java遍历实体类的属性和值

代码如下：

实体类：

public class User implements Serializable {

    private static final long serialVersionUID = 1L;

    private String pkid;

    private String userName;

    private String passWord;

    private String roleID;
}

遍历：

public class test {

        public static void main(String[] args) throws Exception{
            User e = new User();
            reflect(e);
        }

        public static void reflect(User e) throws Exception{
            Class cls = e.getClass();
            Field[] fields = cls.getDeclaredFields();
            for(int i=0; i<fields.length; i++){
                Field f = fields[i];
                f.setAccessible(true);
                System.out.println("属性名:" + f.getName() + " 属性值:" + f.get(e));
            }
        }
}

输出：