4.1-4.4学习进度

技术进度

Java

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用于登陆的类

创建人物的类

4.1下午回家,然后4.2上午去看病,所以耽搁了一点时间,所以两天的工作合在一起发

// 面向用户的类,用于登陆用户
import java.io.Serializable;
public class Password implements Serializable  {
         private String name="";
         private String password="";
         public void setName(String name) {
            this.name = name;
         }
         public String getName() {
            return name;
        }
        public String getPassword() {
            return password;
        }
        public void setPassword(String password) {
            this.password = password;
         }
        public void show(){
            System.out.println("name:"+name+"\n"+"password:"+password);
        }
}

// 登陆时switch确定操作类型
import java.util.Scanner;
public class Select {
    String fileName = "F:/Uesr_Name.txt";   
    public void select() {
              Scanner int_sc = new Scanner(System.in);
              int select = int_sc.nextInt();
              Window wid = new Window();
              SignIn signIn = new SignIn();
              SignInCheck signIn_ck = new SignInCheck();
              while (select != 0) {
              switch( select ) {
                   case 1 : if(signIn != null){
                            signIn.signIn();
                           }
                           select = 2;
                   /*case 2:  Open op = new Open();
                            Scanner str_sc1 = new Scanner(System.in);
                            String name_check = str_sc1.nextLine();
                            op.open(name_check);
                              break;
                   */
                   case 2:  if(signIn_ck != null){
                            signIn_ck.signInCheck();
                           }
                   default: break;
              }
         }     
         int_sc.close();
    }          
}

//登陆时候,文字界面
public class Window {
        public void print() {
            System.out.println("*********************************");
            System.out.println("*\t      输入一个整数:\t\t*");
            System.out.println("*\t   1. 创建新用户  "+"\t*");
            System.out.println("*\t   2. 登陆  \t\t*");
            System.out.println("*\t   0. 退出系统  \t\t*");
            System.out.println("*********************************");
        }
}

//创建用户
import java.util.Scanner;
public class SignIn {
          String fileName = "F:/Uesr_Name.txt";   
          public void signIn() {
              System.out.println("请输入你的用户名:"+"\n");
              Scanner str_sc = new Scanner(System.in);
              Password pw = new Password();
              String name = str_sc.nextLine();
              while(name.equals("")){
                System.out.println("输入的用户名不能为空,请重新输入");
                name =str_sc.nextLine();
              }
              pw.setName(name);
              Drive.Write(fileName, name+"\r\n");
              System.out.println("请输入你的密码："+"\n");
              String password =str_sc.nextLine();
              while(password.equals("")){
                System.out.println("输入的密码不能为空,请重新输入");
                password =str_sc.nextLine();
              }
              pw.setPassword(password);
              Drive.Write(fileName, password+"\r\n");
              Saved sav = new Saved();
              sav.name = pw.getName();
              sav.save(pw);
              System.out.println("保存成功,接下来请登陆");
          }
}

// 用序列化保存用户于本地
import java.io.FileOutputStream;
import java.io.ObjectOutputStream;
public class Saved {
    String name="";
    public void save(Object obj) {
      try{       //序列化
          System.out.println("The uesr name is "+name); 
          FileOutputStream fs = new FileOutputStream(name +".ser");
          ObjectOutputStream os = new ObjectOutputStream(fs);
          os.writeObject(obj);
          os.close();
          }catch(Exception ex){
           ex.printStackTrace();
       }
    }
}

// 用户登陆
import java.util.Scanner;
public class SignInCheck {
           public void signInCheck() {
               Confirm cf = new Confirm();
               Scanner ck_str = new Scanner(System.in);
               System.out.println("请输入您的用户名和密码");
               String name_ck = ck_str.nextLine();
               String pw_ck  = ck_str.nextLine();
               cf.confirm(name_ck ,pw_ck);
           }
}

// 解序列化,验证用户
import java.io.FileInputStream;
import java.io.ObjectInputStream;
import java.util.Scanner;
public class Confirm {
    public void confirm(String name , String password) {
        try {         //解序列化
            ObjectInputStream is = new 
                    ObjectInputStream(new FileInputStream(name+".ser"));
                     //转换对象类型
            Password pw = (Password) is.readObject();
            is.close();
            String pw_ck = pw.getPassword();
            Boolean isTrue = true;
            Scanner sc = new Scanner(System.in);
            while(isTrue){
              if(pw_ck.equals(password)) {
                   System.out.println("登陆成功");
                   isTrue = false;
               }
              else{
                   System.out.println("登陆失败,请重新输入");
                   password = sc.nextLine();
               }
            }
            sc.close();
            } catch(Exception ex) {
            ex.printStackTrace();
        }
      }
}

// 启动器,有一个将用户以及密码写入本地.txt的方法
import java.io.*;
import java.util.*;
public class Drive {
    public static void main(String[] args) {
        Window wid = new Window();
        Select slc = new Select();
        wid.print();
        slc.select();
    }
    public static void Write(String fileName, String context ){
        try {  
                // 打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件  
                FileWriter writer = new FileWriter(fileName, true);                 writer.write(context);
                writer.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        } 
}

人物资料类

import java.io.Serializable;
// Person类,设定属性以及设定属性的方法
//设置一个将对象实例所有的属性集合成一个字符串的方法
public class Person implements Serializable {
      private String name;
      private int height;
      private int money;
      private int id=100;
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public int getHeight() {
        return height;
    }
    public void setHeight(int height) {
        this.height = height;
    }
    public int getMoney() {
        return money;
    }
    public void setMoney(int money) {
        this.money = money;
    }
    public String getId() {
        return id+"";
    }
    public void setId(int id) {
        this.id = id;
    }
    public String all(){
        String height0 = " 身高:"+height  ;
        String money0 = "金钱:"+money ;
        //String id0 = id + "";
        String all = "姓名:"+name +" "+ height0 +" "+ money0; 
        id++;
        return all;
    }
}

import java.util.Scanner;
// Person集合操作类
public class Unit {
    int select = 0;
    public void select() {
        String filename = "F:/person.txt";
        Scanner sc = new Scanner(System.in);
        Person ps = new Person();
        Window wid = new Window();
        wid.pPrint();
        String empty = sc.nextLine();
        select = sc.nextInt();
        while(select != 0){
            if(select == 1) {
                Create cr = new Create();
                cr.create();
                wid.pPrint();
                select = sc.nextInt();
            }
            if(select == 2) {
                System.out.println("以下是已有的人员资料");
                Read.readFileByLines(filename);
                wid.pPrint();
                select = sc.nextInt();
            }
            if(select == 3) {
            }
            if(select ==4 ) {
            }
        }
    }
}

\\ 输入人员资料类
import java.io.*;
import java.util.*;
public class Create {
       public void create() {
            Person ps = new Person();
            Scanner sc = new Scanner(System.in);
            try {         //解序列化
                  ObjectInputStream is = new 
                         ObjectInputStream(new FileInputStream("Person.ser"));
                           //转换对象类型
                  ps = (Person) is.readObject();
                  is.close();   
              } catch(Exception ex) {
                  ex.printStackTrace();
              }
            System.out.println("id:"+ps.getId());
            int id = Integer.parseInt(ps.getId());
            ps.setId(id++);
            //输入此人的名字
            System.out.println("请输入此人的名字");
            String name = sc.nextLine();
            while( name.equals("") ){
                System.out.println("输入的名字不能为空,请重新输入");
                name = sc.nextLine();
            }
            ps.setName(name);
            //输入此人的身高
            System.out.println("请输入此人的身高(cm)");
            int height = sc.nextInt();
            while( height < 0 ||height > 233) {
                System.out.println("输入的身高越界,请重新输入");
                height = sc.nextInt();
            }
            ps.setHeight(height);
            //输入此人的现金
            System.out.println("请输入此人的现金（￥）");
            int money = sc.nextInt();
            while( money <0 ){
                System.out.println("本人的现金不能为负数,请重新输入");
                money = sc.nextInt();
            }
            ps.setMoney(money);
            Save save = new Save();
            Save.write(ps.getId()+"\r\n");
            Save.write(ps.all()+"\r\n");
            ps.setId(id++);
            try{                   //序列化
                  FileOutputStream fs = new FileOutputStream("Person.ser");
                  ObjectOutputStream os = new ObjectOutputStream(fs);
                  os.writeObject(ps);
                  os.close();
                  }catch(Exception ex){
                   ex.printStackTrace();
               }
       }
}

//将人物资料存储到文件
import java.io.FileWriter;
import java.io.IOException;
public class Save {
    //String filename = "F:/person.txt";
    public static void write(String context ){
        try {  
            String filename = "F:/person.txt";
                // 打开一个写文件器，构造函数中的第二个参数true表示以追加形式写文件  
                FileWriter writer = new FileWriter(filename, true);  
                writer.write(context);
                writer.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            }  
        } 
}

//从文件中读取人员资料类
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
public class Read {
     public static void readFileByLines(String fileName) {  
            File file = new File(fileName);  
            BufferedReader reader = null;  
            try {  
                reader = new BufferedReader(new FileReader(file));  
                String tempId = null; 
                String tempString = null; 
                while ((tempId = reader.readLine()) != null 
                           && (tempString = reader.readLine()) != null) {       
                    //读取文件并输出
                  System.out.print( "id:"+tempId +" \n" );
                  System.out.println( tempString + "\n" );
                  }
                reader.close();  
            } catch (IOException e) {  
                e.printStackTrace();  
            } finally {  
                if (reader != null) {  
                    try {  
                        reader.close();  
                    } catch (IOException e1) {  
                    }  
                }  
            }  
     }  
}