下面运用java反射的知识,写一个工具方法,用来将对象Object转换为Map,
转换规则为:Map中的key是原对象的属性名,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 ReflectUtil { /** * * @Title: objectToMap * @Description: 将object转换为map,默认不保留空值 * @param @param obj * @return Map<String,Object> 返回类型 * @throws */ public static Map objectToMap(Object obj) { Map<String, Object> map = new HashMap<String, Object>(); map = objectToMap(obj, false); return map; } public static Map objectToMap(Object obj, boolean keepNullVal) { if (obj == null) { return null; } Map<String, Object> map = new HashMap<String, Object>(); try { Field[] declaredFields = obj.getClass().getDeclaredFields(); for (Field field : declaredFields) { field.setAccessible(true); if (keepNullVal == true) { map.put(field.getName(), field.get(obj)); } else { if (field.get(obj) != null && !"".equals(field.get(obj).toString())) { map.put(field.getName(), field.get(obj)); } } } } catch (Exception e) { e.printStackTrace(); } return map; } }