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我知道有很多問題類似於這個問題上的礦，但那些不能解決我的問題。我知道web服務自然將我的對象解析爲json作爲框架的一部分。我已手動設置請求標頭Accept爲'application/json，text/javascript，/; Q = 0.01' 。我已將<ScriptMethod(ResponseFormat:=ResponseFormat.Json)>添加到我的網絡服務中。asmx Web服務無法返回JSON與FineUploader文件上傳
很明顯，我的Web服務正在用文本/純文本響應來響應文件上傳請求標題，並解析了我的簡單FineUploaderResponse對象失敗。請記住，對同一個Web服務的常規jQuery AJAX調用可以正常工作。我寧願不使用Web API或通用處理程序代替我的網站，因爲多個網站依賴於我的框架並期望此標準。
在此先感謝！
代碼：
Public Class FineUploaderResponse
Property Success As Boolean
End Class
<WebMethod(EnableSession:=True)> _
<ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
Public Function UploadPhotos()
'next three lines are pointless, didn't help
'HttpContext.Current.Response.Clear()
'HttpContext.Current.Response.ContentType = "application/json"
'HttpContext.Current.Response.Charset = "utf-8"
Dim response As New FineUploaderResponse()
response.Success = True
Return response
End Function
當然現在這個Web服務工作，如果我這樣做：
$(document).ready(function() {
$.ajax(
{
url: "/Services/PhotosService.asmx/UploadPhotos",
type: "POST",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (data) {
console.log(data.d);
}
});
});
標準的jQuery請求頭
POST http://localhost:3066/Services/PhotosService.asmx/UploadPhotos HTTP/1.1
Host: localhost:3066
Proxy-Connection: keep-alive
Content-Length: 0
Cache-Control: no-cache
Pragma: no-cache
Origin: http://localhost:3066
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31
Content-Type: application/json; charset=utf-8
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
Referer: http://localhost:3066/Test.aspx
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
但是我使用FineUploader併發布Content-Type：multipart/form-data;公告雖然接受頭是兩個jQuery的AJAX和FineUploader請求相同的：
POST http://localhost:3066/Services/PhotosService.asmx/UploadPhotos HTTP/1.1
Host: localhost:3066
Proxy-Connection: keep-alive
Content-Length: 110634
Cache-Control: no-cache
Pragma: no-cache
Origin: http://localhost:3066
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary449tHPTKEpuO5jOR
Accept: application/json, text/javascript, */*; q=0.01
X-Requested-With: XMLHttpRequest
Referer: http://localhost:3066/Sellers/photos/?pid=37344
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
從標準的jQuery AJAX調用Web服務的響應是：
HTTP/1.1 200 OK
Server: ASP.NET Development Server/10.0.0.0
Date: Wed, 17 Apr 2013 00:12:21 GMT
X-AspNet-Version: 4.0.30319
Cache-Control: private, max-age=0
Content-Type: application/json; charset=utf-8
Content-Length: 22
Connection: Close
從FineUploader上傳到Web服務響應文件請求是：
HTTP/1.1 500 Internal Server Error
Server: ASP.NET Development Server/10.0.0.0
Date: Wed, 17 Apr 2013 00:18:26 GMT
X-AspNet-Version: 4.0.30319
Cache-Control: private
Content-Type: text/plain; charset=utf-8
Content-Length: 1936
Connection: Close
內部服務器500的錯誤的錯誤消息細節爲：
System.InvalidOperationException: There was an error generating the XML document. ---> System.InvalidOperationException: The type Kazork.AppCode.PhotosService+FineUploaderResponse was not expected. Use the XmlInclude or SoapInclude attribute to specify types that are not known statically.
at System.Xml.Serialization.XmlSerializationWriter.WriteTypedPrimitive(String name, String ns, Object o, Boolean xsiType)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write1_Object(String n, String ns, Object o, Boolean isNullable, Boolean needType)
at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationWriter1.Write3_anyType(Object o)
at Microsoft.Xml.Serialization.GeneratedAssembly.ObjectSerializer1.Serialize(Object objectToSerialize, XmlSerializationWriter writer)
at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle, String id)
--- End of inner exception stack trace ---
at System.Xml.Serialization.XmlSerializer.Serialize(XmlWriter xmlWriter, Object o, XmlSerializerNamespaces namespaces, String encodingStyle, String id)
at System.Xml.Serialization.XmlSerializer.Serialize(TextWriter textWriter, Object o, XmlSerializerNamespaces namespaces)
at System.Web.Services.Protocols.XmlReturnWriter.Write(HttpResponse response, Stream outputStream, Object returnValue)
at System.Web.Services.Protocols.HttpServerProtocol.WriteReturns(Object[] returnValues, Stream outputStream)
at System.Web.Services.Protocols.WebServiceHandler.WriteReturns(Object[] returnValues)
at System.Web.Services.Protocols.WebServiceHandler.Invoke()
而且，如果你很好奇，這是我的電話FineUploader：
var uploader = new qq.FineUploader({
element: document.getElementById('bootstrapped-fine-uploader'),
request: {
endpoint: "/Services/PhotosService.asmx/UploadPhotos",
forceMultipart: true,
params: { propertyId:<%=PropertyId %>},
customHeaders: { Accept: 'application/json, text/javascript, */*; q=0.01' }
},
text: {
uploadButton: '<i class="icon-upload icon-white"></i>Upload nice images.'
},
template: '<div class="qq-uploader">' +
'<pre class="qq-upload-drop-area"><span>{dragZoneText}</span></pre>' +
'<div class="qq-upload-button btn btn-success" style="width: auto;">{uploadButtonText}</div>' +
'<span class="qq-drop-processing"><span>{dropProcessingText}</span><span class="qq-drop-processing-spinner"></span></span>' +
'</div>' +
'<ul class="qq-upload-list" style="margin-top: 10px; text-align: center;"></ul>' +
'',
classes: {
success: 'alert alert-success',
fail: 'alert alert-error'
},
debug: false,
callbacks: {
// onComplete: function (id, fileName, responseJson) {
// $.when(loadThumbs()).done(function() {
// $(".qq-upload-list > .alert-success").remove();
// });
// toastr.success("Success!");
// },
onComplete: function(id, fileName, responseJSON) {
if (responseJSON.success) {
$('#file-' + id).removeClass('alert-info')
.addClass('alert-success')
.html('<i class="icon-ok"></i> ' +
'Successfully saved ' +
'「' + fileName + '」' +
'<br><img src="/images/message_ok.png" alt="' + fileName + '">');
$.when(loadThumbs()).done(function() {
$(".qq-upload-list > .alert-success").remove();
});
toastr.success("Success!");
} else {
$('#file-' + id).removeClass('alert-info')
.addClass('alert-error')
.html('<i class="icon-exclamation-sign"></i> ' +
'Error with ' +
'「' + fileName + '」: ' +
responseJSON.error);
}
},
onError: function (id, fileName, errorReason) {
toastr.error("Failed! Try again.");
}
}
});