前端基本用法：点击查看

实现代码：

const afterRead = (file) => {
  console.log(file);
  //set content-type to multipart/form-data
  const formData = new FormData();
  formData.append("file", file.file);
  request.POST("/api/v1/users/upload", formData, {
    headers: {
      "Content-Type": "multipart/form-data",
    },
  }).then((res) => {
    console.log(res);
  });
};

后端代码：

func (h *usersHandler) Upload(c *gin.Context) {
	// 上传单张图片
	file, err := c.FormFile("file")
	if err != nil {
		logger.Error("FormFile error", logger.Err(err), middleware.GCtxRequestIDField(c))
		response.Error(c, ecode.InternalServerError)
		return
	}
	filename := file.Filename
	// 保存文件到static/pictures
	err = c.SaveUploadedFile(file, "./static/pictures/"+filename)
	if err != nil {
		logger.Error("SaveUploadedFile error", logger.Err(err), middleware.GCtxRequestIDField(c))
		response.Error(c, ecode.InternalServerError)
		return
	}
	response.Success(c, gin.H{"message": "upload success"})
}