基于Struts+Spring+Hibernate的Web应用框架的搭建（一）

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这个Web应用很简单，就是实现一个用户注册页面，当用户在register.jsp页面输入注册信息，点保存，如果成功，进入registerSuccess.jsp页面。这个应用虽然很小，但它也有三层组成，表示层由Struts框架负责，业务层由Spring框架负责，持久层由Hibernate框架负责。

开发环境：MyEclipse 5+ MySQL4 + Struts1.3.5 + Spring2.0.1 + Hibernate3.2.1 + Tomcat5.0.19 + jdk1.4.2_06.

1. 首先，我们在MyEclipse中新建一个Web Project ,login；

2．然后把Struts,Spring,Hibernate框架所需要的jar包以及MySQL的驱动拷贝到WEB－INF/lib下；

3．创建用户注册页面register.jsp

<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>

<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %>

<html>

<head>

</head>

<body>

<html:errors />

<html:form action="register.do">

<tr>

</tr>

<tr>

</tr>

<tr>

</tr>

<tr>

<html:submit><bean:message key="register.submit"/></html:submit>

</td>

</tr>

</table>

</html:form>

</body>

</html>

4.创建注册成功后显示的页面registerSuccess.jsp

<%@ taglib uri=" http://struts.apache.org/tags-bean " prefix="bean" %>

<html>

<head>

</head>

<body>

<bean:message key="register.success"/>

</body>

</html>

5. 创建消息资源文件registermessages.properties

6. 由于我们使用动态ActionForm,只需在Struts-config.xml中配置与register.jsp页面中form对应的ActionForm。

7. 创建配置文件Struts-config.xml

<?xml version="1.0" encoding="iso-8859-1"?>

<!DOCTYPE struts-config PUBLIC

"-//Apache Software Foundation//DTD Struts Configuration 1.3//EN"

"http://struts.apache.org/dtds/struts-config_1_3.dtd">

<!--

Default configuration file for examples application.

Each module also has its own struts-config under: /WEB-INF/$MODULE/

@version $Revision: 1.9 $ $Date: 2006-02-13 18:39:49 -0700 (Mon, 13 Feb 2006) $

-->

<struts-config>

<form-beans >

<!—配置register.jsp中form对应的ActionFrom-->

<form-bean name="registerForm" type="org.apache.struts.action.DynaActionForm" >

<form-property name="register" type="test.register.entity.Register"/>

</form-bean>

</form-beans>

<!—配置对Struts Action请求的代理-->

<!—配置register.jsp中form对应的Action-->

<action-mappings >

<action

name="registerForm"

path="/register"

scope="request"

type="test.register.action.RegisterAction"

validate="false"

input="register.jsp">

</action>

</action-mappings>

<message-resources parameter="test.register.registermessages" />

<!—配置插件，让action能访问sping容器-->

<plug-in

className="org.springframework.web.struts.ContextLoaderPlugIn">

<set-property property="contextConfigLocation"

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

</plug-in>

</struts-config>

8. 创建实体类Register.java

package test.register.entity;

import java.io.Serializable;

publicclass Register implements Serializable{

privatestaticfinallongserialVersionUID = 1521645755684977819L;

private Long id;

private String username;

private String password;

private String email;

public Register(){

}

public String getEmail() {

returnemail;

}

publicvoid setEmail(String email) {

this.email = email;

}

public Long getId() {

returnid;

}

publicvoid setId(Long id) {

this.id = id;

}

public String getPassword() {

returnpassword;

}

publicvoid setPassword(String password) {

this.password = password;

}

public String getUsername() {

returnusername;

}

publicvoid setUsername(String username) {

this.username = username;

}

9.创建Hibernate映射文件，Register.hbm.xml

<?xml version="1.0"?>

<!DOCTYPE hibernate-mapping PUBLIC

"-//Hibernate/Hibernate Mapping DTD 3.0//EN"

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

<hibernate-mapping

package="test.register.entity">

</id>

<property name="username"

not-null="true"

length="15"

column="USERNAME"/>

<property name="password"

not-null="true"

length="15"

column="PASSWORD"/>

<property name="email"

not-null="true"

length="15"

column="EMAIL"/>

</class>

</hibernate-mapping>

9. 创建Spring配置文件applicationContext.xml

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

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<beans>

</bean>

<value>classpath:test/register/entity/</value>

</property>

<props>

<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>

</props>

</property>

</bean>

</property>

</bean>

</property>

</bean>

</beans>

10. 创建数据访问对象RegisterDAO.java

package test.register.dao;

import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import test.register.entity.Register;

publicclass RegisterDAO extends HibernateDaoSupport{

public Register saveRegister(Register r){

try{

this.getHibernateTemplate().saveOrUpdate(r);

return r;

}catch (Exception e) {

e.printStackTrace();

returnnull;

}

12.创建服务对象RegisterService.java

package test.register.service;

import test.register.dao.RegisterDAO;

import test.register.entity.Register;

publicclass RegisterService {

private RegisterDAO registerDAO;

publicRegisterDAO getRegisterDAO() {

returnregisterDAO;

}

publicvoid setRegisterDAO(RegisterDAO registerDAO) {

this.registerDAO = registerDAO;

}

public Register saveRegister(Register r){

this.getRegisterDAO().saveRegister(r);

return r;

}

11. 创建web.xml

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

<!DOCTYPE web-app PUBLIC

"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

"http://java.sun.com/dtd/web-app_2_3.dtd">

<web-app>

<context-param>

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

<param-value>/WEB-INF/applicationContext.xml</param-value>

</context-param>

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

</listener>

<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>

<init-param>

<param-name>debug</param-name>

<param-value>3</param-value>

</init-param>

<init-param>

<param-name>detail</param-name>

<param-value>3</param-value>

</init-param>

<load-on-startup>0</load-on-startup>

</servlet>

<servlet-mapping>

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

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

</servlet-mapping>

<welcome-file-list>

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

</welcome-file-list>

</web-app>

14．创建RegisterAction.java

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

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.apache.struts.action.DynaActionForm;

import test.register.entity.Register;

import test.register.service.RegisterService;

publicclass RegisterAction extends Action{

private RegisterService registerService;

public RegisterService getRegisterService() {

returnregisterService;

}

publicvoid setRegisterService(RegisterService registerService) {

this.registerService = registerService;

}

public ActionForward execute(ActionMapping mapping,

ActionForm form,

HttpServletRequest request,

HttpServletResponse response)

throws Exception {

getRegisterService().saveRegister(r);

return mapping.findForward("success");

}

在RegisterAction.java中，为了获取spring容器中的RegisterService对象，我们要对struts-config.xml作下修改，具体修改如下：

在struts-config.xml增加controller元素

目的告诉Struts自动将对Action的请求委托给Spring上下文中的Struts Action来处理。

并且为了让Struts能访问Spring容器，还必须在struts-config.xml注册一个能访问Spring上下文的插件：

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

<set-property property="contextConfigLocation"

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

</plug-in>

action-servlets.xml文件的具体内容如下：

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

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<beans>

</bean>

</beans>

注意：这里bean是name属性，而不是id。

至此，一个完整的SSH（Struts,Spring,Hibernate）框架搭建好了。