商品管理图片更换实现

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapperPUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.java1234.mapper.ProductMapper"><resultMap id="productResult" type="com.java1234.entity.Product"><association property="type" column="typeId" select="com.java1234.mapper.SmallTypeMapper.findById"></association></resultMap><select id="list" parameterType="Map" resultMap="productResult">select * from t_product<where><if test="name!=null and name!='' ">and name like concat('%',#{name},'%')</if></where><if test="start!=null and pageSize!=null ">limit #{start},#{pageSize}</if></select><select id="getTotal" parameterType="Map" resultType="Long">select count(*) from t_product<where><if test="name!=null and name!='' ">and name like concat('%',#{name},'%')</if></where></select><insert id="add" parameterType="com.java1234.entity.Product">insert into t_product values(null,#{name},#{price},#{stock},#{proPic},#{hot},#{swiper},#{swiperPic},#{swiperSort},#{type.id},null,#{productIntroImgs},#{productParaImgs},#{description});</insert><update id="update" parameterType="com.java1234.entity.Product">update t_product<set><if test="name!=null and name!=''">name=#{name},</if><if test="price!=null">price=#{price},</if><if test="stock!=null">stock=#{stock},</if><if test="type!=null and type.id!=null">typeId=#{type.id},</if><if test="proPic!=null and proPic!=''">proPic=#{proPic},</if><if test="description!=null and description!=''">description=#{description},</if><if test="productIntroImgs!=null and productIntroImgs!=''">productIntroImgs=#{productIntroImgs},</if><if test="productParaImgs!=null and productParaImgs!=''">productParaImgs=#{productParaImgs},</if><if test="swiperPic!=null and swiperPic!=''">swiperPic=#{swiperPic},</if><if test="swiperSort!=null">swiperSort=#{swiperSort},</if></set>where id=#{id}</update><select id="findById" parameterType="Integer" resultMap="productResult">select * from t_product where id=#{id}</select></mapper>

package com.java1234.controller.admin;import com.java1234.entity.*;
import com.java1234.service.IProductService;
import com.java1234.util.DateUtil;
import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;import java.io.File;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;/*** 管理端-商品Controller控制器* @author java1234_小锋* @site www.java1234.com* @company 南通小锋网络科技有限公司* @create 2022-02-14 6:54*/
@RestController
@RequestMapping("/admin/product")
public class AdminProductController {@Autowiredprivate IProductService productService;@Value("${productImagesFilePath}")private String productImagesFilePath;/*** 根据条件分页查询* @param pageBean* @return*/@RequestMapping("/list")public R list(@RequestBody PageBean pageBean){System.out.println(pageBean);Map<String,Object> map=new HashMap<>();map.put