[java反射]将对象Object转换为Map

下面运用java反射的知识&＃xff0c;写一个工具方法&＃xff0c;用来将对象Object转换为Map&＃xff0c;

转换规则为&＃xff1a;Map中的key是原对象的属性名&＃xff0c;value是原来对象的属性值

import java.lang.reflect.Field;
import java.util.HashMap;
import java.util.Map;public class MapUtil {/**** &＃64;Title: objectToMap* &＃64;Description: 将object转换为map&＃xff0c;默认不保留空值* &＃64;param &＃64;param obj* &＃64;return Map 返回类型* &＃64;throws*/public static Map objectToMap(Object obj) {Map map &＃61; new HashMap();map &＃61; objectToMap(obj, false);return map;}public static Map objectToMap(Object obj, boolean keepNullVal) {if (obj &＃61;&＃61; null) {return null;}Map map &＃61; new HashMap();try {Field[] declaredFields &＃61; obj.getClass().getDeclaredFields();for (Field field : declaredFields) {field.setAccessible(true);if (keepNullVal &＃61;&＃61; true) {map.put(field.getName(), field.get(obj));} else {if (field.get(obj) !&＃61; null && !"".equals(field.get(obj).toString())) {map.put(field.getName(), field.get(obj));}}}} catch (Exception e) {e.printStackTrace();}return map;}
}