被代理对象接口定义

 

public interface UserManager {	public void aadUser(User user);		public void deleteById(int id);		public void updateUser(User user);		public User findById(int id);}

 

 被代理对象接口实现

 

public class UserManagerImp implements UserManager {	@Override	public void aadUser(User user) {		System.out.println("----------addUser------------");	}	@Override	public void deleteById(int id) {		System.out.println("----------deleteById------------");	}	@Override	public User findById(int id) {		System.out.println("----------findById------------");		return null;	}	@Override	public void updateUser(User user) {		System.out.println("----------updateUser------------");	}}

 

 定义一个user对象

 

public class User {	private int id;	private String name;	private int age;	public String getName() {		return name;	}	public void setName(String name) {		this.name = name;	}	public int getAge() {		return age;	}	public void setAge(int age) {		this.age = age;	}	public int getId() {		return id;	}	public void setId(int id) {		this.id = id;	}}