001.SpringBoot图片上传binary

1）控制层

    
    @ApiOperation("根据id更新图片上传阿里云")
    @PostMapping("/carCompleteImgEditOss")
    baseResult carCompleteImgEditOss(HttpServletRequest request, @RequestParam("id") Long id) {
        if (id == null) {
            return baseResult.fail("整车效果图ID不能为空");
        }
        byte[] bytes = FileUtil.input2byte(request);
        if (bytes == null) {
            return baseResult.fail("上传图片不能为空");
        }
        UploadBytesResp uploadBytesResp = resourceInfoService.uploadFileSn(bytes, null);
        if (uploadBytesResp == null) {
            return baseResult.fail("上传图片失败");
        }

        CarsCompleteImgReq carsCompleteImgReq = new CarsCompleteImgReq();
        carsCompleteImgReq.setId(id);
        carsCompleteImgReq.setCompleteImg(uploadBytesResp.getExternalUrl());
        carsCompleteImgReq.setCompleteSn(uploadBytesResp.getSn());
        return CommonUtils.toResult(() -> completeImgApi.carCompleteImgEdit(carsCompleteImgReq));
    }

2）工具类

package com.lotus.dm.lsc.common.utils;

import javax.servlet.http.HttpServletRequest;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;

public class FileUtil {

    
    public static final byte[] input2byte(HttpServletRequest request) {
        try {
            InputStream inStream = request.getInputStream();
            ByteArrayOutputStream swapStream = new ByteArrayOutputStream();
            byte[] buff = new byte[100];
            int rc = 0;
            while ((rc = inStream.read(buff, 0, 100)) > 0) {
                swapStream.write(buff, 0, rc);
            }
            byte[] in2b = swapStream.toByteArray();
            return in2b;
        } catch (IOException e) {

        }
        return null;
    }
}