Java对象属性转为Map

àì夳堔傛蜴生んèń 2023-05-31 03:27 32阅读 0赞

1、在pom.xml中添加依赖包

<dependency>
    			<groupId>cn.hutool</groupId>
    			<artifactId>hutool-core</artifactId>
    			<version>4.3.1</version>
    		</dependency>

2、创建测试类（TestCopyObj1.java）

package com.jeff;
    
    import java.util.HashMap;
    import java.util.Map;
    
    import cn.hutool.core.bean.BeanUtil;
    
    public class TestCopyObj1 { 
    
    	public static void main(String[] args) { 
    		User user = new User("Jeff", "123456", 18);
    		System.out.println("User对象：" + user);
    		Map<String, Object> map = new HashMap<String, Object>();
    		BeanUtil.copyProperties(user, map);
    		System.out.println("Map对象：" + map);
    	}
    
    }
    
    class User { 
    
    	private String userName;
    	private String password;
    	private Integer age;
    
    	public User(String userName, String password, Integer age) { 
    		super();
    		this.userName = userName;
    		this.password = password;
    		this.age = age;
    	}
    
    	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;
    	}
    
    	public Integer getAge() { 
    		return age;
    	}
    
    	public void setAge(Integer age) { 
    		this.age = age;
    	}
    
    	@Override
    	public String toString() { 
    		return "User [userName=" + userName + ", password=" + password + ", age=" + age + "]";
    	}
    
    }

3、控制台输出结果  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTczOTcyMA_size_16_color_FFFFFF_t_70]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTczOTcyMA_size_16_color_FFFFFF_t_70]: /images/20230531/8f6a09e49a9247dc8417fd45136dcd08.png