BeanMap实现Java Bean转Map简单

将一个Java Bean转换为Map数据结构，key为Bean字段名，value为Bean字段值，允许通过map的api进行调用

缺点：不能自定义key名称

pom.xml依赖

<dependency>
  <groupId>commons-beanutils</groupId>
  <artifactId>commons-beanutils</artifactId>
  <version>1.9.3</version>
</dependency>

User Bean

@Data
public class User {
    private String userName;
    private String realName;
    private String password;
    private int age;
}

BeanMap示例

public class BeanMapDemo {
    public static void main(String[] args) {
        User user = new User();
        user.setUserName("appblog");
        user.setRealName("Joe.Ye");
        user.setPassword("123456");
        user.setAge(28);
        BeanMap userMap = new BeanMap(user);
        for (Map.Entry<Object, Object> entry : userMap.entrySet()) {
            System.out.println("Key: " + entry.getKey() + ", Value: " + entry.getValue());
        }
    }
}

运行结果

Key: realName, Value: Joe.Ye
Key: password, Value: 123456
Key: userName, Value: appblog
Key: class, Value: class me.yezhou.User
Key: age, Value: 28