struts+Spring+Hibernate整合(2)
2010-12-13 09:09
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我们以把三个框架都导进来了,接上来我把JAR包给出来,如下图:
大家把多余的jar文件删除(在WEB-INF/lib下)。然后我们开始创建实体类和映射文件,我们找到“DB Browser”选项卡,如下
在我们前面建的数据库连接"mysql"上右键--Open connection...开始连接数据库。如下图:
点击那个小三角找到我们要找的库“test”,然后在库中找到我们要创建映射的表,我这里是user表,表中字段有三个,id
intege他是主键,username varchar(45) 用户名,password varchar(45)密码。
然后我们在要创建映射的表上点右键,选择“Hibernate Reverse Engineering...”弹出对话框,如下图:
按照上图配置:先选择映射文件要存放的路径(点java package
后面的那个“Browser”按钮,选择MySSH项目下的一个包,我建的包叫:com.zgh.hibernate.vo,大家也可在上图中看一下我的目录结构),然后按图钩选即可,说明上面图片中有。最后点“Next”进入下一步,如图:
在上图中选择主键生成方式,按图选择即可。点“Finish”完成。
生成两个文件在com.zgh.hibernate.vo中,如下图(包括我项目的路径情况,大家可参考):
这样实体类和其映射文件就创建完成了。我们要修改一个User.hbm.xml文件,把catalog="test"删除,否则Hibernate生成的SQL会出错。下面给出User.hbm.xml的代码,如下:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse - Hibernate Tools
-->
<hibernate-mapping>
<class name="com.zgh.hibernate.vo.User" table="user">
<id name="id" type="java.lang.Integer">
<column name="id" />
<generator class="increment" />
</id>
<property name="username" type="java.lang.String">
<column name="username" length="45" not-null="true" />
</property>
<property name="password" type="java.lang.String">
<column name="password" length="45" not-null="true" />
</property>
</class>
</hibernate-mapping>
User.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.hibernate.vo;
/** *//**
* User generated by MyEclipse - Hibernate Tools
*/
public class User implements java.io.Serializable ...{
// Fields
private Integer id;
private String username;
private String password;
// Constructors
/** *//** default constructor */
public User() ...{
}
/** *//** full constructor */
public User(String username, String password) ...{
this.username = username;
this.password = password;
}
// Property accessors
public Integer getId() ...{
return this.id;
}
public void setId(Integer id) ...{
this.id = id;
}
public String getUsername() ...{
return this.username;
}
public void setUsername(String username) ...{
this.username = username;
}
public String getPassword() ...{
return this.password;
}
public void setPassword(String password) ...{
this.password = password;
}
}
接下来我们创建Dao层,我们在com.zgh.spring.dao中创建一个接口和一类实现类:
IUserLoginDao.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.dao;
import java.util.List;
public interface IUserLoginDao ...{
List getUser(String username,String password);
}
UserLoginDao.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.dao;
import java.util.List;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
/** *//**
* 记住一定要引入org.springframework.orm.(hibernate3).support.HibernateDaoSupport
* 也就是此类的父类.
* @author zhu国辉
*
*/
public class UserLoginDao extends HibernateDaoSupport implements IUserLoginDao ...{
public List getUser(String username, String password) ...{
List users=getHibernateTemplate().find("from User u where username=? and password=?",new Object[]...{username,password});
return users;
}
}
以上是Dao层,通过Spring提供的Hibernate模板,实现持久层的操作。比单用Hibernate代码少多了,不用开启和关闭事务和session。
接下来是service层,我们会把事务添加到这层里,这一层一般会把Action中Form的数据转换成实体类给Dao层用,但本例只做登陆,没有体现出来。
我们在com.zgh.spring.service包中创建一个接口和一个实现类。IUserLoginService.java接口代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.service;
import java.util.List;
public interface IUserLoginService ...{
List getUser(String username,String password);
}
UserLoginService.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.service;
import java.util.List;
import com.zgh.spring.dao.IUserLoginDao;;
public class UserLoginService implements IUserLoginService ...{
private IUserLoginDao userLoginDao;
public void setUserLoginDao(IUserLoginDao userLoginDao) ...{
this.userLoginDao = userLoginDao;
}
public List getUser(String username, String password) ...{
return userLoginDao.getUser(username, password);
}
}
接下来我们开始写Struts的程序,下一页吧,太多了。
下面我们开始创建Struts的程序,我们在WEB-INF下双击打开struts-config.xml文件,在视图中的空白处右键--New--"Form,Action
and JSP":
弹出一对话框,如下图:
此步是创建Form,在User
case中输入user,在下面添加Form的属性(点"Add"按钮添加),然后我们我们选择“JSP”选项卡,如下图:
按图中配置即可,创建的jsp文件会出现在WebRoot/jsp文件夹中(应该在WebRoot下创建个jsp文件夹),
然后点击"Next"进入下一步,如下图:
此步是创建Action,在上面输入Path,因为是登陆,这里我们输入"/login",然后确定Type中是com.zgh.struts.action.LoginAction然后点击“Forwards”选项卡,如下图:
按图中的步骤一步一步输入(或选择),先点击“Add”
(第2步)在弹出框中的“Name”中输入“success”(第4步),然后点"Browser"按钮(第5步),选择一个登陆成的的页面(第6步,这个页面应该先建好,后面会给出代码),然后点OK(第7步),然后点"Add"按钮(第8步),然后点“Close”关闭(第9步),然后点"Finish"完成(第10步)。完成。在struts-config.xml中生成视图如下:
以下是struts-config.xml的代码,如下:
<?xml version="1.0" encoding="gbk"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">
<struts-config>
<data-sources />
<form-beans >
<form-bean name="userForm" type="com.zgh.struts.form.UserForm" />
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<!-- 把type="com.zgh.struts.action.LoginAction" 改成:type="org.springframework.web.struts.DelegatingActionProxy" -->
<!-- 这样才能合Spring整合,把控制权交给Spring -->
<action
attribute="userForm"
input="/jsp/login.jsp"
name="userForm"
path="/login"
scope="request"
type="org.springframework.web.struts.DelegatingActionProxy">
<forward name="success" path="/jsp/loginSuccess.jsp" />
</action>
</action-mappings>
<message-resources parameter="com.zgh.struts.ApplicationResources" />
<!-- 添加Spring的插件 -->
<plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
<set-property property="contextConfigLocation" value="/WEB-INF/applicationContext.xml"/>
</plug-in>
</struts-config>
注意下上面的action元素的type属性,这是与Spring整合的一种方法,还有后面的plug-in是必须的,而且一定要写到最后,Struts的配置文件必须按先后顺序。
下面是LoginAction.java代码:
/**//*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
/** *//**
* @author zhu国辉
*/
package com.zgh.struts.action;
import java.util.List;
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 com.zgh.spring.service.IUserLoginService;
import com.zgh.struts.form.UserForm;
/** *//**
* MyEclipse Struts
* Creation date: 01-07-2008
*
* XDoclet definition:
* @struts.action path="/login" name="userForm" input="/jsp/login.jsp" scope="request" validate="true"
* @struts.action-forward name="success" path="/jsp/loginSuccess.jsp"
*/
public class LoginAction extends Action ...{
/**//*
* Generated Methods
*/
private IUserLoginService userLoginService;
public void setUserLoginService(IUserLoginService userLoginService) ...{
this.userLoginService = userLoginService;
}
/** *//**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) ...{
UserForm userForm = (UserForm) form;// TODO Auto-generated method stub
List users=userLoginService.getUser(userForm.getUsername(), userForm.getPassword());
if(users!=null && users.size()>0)...{
return mapping.findForward("success");
}
return mapping.getInputForward();
}
}
下面是login.jsp的代码:
<%...@ page language="java"%>
<%...@ 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 UserForm 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>
以下是loginSuccess.jsp代码:
<%...@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<%...@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>
<%...@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>Insert title here</title>
</head>
<body>
亲爱的<bean:write name="userForm" property="username"/>:
<br/>
欢迎您!
</body>
</html>
好,接下来的在下一页继续。
接下来是UserForm的代码:
/**//*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
/** *//**
* @author zhu国辉
*/
package com.zgh.struts.form;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
/** *//**
* MyEclipse Struts
* Creation date: 01-07-2008
*
* XDoclet definition:
* @struts.form name="userForm"
*/
public class UserForm extends ActionForm ...{
/**//*
* Generated fields
*/
/** *//** id property */
private String id;
/** *//** username property */
private String username;
/** *//** password property */
private String password;
/**//*
* Generated Methods
*/
/** *//**
* Method validate
* @param mapping
* @param request
* @return ActionErrors
*/
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) ...{
// TODO Auto-generated method stub
return null;
}
/** *//**
* Method reset
* @param mapping
* @param request
*/
public void reset(ActionMapping mapping, HttpServletRequest request) ...{
// TODO Auto-generated method stub
}
/** *//**
* Returns the id.
* @return String
*/
public String getId() ...{
return id;
}
/** *//**
* Set the id.
* @param id The id to set
*/
public void setId(String id) ...{
this.id = id;
}
/** *//**
* Returns the username.
* @return String
*/
public String getUsername() ...{
return username;
}
/** *//**
* Set the username.
* @param username The username to set
*/
public void setUsername(String username) ...{
this.username = username;
}
/** *//**
* Returns the password.
* @return String
*/
public String getPassword() ...{
return password;
}
/** *//**
* Set the password.
* @param password The password to set
*/
public void setPassword(String password) ...{
this.password = password;
}
}
以下是applicationContext.xml的代码:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!--==================== 数据源======================= -->
<bean id="myDataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<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>root</value>
</property>
</bean>
<!--==================== 连接工厂======================= -->
<bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="mappingResources">
<list>
<value>com/zgh/hibernate/vo/User.hbm.xml</value></list>
</property>
<property name="dataSource">
<ref bean="myDataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!--==================== DAO======================= -->
<bean id="userLoginDao" class="com.zgh.spring.dao.UserLoginDao">
<property name="sessionFactory">
<ref local="mySessionFactory"/>
</property>
</bean>
<!--====================Service======================= -->
<bean id="userLoginService" class="com.zgh.spring.service.UserLoginService">
<property name="userLoginDao">
<ref local="userLoginDao"/>
</property>
</bean>
<!--====================hibernate事务管理器======================= -->
<bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="mySessionFactory"/>
</property>
</bean>
<!--====================事务代理======================= -->
<!-- 第一个属性:transactionManager是设置事务管理器 -->
<!-- 第二个属性:target是设置要代理的对象 -->
<!-- 第三个属性:transactionAttributes是设置代理对象的方法的事务属性.这里设置的是:开启一个事务,并且是只读的(因为是查询) -->
<bean id="proxyUserLoginService" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref local="hibernateTransactionManager"/>
</property>
<property name="target">
<ref local="userLoginService"/>
</property>
<property name="transactionAttributes">
<props>
<prop key="getUser*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
<!--====================Action======================= -->
<!-- 此时要用bean的name属性,不要用id属性 -->
<bean name="/login" class="com.zgh.struts.action.LoginAction">
<property name="userLoginService">
<ref bean="proxyUserLoginService"/>
</property>
</bean>
</beans>
上面的xml中,大部分得自己写,如有哪处不明白,留言吧,
数据源和SessionFactory是配置时创建的。下面是Web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<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>
<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>
</web-app>
下面是我的项目的结构:
最后总结:在这个项目中,通过Struts建立视图,并担任控制器角色,Spring则把整个项目的耦合度减到最小,通过Spring的aop实现声明式事务(只需在配置文件中配置),通过Spring提供的Hibernate模板,我们甚至都不用关心Session的创建与关闭.还要说明一点登陆时不要输入中文,这里面没进行转码,我会在以后补充的.
大家把多余的jar文件删除(在WEB-INF/lib下)。然后我们开始创建实体类和映射文件,我们找到“DB Browser”选项卡,如下
在我们前面建的数据库连接"mysql"上右键--Open connection...开始连接数据库。如下图:
点击那个小三角找到我们要找的库“test”,然后在库中找到我们要创建映射的表,我这里是user表,表中字段有三个,id
intege他是主键,username varchar(45) 用户名,password varchar(45)密码。
然后我们在要创建映射的表上点右键,选择“Hibernate Reverse Engineering...”弹出对话框,如下图:
按照上图配置:先选择映射文件要存放的路径(点java package
后面的那个“Browser”按钮,选择MySSH项目下的一个包,我建的包叫:com.zgh.hibernate.vo,大家也可在上图中看一下我的目录结构),然后按图钩选即可,说明上面图片中有。最后点“Next”进入下一步,如图:
在上图中选择主键生成方式,按图选择即可。点“Finish”完成。
生成两个文件在com.zgh.hibernate.vo中,如下图(包括我项目的路径情况,大家可参考):
这样实体类和其映射文件就创建完成了。我们要修改一个User.hbm.xml文件,把catalog="test"删除,否则Hibernate生成的SQL会出错。下面给出User.hbm.xml的代码,如下:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
Mapping file autogenerated by MyEclipse - Hibernate Tools
-->
<hibernate-mapping>
<class name="com.zgh.hibernate.vo.User" table="user">
<id name="id" type="java.lang.Integer">
<column name="id" />
<generator class="increment" />
</id>
<property name="username" type="java.lang.String">
<column name="username" length="45" not-null="true" />
</property>
<property name="password" type="java.lang.String">
<column name="password" length="45" not-null="true" />
</property>
</class>
</hibernate-mapping>
User.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.hibernate.vo;
/** *//**
* User generated by MyEclipse - Hibernate Tools
*/
public class User implements java.io.Serializable ...{
// Fields
private Integer id;
private String username;
private String password;
// Constructors
/** *//** default constructor */
public User() ...{
}
/** *//** full constructor */
public User(String username, String password) ...{
this.username = username;
this.password = password;
}
// Property accessors
public Integer getId() ...{
return this.id;
}
public void setId(Integer id) ...{
this.id = id;
}
public String getUsername() ...{
return this.username;
}
public void setUsername(String username) ...{
this.username = username;
}
public String getPassword() ...{
return this.password;
}
public void setPassword(String password) ...{
this.password = password;
}
}
接下来我们创建Dao层,我们在com.zgh.spring.dao中创建一个接口和一类实现类:
IUserLoginDao.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.dao;
import java.util.List;
public interface IUserLoginDao ...{
List getUser(String username,String password);
}
UserLoginDao.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.dao;
import java.util.List;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
/** *//**
* 记住一定要引入org.springframework.orm.(hibernate3).support.HibernateDaoSupport
* 也就是此类的父类.
* @author zhu国辉
*
*/
public class UserLoginDao extends HibernateDaoSupport implements IUserLoginDao ...{
public List getUser(String username, String password) ...{
List users=getHibernateTemplate().find("from User u where username=? and password=?",new Object[]...{username,password});
return users;
}
}
以上是Dao层,通过Spring提供的Hibernate模板,实现持久层的操作。比单用Hibernate代码少多了,不用开启和关闭事务和session。
接下来是service层,我们会把事务添加到这层里,这一层一般会把Action中Form的数据转换成实体类给Dao层用,但本例只做登陆,没有体现出来。
我们在com.zgh.spring.service包中创建一个接口和一个实现类。IUserLoginService.java接口代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.service;
import java.util.List;
public interface IUserLoginService ...{
List getUser(String username,String password);
}
UserLoginService.java代码:
/** *//**
* @author zhu国辉
*/
package com.zgh.spring.service;
import java.util.List;
import com.zgh.spring.dao.IUserLoginDao;;
public class UserLoginService implements IUserLoginService ...{
private IUserLoginDao userLoginDao;
public void setUserLoginDao(IUserLoginDao userLoginDao) ...{
this.userLoginDao = userLoginDao;
}
public List getUser(String username, String password) ...{
return userLoginDao.getUser(username, password);
}
}
接下来我们开始写Struts的程序,下一页吧,太多了。
下面我们开始创建Struts的程序,我们在WEB-INF下双击打开struts-config.xml文件,在视图中的空白处右键--New--"Form,Action
and JSP":
弹出一对话框,如下图:
此步是创建Form,在User
case中输入user,在下面添加Form的属性(点"Add"按钮添加),然后我们我们选择“JSP”选项卡,如下图:
按图中配置即可,创建的jsp文件会出现在WebRoot/jsp文件夹中(应该在WebRoot下创建个jsp文件夹),
然后点击"Next"进入下一步,如下图:
此步是创建Action,在上面输入Path,因为是登陆,这里我们输入"/login",然后确定Type中是com.zgh.struts.action.LoginAction然后点击“Forwards”选项卡,如下图:
按图中的步骤一步一步输入(或选择),先点击“Add”
(第2步)在弹出框中的“Name”中输入“success”(第4步),然后点"Browser"按钮(第5步),选择一个登陆成的的页面(第6步,这个页面应该先建好,后面会给出代码),然后点OK(第7步),然后点"Add"按钮(第8步),然后点“Close”关闭(第9步),然后点"Finish"完成(第10步)。完成。在struts-config.xml中生成视图如下:
以下是struts-config.xml的代码,如下:
<?xml version="1.0" encoding="gbk"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">
<struts-config>
<data-sources />
<form-beans >
<form-bean name="userForm" type="com.zgh.struts.form.UserForm" />
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<!-- 把type="com.zgh.struts.action.LoginAction" 改成:type="org.springframework.web.struts.DelegatingActionProxy" -->
<!-- 这样才能合Spring整合,把控制权交给Spring -->
<action
attribute="userForm"
input="/jsp/login.jsp"
name="userForm"
path="/login"
scope="request"
type="org.springframework.web.struts.DelegatingActionProxy">
<forward name="success" path="/jsp/loginSuccess.jsp" />
</action>
</action-mappings>
<message-resources parameter="com.zgh.struts.ApplicationResources" />
<!-- 添加Spring的插件 -->
<plug-in className="org.springframework.web.struts.ContextLoaderPlugIn">
<set-property property="contextConfigLocation" value="/WEB-INF/applicationContext.xml"/>
</plug-in>
</struts-config>
注意下上面的action元素的type属性,这是与Spring整合的一种方法,还有后面的plug-in是必须的,而且一定要写到最后,Struts的配置文件必须按先后顺序。
下面是LoginAction.java代码:
/**//*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
/** *//**
* @author zhu国辉
*/
package com.zgh.struts.action;
import java.util.List;
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 com.zgh.spring.service.IUserLoginService;
import com.zgh.struts.form.UserForm;
/** *//**
* MyEclipse Struts
* Creation date: 01-07-2008
*
* XDoclet definition:
* @struts.action path="/login" name="userForm" input="/jsp/login.jsp" scope="request" validate="true"
* @struts.action-forward name="success" path="/jsp/loginSuccess.jsp"
*/
public class LoginAction extends Action ...{
/**//*
* Generated Methods
*/
private IUserLoginService userLoginService;
public void setUserLoginService(IUserLoginService userLoginService) ...{
this.userLoginService = userLoginService;
}
/** *//**
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
*/
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) ...{
UserForm userForm = (UserForm) form;// TODO Auto-generated method stub
List users=userLoginService.getUser(userForm.getUsername(), userForm.getPassword());
if(users!=null && users.size()>0)...{
return mapping.findForward("success");
}
return mapping.getInputForward();
}
}
下面是login.jsp的代码:
<%...@ page language="java"%>
<%...@ 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 UserForm 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>
以下是loginSuccess.jsp代码:
<%...@ page language="java" contentType="text/html; charset=GBK"
pageEncoding="GBK"%>
<%...@ taglib uri="http://jakarta.apache.org/struts/tags-bean" prefix="bean"%>
<%...@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=GBK">
<title>Insert title here</title>
</head>
<body>
亲爱的<bean:write name="userForm" property="username"/>:
<br/>
欢迎您!
</body>
</html>
好,接下来的在下一页继续。
接下来是UserForm的代码:
/**//*
* Generated by MyEclipse Struts
* Template path: templates/java/JavaClass.vtl
*/
/** *//**
* @author zhu国辉
*/
package com.zgh.struts.form;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionMapping;
/** *//**
* MyEclipse Struts
* Creation date: 01-07-2008
*
* XDoclet definition:
* @struts.form name="userForm"
*/
public class UserForm extends ActionForm ...{
/**//*
* Generated fields
*/
/** *//** id property */
private String id;
/** *//** username property */
private String username;
/** *//** password property */
private String password;
/**//*
* Generated Methods
*/
/** *//**
* Method validate
* @param mapping
* @param request
* @return ActionErrors
*/
public ActionErrors validate(ActionMapping mapping,
HttpServletRequest request) ...{
// TODO Auto-generated method stub
return null;
}
/** *//**
* Method reset
* @param mapping
* @param request
*/
public void reset(ActionMapping mapping, HttpServletRequest request) ...{
// TODO Auto-generated method stub
}
/** *//**
* Returns the id.
* @return String
*/
public String getId() ...{
return id;
}
/** *//**
* Set the id.
* @param id The id to set
*/
public void setId(String id) ...{
this.id = id;
}
/** *//**
* Returns the username.
* @return String
*/
public String getUsername() ...{
return username;
}
/** *//**
* Set the username.
* @param username The username to set
*/
public void setUsername(String username) ...{
this.username = username;
}
/** *//**
* Returns the password.
* @return String
*/
public String getPassword() ...{
return password;
}
/** *//**
* Set the password.
* @param password The password to set
*/
public void setPassword(String password) ...{
this.password = password;
}
}
以下是applicationContext.xml的代码:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<!--==================== 数据源======================= -->
<bean id="myDataSource"
class="org.apache.commons.dbcp.BasicDataSource">
<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>root</value>
</property>
</bean>
<!--==================== 连接工厂======================= -->
<bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="mappingResources">
<list>
<value>com/zgh/hibernate/vo/User.hbm.xml</value></list>
</property>
<property name="dataSource">
<ref bean="myDataSource" />
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!--==================== DAO======================= -->
<bean id="userLoginDao" class="com.zgh.spring.dao.UserLoginDao">
<property name="sessionFactory">
<ref local="mySessionFactory"/>
</property>
</bean>
<!--====================Service======================= -->
<bean id="userLoginService" class="com.zgh.spring.service.UserLoginService">
<property name="userLoginDao">
<ref local="userLoginDao"/>
</property>
</bean>
<!--====================hibernate事务管理器======================= -->
<bean id="hibernateTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="mySessionFactory"/>
</property>
</bean>
<!--====================事务代理======================= -->
<!-- 第一个属性:transactionManager是设置事务管理器 -->
<!-- 第二个属性:target是设置要代理的对象 -->
<!-- 第三个属性:transactionAttributes是设置代理对象的方法的事务属性.这里设置的是:开启一个事务,并且是只读的(因为是查询) -->
<bean id="proxyUserLoginService" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
<property name="transactionManager">
<ref local="hibernateTransactionManager"/>
</property>
<property name="target">
<ref local="userLoginService"/>
</property>
<property name="transactionAttributes">
<props>
<prop key="getUser*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
<!--====================Action======================= -->
<!-- 此时要用bean的name属性,不要用id属性 -->
<bean name="/login" class="com.zgh.struts.action.LoginAction">
<property name="userLoginService">
<ref bean="proxyUserLoginService"/>
</property>
</bean>
</beans>
上面的xml中,大部分得自己写,如有哪处不明白,留言吧,
数据源和SessionFactory是配置时创建的。下面是Web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.4" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<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>
<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>
</web-app>
下面是我的项目的结构:
最后总结:在这个项目中,通过Struts建立视图,并担任控制器角色,Spring则把整个项目的耦合度减到最小,通过Spring的aop实现声明式事务(只需在配置文件中配置),通过Spring提供的Hibernate模板,我们甚至都不用关心Session的创建与关闭.还要说明一点登陆时不要输入中文,这里面没进行转码,我会在以后补充的.
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