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基於struts2和hibernate的登錄和注冊功能——完整實例

本文轉載自   查看原文   2016-07-21 16:11   16810    Hibernate

 

1、該項目使用MySQL數據庫，數據庫名為test，表名info，如圖所示：

 

2、配置web.xml（Struts2使用）

 

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 
    xmlns="http://java.sun.com/xml/ns/javaee" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
    http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    
    
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

 

 

 3、編寫視圖組件（JSP頁面）

(1)登錄頁面　login.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title><s:text name="基於SH的登錄注冊系統" /></title>
</head>
<body bgcolor="#CCCCFF">
    <s:form action="login" method="post">
        <br><br><br><br><br><br>
        <table border="1" align="center" bgcolor="AABBCCDD">
            <tr>
                <td>
                    <s:textfield name="userName" label="用戶名字" size="16" />
                </td>
            </tr>
            <tr>
                <td>
                    <s:password name="password" label="用戶密碼" size="18" />
                </td>
            </tr>
            <tr>
                <td colspan="2" align="center">
                    <s:submit value="登錄" />
                </td>
            </tr>
            <tr>
                <td colspan="2" align="center">
                    <s:a href="http://localhost:8080/hibernate01/register.jsp">注冊</s:a>
                </td>
            </tr>
    
        </table>
    
    </s:form>
    
    
    
</body>
</html>

 

(2)登陸成功頁面　success.jsp

<%@ 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 bgcolor="#CCCCFF">
    <hr>
    <table>
        <tr>
            <td>
                歡迎<s:property value="userName"/>,登陸成功！
            </td>
        </tr>
    
    </table>
    <hr>
    
</body>
</html>

 

(3)注冊頁面　register.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body bgcolor="#CCCCFF">
    <s:form action="register" method="post">
        <br><br><br><br><br><br>
        <table border="1" align="center" bgcolor="AABBCCDD">
            <tr>
                <td>
                    <s:textfield name="userName" label="用戶名字" size="16" />
                </td>
            </tr>
            <tr>
                <td>
                    <s:password name="password1" label="用戶密碼" size="18" />
                </td>
            </tr>
            <tr>
                <td>
                    <s:password name="password2" label="再次輸入密碼" size="18" />
                </td>
            </tr>
            <tr>
                <td colspan="2" align="center">
                    <input type="submit" value="提交" />&nbsp;&nbsp;
                    <input type="reset" value="清空" />
                </td>
            </tr>
            <tr>
                <td colspan="2" align="center">
                    <s:a href="http://localhost:8080/hibernate01/login.jsp">返回</s:a>
                </td>
            </tr>
    
        </table>
    
    </s:form>
    


</body>
</html>

 

 

4、業務控制器Action

 

(1)登錄頁面對應的業務控制器LoginAction.java

 

其中，重寫valiadate()方法，進行手工驗證

package loginRegisterAction;

import java.util.List;

import loginRegisterDao.LoginRegisterInfo;

import PO.UserInfoPO;

import com.opensymphony.xwork2.ActionSupport;

public class LoginAction extends ActionSupport{

    private String userName;
    private String password;
    private String message="error";
    private List list;
    
    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;
    }
    
    public void validate(){
        if(this.getUserName()==null||this.getUserName().length()==0){
            addFieldError("userName", "用戶名不能為空!");
        }else{
            LoginRegisterInfo info= new LoginRegisterInfo();
            list=info.queryInfo("userName", this.getUserName());
            if(list.size()==0){
                addFieldError("userName", "該用戶尚未注冊");
            }else{
                UserInfoPO ui=new UserInfoPO();
                for(int i=0;i<list.size();i++){
                    ui=(UserInfoPO) list.get(i);
                    if(this.getUserName().equals(ui.getUserName())){
                        if(ui.getPassword().equals(this.getPassword())){
                            message=SUCCESS;
                        }else{
                            addFieldError("password", "登錄密碼不正確");
                        }
                    }
                }
            }
        }
    }
    
    public String execute() throws Exception{
        return message;
    }
    
}

 

 

(2)注冊頁面對應的業務控制器RegisterAction.java

package loginRegisterAction;

import java.util.List;

import loginRegisterDao.LoginRegisterInfo;

import PO.UserInfoPO;

import com.opensymphony.xwork2.ActionSupport;

public class RegisterAction extends ActionSupport {

    private String userName;
    private String password1;
    private String password2;
    private String mess=ERROR;    //ERROR等同於"error"
    private List list;
    
    public String getUserName() {
        return userName;
    }
    public void setUserName(String userName) {
        this.userName = userName;
    }
    public String getPassword1() {
        return password1;
    }
    public void setPassword1(String password1) {
        this.password1 = password1;
    }
    public String getPassword2() {
        return password2;
    }
    public void setPassword2(String password2) {
        this.password2 = password2;
    }
    
    public void validate(){
        if(this.getUserName()==null||this.getUserName().length()==0){
            addFieldError("userName", "用戶名不能為空！");
        }else{
            LoginRegisterInfo info= new LoginRegisterInfo();
            list=info.queryInfo("userName", this.getUserName());
            UserInfoPO ui=new UserInfoPO();
            for(int i=0;i<list.size();i++){
                ui=(UserInfoPO) list.get(i);
                if(ui.getUserName().equals(this.getUserName())){
                    addFieldError("userName", "用戶名已存在！");
                }
            }
        }
        if(this.getPassword1()==null||this.getPassword1().length()==0){
            addFieldError("password1", "登錄密碼不許為空！");
        }else if(this.getPassword2()==null||this.getPassword2().length()==0){
            addFieldError("password2", "重復密碼不許為空！");
        }else if(!this.getPassword1().equals(this.getPassword2())){
            addFieldError("password2", "兩次密碼不一致！");
        }
    }
    
    public UserInfoPO userInfo(){
        UserInfoPO info=new UserInfoPO();
        info.setUserName(this.getUserName());
        info.setPassword(this.getPassword1());
        return info;
    }
    
    public String execute() throws Exception{
        LoginRegisterInfo lr=new LoginRegisterInfo();
        String ri=lr.saveInfo(userInfo());
        if(ri.equals("success")){
            mess=SUCCESS;
        }
        
        return mess;
    }
    
}

 

5、在struts.xml中配置Action

<!DOCTYPE struts PUBLIC
    "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
    "http://struts.apache.org/dtds/struts-2.0.dtd">
 
<struts>
    <package name="default" extends="struts-default">
        <action name="register" class="loginRegisterAction.RegisterAction">
            <result name="success">/login.jsp</result>
            <result name="input">/register.jsp</result>
            <result name="error">/register.jsp</result>
        </action>
        <action name="login" class="loginRegisterAction.LoginAction">
            <result name="success">/success.jsp</result>
            <result name="input">/login.jsp</result>
            <result name="error">/login.jsp</result>
        </action>
    </package>
</struts>

 

6、Hibernate的配置文件

使用Hibernate需要通過Hibernate的配置文件加載數據庫驅動以及與數據建立連接，配置文件為hibernate.cfg.xml 

 

<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
    <session-factory>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=utf-8</property>
        <property name="connection.username">root</property>
        <property name="connection.password"></property>
        <!-- 指定數據庫的方言 -->
        <property name="dialect">org.hibernate.dialect.MySQL5Dialect</property>
        <!-- 加入映射文件 -->
        <mapping resource="PO/UserInfoPO.hbm.xml"/>
        
    </session-factory>
</hibernate-configuration>

 

 7、加載上面Hibernate配置文件的類(HIbernateSessionFactory.java)

package addHibernateFile;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateSessionFactory {

    private SessionFactory sessionFactory;
    
    public HibernateSessionFactory(){
        
    }
    
    public SessionFactory config(){
        try{
            Configuration configuration= new Configuration();
            Configuration configure=configuration.configure("hibernate.cfg.xml");
            return configure.buildSessionFactory();
        }catch(Exception e){
        e.getMessage();
        return null;
        }
    }
    
    public Session getSession(){
        sessionFactory=config();
        return sessionFactory.openSession();
    }
    
}

 

8、PO對象以及對應的映射文件(在同一個包下)

(1)PO對象的類UserInfoPO.Java

package PO;
/*
 * PO對象(持久化對象)的類，與數據庫相對應
 */
public class UserInfoPO {

    private int id;
    private String userName;
    private String password;
    
    public int getId() {
        return id;
    }
    public void setId(int 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;
    }
    
    
    
    
}

 

(2) PO對應的映射文件UserInfoPO.hbm.xml

 

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">

<!-- 映射文件的根元素 -->
<hibernate-mapping>

    <!-- 配置PO對象與數據庫中表的對應關系使用class元素，name配置PO對象對應的類，
         table配置該PO對象在數據庫中對應的表名，catalog配置表對應的數據庫名 -->
    <class name="PO.UserInfoPO" table="info" catalog="test">

        <!-- id元素配置PO對象與數據庫中表的對應id字段，name配置PO對象對應的屬性，type指定類型
             generator元素將主鍵自動加入序列 -->
        <id name="id" type="int">
            <column name="id"/>
            <generator class="assigned" />
        </id>
        
        <property name="userName" type="string">
            <column name="userName" length="30" not-null="true" />
        </property>
        
        <property name="password" type="string">
            <column name="password" length="30" not-null="true" />
        </property>
    
    </class>

</hibernate-mapping>

 

9、完成登錄和注冊業務功能

將登錄和注冊業務功能封裝到類LoginRegisterInfo(JavaBean)中

數據庫操作類LoginRegisterInfo.java:

 

package loginRegisterDao;
/*
 * 登錄和注冊業務功能，封裝到這個JavaBean
 */
import java.util.List;

import javax.swing.JOptionPane;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;

import PO.UserInfoPO;
import addHibernateFile.HibernateSessionFactory;

public class LoginRegisterInfo {

    private Session session;
    private Transaction transaction;
    private Query query;
    HibernateSessionFactory getSession;
    
    public LoginRegisterInfo(){
    }
    
    public String saveInfo(UserInfoPO info){
        String mess="error";
        getSession=new HibernateSessionFactory();
        session=getSession.getSession();
        try{
            transaction=session.beginTransaction();
            session.save(info);
            transaction.commit();
            mess="success";
            return mess;
        }catch(Exception e){
            message("RegisterInfo.error:"+e);
            e.printStackTrace();
            return null;
        }
    }
    
    public List queryInfo(String type,Object value){
        getSession=new HibernateSessionFactory();
        session=getSession.getSession();
        try{
            String hqlsql="from UserInfoPO as u where u.userName=?";
            query=session.createQuery(hqlsql);
            query.setParameter(0, value);
            List list=query.list();
            transaction=session.beginTransaction();
            transaction.commit();
            return list;
        }catch(Exception e){
            message("LoginRegisterInfo類中有異常，異常為：:"+e);
            e.printStackTrace();
            return null;
            }
    }
    
    
    public void message(String mess){
        int type=JOptionPane.YES_NO_OPTION;
        String title="提示信息";
        JOptionPane.showMessageDialog(null, mess,title,type);
    }
    
}

 


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