package com.panzhihua.common.utlis;
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import com.panzhihua.common.model.dtos.shop.PageComShopOrderSearchDTO;
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import java.lang.reflect.Field;
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import java.text.DecimalFormat;
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import java.util.Arrays;
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/**
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* 工具类
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*/
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public class ClazzUtils {
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/**
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* 如果string属性为“”， 则将其设置为NULL
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* @param o
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*/
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public static void setIfStringIsEmpty(Object o){
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if(o==null){
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return;
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}
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Class clazz = o.getClass();
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Field[] fields = clazz.getDeclaredFields();
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Arrays.stream(fields).forEach(field -> {
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if(String.class == field.getType()){
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try {
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field.setAccessible(true);
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if(field.get(o)!=null) {
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String oVal = (String) field.get(o);
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if ("".equals(oVal)) {
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field.set(o, null);
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}
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}
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} catch (IllegalAccessException e) {
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}
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}
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});
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}
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public static void main(String[] args){
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PageComShopOrderSearchDTO dto = new PageComShopOrderSearchDTO();
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dto.setGoodsName("");
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dto.setOrderNo("123");
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setIfStringIsEmpty(dto);
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System.out.println(dto);
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double d = 1234.200;
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DecimalFormat df = new DecimalFormat("0.00");
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System.out.println(df.format(d));
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}
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}
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