Asp.net asmx Web服务无法使用FineUploader文件上载返回JSON

我知道在这个问题上有很多类似于我的问题，但这些问题并不能解决我的问题。我知道web服务自然地将我的对象解析为json作为框架的一部分。我已经手动将请求头Accept设置为“application/json，text/javascript，/；q=0.01'。我已将

添加到我的web服务中

很明显，我的web服务使用文本/普通响应响应文件上载请求头，而解析我的简单FineUploaderResponse对象失败。请记住，对同一web服务的常规jQueryAjax调用可以正常工作。我宁愿不使用Web API或通用处理程序来代替我的Web，因为多个网站依赖于我的框架，并且期望使用此标准

提前谢谢

守则：

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

标准jquery请求头是

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

但我使用的是FineUploader，它发布的是一种内容类型：多部分/表单数据；请注意，尽管jQuery AJAX和FineUploader请求的Accept标头是相同的：

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

来自标准Jquery ajax调用的web服务响应为：

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

FineUploader post文件请求的web服务响应为：

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

内部服务器500错误消息详细信息如下：

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()

如果你好奇的话，这里是我的FineUploader电话：

 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.");
                }
            }
        });

var uploader=new qq.FineUploader({
元素：document.getElementById（'bootstrapped-fine-uploader'），
请求：{
端点：“/Services/photoservice.asmx/UploadPhotos”，
forceMultipart:true，
参数：{propertyId:}，
customHeaders:{Accept:'application/json，text/javascript，*/*；q=0.01'}
},
正文：{
uploadButton:“上传漂亮的图片。”
},
模板：“”+
“{dragZoneText}”+
“{uploadButtonText}”+
“{dropProcessingText}”+
'' +
“
”+
'',
课程：{
成功：“警报成功”，
失败：“警报错误”
},
调试：错误，
回调：{
//onComplete:函数（id、文件名、responseJson）{
//$.when（loadThumbs（））.done（函数（）{
//$（“.qq上传列表>.alert success”）.remove（）；
//                    });
//成功（“成功！”）；
//                },
onComplete:函数（id、文件名、responseJSON）{
if（responseJSON.success）{
$（'#文件-'+id）.removeClass（'alert-info'））
.addClass（“警报成功”）
.html（“”+
“已成功保存”+
“'”+文件名+“'+
“
”）；
$.when（loadThumbs（））.done（函数（）{
$（“.qq上传列表>.alert success”）.remove（）；
});
成功（“成功！”）；
}否则{
$（'#文件-'+id）.removeClass（'alert-info'））
.addClass（'alert-error'）
.html（“”+
'错误与'+
“'+fileName+'”：'+
响应（错误）；
}
},
onError：函数（id、文件名、错误原因）{
toastr.error（“失败！重试”）；
}
}
});

好的，很容易修复，但令人沮丧的是，web服务花费了我很多时间来维护一个当代的web应用程序。但我现在不需要迁移到Web API，主要是因为我的Web应用程序依赖于会话（您可以将会话引入Web API，但这显然不是RESTful）

因此，我用自己的格式化JSON响应替换了FineUploaderResponse类：

<WebMethod(EnableSession:=True)> _
<ScriptMethod(ResponseFormat:=ResponseFormat.Json)> _
Public Sub UploadPhotos()

    Context.Response.Write(New ResultData().GetResultDataJSON("success", "true"))

End Sub


    Public Function GetResultDataJSON(key As String, value As String) As String
        Dim oBuilder As StringBuilder = New StringBuilder()
        oBuilder.Append("{")
        oBuilder.AppendFormat("""{0}"" : {1}", key, value)
        oBuilder.Append("}")
        Return oBuilder.ToString()
    End Function

_
_
公共子上传照片（）
Write（New ResultData（）.GetResultDataJSON（“success”，“true”））
端接头
公共函数GetResultDataJSON（键作为字符串，值作为字符串）作为字符串
作为StringBuilder的尺寸对象生成器=新StringBuilder（）
oBuilder.Append（“{”）
AppendFormat（“{0}”：{1}”，键，值）
oBuilder.Append（“}”）
返回oBuilder.ToString（）
端函数

下面是我的FineUploader Javascript：

/*=================================================*/
//fineUploaderInitialize
/*=================================================*/
    function createUploader() {
        var uploader = new qq.FineUploader({
            element: document.getElementById('bootstrapped-fine-uploader'),
            request: {
                endpoint: "/Services/PhotosService.asmx/UploadPhotos",
                forceMultipart: true,
                params: { propertyId:$('#hiddenPropertyIdUploadPhotosUserControl').val()},
                customHeaders: { Accept: 'application/json, text/javascript, */*; q=0.01' },
                allowedExtensions: ['gif', 'jpeg', 'jpg', 'png'],
            },
            text: {
                uploadButton: 'Drag & drop photos into this area or CLICK HERE to upload photos'
            },
            template: '<div class="qq-uploader text-center" style="height:70px;background-color:white;border-radius:6px;">' +
                        '<div class="qq-upload-button btn btn-success col-lg-12">{uploadButtonText}</div>' +
                        '<span class="qq-drop-processing"><span>{dropProcessingText}</span><span class="qq-drop-processing-spinner"></span></span>' +
                        '<pre class="qq-upload-drop-area"><span>{dragZoneText}</span></pre>' +
                      '</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) {
                    if (responseJSON.success) {
                        $('#file-' + id).removeClass('alert-info')
                                        .addClass('alert-success')
                                        .html('<i class="glyphicon glyphicon-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="glyphicon glyphicon-exclamation-sign"></i> ' +
                                              'Error with ' +
                                              '“' + fileName + '”: ' +
                                              responseJSON.error);
                    }
                },
                onError: function (id, fileName, errorReason) {
                    if(errorReason == 'XHR returned response code 0'){
                        toastr.error('File Size Cannot Exceed 20 Megabytes');
                    }else{
                        toastr.error(errorReason);
                    }
                }
            }
        });
    }
/*=================================================*/

/*=================================================*/
//精细上载初始化
/*=================================================*/
函数createUploader（）{
var uploader=new qq.FineUploader({
元素：document.getElementById（'bootstrapped-fine-uploader'），
请求：{
端点：“/Services/photoservice.asmx/UploadPhotos”，
forceMultipart:true，
参数：{propertyId:$（'#hiddenPropertyIdUploadPhotosUserControl'）.val（），
customHeaders:{Accept:'application/json，text/javascript，*/*；q=0.01'}，
允许的扩展名：['gif'，'jpeg'，'jpg'，'png']，
},
正文：{
uploadButton:'将照片拖放到此区域或单击此处上载照片'
},
模板：“”+
“{uploadButtonText}”+
“{dropProcessingText}”+
“{dragZoneText}”+
'' +
“
/*=================================================*/
//fineUploaderInitialize
/*=================================================*/
    function createUploader() {
        var uploader = new qq.FineUploader({
            element: document.getElementById('bootstrapped-fine-uploader'),
            request: {
                endpoint: "/Services/PhotosService.asmx/UploadPhotos",
                forceMultipart: true,
                params: { propertyId:$('#hiddenPropertyIdUploadPhotosUserControl').val()},
                customHeaders: { Accept: 'application/json, text/javascript, */*; q=0.01' },
                allowedExtensions: ['gif', 'jpeg', 'jpg', 'png'],
            },
            text: {
                uploadButton: 'Drag & drop photos into this area or CLICK HERE to upload photos'
            },
            template: '<div class="qq-uploader text-center" style="height:70px;background-color:white;border-radius:6px;">' +
                        '<div class="qq-upload-button btn btn-success col-lg-12">{uploadButtonText}</div>' +
                        '<span class="qq-drop-processing"><span>{dropProcessingText}</span><span class="qq-drop-processing-spinner"></span></span>' +
                        '<pre class="qq-upload-drop-area"><span>{dragZoneText}</span></pre>' +
                      '</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) {
                    if (responseJSON.success) {
                        $('#file-' + id).removeClass('alert-info')
                                        .addClass('alert-success')
                                        .html('<i class="glyphicon glyphicon-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="glyphicon glyphicon-exclamation-sign"></i> ' +
                                              'Error with ' +
                                              '“' + fileName + '”: ' +
                                              responseJSON.error);
                    }
                },
                onError: function (id, fileName, errorReason) {
                    if(errorReason == 'XHR returned response code 0'){
                        toastr.error('File Size Cannot Exceed 20 Megabytes');
                    }else{
                        toastr.error(errorReason);
                    }
                }
            }
        });
    }
/*=================================================*/