbc:mysql://localhost/projectvalue>
- property>
- <property name="user">
- <value>rootvalue>
- property>
- <property name="password">
- <value>rootvalue>
- property>
- <property name="maxPoolSize">
- <value>80value>
- property>
- <property name="minPoolSize">
- <value>1value>
- property>
- <property name="initialPoolSize">
- <value>1value>
- property>
- <property name="maxIdleTime">
- <value>20value>
- property>
- bean>
- <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.xmlvalue>
- list>
- property>
- <property name="hibernateProperties">
- <props>
- <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialectprop>
- <prop key="show_sql">trueprop>
- <prop key="hibernate.jdbc.batch_size">20prop>
- 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>
- <bean id="userManager" class="com.ynwi.ssh.serviceImpl.UserManagerImpl">
- <property name="dao">
- <ref bean="baseDao" />
- property>
- bean>
- <bean id="regAction" class="com.ynwi.ssh.action.RegisterAction">
- <property name="userManager">
- <ref bean="userManager" />
- property>
- bean>
- 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;
- }
- 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 Projectdisplay-name>
- <filter>
- <filter-name>SSHfilter-name>
- <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilterfilter-class>
- filter>
- <filter-mapping>
- <filter-name>SSHfilter-name>
- <url-pattern>/*url-pattern>
- filter-mapping>
- <listener>
- <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
- listener>
- <welcome-file-list>
- <welcome-file>index.htmlwelcome-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" ?>
- "-//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.jspresult>
- <result name="success">/Success.jspresult>
- <result name="error">/Fail.jspresult>
- 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
- 创建Dynamic Web Project并且导入jar包。
- 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。
- 在WEB_INF下面创建web.xml并配置Struts的Filter和Spring的Listener。
- 在WEB-INF下面创建applicationContext.xml并配置数据源，sessionFactory，Transaction以及各Beans信息。
- 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（
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 findAllUsers() {
String hql = "from testUser order by userid asc";// TODO Auto-generated method stub
User user = new User();
List 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
public List
String hql = "from testUser order by userid asc";// TODO Auto-generated method stub
User user = new User();
List
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 findAllUsers() {
String hql = "from User order by userid asc";// TODO Auto-generated method stub
User user = new User();
List list = this.getHibernateTemplate().find(hql);
return list;
}
public List
String hql = "from User order by userid asc";// TODO Auto-generated method stub
User user = new User();
List
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 lisrUser = userService.findAllUsers();
System.out.println(lisrUser.get(0));
request.put("list", lisrUser);
return SUCCESS;
}
System.out.println("==========ListUserAction");
Map request = (Map) ActionContext.getContext().get("request");
List
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 = 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
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
id="recordService" class="com.serviceImpl.RecordServiceImpl">
bean属性的id保持一致，这样才能找到action。
2、jsp页面标签问题：
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
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！
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
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
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属性的id保持一致，这样才能找到action。
2、jsp页面标签问题：
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
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！