package com.zt.life.modules.mainPart.utils;
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import java.lang.reflect.Field;
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import java.lang.reflect.Modifier;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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public class MaptObjectUtils {
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/**
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* Map转成实体对象
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* @param map map实体对象包含属性
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* @param clazz 实体对象类型
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* @param flag map的key是下划线(和数据库字段名称一致)命名则为true，key是驼峰命名则为false
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* @return
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*/
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public static Object map2Object(Map<String, Object> map, Class<?> clazz, boolean flag) {
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if (map == null) {
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return null;
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}
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Object obj = null;
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try {
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obj = clazz.newInstance();
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Field[] fields = obj.getClass().getDeclaredFields();
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for (Field field : fields) {
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int mod = field.getModifiers();
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if (Modifier.isStatic(mod) || Modifier.isFinal(mod)) {
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continue;
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}
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field.setAccessible(true);
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if (flag)
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field.set(obj, map.get(HumpToUnderline(field.getName())));
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else
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field.set(obj, map.get((field.getName())));
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}
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} catch (Exception e) {
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e.printStackTrace();
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}
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return obj;
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}
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private static String HumpToUnderline(String name) {
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String regex = "([A-Z])";
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Matcher matcher = Pattern.compile(regex).matcher(name);
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while (matcher.find()) {
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String target = matcher.group();
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name = name.replaceAll(target, "_"+target.toLowerCase());
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}
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return name;
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}
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}
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