我正在使用ASP.NET WEB API将图像上传到服务器。但是,当我将我的Web API的源代码上传到gearhost.com并发出发布请求时。我无法发布图片。这是我的Web API控制器代码:
[Route("upload")]
[HttpPost]
public async Task<string> Upload()
{
var ctx = HttpContext.Current;
var root = ctx.Server.MapPath("/uploads/");
var provider = new MultipartFormDataStreamProvider(root);
try
{
await Request.Content
.ReadAsMultipartAsync(provider);
foreach (var file in provider.FileData)
{
var name = file.Headers
.ContentDisposition
.FileName;
// remove double quotes from string.
name = name.Trim('"');
var localFileName = file.LocalFileName;
var filePath = Path.Combine(root, "files", name);
// File.Move(localFileName, filePath);
// SaveFilePathSQLServerADO(localFileName, filePath);
// SaveFileBinarySQLServerADO(localFileName, name);
// SaveFilePathSQLServerEF(localFileName, filePath);
SaveFileBinarySQLServerEF(localFileName, name, filePath);
if (File.Exists(localFileName))
File.Delete(localFileName);
}
}
catch
{
return "Error";
}
return "File uploaded successfully!";
}
public void SaveFileBinarySQLServerEF(string localFile, string fileName, string filePath)
{
// 1) Get file binary
byte[] fileBytes;
using (var fs = new FileStream(localFile, FileMode.Open, FileAccess.Read))
{
fileBytes = new byte[fs.Length];
fs.Read(fileBytes, 0, Convert.ToInt32(fs.Length));
}
// 2) Create a Files object
var file = new tblimage()
{
Data = fileBytes,
Names = fileName,
ContentType = filePath
};
// 3) Add and save it in database
using (var ctx = new coachEntities())
{
ctx.tblimages.Add(file);
ctx.SaveChanges();
}
}
这是来自本地主机的成功呼叫:
Image posted through localhost
但是,当部署相同的代码并通过邮递员发出请求时,我会收到此错误:
答案 0 :(得分:0)
也许,“上传”没有写权限 检查您的上载文件夹中的权限。 转到属性-安全 授予读写权限。
答案 1 :(得分:0)
尽管在实时代码中返回异常详细信息不是一个好主意。由于您不维护日志。为了进行测试,请返回异常详细信息。另外,由于代码中没有响应,您如何获得“无法上传,请重试”之类的响应