oss或上传本地服务器

tech2022-09-20 85

上传图片：

前端为H+框架引用class：

上传图片HTML代码：

引用JS：

JS上传代码：

上传图片到阿里云oss

1、需要阿里云开通oss

2、需要创建AccessKey

#region 上传图片 - OSS /// <summary> /// 上传图片 - OSS /// </summary> /// <param name="param">参数{"UserID":"用户ID"}</param> /// <returns></returns> public JsonResult UploadImg(string param) { JObject jObject = JObject.Parse(param); if (Convert.ToInt32(jObject["UserID"].ToString()) < 2) { return Json(new Result { DATA = null, ERROR_CODE = "1", ERROR_MESSAGE = "数据提交失败，请重新登陆后再试" }, JsonRequestBehavior.DenyGet); } //OSS的访问地址阿里云概览中的EndPoint（地域节点）如果做了绑定域名，则为绑定的域名 string endpoint = System.Configuration.ConfigurationManager.AppSettings["OOS_endpoint"]; //OSS的访问ID string accessKeyId = System.Configuration.ConfigurationManager.AppSettings["OOS_accessKeyId"]; //OSS的访问密钥 string accessKeySecret = System.Configuration.ConfigurationManager.AppSettings["OOS_accessKeySecret"]; //bucket列表中的名称 String bucketName = System.Configuration.ConfigurationManager.AppSettings["OOS_bucketName"]; //文件路径必须与阿里云oss中匹配 string filePathName = "Admin/Chat/"; try { HttpPostedFileBase file = Request.Files[0]; //文件名称 filePathName += Guid.NewGuid().ToString("N") + Path.GetExtension(file.FileName); if (Path.GetExtension(file.FileName) != ".png" && Path.GetExtension(file.FileName) != ".jpg") { return Json(new Result { DATA = null, ERROR_CODE = "1", ERROR_MESSAGE = "请上传正确的图片格式" }, JsonRequestBehavior.DenyGet); } // 创建OssClient实例。 var client = new OssClient(endpoint, accessKeyId, accessKeySecret); // 上传文件。 client.PutObject(bucketName, filePathName, file.InputStream); } catch (Exception ex) { ErrLog.LogResult("异常描述" + ex.Message); return Json(new Result { DATA = null, ERROR_CODE = "1", ERROR_MESSAGE = ex.Message }, JsonRequestBehavior.DenyGet); } object data = new { PictureUrl = filePathName }; return Json(new Result { DATA = data, ERROR_CODE = "-1", ERROR_MESSAGE = "" }, JsonRequestBehavior.DenyGet); } #endregion

从OSS上下载图片

#region 文件下载 /// <summary> /// OSS文件下载 /// </summary> /// <param name="objectName">oss文件路径</param> /// <param name="downloadFilename">下载路径</param> /// <returns></returns> public JsonResult OSSDownload(string objectName, string downloadFilename) { //OSS的访问地址 string endpoint = System.Configuration.ConfigurationManager.AppSettings["OOS_endpoint"]; //OSS的访问ID string accessKeyId = System.Configuration.ConfigurationManager.AppSettings["OOS_accessKeyId"]; //OSS的访问密钥 string accessKeySecret = System.Configuration.ConfigurationManager.AppSettings["OOS_accessKeySecret"]; String bucketName = System.Configuration.ConfigurationManager.AppSettings["OOS_bucketName"]; // 创建OssClient实例。 var client = new OssClient(endpoint, accessKeyId, accessKeySecret); try { var obj = client.GetObject(bucketName, objectName); using (var requestStream = obj.Content) { byte[] buf = new byte[1024]; var fs = System.IO.File.Open(downloadFilename, FileMode.OpenOrCreate); var len = 0; // 通过输入流将文件的内容读取到文件或者内存中。 while ((len = requestStream.Read(buf, 0, 1024)) != 0) { fs.Write(buf, 0, len); } fs.Close(); } Console.WriteLine("Get object succeeded"); } catch (Exception ex) { return Json(new { jsonrpc = "2.0", id = -1, filePath = ex.Message }, JsonRequestBehavior.AllowGet); } return Json(new { jsonrpc = "2.0", filePath = downloadFilename }, JsonRequestBehavior.AllowGet); } #endregion

上传图片到本地服务器：

需要设置Upload文件夹的权限为最高权限，可上传以及下载

System.Configuration.ConfigurationManager.AppSettings[“ImagePath”] 为上传文件的文件夹在config中的配置

#region 图片上传 - 本地 /// <summary> /// 图片上传 - 本地 /// </summary> /// <param name="param">参数{"UserID":"登录会员ID","Type":"图片类型"}</param> /// <returns></returns> [HttpPost] public JsonResult UploadMerchantPicture(string param) { JObject jObject = JObject.Parse(param); if (Convert.ToInt32(jObject["UserID"].ToString()) < 2) { return Json(new Result { DATA = null, ERROR_CODE = "1", ERROR_MESSAGE = "数据提交失败，请重新登陆后再试" }, JsonRequestBehavior.DenyGet); } string savePath = string.Empty; string PictureUrl = string.Empty; switch (jObject["Type"].ToString()) { case "tx": savePath = System.Configuration.ConfigurationManager.AppSettings["ImagePath"] + "HeadPortrait/"; //会员头像 break; default: break; } HttpFileCollectionBase httpFileCollectionBase = Request.Files; string Name = Guid.NewGuid().ToString(); try { if (httpFileCollectionBase.Count > 0) { if (!Directory.Exists(Server.MapPath(savePath))) { Directory.CreateDirectory(Server.MapPath(savePath)); } PictureUrl = DateTime.Now.ToString("yyyyMMddHHmmss") + "-" + jObject["UserID"].ToString(); if ("pos".Equals(jObject["Type"].ToString())) { httpFileCollectionBase[0].SaveAs(Server.MapPath(savePath) + Name + ".jpg"); } else { httpFileCollectionBase[0].SaveAs(Server.MapPath(savePath) + PictureUrl + ".jpg"); } switch (jObject["Type"].ToString()) { case "tx": PictureUrl = "/Upload/HeadPortrait/" + PictureUrl + ".jpg"; break; default: break; } object data = new { PictureUrl = PictureUrl }; return Json(new Result { DATA = data, ERROR_CODE = "-1", ERROR_MESSAGE = "" }, JsonRequestBehavior.DenyGet); } else { return Json(new Result { DATA = null, ERROR_CODE = "1", ERROR_MESSAGE = "请拍照或选择一张图片" }, JsonRequestBehavior.DenyGet); } } catch (Exception ex) { return Json(new Result { DATA = null, ERROR_CODE = "1", ERROR_MESSAGE = ex.Message }, JsonRequestBehavior.DenyGet); } } #endregion

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