基于struts2和hibernate实现登录和注册功能

时间：2017-11-22 编辑：猪哥来源：一聚教程网

本文实例为大家分享了struts2和hibernate实现登录和注册功能，供大家参考，具体内容如下

1、该项目使用MySQL数据库，数据库名为test，表名info，如图所示：

2、配置web.xml（Struts2使用）



  
  
    struts2
    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
  
  
    struts2
    /*
  
  
  
 
  index.jsp

3、编写视图组件（JSP页面）

(1)登录页面login.jsp

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



<s:text name="基于SH的登录注册系统" />


  
    






    
      
        
          
        
      
      
        
          
        
      
      
        
          
        
      
      
        
          注册

(2)登陆成功页面success.jsp

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




Insert title here


  
  
    
      
        欢迎,登陆成功！

(3)注册页面register.jsp

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



Insert title here


  
    






    
      
        
          
        
      
      
        
          
        
      
      
        
          
        
      
      
        
            
          
        
      
      
        
          返回

4、业务控制器Action

(1)登录页面对应的业务控制器LoginAction.java

其中，重写valiadate()方法，进行手工验证

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", "用户名不能为空!");
    }else{
      LoginRegisterInfo info= new LoginRegisterInfo();
      list=info.queryInfo("userName", this.getUserName());
      if(list.size()==0){
        addFieldError("userName", "该用户尚未注册");
      }else{
        UserInfoPO ui=new UserInfoPO();
        for(int i=0;i

(2)注册页面对应的业务控制器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等同于"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", "用户名不能为空！");
    }else{
      LoginRegisterInfo info= new LoginRegisterInfo();
      list=info.queryInfo("userName", this.getUserName());
      UserInfoPO ui=new UserInfoPO();
      for(int i=0;i

5、在struts.xml中配置Action


 

  
    
      /login.jsp
      /register.jsp
      /register.jsp
    
    
      /success.jsp
      /login.jsp
      /login.jsp

6、Hibernate的配置文件

使用Hibernate需要通过Hibernate的配置文件加载数据库驱动以及与数据建立连接，配置文件为hibernate.cfg.xml




  
    com.mysql.jdbc.Driver
    jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8
    root
    
    
    org.hibernate.dialect.MySQL5Dialect

7、加载上面Hibernate配置文件的类(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对象以及对应的映射文件(在同一个包下)

(1)PO对象的类UserInfoPO.Java

package PO;
/*
 * PO对象(持久化对象)的类，与数据库相对应
 */
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对应的映射文件UserInfoPO.hbm.xml

9、完成登录和注册业务功能

将登录和注册业务功能封装到类LoginRegisterInfo(JavaBean)中

数据库操作类LoginRegisterInfo.java:

package loginRegisterDao;
/*
 * 登录和注册业务功能，封装到这个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类中有异常，异常为：:"+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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