Structs2+Hibernate 简单登录验证实例

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Structs2 和 Hibernate 简单登录验证实例

版本信息

Structs版本 2.3.31
Hibernate版本 4.3.11
Tomcat 8.0
JDK 1.8
Eclipse版本 Neon.1a Release (4.6.1)
Eclipse插件JBoss Tools 4.4.1
数据库 MySQL

案例

综合Structs 和 Hibernate，Structs 做页面跳转，Hibernate代替JDBC执行数据库的操作，登录就是条件查询，注册就是添加数据

Jar包，我会发源码

配置Structs环境

必不可缺的文件，直接给出源代码，下面就写这些文件了
数据库，root ，root，要先建立数据库，我建的数据库名为 sh
web.xml

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
  <display-name>StructsAndHibernateTestdisplay-name>
  <filter>
  <filter-name>struts2filter-name>
  <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilterfilter-class>
 filter>
 <filter-mapping>
  <filter-name>struts2filter-name>
  <url-pattern>/*url-pattern>
 filter-mapping>
  <welcome-file-list>
    <welcome-file>index.jspwelcome-file>
  welcome-file-list>
web-app>

struts.xml

<struts>

    <package name="default" namespace="/" extends="struts-default">

        <action name="user_login" method="login" class="jxust.action.UserAction">
            <result>/success.jspresult>
            <result name="input">/index.jspresult>
            <result name="registersuccess">/index.jspresult>
        action>
        <action name="user_register" method="register" class="jxust.action.UserAction">
            <result>/index.jspresult>
            <result name="input">/register.jspresult>

        action>     
    package>
struts>

配置 Hibernate 环境

Hibernate.cfg.xml

<hibernate-configuration>
    <session-factory>
         <property name="connection.username">rootproperty>
        <property name="connection.password">rootproperty>
        <property name="connection.driver_class">com.mysql.jdbc.Driverproperty>
        <property name="connection.url">jdbc:mysql://127.0.0.1:3306/sh?useUnicod=true&characterEncoding=utf8property>
        <property name="dialect">org.hibernate.dialect.MySQLDialectproperty>

        <property name="show_sql">trueproperty>
        <property name="format_sql">trueproperty>
        <property name="hbm2ddl.auto">updateproperty>

    
       <mapping resource="jxust/model/User.hbm.xml"/> 
    session-factory>
hibernate-configuration>

User.hbm.xml

<hibernate-mapping>
    <class name="jxust.model.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" />
        property>
        <property name="password" type="java.lang.String">
            <column name="PASSWORD" />
        property>
    class>
hibernate-mapping>

源代码

源代码顺序是按包从上到下
源代码下载：http://download.csdn.net/detail/peng_hong_fu/9686886

jxust.action包

UserAction.java

package jxust.action;

import java.util.Map;

import org.apache.struts2.interceptor.SessionAware;

import com.opensymphony.xwork2.ActionSupport;

import jxust.dao.impl.UserDaoImpl;
import jxust.model.User;

@SuppressWarnings("serial")
public class UserAction extends ActionSupport implements SessionAware {
    private String username;
    private String password;
    UserDaoImpl dao = new UserDaoImpl();
    private Map session;

    public  String login(){
        System.out.println(username +","+ password);
        User user = dao.isvalidateAdmin(username, password);
        if (user != null) {
            session.put("loginusername", user.getUsername());
            return SUCCESS;
        } else {
            addFieldError("loginerror", "用户名或密码错误！");
            return INPUT;
        }
    }
    public String register(){
        User user = new User(username,password);
        dao.saveUser(user);
        return "success";   
    }
    //validate验证
    public void validate() {
        if(username==null||"".equals(username)){
            this.addFieldError("username", "用户名不能为空");
        }
        if(password==null||"".equals(password)){
            this.addFieldError("password", "密码不能为空");
        }
    }
    @Override
    public void setSession(Map session) {
        this.session = session;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

jxust.dao包

HBSessionDao.java

package jxust.dao;

import java.util.List;

import org.hibernate.Session;


public interface HBSessionDao {
    public Session getSession();
    public void closeSession();
    public List search(String hql);
}

UserDao.java

package jxust.dao;

import java.util.List;

import jxust.model.User;

public interface UserDao {
    public void saveUser(User user);
    public List getAll();
    public User isvalidateAdmin(String username,String password);
}

jxust.dao.impl包

HBSessionDaoImpl.java

package jxust.dao.impl;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;

import jxust.dao.HBSessionDao;

public class HBSessionDaoImpl implements HBSessionDao {
    private SessionFactory sessionFactory;
    private Session session;
    private Transaction transaction;


    private void init() {
        //创建配置对象
        Configuration cfg = new Configuration().configure(); 
        //创建服务注册对象
        StandardServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()  
                .applySettings(cfg.getProperties()).build(); 
       //创建会话工厂对象
        sessionFactory = cfg.buildSessionFactory(serviceRegistry);  
        //会话对象
        session =sessionFactory.openSession();
        //开启事务
        transaction = session.beginTransaction();
    }
    @Override
    public Session getSession() {
        init();
        return session;
    }

    @Override
    public void closeSession() {
        transaction.commit();//提交事务
        session.close();// 关闭对话
        sessionFactory.close();// 关闭会话工厂    
    }

    @Override
    public List search(String hql) {
        //查询不用事务管理
        Session session = null;
        session = getSession();
        List alist = null;
        alist = session.createQuery(hql).list();
        session.close();
        return alist;
    }
}

UserDaoImpl.java

package jxust.dao.impl;

import java.util.List;

import org.hibernate.Session;

import jxust.dao.HBSessionDao;
import jxust.dao.UserDao;
import jxust.model.User;

public class UserDaoImpl implements UserDao {

    @Override
    public void saveUser(User user) {
        System.out.println("添加数据...");
        HBSessionDao  hbsessionDao = new HBSessionDaoImpl();
        Session session = hbsessionDao.getSession();
        session.save(user);
        hbsessionDao.closeSession();
        System.out.println("添加数据成功...");
    }

    @SuppressWarnings("unchecked")
    @Override
    public List getAll() {
        List listuser = null;
        HBSessionDao  hbsessionDao = new HBSessionDaoImpl();
        Session session = hbsessionDao.getSession();
         listuser  = session.createQuery("from User").list();
        hbsessionDao.closeSession();//需要关闭
        return listuser;
    }

    @Override
    public User isvalidateAdmin(String username, String password) {
        HBSessionDaoImpl  hbsessionDao= new HBSessionDaoImpl();
        User user = null;
        System.out.println("查询数据库匹配数据...");

        @SuppressWarnings("unchecked")
        List list = hbsessionDao.search(
                "FROM User where username = '" + username + "' and password = '" + password + "'");
        if (list != null && list.size() > 0) {
            user = list.get(0);
            System.out.println("查询到的数据:"+user.toString());
        }
        return user;
    }

    //测试UserDaoImpl
    /* public static void main(String[] args) {
        *//**
         * 插入数据，id为自增长
         *  UserDaoImpl dao = new UserDaoImpl();
            User user1  =new User("秦天明2","12345");
            dao.saveUser(user1);
         *//*
         *//**
          *查询数据
          *UserDaoImpl dao = new UserDaoImpl();
        User user = dao.isvalidateAdmin("秦天明2","12345");
        System.out.println(user.toString());
          *//*
         //查询user表所有数据
         UserDaoImpl dao = new UserDaoImpl();
         List  list = dao.getAll();
         System.out.println("共查询到"+list.size()+"条数据");
         for(User s:list){
             System.out.println(s.toString());
         }
    }*/
}

jxust.model包

User.java

package jxust.model;
/**
 * 用户个人信息实体类
 * @author Peng
 *
 */
public class User {
    private Integer id;//id
    private String username;//用户名
    private String password;//密码


    public User() {
        super();
    }
    public User( String username, String password) {
        super();
        this.username = username;
        this.password = password;
    }
    public Integer getId() {
        return id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public String getPassword() {
        return password;
    }
    public void setPassword(String password) {
        this.password = password;
    }
    @Override
    public String toString() {
        return "User [id=" + id + ", username=" + username + ", password=" + password + "]";
    }       
}

User 类对应关系映射文件，在配置Hibernate环境时已给出

Hibernate在控制台的一些输出sql语句

添加数据：
Hibernate: 
    select
        max(ID) 
    from
        USER
Hibernate: 
    insert 
    into
        USER
        (USERNAME, PASSWORD, ID) 
    values
        (?, ?, ?)

 查询数据：      
Hibernate: 
    select
        user0_.ID as ID1_0_,
        user0_.USERNAME as USERNAME2_0_,
        user0_.PASSWORD as PASSWORD3_0_ 
    from
        USER user0_ 
    where
        user0_.USERNAME='秦天明2' 
        and user0_.PASSWORD='12345'

 查询所有：      
Hibernate: 
    select
        user0_.ID as ID1_0_,
        user0_.USERNAME as USERNAME2_0_,
        user0_.PASSWORD as PASSWORD3_0_ 
    from
        USER user0_

JSP文件

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@taglib uri="/struts-tags" prefix="s" %>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>index.jsp起始页title>
head>
<body>
   <h1>登录h1>
    <%-- "loginerror"> --%>
     <s:fielderror>s:fielderror> 
    <form action="user_login.action" method="post">
        用户名:<input type="text" name="username"/><br/>
        密  码:<input type="password" name="password"/><br/>
        <input type="submit" value="登录"/>  <a href="register.jsp"><input type="button" value="注册"/>a>
    form>
body>
html>

register.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@taglib uri="/struts-tags" prefix="s" %>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>register.jsp起始页title>
head>
<body>
 <h1>注册h1>
    <s:fielderror fieldName="registererror">s:fielderror>
    <form action="user_register.action" method="post">
        用户名:<input type="text" name="username"/><br/>
        密 码:<input type="password" name="password"/><br/>
        <input type="submit" value="注册"/><input type="reset" value="重置">
    form>
body>
html>

success.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>登录成功title>
head>
<body>
<h1>欢迎${loginusername},登录成功！h1>
body>
html>

编写过程中的错误和收获

1.没有添加数据库连接驱动名

"connection.driver_class">com.mysql.jdbc.Driver

2.解决了一个Action中，多个方法验证失败返回同一个视图的问题
我配置两个action来解决

        name="user_login" method="login" class="jxust.action.UserAction">
            <result>/success.jspresult>
            <result name="input">/index.jspresult>
            <result name="registersuccess">/index.jspresult>
        
        name="user_register" method="register" class="jxust.action.UserAction">
            <result>/index.jspresult>
            <result name="input">/register.jspresult>

        

源代码下载

http://download.csdn.net/detail/peng_hong_fu/9686886