设计一个用户认证类,使用策略模式实现多种认证算法 (例如用户名密码认证、 短信验证码认证、第三方登录认证),并可以选择使用不同的认证算法来进行用 户认证。画出UML类图和程序源码
时间: 2024-05-09 13:20:58 浏览: 7
以下是用户认证类的UML类图:
![用户认证类的UML类图](https://img-blog.csdn.net/20180715191101318?watermark/2/text/aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3d1MjA5NTMwMw==/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/q/70)
以下是用户认证类的程序源码:
```java
// AuthenticationStrategy.java
public interface AuthenticationStrategy {
boolean authenticate(String username, String password);
}
// UsernamePasswordAuthentication.java
public class UsernamePasswordAuthentication implements AuthenticationStrategy {
@Override
public boolean authenticate(String username, String password) {
// 验证用户名密码
return true;
}
}
// SmsCodeAuthentication.java
public class SmsCodeAuthentication implements AuthenticationStrategy {
@Override
public boolean authenticate(String username, String password) {
// 验证短信验证码
return true;
}
}
// ThirdPartyAuthentication.java
public class ThirdPartyAuthentication implements AuthenticationStrategy {
@Override
public boolean authenticate(String username, String password) {
// 验证第三方登录
return true;
}
}
// UserAuthenticator.java
public class UserAuthenticator {
private AuthenticationStrategy strategy;
public UserAuthenticator(AuthenticationStrategy strategy) {
this.strategy = strategy;
}
public boolean authenticate(String username, String password) {
return strategy.authenticate(username, password);
}
}
// Demo.java
public class Demo {
public static void main(String[] args) {
AuthenticationStrategy strategy = new UsernamePasswordAuthentication();
UserAuthenticator authenticator = new UserAuthenticator(strategy);
boolean result = authenticator.authenticate("username", "password");
}
}
```