package com.finance.common.utils;
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import cn.hutool.core.util.ObjectUtil;
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import java.lang.reflect.Field;
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import java.math.BigDecimal;
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/**
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* Object操作工具
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**/
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public class ObjectUtils extends ObjectUtil {
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/**
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* 为object设置默认值，对target中的基本类型进行默认值初始化,
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* 为null的对象不操作
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*
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* @param target 需要初始化的对象
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*/
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public static void setDefault(Object target) {
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if (target == null) {
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return;
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}
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Class<?> clazz = target.getClass();
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Field[] declaredFields = clazz.getDeclaredFields();
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for (Field field : declaredFields) {
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setDefault(field, target);
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}
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}
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/**
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* 给某个字段设置为默认值
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*
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* @param field
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* @param target
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*/
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private static void setDefault(Field field, Object target) {
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field.setAccessible(true);
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try {
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Object value = field.get(target);
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if (value != null) {
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return;
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}
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String type = field.getGenericType().toString();
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Object defaultValue;
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switch (type) {
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case "class java.lang.String":
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case "class java.lang.Character":
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defaultValue = "";
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break;
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case "class java.lang.Double":
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defaultValue = 0.0d;
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break;
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case "class java.lang.Long":
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defaultValue = 0L;
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break;
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case "class java.lang.Short":
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defaultValue = (short) 0;
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break;
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case "class java.lang.Integer":
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defaultValue = 0;
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break;
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case "class java.lang.Float":
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defaultValue = 0f;
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break;
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case "class java.lang.Byte":
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defaultValue = (byte) 0;
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break;
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case "class java.math.BigDecimal":
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defaultValue = BigDecimal.ZERO;
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break;
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case "class java.lang.Boolean":
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defaultValue = Boolean.FALSE;
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break;
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default:
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defaultValue = null;
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}
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field.set(target, defaultValue);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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