Map与实体之间转换

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package com.thunisoft.maybee.engine.utils;   import java.lang.reflect.Field; import java.lang.reflect.Modifier; import java.util.Date; import java.util.HashMap; import java.util.Map;   public class MapObjUtil {       /**      * 实体对象转成Map      *      * @param obj 实体对象      * @return      */     public static Map<String, Object> object2Map(Object obj) {         Map<String, Object> map = new HashMap<String, Object>();         if (obj == null) {             return map;         }         Class clazz = obj.getClass();         Field[] fields = clazz.getDeclaredFields();         try {             for (Field field : fields) {                 field.setAccessible(true);                 map.put(field.getName(), field.get(obj));             }         } catch (Exception e) {             e.printStackTrace();         }         return map;     }       /**      * Map转成实体对象      *      * @param map   map实体对象包含属性      * @param clazz 实体对象类型      * @return      */     public static <T> T map2Object(Map<String, Object> map, Class<T> clazz) {         if (map == null) {             return null;         }         T obj = null;         try {             obj = clazz.newInstance();               Field[] fields = obj.getClass().getDeclaredFields();             for (Field field : fields) {                 int mod = field.getModifiers();                 if (Modifier.isStatic(mod) || Modifier.isFinal(mod)) {                     continue;                 }                 field.setAccessible(true);                 String filedTypeName = field.getType().getName();                 if (filedTypeName.equalsIgnoreCase("java.util.date")) {                     String datetimestamp = String.valueOf(map.get(field.getName()));                     if (datetimestamp.equalsIgnoreCase("null")) {                         field.set(obj, null);                     } else {                         field.set(obj, new Date(Long.parseLong(datetimestamp)));                     }                 } else {                     field.set(obj, map.get(field.getName()));                 }             }         } catch (Exception e) {             e.printStackTrace();         }         return obj;     } }

原文地址：https://www.cnblogs.com/hfultrastrong/p/9075947.html