一、准备struts2+spring+hibernate所需要的jar包:
新建web项目并将jar包引入到工程项目中。
二、搭建struts2环境
a.在web项目的web.xml中加入struts2的过滤器,以过滤用户的所有请求,该过滤器将请求交给对应的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.在项目中添加Action控制器并在项目中添加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中添加配置监听器,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.添加spring配置文件applicationContext.xml,Spring容器启动的时候会去读取配置信息。
c.修改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中加入数据源配置信息——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中加入hibernate配置信息——sessionfactory bean及相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,不需要添加任何新东西,只需要导入相应的jar包,并在applicationContext.xml中加入数据源及hibernate的一些配置等配置信息即可。
五、登录demo
Login.jsp:
<%@ 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]; // 获取第一个类型参数的真实类型 } 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,需要的只是一些jar包和一些配置文件。struts+spring+hibernate整合的过程中需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。当然必不可少的还有一些配置文件,如web项目初始化需要做的,如何将spring容器加入到项目中,一集如何将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如何独立工作的,又是如何衔接工作的。