为什么要使用注解？
正常情况下没有注解的话会导致spring配置文件中多个实体配置需要注入多个Bean，每个实体每个框架中需要多个配置文件，十分繁琐。
导包过程：Spring需要面向切面，日志管理等，其他的三大框架内容由MyEclipse自动导入。
web.xml 不变 如果通过注解方式进行ssh配置，注解应该放在web-inf/content，（webinf中的文件不能通过地址栏进行访问，只能通过跳转显示）设置结果路径为根目录下
<constant name="struts.convention.result.path" value="/"/>默认包路径包含action的所有包都会被struts作为含有Action类的路径来搜索
<constant name="struts.convention.default.parent.package" value="default-package" />
<constant name="struts.convention.package.loacltors" value="action"/>
<package dname="default-package' extends="json-default">
</package>建立Spring配置文件
为Spring指定扫描注解bean组件的根包
<contant;component-scan base-package="com.it"/>为Spring声明使用注解事务，并制定所依赖的事务管理器包
tx:annotation-driven transaction-manager="txManager"/><property name="annotatedClasses">
<list> 此处指定注解实体类</list>
</property>配置事务管理器
<bean id="txManager"
class="org.springramework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory"/>
</bean>Hibernate持久化类
@Entity@Table(name="student')
public class Student{
}
@SequenceGenerator(name="generator",sequenceName="se_per",alloctionSize=1)//表示每次主键值增加的大小，例如设置成1，则表示每次创建新纪录后自动加1，默认为50
@Id
@GeneratedValue(strategy=SEQUENCE,generator="generator")
@Column(name="stuId",unique=true,nullable=false,percision=5,scale=0)
ServiceImpl.java
@Transactional声明该类的方法都是事务性
@Service("studentService")//声明该类是Spring管理的业务bean，其id为studentService
private SessionFactory sessionFacotry;
@Autowired//声明从spring容器中自动注入sessionFacotry写在set方法上
开发Sturts2的Action
@Controller
@Scope("prototype")//单例
@ParentPackage(value="default-package")
@Namespace("/")
@Results({
@Result(name="success",location="success.jsp"，type="dispatch"),//默认类型请求转发
@Result(name="input',location="register.jsp"),
@Result(name="returnjson",type="json"),
})其中sturts.xml还有用，指定default package的值。
全部的三大框架均由MyEclipse软件生成注入，cfg配置文件和hbm.xml文件均写入applicationContext.xml中和注释中。
注意：先添加Spring框架，再加入Hibernate框架，最后注入Sturts2。
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd"
xmlns:tx="http://www.springframework.org/schema/tx">
<bean id="dataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<property name="url" value="jdbc:oracle:thin:@localhost:1521:orcl"></property>
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"></property>
<property name="username" value="system"></property>
<property name="password" value="Yuquan980730"></property>
</bean>
<context:annotation-config/>
<context:component-scan base-package="com.it.ssh"></context:component-scan>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
<property name="dataSource">
<ref bean="dataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
org.hibernate.dialect.Oracle9Dialect
</prop>
</props>
</property>
<property name="annotatedClasses">
<list>
<value>com.it.ssh.entity.Person</value></list>
</property></bean>
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" /></beans>struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "http://struts.apache.org/dtds/struts-2.1.dtd">
<struts>
<constant name="struts.convention.result.path" value="/"></constant>
</struts> web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaeehttp://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>8_6SSH</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>Person实体类
package com.it.ssh.entity;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import static javax.persistence.GenerationType.SEQUENCE;
import javax.persistence.Id;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
/**
* Person entity. @author MyEclipse Persistence Tools
*/
@Entity
@Table(name = "PERSON", schema = "SYSTEM")
public class Person implements java.io.Serializable {
// Fields
private Integer pid;
private String pname;
private String pwd;
// Constructors
/** default constructor *
public Person() {
}
/** full constructor */
public Person(String pname, String pwd) {
this.pname = pname;
this.pwd = pwd;
}
// Property accessors
@SequenceGenerator(name = "generator",sequenceName="seq_newsId",allocationSize=1)
@Id
@GeneratedValue(strategy = SEQUENCE, generator = "generator")
@Column(name = "PID", unique = true, nullable = false, precision = 5, scale = 0)
public Integer getPid() {//
return this.pid;
}
public void setPid(Integer pid) {
this.pid = pid;
}
@Column(name = "PNAME", length = 20)
public String getPname() {
return this.pname;
}
public void setPname(String pname) {
this.pname = pname;
}
@Column(name = "PWD", length = 20)
public String getPwd() {
return this.pwd;
}
public void setPwd(String pwd) {
this.pwd = pwd;
}
}PersonDao.java
package com.it.ssh.dao;
import com.it.ssh.entity.Person;
public interface personDao {
public boolean login(Person person);
}PersonDaoImpl.java
package com.it.ssh.Impl;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import com.it.ssh.dao.personDao;
import com.it.ssh.entity.Person;
@Repository
public class PersonDaoImpl implements personDao {
private SessionFactory sessionFactory;
@Autowired
public void setSessionFactory(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
@Override
public boolean login(Person person) {
// TODO Auto-generated method stub
String hql="from Person where pid=? and pwd=?";
Session session=sessionFactory.getCurrentSession();
Query q=session.createQuery(hql);
q.setInteger(0, person.getPid());
q.setString(1, person.getPwd());
boolean flag=false;
Object obj=q.uniqueResult();
if(obj!=null){
flag=true;
}
return flag;
}
}
personService.java
package com.it.ssh.dao;
import com.it.ssh.entity.Person;
public interface personService {
public boolean login(Person person);
}personServiceImpl.java
package com.it.ssh.Impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.it.ssh.dao.personDao;
import com.it.ssh.dao.personService;
import com.it.ssh.entity.Person;
@Service("personService")
@Transactional
public class personSerivceImpl implements personService {
private personDao personDao;
@Autowired
public void setPersonDao(personDao personDao) {
this.personDao = personDao;
}
@Override
public boolean login(Person person) {
// TODO Auto-generated method stub
return personDao.login(person);
}
}
PersonAction.java
package com.it.ssh.action;
import javax.annotation.Resource;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.convention.annotation.Results;
import org.springframework.stereotype.Controller;
import com.it.ssh.dao.personService;
import com.it.ssh.entity.Person;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
@Controller
@Results({@Result(name="success",location="show.jsp"),@Result(name="input",location="index.jsp",type="redirect")})
public class personAction extends ActionSupport implements ModelDriven<Person>{
/**
*
*/
private static final long serialVersionUID = 1L;
Person person =new Person();
private personService personService;
@Resource(name="personService")
public void setPersonService(personService personService) {
this.personService = personService;
}
@Override
public Person getModel() {
// TODO Auto-generated method stub
return person;
}
public String login() throws Exception {
boolean flag=false;
flag=personService.login(person);
String path=INPUT;
if(flag){
path=SUCCESS;
}
return path;
}
}
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<s:form action="person!login" method="post">
<s:textfield name="pid" label="账号"></s:textfield>
<s:password name="pwd" label="密码"></s:password>
<tr>
<td colspan="2">
<s:submit value="提交" theme="simple"></s:submit>
</td>
</tr>
</s:form>
</body>
</html>show.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'show.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<s:property value="pid"/>
</body>
</html>