图像上传在服务器中不起作用.在本地主机上工作正常 [英] Image Upload doesn't work in Server. Works fine in localhost

问题描述

所以，这段代码在本地主机上运行得很好.它会删除上一张图片并上传新图片.但是它在服务器上什么都不做.有什么线索吗?

So, this code works just fine in localhost. It deletes the previous image and uploads the new one. It does nothing on server however. Any clue?

顺便说一下，我已经使用 AJAX 进行异步调用了.

I have used AJAX for asynchorous call By the way if that makes a difference.

  var db=Database.Open("StarterSite");
  var contentQuery="Select * from Contents where id =@0";
  var content=db.QuerySingle(contentQuery,"1");
  var message="";
  var imgCount=0;
  var alreadyExist=false;

    try{
      if (IsPost && Request.Files.Count > 0) {
            bool deleteSuccess = false;
            var fileName = "";
            var photoName = "";
            var fileSavePath = "";
            var uploadedFile = Request.Files[0];
            var toDelete=Request["toDelete"];
            var toUpload=Request["toUpload"];

            if(uploadedFile.ContentLength>0){
                 @******************DELETE***************@
                    var fullPath = Server.MapPath("~/img/" + toDelete);
                    if (File.Exists(fullPath))
                        {
                                File.Delete(fullPath);
                                deleteSuccess = true;
                        }
            @****************UPLOAD*******************@
                  fileName = Path.GetFileName(uploadedFile.FileName);
                    fileSavePath = Server.MapPath("~/img/" +
                      fileName);
                    uploadedFile.SaveAs(fileSavePath);
                    var updateQuery="Update Contents Set "+toUpload +"=@0";
                    db.Execute(updateQuery, fileName);
                    //Response.Redirect("editMode.cshtml");
          }
       }
    }
    catch(HttpException ex){
      message="Image size you selected was too large. Please select a different Image.";
    }  

推荐答案

尝试将文件夹的权限改为777.

Try changing the permission of the folder to 777.

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