Eclipse用SSH框架实现登陆注册功能

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Eclipse用SSH框架实现登陆注册功能

第一次写博文，写的不好的地方还请多多指教。
关于SSH搭建大家可以看这篇博文，讲的很详细，是搭建SSH框架具有注册功能的例子http://blog.csdn.net/lpftobetheone/article/details/17783791

我也是第一次搭SSH框架参考这篇博文成功搭起来后也可以运行，但是其中的具体逻辑我还是不太懂，所以自己决定在此基础上增加登录的功能来进行摸索学习。

我先说一下每个类的功能：
dao是提供与数据库交互读取数据的接口
daoimpl是实现dao接口的
service是提供具体业务服务的接口
serviceimpl同样是实现接口的
service接口里提供了业务逻辑，serviceimpl具体实现这些业务逻辑，通过调用dao接口里的方法来读取数据库中的数据。最后在action中调用service接口里的业务逻辑，然后把从数据库中取出的数据赋给action中的属性。这样，struts2框架就能从页面中接受后台传来的数据，显示出来了。

下面来说具体过程：

大概流程：Login.jsp—->LoginAction.java—>UserManager.java中的logUser方法—>BaseDao.java中的queryObject方法
最后登录的用户名和密码是否正确是根据queryObject方法的返回值在LoginAction.java中判断的

先定义Login.jsp页面

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%@ taglib prefix="s" uri="/struts-tags"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body>     <s:form action="login" >           <s:textfield name="user.username" label="用户名" class="txt"></s:textfield>           <s:password name="user.password" label="密码" class="txt"></s:password>             <s:submit value="登录" lass="btn"></s:submit>       </s:form></body></html>

然后新建LoginAction.java

package com.ynwi.ssh.action;import com.opensymphony.xwork2.ActionSupport;import com.ynwi.ssh.forms.UserForm;import com.ynwi.ssh.service.UserManager;public class LoginAction extends ActionSupport{   private static final long serialVersionUID=1L;    private UserForm user;    private UserManager userManager;    public UserForm getUser() {        return user;    }    public void setUser(UserForm user) {        this.user = user;    }    public void setUserManager(UserManager userManager) {        this.userManager = userManager;    }    public String execute()    {        try {            //this.setUserManager(new UserManagerImpl());            boolean a=userManager.logUser(user);            if(a==true) return SUCCESS;            else return ERROR;        } catch (Exception e) {            // TODO: handle exception            e.printStackTrace();            return ERROR;        }    }}

在struct2.xml中添加action

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE struts PUBLIC    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"    "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts>    <include file="struts-default.xml"/>    <package name="ynwi" namespace="/" extends="struts-default">         <!-- 注册 -->         <action name="register" class="regAction">              <result  name="input">/Register.jsp</result>             <result  name="success">/Login.jsp</result>             <result  name="error">/Fail.jsp</result>         </action>         <!-- 登录 -->         <action name="login" class="logAction">              <result  name="input">/Login.jsp</result>             <result  name="success">/Success.jsp</result>             <result  name="error">/Fail.jsp</result>         </action>       </package></struts>

在applicationContext.xml中写用户登录action的bean

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"      xsi:schemaLocation="http://www.springframework.org/schema/beans             http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">     <!-- 定义用户数据源的信息 -->    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"          destroy-method="close">          <property name="driverClass">              <value>com.mysql.jdbc.Driver</value>          </property>          <property name="jdbcUrl">              <value>jdbc:mysql://localhost/test</value>          </property>          <property name="user">              <value>root</value>          </property>          <property name="password">              <value>199394</value>          </property>          <property name="maxPoolSize">              <value>80</value>          </property>          <property name="minPoolSize">              <value>1</value>          </property>          <property name="initialPoolSize">              <value>1</value>          </property>          <property name="maxIdleTime">              <value>20</value>          </property>      </bean>    <!--定义Hibernate的SessionFactory -->      <!-- SessionFactory使用的数据源为上面的数据源 -->      <!-- 指定了Hibernate的映射文件和配置信息 -->      <bean id="sessionFactory"          class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">          <property name="dataSource">              <ref local="dataSource" />          </property>          <property name="mappingResources">              <list>                  <value>com/ynwi/ssh/beans/User.hbm.xml</value>                  <value>com/ynwi/ssh/beans/Admin.hbm.xml</value>            </list>          </property>          <property name="hibernateProperties">              <props>                  <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>                  <prop key="show_sql">true</prop>                  <prop key="hibernate.jdbc.batch_size">20</prop>              </props>          </property>      </bean>      <bean id="transactionManager"          class="org.springframework.orm.hibernate3.HibernateTransactionManager">          <property name="sessionFactory" ref="sessionFactory" />      </bean>      <bean id="baseDao" class="com.ynwi.ssh.daoImpl.UserDao">          <property name="sessionFactory">              <ref bean="sessionFactory" />          </property>      </bean>      <!--用户注册业务逻辑类 -->      <bean id="userManager" class="com.ynwi.ssh.serviceImpl.UserManagerImpl">          <property name="dao">              <ref bean="baseDao" />          </property>      </bean>      <!-- 用户注册的Action -->      <bean id="regAction" class="com.ynwi.ssh.action.RegisterAction">          <property name="userManager">              <ref bean="userManager" />          </property>      </bean>    <!-- 用户登录的Action -->      <bean id="logAction" class="com.ynwi.ssh.action.LoginAction">          <property name="userManager">              <ref bean="userManager" />          </property>      </bean></beans>

在BaseDao.java中写登录查询的接口

package com.ynwi.ssh.dao;import java.util.List;import org.hibernate.HibernateException;import org.hibernate.Session;import com.ynwi.ssh.beans.User;import com.ynwi.ssh.beans.Event;import com.ynwi.ssh.beans.Admin;public interface BaseDao {    //注册    public void saveObject(Object obj) throws HibernateException;    //登录    public boolean queryObject(User obj) throws HibernateException;}

在UserDao中写接口的具体实现

package com.ynwi.ssh.daoImpl;import java.util.List;import org.hibernate.HibernateException;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import com.ynwi.ssh.dao.BaseDao;import com.ynwi.ssh.forms.UserForm;import com.ynwi.ssh.beans.Admin;import com.ynwi.ssh.beans.Event;import com.ynwi.ssh.beans.User;public class UserDao extends HibernateDaoSupport implements BaseDao{    //注册    @Override    public void saveObject(Object obj) throws HibernateException {        // TODO Auto-generated method stub        getHibernateTemplate().save(obj);    }    //登录    @Override    public boolean queryObject(User obj) throws HibernateException {        // TODO Auto-generated method stub          String hql="from User where username='"+obj.getUsername()+"' and password='"+obj.getPassword()+"'";          System.out.println(obj.getUsername());          System.out.println(obj.getPassword());          List userlist=this.getHibernateTemplate().find(hql);          if (userlist.size()>0)           {              System.out.println("登录成功");               return true;          }          else           {              System.out.println("登录失败");               return false;          }    }}

在UserManager.java中写登录的接口

package com.ynwi.ssh.service;import java.util.List;import com.sun.org.apache.xpath.internal.operations.Bool;import com.ynwi.ssh.forms.UserForm;import com.ynwi.ssh.forms.AdminForm;import com.ynwi.ssh.beans.Event;import com.ynwi.ssh.beans.User;public interface UserManager {    //注册    public void regUser(UserForm user);    //登录    public boolean logUser(UserForm user);}

在UserManagerImpl.java中写具体的实现

package com.ynwi.ssh.serviceImpl;import java.util.List;import org.hibernate.HibernateException;import org.springframework.beans.BeanUtils;import com.sun.org.apache.xpath.internal.operations.Bool;import com.ynwi.ssh.beans.Event;import com.ynwi.ssh.beans.User;import com.ynwi.ssh.beans.Admin;import com.ynwi.ssh.dao.BaseDao;import com.ynwi.ssh.forms.AdminForm;import com.ynwi.ssh.forms.EventForm;import com.ynwi.ssh.forms.UserForm;import com.ynwi.ssh.service.UserManager;public class UserManagerImpl  implements UserManager{    private BaseDao dao;    public void setDao(BaseDao dao)    {        this.dao=dao;    }    //注册    @Override    public void regUser(UserForm userForm) throws HibernateException {        // TODO Auto-generated method stub        User user=new User();        BeanUtils.copyProperties(userForm, user);        //session=HibernateSessionFactory.currentSession();        //dao.setSession(session);        // 获取事务         // Transaction ts = session.beginTransaction();          // 构造User对象         // User user = new User();         // user.setUsername(userForm.getUsername());        //  user.setPassword(userForm.getPassword());        //  user.setGender(userForm.getGender());          // 保存User对象          dao.saveObject(user);          // 提交事务          //ts.commit();          // 关闭Session         // HibernateSessionFactory.closeSession();    }    //登录    @Override    public boolean logUser(UserForm userForm) throws HibernateException{        // TODO Auto-generated method stub            User user=new User();            BeanUtils.copyProperties(userForm, user);            boolean a=dao.queryObject(user);            return a;    }}

至此登录功能就已经完成，我会上传我的项目ZIP，需要的小伙伴可以请点击这里下载查看，一起学习，错误的地方请指出。

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