整合struts2+spring+hibernate

一、准备struts2+spring+hibernate所须要的jar包:

新建web项目并将jar包引入到project项目中。

二、搭建struts2环境

a.在web项目的web.xml中增加struts2的过滤器，以过滤用户的全部请求，该过滤器将请求交给相应的Action处理。

    <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>

b.在项目中加入Action控制器并在项目中加入struts.xml文件对Action控制器进行配置。

Action:

package com.zhouxiang.action;

import com.opensymphony.xwork2.ActionSupport;

import com.zhouxiang.service.LoginService;

public class LoginAction extends ActionSupport {

	private String username;

	private String password;

	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 String Login() {

		return "Login";

	}

	public String LoginTest() {

		if (username!=null&&password!=null)) {

			return "Success";

		} else {

			return "faliure";

		}

	}

}

struts.xml:

<?

xml version="1.0" encoding="UTF-8" ?

>

<!DOCTYPE struts PUBLIC

	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

	"http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>

   　

	<constant name="struts.devMode" value="true" />

	<package name="default" namespace="/" extends="struts-default">

		<!-- <default-action-ref name="index" /> -->

		<action name="Login" class="LoginAction" method="Login">

			<result name="Login">

				/Login.jsp

			</result>

		</action>

		<action name="LoginAction" class="LoginAction" method="LoginTest">

			<result name="Success">

				/LoginSuccess.jsp

			</result>

			<result name="faliure">

				/LoginSuccess.jsp

			</result>

		</action>

	</package>

	<!-- Add packages here -->

</struts>

三、搭建spring环境并整合struts2

a.在web.xml中加入配置监听器，即把Spring 容器集成到 Web 应用里面。

<listener>

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

    </listener>

b.加入spring配置文件applicationContext.xml。Spring容器启动的时候会去读取配置信息。

c.改动struts2配置即将Action控制器交由spring容器管理。

<constant name="struts.objectFactory" value="spring" />

四、搭建hibernate环境并与spring及struts2整合

a.向applicationContext.xml中增加数据源配置信息——datasource bean

         <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

		<property name="driverClassName" value="com.mysql.jdbc.Driver">

		</property>

		<property name="url" value="jdbc:mysql://localhost:3306/TestProject1"></property>

		<property name="username" value="root"></property>

		<property name="password" value="123456"></property>

         </bean>

b.向applicationContext.xml中增加hibernate配置信息——sessionfactory bean及对应的实体映射文件配置信息

       <bean id="sessionFactory"

		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

		<property name="dataSource" ref="dataSource">

		</property>

		<property name="mappingResources">

			<list>

				<value>com/zhouxiang/bean/User.hbm.xml</value>

			</list>

		</property>

		<property name="hibernateProperties">

			<value>

				hibernate.dialect=org.hibernate.dialect.MySQLDialect

				hibernate.hbm2ddl.auto=update

				hibernate.show_sql=true

				hibernate.format_sql=false

			</value>

		</property>

	</bean>

c.将配置bean信息到applicationContext.xml中，即将项目中的bean交给spring容器管理。

        <bean id="userdao" class="com.zhouxiang.DaoImp.UserDaoImp" parent="basedaoimp">

	        <property name="sessionFactory" ref="sessionFactory"></property>

	</bean>

	<bean id="loginService" class="com.zhouxiang.service.LoginService">

		<property name="userdao" ref="userdao"></property>

	</bean>

	<bean id="LoginAction" class="com.zhouxiang.action.LoginAction">

		<property name="loginservice" ref="loginService"></property>

	</bean>

将hibernate整合到spring中，不须要加入不论什么新东西，仅仅须要导入对应的jar包，并在applicationContext.xml中加入数据源及hibernate的一些配置等配置信息就可以。

五、登录demo

<%@ page language="java" contentType="text/html; charset=utf-8"

    pageEncoding="utf-8"%>

<!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=ISO-8859-1">

<title>Insert title here</title>

</head>

<body>

<form action="LoginAction">

用户名：<input type="text" name="username"><br>

密    码：<input type="password" name="password"><br>

<input type="submit" value="登录">

</form>

</body>

</html>

LoginAction:

package com.zhouxiang.action;

import com.opensymphony.xwork2.ActionSupport;

import com.zhouxiang.service.LoginService;

public class LoginAction extends ActionSupport {

	private String username;

	private String password;

	private LoginService loginservice;

	public LoginService getLoginservice() {

		return loginservice;

	}

	public void setLoginservice(LoginService loginservice) {

		this.loginservice = loginservice;

	}

	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 String Login() {

		System.out.println("hello");

		return "Login";

	}

	public String LoginTest() {

		if (loginservice.UserInfoValidate(username, password)) {

			return "Success";

		} else {

			return "faliure";

		}

	}

}

LognService

package com.zhouxiang.service;

import com.zhouxiang.DaoImp.UserDaoImp;

public class LoginService {

	private UserDaoImp userdao;

	public UserDaoImp getUserdao() {

		return userdao;

	}

	public void setUserdao(UserDaoImp userdao) {

		this.userdao = userdao;

	}

	public Boolean UserInfoValidate(String username, String password)

	{

	 if (userdao.Query(username)!=null)

		return true;

	 else

		return false;

	}

}

BaseDao接口：

package com.zhouxiang.BaseDao;

public interface BaseDao <T>{

	public Boolean Add(T t);

	public Boolean Delete(String id);

	public T Query(String id);

	public Boolean Modify(T t);

}

BaseDaoImp:

package com.zhouxiang.BaseDaoImp;

import java.lang.reflect.ParameterizedType;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import com.zhouxiang.BaseDao.BaseDao;

public abstract class BaseDaoImp<T> implements BaseDao<T> {

	private Class<T> clazz;

	private SessionFactory sessionFactory;

	public SessionFactory getSessionFactory() {

		return sessionFactory;

	}

	public void setSessionFactory(SessionFactory sessionFactory) {

		this.sessionFactory = sessionFactory;

	}

	public BaseDaoImp()

	{

		// 使用反射技术得到T的真实类型

				ParameterizedType pt = (ParameterizedType) this.getClass().getGenericSuperclass(); // 获取当前new的对象的 泛型的父类 类型

				this.clazz = (Class<T>) pt.getActualTypeArguments()[0]; // 获取第一个类型參数的真实类型

	}

	protected Session getSession()

	{

		return sessionFactory.openSession();

	}

	@Override

	public Boolean Add(T t) {

		// TODO Auto-generated method stub

		return null;

	}

	@Override

	public Boolean Delete(String id) {

		// TODO Auto-generated method stub

		return null;

	}

	@Override

	public T Query(String id) {

		// TODO Auto-generated method stub

		if(id==null)

				{

			return null;

				}

		else{

			System.out.println("sdfsd");

			return (T) getSession().get(clazz, id);

		   }

	}

	@Override

	public Boolean Modify(T t) {

		// TODO Auto-generated method stub

		return null;

	}

}

UserDao接口：

package com.zhouxiang.Dao;

import com.zhouxiang.BaseDao.BaseDao;

import com.zhouxiang.bean.User;

public interface UserDao extends BaseDao<User> {

}

UserDaoImp :

package com.zhouxiang.DaoImp;

import com.zhouxiang.BaseDaoImp.BaseDaoImp;

import com.zhouxiang.Dao.UserDao;

import com.zhouxiang.bean.User;

public class UserDaoImp extends BaseDaoImp<User> implements UserDao {

}

项目配置文件web.xml：

<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.5"

	xmlns="http://java.sun.com/xml/ns/javaee"

	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

  <display-name></display-name>

  <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>

 <listener>

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

    </listener>

    <!-- Application Listener for Mailreader database

    <listener>

        <listener-class>

            mailreader2.ApplicationListener

        </listener-class>

    </listener>

-->

  <welcome-file-list>

    <welcome-file>index.jsp</welcome-file>

  </welcome-file-list>

</web-app>

struts.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE struts PUBLIC

	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"

	"http://struts.apache.org/dtds/struts-2.3.dtd">

<struts>

   　

	<constant name="struts.objectFactory" value="spring" />

	<package name="default" namespace="/" extends="struts-default">

		<!-- <default-action-ref name="index" /> -->

		<action name="Login" class="LoginAction" method="Login">

			<result name="Login">

				/Login.jsp

			</result>

		</action>

		<action name="LoginAction" class="LoginAction" method="LoginTest">

			<result name="Success">

				/LoginSuccess.jsp

			</result>

			<result name="faliure">

				/LoginSuccess.jsp

			</result>

		</action>

	</package>

	<!-- Add packages here -->

</struts>

applicationContext.xml:

<?xml version="1.0" encoding="UTF-8"?

>

<!-- - Application context definition for JPetStore's business layer. - Contains

	bean references to the transaction manager and to the DAOs in - dataAccessContext-local/jta.xml

	(see web.xml's "contextConfigLocation"). -->

<beans xmlns="http://www.springframework.org/schema/beans"

	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"

	xmlns:tx="http://www.springframework.org/schema/tx"

	xsi:schemaLocation="

			http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

			http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd

			http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

	<!-- ========================= GENERAL DEFINITIONS ========================= -->

	<!-- Configurer that replaces ${...} placeholders with values from properties

		files -->

	<!-- (in this case, mail and JDBC related properties) -->

	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">

		<property name="driverClassName" value="com.mysql.jdbc.Driver">

		</property>

		<property name="url" value="jdbc:mysql://localhost:3306/TestProject1"></property>

		<property name="username" value="root"></property>

		<property name="password" value="123456"></property>

	</bean>

	<bean id="sessionFactory"

		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

		<property name="dataSource" ref="dataSource">

		</property>

		<property name="mappingResources">

			<list>

				<value>com/zhouxiang/bean/User.hbm.xml</value>

			</list>

		</property>

		<property name="hibernateProperties">

			<value>

				hibernate.dialect=org.hibernate.dialect.MySQLDialect

				hibernate.hbm2ddl.auto=update

				hibernate.show_sql=true

				hibernate.format_sql=false

			</value>

		</property>

	</bean>

	<bean id="basedaoimp" class="com.zhouxiang.BaseDaoImp.BaseDaoImp"

		abstract="true">

		<property name="sessionFactory" ref="sessionFactory"></property>

	</bean>

	<bean id="userdao" class="com.zhouxiang.DaoImp.UserDaoImp" parent="basedaoimp">

		<property name="sessionFactory" ref="sessionFactory"></property>

	</bean>

	<bean id="loginService" class="com.zhouxiang.service.LoginService">

		<property name="userdao" ref="userdao"></property>

	</bean>

	<bean id="LoginAction" class="com.zhouxiang.action.LoginAction">

		<property name="loginservice" ref="loginService"></property>

	</bean>

</beans>

六、总结

SSH的环境搭建没有什么难度。须要的仅仅是一些jar包和一些配置文件。struts+spring+hibernate整合的过程中须要注意的是引入的一些jar包及为什么使用这些jar包，这些jar包的作用是什么。当然不可缺少的另一些配置文件，如web项目初始化须要做的，怎样将spring容器增加到项目中。一集怎样将struts跟hibernate、及项目中用到的实体bean、业务逻辑bean交给spring容器管理。整个环境搭建的过程最重要的是去理解三大框架是怎样独立工作的，又是怎样衔接工作的。