2.5数据库访问

Paste_Image.png

import java.io.*;

public class MyUser {
    public static void main(String[] args){
        String u = "bbb";
        String p = "222";
        
        try {
            File f = new File("D:/work/user.txt");
            
            FileReader fr = new FileReader(f);
            BufferedReader br = new BufferedReader(fr);
            
            boolean b = false;
            while (br.ready()) {
                String uandp = br.readLine();
                String user = uandp.split("%")[0];
                String pass = uandp.split("%")[1];
                
                if (u.equals(user) && p.equals(pass)) {
                    b = true;
                    break;
                }
            }
            
            if (b) {
                System.out.println("验证通过");
            }else {
                System.out.println("验证失败");
            }
            
        } catch (Exception e) {
            // TODO: handle exception
        }
    }
}

运行结果：
验证通过

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