1 package object.io;
2
3 import java.io.FileInputStream;
4 import java.io.FileNotFoundException;
5 import java.util.Scanner;
6
7 public class Login {
8 public static void main(String[] args) throws Exception {
9 Scanner sc=new Scanner(System.in);
10 FileInputStream input=new FileInputStream("D:\\Program Files (x86)\\io\\login.txt");
11 int length=0;
12 String string=null;
13
14 byte[] array=new byte[input.available()+1024];
15 while((length=input.read(array))!=-1){
16 string=new String(array,0,length);
17 System.out.println(string);
18 }
19
20 String[] users=string.split("&&");//每个人的登录信息称为一组
21
22 System.out.println("请输入账户名：");
23 String name=sc.next();
24
25 System.out.println("请输入密码：");
26 String pwd=sc.next();
27 //拼接输入的账号密码
28 String inputUser=name+"，"+pwd;
29 //循环数组判断是否有当前账号密码
30 boolean flag=false;
31 for(String u:users){
32 if(inputUser.equals(u)){
33 System.out.println("登录成功");
34 flag=true;
35 break;
36 }
37 }
38 //***********
39 if(flag==false){
40 System.out.println("失败");
41 }
42
43
44 }
45 }
