委派模式——分配工作任务

骑猪看日落 2021-07-24 16:34 319阅读 0赞

**一 代码位置**

[https://gitee.com/cakin24/javatest][https_gitee.com_cakin24_javatest]

**二 代码**

1 Boss

package Delegate;
    
    public class Boss {
        public void command(String command,Leader leader){
            leader.doing(command);
        }
    }

2 DelegateTest

package Delegate;
    
    public class DelegateTest {
        public static void main( String[] args ) {
            new Boss().command("登录",new Leader());
        }
    }

3 EmpolyeeA

package Delegate;
    
    public class EmpolyeeA implements IEmployee{
        @Override
        public void doing( String command ) {
            System.out.println("我是员工A，我现在开始干"+command+"工作");
        }
    }

4 EmpolyeeB

package Delegate;
    
    public class EmpolyeeB implements IEmployee{
        @Override
        public void doing( String command ) {
            System.out.println("我是员工B，我现在开始干"+command+"工作");
        }
    }

5 IEmployee

package Delegate;
    
    public interface IEmployee {
        public void doing(String command);
    }

6 Leader

package Delegate;
    
    import java.util.HashMap;
    import java.util.Map;
    
    public class Leader implements IEmployee{
        private Map<String,IEmployee> targets = new HashMap<String,IEmployee>();
        public Leader(){
            targets.put("加密",new EmpolyeeA());
            targets.put("登录",new EmpolyeeB());
        }
        @Override
        public void doing( String command ) {
            targets.get(command).doing(command);
        }
    }

**三 测试**

我是员工B，我现在开始干登录工作

**四 UML类图**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70][]

[https_gitee.com_cakin24_javatest]: https://gitee.com/cakin24/javatest
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/9d1a5f2a1b824550a3be51e0d49415e6.png