0
아래 코드를 사용하여 웹 사이트에 파일을 인증하고 업로드하는 데이 코드를 사용하고 있지만 "부패한 양식 데이터 : 선행 경계 없음"오류가 발생합니다. 나는이를 볼 수있는 피들러에서 C# 업로드 파일 오류 - 손상된 양식 데이터 : 선행 경계 없음
는, (내가 브라우저을 사용하여 파일을 업로드 할 때 나는 동일한 일을 참조)하지 내가 사용하고있는 중이 야 때 오류가 점점 오전 확실한 이유 C#을 HttpWebRequest/웹 클라이언트피들러 정보 :
------WebKitFormBoundary9ewWOMyBmk0YAhTL
Content-Disposition: form-data; name="FileSubmitted"; filename="SAMPLE_0001.xls"
Content-Type: application/vnd.ms-excel
------WebKitFormBoundary9ewWOMyBmk0YAhTL
Content-Disposition: form-data; name="FileSubmittedValue"
C:\path\SAMPLE_0001.xls
------WebKitFormBoundary9ewWOMyBmk0YAhTL--
가정 :
'경계'값으로 로그인 한 후 '경계'값을 얻는 방법을 모르므로 값이 하드 코딩되었습니다.
코드 : 유래에서 복사
static void Main()
{
NameValueCollection nvCollection = new NameValueCollection();
CookieAwareWebClient webClient = new CookieAwareWebClient();
nvCollection.Clear();
nvCollection["Name"] = "ABC";
nvCollection["Password"] = "XYZ";
//Login to the Site
byte[] responseBytes = webClient.UploadValues("https://www.somesite.com/login.cfm", "POST", nvCollection);
string resultAuthTicket = Encoding.UTF8.GetString(responseBytes);
//Get Cookies
CookieCollection cookies = webClient.CookieContainer.GetCookies(new Uri("https://www.somesite.com/login.cfm"));
//
string URL = "https://www.somesite.com/app/request.cfm";
string boundary = "----WebKitFormBoundary9ewWOMyBmk0YAhTL";
string FilePath = "C:\\Users\\user.name\\Desktop\\SAMPLE_0001.xls";
byte[] fileData = GetMultipartFormData(new Dictionary<string, object>() { { "FileSubmitted", FilePath } }, boundary);
PostForm(URL, "", "", fileData, boundary, cookies);
}
private static byte[] GetMultipartFormData(Dictionary<string, object> postParameters, string boundary)
{
Encoding encoding = Encoding.UTF8;
Stream formDataStream = new System.IO.MemoryStream();
bool needsCLRF = false;
foreach (var param in postParameters)
{
// Thanks to feedback from commenters, add a CRLF to allow multiple parameters to be added.
// Skip it on the first parameter, add it to subsequent parameters.
if (needsCLRF)
formDataStream.Write(encoding.GetBytes("\r\n"), 0, encoding.GetByteCount("\r\n"));
needsCLRF = true;
{
string postData = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"; filename=\"{2}\"\r\nContent-Type: {3}\r\n\r\n",
boundary,
param.Key,
param.Value,
"application/vnd.ms-excel");
formDataStream.Write(encoding.GetBytes(postData), 0, encoding.GetByteCount(postData));
string postData2 = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\" \r\n\r\n{2}",
boundary,
"FileSubmittedValue",
"C:\\path\\SAMPLE_0001.xls");
formDataStream.Write(encoding.GetBytes(postData2), 0, encoding.GetByteCount(postData2));
}
}
// Add the end of the request. Start with a newline
string footer = "\r\n--" + boundary + "--\r\n";
formDataStream.Write(encoding.GetBytes(footer), 0, encoding.GetByteCount(footer));
// Dump the Stream into a byte[]
formDataStream.Position = 0;
byte[] formData = new byte[formDataStream.Length];
formDataStream.Read(formData, 0, formData.Length);
formDataStream.Close();
return formData;
}
private static HttpWebResponse PostForm(string postUrl, string userAgent, string contentType, byte[] formData, string boundary, CookieCollection cookies)
{
HttpWebRequest request = WebRequest.Create(postUrl) as HttpWebRequest;
if (request == null)
{
throw new NullReferenceException("request is not a http request");
}
// Set up the request properties.
request.UserAgent = userAgent;
request.ContentLength = formData.Length;
request.ContentType = "multipart/form-data; boundary=" + boundary;
request.Method = "POST";
request.KeepAlive = true;
request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
request.CookieContainer = new CookieContainer();
request.CookieContainer.Add(cookies);
request.Host = "secure.somesite.com";
request.Referer = String.Format("https://secure.somesite.com/app/request.cfm?CFID={0}&CFTOKEN={1}", cookies[0].Value, cookies[1].Value);
request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36";
// Send the form data to the request.
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(formData, 0, formData.Length);
requestStream.Close();
}
try
{
return request.GetResponse() as HttpWebResponse;
}
catch (WebException wex)
{
var pageContent = new StreamReader(wex.Response.GetResponseStream())
.ReadToEnd();
return null;
}
return null;
}
오류 :
<head><title>JRun Servlet Error</title></head><h1>500 </h1><body>
<pre>
Corrupt form data: no leading boundary: != ------WebKitFormBoundary9ewWOMyBmk0YAhTL</pre><br><pre>
java.io.IOException: Corrupt form data: no leading boundary: != ------WebKitFormBoundary9ewWOMyBmk0YAhTL
at com.oreilly.servlet.multipart.MultipartParser.<init>(MultipartParser.java:176)
at com.oreilly.servlet.multipart.MultipartParser.<init>(MultipartParser.java:95)
at coldfusion.filter.FormScope.fillMultipart(FormScope.java:170)
at coldfusion.filter.FusionContext.SymTab_initForRequest(FusionContext.java:435)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:33)
at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:126)
at coldfusion.CfmServlet.service(CfmServlet.java:175)
at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
at jrun.servlet.FilterChain.service(FilterChain.java:101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
</pre></body>
이 알고하지 마십시오 : I에 유래에서이 소스 코드를 복사 때문에, 나는 돈 ' 파일이 실제로 서버의 C : \ Path 폴더에 업로드되고 있는지 확인합니다 (Fiddler 데이터보기).
업데이트 : 나는 브라우저를 사용하여 파일을 업로드 할 때 내가 콘텐츠 길이 참조 : 49,504를,하지만 난 C# 프로그램을 콘텐츠 길이를 사용하려고하면 385 (심지어 나는 모두 같은 파일을 사용할 때 브라우저 및 C# 프로그램) 또한
, 내가 얻고 지금하려고 할 때 "어떤 데이터가 업로드 된 파일 SAMPLE_0001.xls 수신되지 않았다"