Struts,Spring,Hibernate Web应用开发1
本文摘自：http://www.blogjava.net/jacky9881/archive/2008/01/02/172076.html
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
1<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %> 2<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html" %> 3<html> 4 5<head> 6 <title><bean:message key="register.title"/></title> 7</head> 8 9<body> 10<html:errors /> 11 <html:form action="register.do"> 12 <table > 13 <tr> 14 <td><bean:message key="register.username"/>:</td> 15 <td><html:text property="register.username" /></td> 16 </tr> 17 <tr> 18 <td><bean:message key="register.password"/>:</td> 19 <td><html:password property="register.password" /></td> 20 </tr> 21 <tr> 22 <td><bean:message key="register.email"/>:</td> 23 <td><html:text property="register.email" /></td> 24 </tr> 25 <tr> 26 <td colspan="2" align="center"> 27 <html:submit><bean:message key="register.submit"/></html:submit> 28 </td> 29 </tr> 30 </table> 31 </html:form> 32</body> 33 34</html>
4.创建注册成功后显示的页面registerSuccess.jsp
1<%@ taglib uri=" http://struts.apache.org/tags-bean " prefix="bean" %> 2<html> 3 4<head> 5 <title><bean:message key="register.title"/></title> 6</head> 7 8<body> 9 <bean:message key="register.success"/> 10</body> 11 12</html>
5. 创建消息资源文件registermessages.properties
1register.title = Register 2register.username = UserName 3register.password = Password 4register.email = Email 5register.submit = Submit 6register.success = RegisterSuccess!
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
1<?xml version="1.0" encoding="iso-8859-1"?> 2<!DOCTYPE struts-config PUBLIC 3 "-//Apache Software Foundation//DTD Struts Configuration 1.3//EN" 4 "http://struts.apache.org/dtds/struts-config_1_3.dtd"> 5<!-- 6 Default configuration file for examples application. 7 Each module also has its own struts-config under: /WEB-INF/$MODULE/ 8 @version $Revision: 1.9 $ $Date: 2006-02-13 18:39:49 -0700 (Mon, 13 Feb 2006) $ 9--> 10<struts-config> 11 <form-beans > 12 <!—配置register.jsp中form对应的ActionFrom--> 13 <form-bean name="registerForm" type="org.apache.struts.action.DynaActionForm" > 14 <form-property name="register" type="test.register.entity.Register"/> 15 </form-bean> 16 </form-beans> 17 <!—配置对Struts Action请求的代理--> 18 <controller processorClass="org.springframework.web.struts.DelegatingRequestProcessor"/> 19 <!—配置register.jsp中form对应的Action--> 20 <action-mappings > 21 <action 22 name="registerForm" 23 path="/register" 24 scope="request" 25 type="test.register.action.RegisterAction" 26 validate="false" 27 input="register.jsp"> 28 <forward name="success" path="/registerSuccess.jsp" /> 29 </action> 30 </action-mappings> 31 32 <message-resources parameter="test.register.registermessages" /> 33 <!—配置插件，让action能访问sping容器--> 34 <plug-in 35 className="org.springframework.web.struts.ContextLoaderPlugIn"> 36 <set-property property="contextConfigLocation" 37 value="/WEB-INF/action-servlets.xml" /> 38</plug-in> 39 40</struts-config>
8. 创建实体类Register.java
1package test.register.entity;
2
3import java.io.Serializable;
4
5publicclass Register implements Serializable{
6 privatestaticfinallongserialVersionUID = 1521645755684977819L;
7 private Long id;
8 private String username;
9 private String password;
10 private String email;
11
12 public Register(){
13
14 }
15
16 public String getEmail() {
17 returnemail;
18 }
19
20 publicvoid setEmail(String email) {
21 this.email = email;
22 }
23
24 public Long getId() {
25 returnid;
26 }
27
28 publicvoid setId(Long id) {
29 this.id = id;
30 }
31
32 public String getPassword() {
33 returnpassword;
34 }
35
36 publicvoid setPassword(String password) {
37 this.password = password;
38 }
39
40 public String getUsername() {
41 returnusername;
42 }
43
44 publicvoid setUsername(String username) {
45 this.username = username;
46 }
47
48
49
50}
9.创建Hibernate映射文件，Register.hbm.xml
1<?xml version="1.0"?> 2<!DOCTYPE hibernate-mapping PUBLIC 3 "-//Hibernate/Hibernate Mapping DTD 3.0//EN" 4 "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> 5<hibernate-mapping 6 package="test.register.entity"> 7 8 <class name="Register" table="REGISTER"> 9 10 <id name="id"> 11 <generator class="native"/> 12 </id> 13 14 <property name="username" 15 not-null="true" 16 length="15" 17 column="USERNAME"/> 18 19 <property name="password" 20 not-null="true" 21 length="15" 22 column="PASSWORD"/> 23 24 <property name="email" 25 not-null="true" 26 length="15" 27 column="EMAIL"/> 28 29 </class> 30 31</hibernate-mapping>
10. 创建Spring配置文件applicationContext.xml
1<?xml version="1.0" encoding="UTF-8"?> 2<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd"> 3 4<beans> 5 6 <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 7<property name="driverClassName" value="com.mysql.jdbc.Driver"/> 8 <property name="url" value="jdbc:mysql://localhost/register"/> 9 <property name="username" value="root"/> 10 <property name="password" value="root"/> 11 </bean> 12 13 <!-- Hibernate SessionFactory --> 14 <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> 15 <property name="dataSource" ref="dataSource"/> 16 <property name="mappingDirectoryLocations"> 17 <value>classpath:test\register\entity\</value> 18 </property> 19 <property name="hibernateProperties"> 20 <props> 21 <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop> 22 <prop key="hibernate.show_sql">true</prop> 23 <prop key="hibernate.generate_statistics">true</prop> 24 </props> 25 </property> 26 </bean> 27 28 <bean id="registerDAO" class="test.register.dao.RegisterDAO"> 29 <property name="sessionFactory"> 30 <ref local="sessionFactory"/> 31 </property> 32 </bean> 33 34 <bean id="registerService" class="test.register.service.RegisterService"> 35 <property name="registerDAO"> 36 <ref local="registerDAO"/> 37 </property> 38 </bean> 39 40</beans>
11. 创建数据访问对象RegisterDAO.java
1package test.register.dao;
2
3import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
4
5import test.register.entity.Register;
6
7publicclass RegisterDAO extends HibernateDaoSupport{
8
9 public Register saveRegister(Register r){
10 try{
11 this.getHibernateTemplate().saveOrUpdate(r);
12 return r;
13 }catch (Exception e) {
14 e.printStackTrace();
15 returnnull;
16 }
17 }
18}
12.创建服务对象RegisterService.java
1package test.register.service;
2
3import test.register.dao.RegisterDAO;
4import test.register.entity.Register;
5
6publicclass RegisterService {
7 private RegisterDAO registerDAO;
8
9 publicRegisterDAO getRegisterDAO() {
10 returnregisterDAO;
11 }
12
13 publicvoid setRegisterDAO(RegisterDAO registerDAO) {
14 this.registerDAO = registerDAO;
15 }
16
17 public Register saveRegister(Register r){
18 this.getRegisterDAO().saveRegister(r);
19 return r;
20 }
21}
13. 创建web.xml
1<?xml version="1.0" encoding="UTF-8"?> 2<!DOCTYPE web-app PUBLIC 3 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" 4 "http://java.sun.com/dtd/web-app_2_3.dtd"> 5<web-app> 6<context-param> 7 <param-name>contextConfigLocation</param-name> 8 <param-value>/WEB-INF/applicationContext.xml</param-value> 9</context-param> 10<listener> 11 <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 12</listener> 13<servlet> 14 <servlet-name>action</servlet-name> 15 <servlet-class>org.apache.struts.action.ActionServlet</servlet-class> 16 <init-param> 17 <param-name>config</param-name> 18 <param-value>/WEB-INF/struts-config.xml</param-value> 19 </init-param> 20 <init-param> 21 <param-name>debug</param-name> 22 <param-value>3</param-value> 23 </init-param> 24 <init-param> 25 <param-name>detail</param-name> 26 <param-value>3</param-value> 27 </init-param> 28 <load-on-startup>0</load-on-startup> 29 </servlet> 30 31 <servlet-mapping> 32 <servlet-name>action</servlet-name> 33 <url-pattern>*.do</url-pattern> 34 </servlet-mapping> 35 36 <welcome-file-list> 37 <welcome-file>register.jsp</welcome-file> 38 </welcome-file-list> 39 40</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 {
Register r = (Register)((DynaActionForm)form).get("register");
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
<controller processorClass="org.springframework.web.struts.DelegatingRequestProcessor"/>
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：
1<?xml version="1.0" encoding="UTF-8"?> 2<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd"> 3 4<beans> 5 <bean name="/register" class="test.register.action.RegisterAction"> 6 <property name="registerService" ref="registerService"/> 7 </bean> 8</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。