验证信息

UserTest.java

代码：

/**  *  */ package com.b510.usertest;

import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader;

import com.b510.usertest.users.User;

/**  *  * @author XHW  *  * @date 2011-6-6  *  */ public class UserTest {

 /**   * @param args   */  public static void main(String[] args) {   String username="";   String password="";   //得到一个输入流   BufferedReader br=null;   br=new BufferedReader(new InputStreamReader(System.in));   try {    System.out.println("请输入用户名和密码…………");    System.out.println("用户名：");    //给username赋值    username=String.valueOf(br.readLine());    System.out.println("密码：");    //给password赋值    password=String.valueOf(br.readLine());   } catch (NumberFormatException e) {       e.printStackTrace();   } catch (IOException e) {       e.printStackTrace();   }

  User user=new User();   user.setUsername(username);   user.setPassword(password);

  DisplayResult displayResult=new DisplayResult();   String result=displayResult.result(user);    System.out.println(result);

 }

}

User.java

代码：

/**  *  */ package com.b510.usertest.users;

/**  *  * @author XHW  *  * @date 2011-6-6  *  */ public class User {

 private String username;  private String password;  /**   * @return the username   */  public String getUsername() {   return username;  }  /**   * @param username the username to set   */  public void setUsername(String username) {   this.username = username;  }  /**   * @return the password   */  public String getPassword() {   return password;  }  /**   * @param password the password to set   */  public void setPassword(String password) {   this.password = password;  } }

CheckUser.java

代码：

/**  *  */ package com.b510.usertest;

import com.b510.usertest.users.User;

/**  *  * @author XHW  *  * @date 2011-6-6  *  */ public class CheckUser {

 public boolean checkUserName(User user) {     boolean bool=false;   if(user.getUsername()!=null&&user.getUsername().equals("Hongten")){    bool=true;   }   if (user.getUsername() == null || user.getUsername().length() == 0) {   }      return bool;  }  public boolean checkPassword(User user) {     boolean bool=false;   if(user.getPassword()!=null&&user.getPassword().equals("123456")){    bool=true;   }   if (user.getPassword() == null || user.getPassword().length() == 0) {    bool=false;   }     return bool;  } }

DisplayResult.java

代码：

/**  *  */ package com.b510.usertest;

import com.b510.usertest.users.User;

/**  *  * @author XHW  *  * @date 2011-6-6  *  */ public class DisplayResult {

 public String result(User user) {   String message=null;   CheckUser checkUser = new CheckUser();   if(checkUser.checkUserName(user)&&checkUser.checkPassword(user)){    message="你通过了验证！";   }else if(!checkUser.checkPassword(user)&&!checkUser.checkUserName(user)){    message="用户名和密码错误！";   }else if(!checkUser.checkUserName(user)&&checkUser.checkPassword(user)){    message="用户名错误！";   }else if(!checkUser.checkPassword(user)&&checkUser.checkUserName(user)){    message="密码错误！";   }   return message;  } }