Map与实体之间转换
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | 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; }} |
