Struts2+Spring3+Hibernate4框架配置方案

原文链接：http://www.cnblogs.com/spring-hibernate/archive/2012/05/04/2482629.html

本文以给出了一个完整的SSH(Struts2+Spring3+Hibernat4)框架配置方案。适合刚刚学习SSH

例子SSHDemo演示了又前台传入请求hello.do,请求，返回一条由数据库中取出的数据。

第一步、建立项目

1．用MyEclipse建立SSHDemo项目。你至少需要下面的jar文件：

1.Struts.jar 2.commons-beanutils.jar 3.commons-digester.jar

4. commons-collections.jar 5. commons-logging.jar 6．Hibernate3.jar

7. antlr-2.7.6.jar 8.asm.jar 9.cglib-2.1.1.jar

10. dom4j-1.6.1.jar 11.dom4j-1.6.1.jar 12. ehcache-1.2.jar 13.jta.jar

14. log4j-1.2.11.jar 15. mysql-connector-java-5.0.0-beta-bin.jar 16. spring.jar

这些文件你可以在spring的下载包中找到。把上面的jar文件加入classPath中，并拷贝到WEB-INF中的lib中。

第二步、建立相关文件，包括类文件，jsp文件等

1 1.建立hello.jsp 用来显示由数据库传来的信息

hello.jsp

<%@ page language="java" contentType="text/html; charset=GB2312"

pageEncoding="GB2312"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=GB2312">

<title>Struts Demo</title>

</head>

<body>

<H1>Hell, ${userInfo["username"]} !</H1>

</body>

</html>

2. 建立数据库表

create table us (id int(10) primary key auto_increment, name varchar(20))type=innodb;

insert into us (name) values("zhaoyuan");

3．创建User.java

package edu.bjtu.zhao.ssh;

publicclass User {

private Integer id;

private String name;

public Integer getId() {

returnid;

}

publicvoid setId(Integer id) {

this.id = id;

}

public String getName() {

returnname;

}

publicvoid setName(String name) {

this.name = name;

}

4. 创建UserDAO.java

package edu.bjtu.zhao.ssh;

import org.hibernate.Hibernate;

import org.hibernate.Session;

import org.hibernate.SessionFactory;

import org.hibernate.Transaction;

public class UserDAO {

private SessionFactory sessionFactory;

public UserDAO() {

}

public UserDAO(SessionFactory sessionFactory) {

this.setSessionFactory(sessionFactory);

}

public void setSessionFactory(SessionFactory sessionFactory) {

this.sessionFactory = sessionFactory;

}

public User find(Integer id) {

Session session = sessionFactory.openSession();

User user = (User) session.load(User.class, id);

Hibernate.initialize(user);

session.close();

return user;

}

5．创建HalloAction.java

package edu.bjtu.zhao.ssh;

import java.util.*;

import javax.servlet.http.*;

import org.apache.struts.action.Action;

import org.apache.struts.action.ActionForm;

import org.apache.struts.action.ActionForward;

import org.apache.struts.action.ActionMapping;

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.ClassPathXmlApplicationContext;

public class HelloAction extends Action {

// private UserChecker userChecker;

public ActionForward execute(

ActionMapping mapping,

ActionForm form,

HttpServletRequest request,

HttpServletResponse response)

throws Exception {

String username = request.getParameter("user");

ApplicationContext context=new ClassPathXmlApplicationContext("applicationContext.xml");

//建立DAO对象

UserDAO userDAO = (UserDAO) context.getBean("userDAO");

User user = new User();

user = userDAO.find(new Integer(1));

if(username==null )

{

username=user.getName();

}

Map model = new HashMap();

model.put("username", username);

request.setAttribute("userInfo", model);

return mapping.findForward("helloUser");

}

第三步，开始配置路线图中的6个xml文件（你可以参考文章的路线图）

1．配置web.xml

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

<web-app id="WebApp_ID" 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 [url]http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd[/url]">

<session-config>

<session-timeout>

</session-timeout>

</session-config>

<servlet>

<servlet-name>action</servlet-name>

<servlet-class>

org.apache.struts.action.ActionServlet

</servlet-class>

<init-param>

<param-name>config</param-name>

<param-value>

/WEB-INF/struts-config.xml

</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>action</servlet-name>

<url-pattern>*.do</url-pattern>

</servlet-mapping>

<!—配置Spring的applicationContext.xml-->

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>

/WEB-INF/classes/applicationContext.xml

</param-value>

</context-param>

</web-app>

2. 配置struts-config.xml

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

<!DOCTYPE struts-config PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"

"http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">

<struts-config>

<action-mappings>

<action

path="/hello"

type="org.springframework.web.struts.DelegatingActionProxy">

<forward

name="helloUser"

path="/WEB-INF/jsp/hello.jsp"/>

</action>

</action-mappings>

<plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">

<set-property property="contextConfigLocation"

value="/WEB-INF/action-servlet.xml"/>

</plug-in>

</struts-config>

3.配置ApplicationContext.xml

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

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

<bean id="userDAO" class="edu.bjtu.zhao.ssh.UserDAO">

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

</bean>

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<property name="configLocation">

<value>hibernate.cfg.xml</value>

</property>

</bean>

</beans>

4. 配置action-servlet.xml

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

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

<!-- 与struts-config.xml里的"/hello"对应，由代理类返回HelloActoine类

到此spring 与struts配置完毕，也就是还说spring只是管理了action

-->

<bean name="/hello"

class="edu.bjtu.zhao.ssh.HelloAction">

</bean>

</beans>

5. 配置hibernate.cfg.xml

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

<!DOCTYPE hibernate-configuration PUBLIC

"-//Hibernate/Hibernate Configuration DTD 3.0//EN"

"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

<session-factory>

<property name="show_sql">true</property>

<property name="dialect">

org.hibernate.dialect.MySQLDialect

</property>

<property name="connection.driver_class">

com.mysql.jdbc.Driver

</property>

<property name="connection.url">

jdbc:mysql://localhost:3306/sample

</property>

<property name="connection.username">root</property>

<property name="connection.password">

</property>

<mapping resource="edu/bjtu/zhao/ssh/User.hbm.xml"/>

</session-factory>

</hibernate-configuration>

6. 创建映射文件User.hbm.xml

<?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>

<class name="edu.bjtu.zhao.ssh.User"

table="user">

<generator class="native"/>

</id>

<property name="name" column="name"/>

</class>

</hibernate-mapping>

第四步，测试

1. 打开TOMCAT_HOME/conf/server.xml，在<Host>下配置

<Context path="/SSHDemo" docBase="D:\j2ee\workspace\SSHDemo\WebRoot" reloadable="true" debug="0">

</Context>

2．启动TOMCAT，

在IE中输入[url]http://localhost:8080/SSHDemo/hello.do[/url]

将显示“Hello zhaoyuan”

在IE中输入[url]http://localhost:8080/SSHDemo/hello.do?user=yourname[/url]

将显示“hello yourname”；

以上程序在

tomcat-5.5.17，jdk1.5.0_06 MySQLversion: 4.0.14-nt 下测试成功。

运行实例：http://www.xmsydw.com/gwysydw

看到输出的结果，说明配置成功，你拥有了自己的SSH开发框架。这只是一个入门级别的框架配置，用来做个Demo还可以，如果用它来做企业级开发，我基本上可以断言不能。因为至少连接池没配，再说用SSH这种东西来开发，虽然网上炒的比较热，但在具体的项目中还是要慎用。

posted on 2012-09-04 16:49 董忱阅读(153) 评论(0) 收藏举报