2022-04-07 配置文件读取用户名和密码

把你注册的用户名和密码用配置文件保存，登录时从配置文件读取用户名和密码​​

public class Test {
    public static void main(String[] args) throws IOException, ClassNotFoundException {
        //把你注册的用户名和密码用配置文件保存，登录时从配置文件读取用户名和密码

        Scanner sc = new Scanner(System.in);
        System.out.println("注册账号：");
        System.out.println("请输入你的账号");
        String username = sc.nextLine();
        System.out.println("请输入你的密码");
        String password = sc.nextLine();
        Account ac = getAccount(username, password);
        write(ac);
        read();
    }

    private static void read() throws IOException, ClassNotFoundException {
        ObjectInputStream in = new ObjectInputStream(new FileInputStream("account.properties"));
        Object a = in.readObject();
        Account account = (Account) a;
        System.out.println(account.getUsername() + "=" + account.password);
    }

    private static Account getAccount(String username, String password) {
        return new Account(username, password);
    }

    private static void write(Account ac) throws IOException {
        ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("account.properties"));
        out.writeObject(ac);
    }
}

 

import java.io.Serializable;

public class Account implements Serializable {
    private static final long serialVersionUID = 8514220324172857230L;
    String username;
    String password;

    public Account(String username, String password) {
        this.username = username;
        this.password = password;
    }

    public Account() {
    }

    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;
    }
}