<nz-upload class="avatar-uploader" [nzAccept]="'image/*'" nzFileType="image/png,image/jpeg,image/gif,image/jpg" [nzAction]="uploadPictureUrl" nzName="avatar" nzListType="picture-card" [nzShowUploadList]="false" [nzCustomRequest]="uploadImp" (nzChange)="handleChange($event)">

                <ng-container *ngIf="!imageUrl">

                    <i nz-icon nzType="picture" nzTheme="outline"></i>

                    <div class="ant-upload-text">上传</div>

                </ng-container>

                <img *ngIf="imageUrl" [src]="imageUrl" class="avatar" style="width:100px;height: 100px;">

            </nz-upload>

            <p>请上传jpg, gif, png格式的图片。建议图片尺寸&nbsp;宽:90px;高:90px</p>

import ImageCompressor from 'image-compressor.js'

// 自定义上传方法的实现

  uploadImp = async (item) => {

    debugger

    const isJPG = item.file.type.indexOf('image') > -;

    if (!isJPG) {

      this.message.error('只能上传图片文件！');

      return;

    }

    // 进行图片压缩

    const compressionFile = await new ImageCompressor().compress(item.file, {

      quality: .,

      maxWidth: ,

      maxHeight: ,

      convertSize: , //超过600kb压缩

      success(result) {

      },

      error(e) {

        console.log(e);

        debugger

        throw { message: `压缩失败${e.message}` }

      }

    }).then(ret => {

      debugger

      console.log(ret);

      item.file = ret;

      if (ret.size >  * ) throw { message: '压缩后的图片不能超过600KB' };

      const formData = new FormData();

      formData.append('file', item.file, item.file.name);

      this.http.post(this.uploadPictureUrl, formData).subscribe(result => {

        debugger

      });

    }).catch((err) => {

      const msg = err.message ? err.message : err;

      this.message.error(`图片上传失败，请重试：${msg}`);

    });

}

public string UploadImgToOss()

        {

            var file = Request.Form.Files.FirstOrDefault();

            if (file == null)

                throw new UserFriendlyException(L("FileInfo_Change_Error"));

            var fileInfo = new FileInfo(file.FileName);

            var fileExt = Path.GetExtension(file.FileName);

            byte[] fileBytes;

            string url = "";

            using (var stream = file.OpenReadStream())

            {

                fileBytes = stream.GetAllBytes();

                if (!ImageFormatHelper.GetRawImageFormat(fileBytes).IsIn(ImageFormat.Jpeg, ImageFormat.Png, ImageFormat.Gif))

                {

                    throw new UserFriendlyException("请上传图片文件，仅接受Jpg、PNG、Gif三种格式!");

                }

                var upLoadPath = "/Upload/" + DateTime.Now.ToString("yyyy") + "/" + DateTime.Now.ToString("MM") + "/";

                var newFileName = $"{DateTime.Now:yyyyMMddHHmmss}_{Guid.NewGuid():n}_{fileExt}";

                var data = new MemoryStream(fileBytes);

                var result = OssDrive.UpLoad(newFileName, data);

                if (!result.Status)

                {

                    throw new UserFriendlyException(result.Message);

                }

                url = "http://" + result.Data.Url;

            }

            return url;

        }