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struts+hibernate+spring简单登录实例

2008-03-22 10:36 501 查看
[align=left]环境:Windows2003&jdk1.5.05&Eclipse3.1+MyEclipse4.03 [/align]
[align=left] [/align]
[align=left]做一登录练习。[/align]

[align=left]现已经完成了login的struts部份,实现了动态ActionForm和动态validator验证,详细全部文件内容如下: [/align]

struts-config.xml

[align=left]<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd"> [/align]

[align=left] <struts-config>
<data-sources />
<form-beans >
<form-bean name="loginForm" type="org.apache.struts.validator.DynaValidatorForm">
<form-property name="password" type="java.lang.String" />
<form-property name="username" type="java.lang.String" />
</form-bean> [/align]

[align=left] </form-beans> [/align]

[align=left] <global-exceptions />
<global-forwards >
<forward name="indexGo" path="/index.jsp" /> [/align]
[align=left] </global-forwards> [/align]

[align=left] <action-mappings >
<action
attribute="loginForm"
input="/login.jsp"
name="loginForm"
path="/login"
scope="request"
validate="true"
type="com.test.struts.action.LoginAction" /> [/align]
[align=left] </action-mappings> [/align]

[align=left] <message-resources parameter="com.test.struts.ApplicationResources" />
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames" value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml" />
</plug-in>
</struts-config> [/align]

[align=left]login.jsp[/align]

[align=left]<%@ page language="java" contentType="text/html; charset=UTF-8"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>
<%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>

<html>
<head>
<title>JSP for loginForm form</title>
</head>
<body>
<html:form action="/login">
username : <html:text property="username"/><html:errors property="username"/><br/>
password : <html:password property="password"/><html:errors property="password"/><br/>
<html:submit/><html:cancel/>
</html:form>
</body>
</html> [/align]

[align=left]index.jsp[/align]

[align=left]<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>

<body>
<a href="login.jsp">Login</a>
</body>
</html> [/align]

[align=left]LoginAction.java[/align]

[align=left]//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_4.0.1/xslt/JavaClass.xsl [/align]

[align=left]package com.test.struts.action; [/align]

[align=left]import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; [/align]

[align=left]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.validator.DynaValidatorForm; [/align]

[align=left]/**
* MyEclipse Struts
* Creation date: 10-27-2005
*
* XDoclet definition:
* @struts.action path="/login" name="loginForm" input="login.jsp" scope="request" validate="true"
*/
public class LoginAction extends Action { [/align]

[align=left] // --------------------------------------------------------- Instance Variables [/align]

[align=left] // --------------------------------------------------------- Methods [/align]

[align=left] /**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
DynaValidatorForm loginForm = (DynaValidatorForm) form;
// TODO Auto-generated method stub
String username=(String)loginForm.get("username");
String password=(String)loginForm.get("password");
loginForm.set("password",null);
if(username.equals("sonic")||password.equals("sonic")){
System.out.println("AAA");
return mapping.findForward("indexGo");
}
else {
System.out.println("BBB");
return mapping.getInputForward();
}
} [/align]

[align=left]} [/align]

[align=left]ApplicationResources.properties[/align]

[align=left]prompt.username=User Name
prompt.password=User Password [/align]

[align=left]errors.required={0} is required. [/align]

[align=left]ApplicationResources_zh_CN.properties[/align]

[align=left]prompt.username=用户名称
prompt.password=登录密码 [/align]

[align=left]errors.required={0} 是必须的. [/align]

[align=left]validation.xml[/align]

[align=left]<form-validation>
<formset>
<form name="loginForm">
<field property="username" depends="required">
<arg0 key="prompt.username" />
</field>
<field property="password" depends="required">
<arg0 key="prompt.password" />
</field>
</form>
</formset>
</form-validation> [/align]

[align=left]到此已经完成了全部代码! [/align]

[align=left]********************************************************************[/align]
[align=left]现在创建spring框架 [/align]

[align=left]配置struts-config.xml文件,添加(spring)的插件 [/align]

[align=left]<plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
<set-property property="contextConfigLocation" value="/WEB-INF/applicationContext.xml" />
</plug-in>[/align]

[align=left]修改LoginAction配置[/align]

[align=left]原:[/align]

[align=left]<action
attribute="loginForm"
input="/login.jsp"
name="loginForm"
path="/login"
scope="request"
validate="true"
type="com.test.struts.action.LoginAction" />[/align]
[align=left]</action-mappings>[/align]

[align=left]改为:[/align]

[align=left]<action
attribute="loginForm"
input="/login.jsp"
name="loginForm"
path="/login"
scope="request"
validate="true"
type="org.springframework.web.struts.DelegatingActionProxy" />[/align]

[align=left] </action-mappings>[/align]

[align=left]绿色字体部份为修改内容[/align]

[align=left]这里将使用spring的代理器来对Action进行控制[/align]

[align=left]当提交到/login.do是将控制权交给了spring,然后由spring来决定是否转回到struts的Action [/align]

[align=left]现在来配置spring [/align]

[align=left]<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> [/align]

[align=left]<beans>
<bean name="/login" class="net.xiaxin.action.LoginAction" singleton="false"></bean>
</beans>[/align]

[align=left]绿色字体是关于转交控制权的配置内容属性singleton="false",指明了Action 的实例获取方式为每次重新创建。解决了Struts中令人诟病的线程安全问题(Struts中,由一个Action实例处理所有的请求,这就导致了类公用资源在并发请求中的线程同步问题。)(摘自spring开发指南) [/align]

[align=left]建立数据库在 这里我使用的是mysql4.1.1x[/align]

[align=left]CREATE TABLE `user` (
`ID` int(11) NOT NULL auto_increment,
`USERNAME` varchar(50) NOT NULL default '',
`PASSWORD` varchar(50) NOT NULL default '',
PRIMARY KEY (`ID`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1; [/align]

[align=left]创建Hibernate框架[/align]

[align=left]使用MyEclipse的数据Database Explorer工具创建User.hmb.xml、AbstractUser.java、User.java映射文件 [/align]

[align=left]创建完成后可以将自动生成的hibernate.cfg.xml删除 [/align]

[align=left]创建UserDAO.java、UserDAOImp.java[/align]

[align=left]修改LoginAction.java文件,使用userDao的方法来进行用户验证 [/align]

[align=left]package com.test.struts.action; [/align]

[align=left]import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; [/align]

[align=left]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.validator.DynaValidatorForm; [/align]

[align=left]import com.test.UserDAO;[/align]

[align=left]
public class LoginAction extends Action { [/align]
[align=left] public UserDAO getUserDAO() {
return userDAO;
}[/align]

[align=left] public void setUserDAO(UserDAO userDAO) {
this.userDAO = userDAO;
}[/align]

[align=left] public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
DynaValidatorForm loginForm = (DynaValidatorForm) form;
// TODO Auto-generated method stub
String username = (String) loginForm.get("username");
String password = (String) loginForm.get("password");
loginForm.set("password", null);
if (userDAO.isValidUser(username,password)) {
return mapping.findForward("indexGo");
} else {
return mapping.getInputForward();
}
} [/align]

[align=left]}
绿色字体为修改部份 [/align]

[align=left]现在剩下最后的spring配置了 [/align]

[align=left]<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> [/align]

[align=left]<beans>
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName">
<value>com.mysql.jdbc.Driver</value>
</property>
<property name="url">
<value>jdbc:mysql://localhost:3306/test</value>
</property>
<property name="username">
<value>root</value>
</property>
<property name="password">
<value></value>
</property>
</bean> [/align]

[align=left] <bean id="sessionFactory" class="org.springframework.orm.hibernate.LocalSessionFactoryBean">
<property name="dataSource">
<ref local="dataSource" />
</property>
<property name="mappingResources">
<list>
<value>com/test/Hibernate/User.hbm.xml</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">net.sf.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean> [/align]

[align=left] <bean id="transactionManager" class="org.springframework.orm.hibernate.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean> [/align]

[align=left] <bean id="userDAO" class="com.test.UserDAOImp">
<property name="sessionFactory">
<ref local="sessionFactory" />
</property>
</bean> [/align]

[align=left] <bean id="userDAOProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref bean="transactionManager" />
</property>
<property name="target">
<ref local="userDAO" />
</property>
<property name="transactionAttributes">
<props>
<prop key="insert*">PROPAGATION_REQUIRED</prop>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
<prop key="is*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean> [/align]
[align=left][/align]
[align=left]<bean name="/login" class="com.test.struts.action.LoginAction" singleton="false">
<property name="userDAO">
<ref bean="userDAOProxy" />
</property>
</bean>
</beans> [/align]

[align=left]现在可以进行测试了![/align]

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