我最近遇到了一个问题，不允许我在我的.ashx文件中使用DELETE和PUT请求，所以我添加了正确的动词以便允许访问。现在我收到500内部服务器错误。这是处理程序的web.config：
<handlers>
<remove name="OPTIONSVerbHandler" />
<remove name="WebServiceHandlerFactory-Integrated" />
<remove name="svc-Integrated" />
<remove name="WebDAV" />
<add name="svc-Integrated" path="*.svc" verb="*" type="System.ServiceModel.Activation.HttpHandler, System.ServiceModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" preCondition="integratedMode" />
<add name="OwssvrHandler" scriptProcessor="C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\isapi\owssvr.dll" path="/_vti_bin/owssvr.dll" verb="*" modules="IsapiModule" preCondition="integratedMode" />
<add name="ScriptHandlerFactory" verb="*" path="*.asmx" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="ScriptHandlerFactoryAppServices" verb="*" path="*_AppService.axd" preCondition="integratedMode" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="ScriptResource" preCondition="integratedMode" verb="GET,HEAD" path="ScriptResource.axd" type="System.Web.Handlers.ScriptResourceHandler, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
<add name="JSONHandlerFactory" path="*.json" verb="*" type="System.Web.Script.Services.ScriptHandlerFactory, System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" resourceType="Unspecified" preCondition="integratedMode" />
<add name="ReportViewerWebPart" verb="*" path="Reserved.ReportViewerWebPart.axd" type="Microsoft.ReportingServices.SharePoint.UI.WebParts.WebPartHttpHandler, Microsoft.ReportingServices.SharePoint.UI.WebParts, Version=10.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" />
<add name="ReportViewerWebControl" verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
<add name="ashxhandler" path="*.ashx" verb="*" type="System.Web.UI.SimpleHandlerFactory" validate="True" />
</handlers>
这是httpHandlers：
<httpHandlers>
<add path="*.ashx" verb="*" type="System.Web.UI.SimpleHandlerFactory" validate="True" />
</httpHandlers>
有什么想法吗？我已经去了IIS 7，去了Request Filtering，添加了.ashx文件扩展名，将其设置为true，然后在HTTP Verbs部分我添加了DELETE，POST，GET，HEADER，PUT。
编辑：
这是我的.ashx文件：
<%@ WebHandler Language="C#" Class="jQueryUploadTest.Upload" %>
using System;
using System.Collections.Generic;
using System.IO;
using System.Security.AccessControl;
using System.Web;
using System.Web.Script.Serialization;
namespace jQueryUploadTest {
public class Upload : IHttpHandler {
public class FilesStatus
{/*
public string thumbnail_url { get; set; }
public string name { get; set; }
public string url { get; set; }
public int size { get; set; }
public string type { get; set; }
public string delete_url { get; set; }
public string delete_type { get; set; }
public string error { get; set; }
public string progress { get; set; }
*/
private string m_thumbnail_url;
private string m_name;
private string m_url;
private int m_size;
private string m_type;
private string m_delete_url;
private string m_delete_type;
private string m_error;
private string m_progress;
public string thumbnail_url { get { return m_thumbnail_url; } set { m_thumbnail_url = value; } }
public string name { get { return m_name; } set { m_name = value; } }
public string url { get { return m_url; } set { m_url = value; } }
public int size { get { return m_size; } set { m_size = value; } }
public string type { get { return m_type; } set { m_type = value; } }
public string delete_url { get { return m_delete_url; } set { m_delete_url = value; } }
public string delete_type { get { return m_delete_type; } set { m_delete_type = value; } }
public string error { get { return m_error; } set { m_error = value; } }
public string progress { get { return m_progress; } set { m_progress = value; } }
}
private readonly JavaScriptSerializer js = new JavaScriptSerializer();
private string ingestPath;
public bool IsReusable { get { return false; } }
public void ProcessRequest (HttpContext context) {
//var r = context.Response;
ingestPath = @"C:\temp\ingest\";
context.Response.AddHeader("Pragma", "no-cache");
context.Response.AddHeader("Cache-Control", "private, no-cache");
HandleMethod(context);
}
private void HandleMethod (HttpContext context) {
switch (context.Request.HttpMethod) {
case "HEAD":
case "GET":
ServeFile(context);
break;
case "POST":
UploadFile(context);
break;
case "DELETE":
DeleteFile(context);
break;
default:
context.Response.ClearHeaders();
context.Response.StatusCode = 405;
break;
}
}
private void DeleteFile (HttpContext context) {
string filePath = ingestPath + context.Request["f"];
if (File.Exists(filePath)) {
File.Delete(filePath);
}
}
private void UploadFile (HttpContext context) {
List<FilesStatus> statuses = new List<FilesStatus>();
System.Collections.Specialized.NameValueCollection headers = context.Request.Headers;
if (string.IsNullOrEmpty(headers["X-File-Name"])) {
UploadWholeFile(context, statuses);
} else {
UploadPartialFile(headers["X-File-Name"], context, statuses);
}
WriteJsonIframeSafe(context, statuses);
}
private void UploadPartialFile (string fileName, HttpContext context, List<FilesStatus> statuses) {
if (context.Request.Files.Count != 1) throw new HttpRequestValidationException("Attempt to upload chunked file containing more than one fragment per request");
Stream inputStream = context.Request.Files[0].InputStream;
string fullName = ingestPath + Path.GetFileName(fileName);
using (FileStream fs = new FileStream(fullName, FileMode.Append, FileAccess.Write)) {
byte[] buffer = new byte[1024];
int l = inputStream.Read(buffer, 0, 1024);
while (l > 0) {
fs.Write(buffer,0,l);
l = inputStream.Read(buffer, 0, 1024);
}
fs.Flush();
fs.Close();
}
FilesStatus MyFileStatus = new FilesStatus();
MyFileStatus.thumbnail_url = "Thumbnail.ashx?f=" + fileName;
MyFileStatus.url = "Upload.ashx?f=" + fileName;
MyFileStatus.name = fileName;
MyFileStatus.size = (int)(new FileInfo(fullName)).Length;
MyFileStatus.type = "image/png";
MyFileStatus.delete_url = "Upload.ashx?f=" + fileName;
MyFileStatus.delete_type = "DELETE";
MyFileStatus.progress = "1.0";
/* {
thumbnail_url = "Thumbnail.ashx?f=" + fileName,
url = "Upload.ashx?f=" + fileName,
name = fileName,
size = (int)(new FileInfo(fullName)).Length,
type = "image/png",
delete_url = "Upload.ashx?f=" + fileName,
delete_type = "DELETE",
progress = "1.0"
};
*/
statuses.Add(MyFileStatus);
}
private void UploadWholeFile(HttpContext context, List<FilesStatus> statuses) {
for (int i = 0; i < context.Request.Files.Count; i++) {
HttpPostedFile file = context.Request.Files[i];
file.SaveAs(ingestPath + Path.GetFileName(file.FileName));
string fileName = Path.GetFileName(file.FileName);
FilesStatus MyFileStatus = new FilesStatus();
MyFileStatus.thumbnail_url = "Thumbnail.ashx?f=" + fileName;
MyFileStatus.url = "Upload.ashx?f=" + fileName;
MyFileStatus.name = fileName;
MyFileStatus.size = file.ContentLength;
MyFileStatus.type = "image/png";
MyFileStatus.delete_url = "Upload.ashx?f=" + fileName;
MyFileStatus.delete_type = "DELETE";
MyFileStatus.progress = "1.0";
statuses.Add(MyFileStatus);
}
}
private void WriteJsonIframeSafe(HttpContext context, List<FilesStatus> statuses) {
context.Response.AddHeader("Vary", "Accept");
try {
if (context.Request["HTTP_ACCEPT"].Contains("application/json")) {
context.Response.ContentType = "application/json";
} else {
context.Response.ContentType = "text/plain";
}
} catch {
context.Response.ContentType = "text/plain";
}
string jsonObj = js.Serialize(statuses.ToArray());
context.Response.Write(jsonObj);
}
private void ServeFile (HttpContext context) {
if (string.IsNullOrEmpty(context.Request["f"])) ListCurrentFiles(context);
else DeliverFile(context);
}
private void DeliverFile (HttpContext context) {
string filePath = ingestPath + context.Request["f"];
if (File.Exists(filePath)) {
context.Response.ContentType = "application/octet-stream";
context.Response.WriteFile(filePath);
context.Response.AddHeader("Content-Disposition", "attachment, filename=\"" + context.Request["f"] + "\"");
} else {
context.Response.StatusCode = 404;
}
}
private void ListCurrentFiles (HttpContext context) {
List<FilesStatus> files = new List<FilesStatus>();
string[] names = Directory.GetFiles(@"C:\temp\ingest", "*", SearchOption.TopDirectoryOnly);
foreach (string name in names) {
FileInfo f = new FileInfo(name);
FilesStatus MyFileStatus = new FilesStatus();
MyFileStatus.thumbnail_url = "Thumbnail.ashx?f=" + f.Name;
MyFileStatus.url = "Upload.ashx?f=" + f.Name;
MyFileStatus.name = f.Name;
MyFileStatus.size = (int)f.Length;
MyFileStatus.type = "image/png";
MyFileStatus.delete_url = "Upload.ashx?f=" + f.Name;
MyFileStatus.delete_type = "DELETE";
files.Add(MyFileStatus);
/*files.Add(new FilesStatus
{
thumbnail_url = "Thumbnail.ashx?f=" + f.Name,
url = "Upload.ashx?f=" + f.Name,
name = f.Name,
size = (int)f.Length,
type = "image/png",
delete_url = "Upload.ashx?f=" + f.Name,
delete_type = "DELETE"
});*/
}
context.Response.AddHeader("Content-Disposition", "inline, filename=\"files.json\"");
string jsonObj = js.Serialize(files.ToArray());
context.Response.Write(jsonObj);
context.Response.ContentType = "application/json";
}
}
}
错误：
XML Parsing Error: no element found
Location: http://nbcddmsps01:87/_layouts/IrvineCompany.SharePoint.CLM/aspx/Upload.ashx?f=test.txt
Line Number 1, Column 1:
我只是在我的web.config中添加了动词之后才得到这个错误所以我可以调用DELETE和PUT请求进入httphandler
答案 0 :(得分：1)
该错误通常意味着您的处理程序代码抛出了代码未处理的异常。看一看。