.net 如何在使用 WCF（或 WSE 3）的 Web 服务客户端应用程序的请求和响应中混合消息编码类型（文本/MTOM）？
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How do I mix message encoding types (Text/MTOM) in the Request & Response of a Web Service client application using WCF (or WSE 3)?
提问by komma8.komma1
Here is my problem. I am hitting a web service (hosted on a Java based server) that will only accept text encoded Requests, but it returns MTOM Responses. What I've found is that if I set the web service to RequireMtom, it sends an Mtom request! Unfortunately, the server chokes on an Mtom request and returns a 500 error. However, if I set it to Text message encoding, the response comes back correctly with a multipart MIME (MTOM) response that errors out the Microsoft Web Service API (sample error below). It's expecting a text encoded response because the request was text encoded. I would like to RequireMtom on the response only. Can anyone help me here?
这是我的问题。我正在访问一个仅接受文本编码请求的 Web 服务（托管在基于 Java 的服务器上），但它返回 MTOM 响应。我发现如果我将 Web 服务设置为 RequireMtom，它会发送一个 Mtom 请求！不幸的是，服务器在 Mtom 请求上阻塞并返回 500 错误。但是，如果我将其设置为文本消息编码，则响应会正确返回，并带有多部分 MIME (MTOM) 响应，该响应错误出 Microsoft Web 服务 API（下面的示例错误）。它期待文本编码的响应，因为请求是文本编码的。我只想在响应中使用 RequireMtom。有人能帮我一下吗？
As you can see in the error below (which occurs with the standard web services API, WCF or WSE3), when I send the request with text encoding, the response comes back correctly with all the data in a multipart/related response, but the .net framework chokes!
正如您在下面的错误中看到的（发生在标准 Web 服务 API、WCF 或 WSE3）中，当我发送带有文本编码的请求时，响应以多部分/相关响应中的所有数据正确返回，但是.net 框架窒息！
ERROR MESSAGE WITH WSE:
WSE 的错误消息：
Client found response content type of 'multipart/related; type="text/xml"; start="<1AE0B46A85B0186B5D136D12E1EE286E>"; boundary="----=_Part_209564_1891070135.1226526701833"', but expected 'text/xml'.
The request failed with the error message:
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at TestWseService.AdesaJasperWse.ManagementServiceService.runReport(String requestXmlString) in C:\Documents and Settings\xxx\My Documents\Visual Studio 2005\Projects\TestWseService\Web References\AdesaJasperWse\Reference.cs:line 229
at TestWseService.Form1.buttonRunService_Click(Object sender, EventArgs e) in C:\Documents and Settings\xxx\My Documents\Visual Studio 2005\Projects\TestWseService\Form1.cs:line 42
ERROR MESSAGE WITH WCF
WCF 的错误消息
The content type multipart/related; type="text/xml"; start="<30ED8FE3004CDA67723CC7164A6CFEEC>"; boundary="----=_Part_209545_389093169.1226526546805" of the response message does not match the content type of the binding (text/xml; charset=utf-8). If using a custom encoder, be sure that the IsContentTypeSupported method is implemented properly. The first 1024 bytes of the response were:
Server stack trace:
at System.ServiceModel.Channels.HttpChannelUtilities.ValidateRequestReplyResponse(HttpWebRequest request, HttpWebResponse response, HttpChannelFactory factory, WebException responseException)
at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest.WaitForReply(TimeSpan timeout)
at System.ServiceModel.Channels.RequestChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)
Request (with Text Message Encoding):
请求（使用文本消息编码）：
POST /jasperserver-pro/services/repository HTTP/1.1
Content-Type: text/xml; charset=utf-8
VsDebuggerCausalityData: uIDPo7V2+runH+xGudbec7ueUU8AAAAA7H9vL3stlkCBofMgLa5DWkQOHHpBdy1Ek6P6nXx7FpsACQAA
SOAPAction: ""
Authorization: Basic amFzcGVyYWRtaW46akBzcDNyQGRtJW4=
Host: reports.dev.xxx.com
Content-Length: 789
Expect: 100-continue
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><q1:runReport xmlns:q1="http://axis2.ws.jasperserver.jaspersoft.com"><requestXmlString xsi:type="xsd:string"><request operationName="runReport" locale="en">
<argument name="RUN_OUTPUT_FORMAT">HTML</argument>
<resourceDescriptor name="" wsType="" uriString="/BusinessIntelligence/MOS/Reports/dotnettest" isNew="false">
<label>null</label>
<parameter name="testparam">1</parameter>
</resourceDescriptor>
</request></requestXmlString></q1:runReport></s:Body></s:Envelope>
Response (with Text Message Encoding):
响应（使用文本消息编码）：
HTTP/1.1 200 OK
Date: Wed, 12 Nov 2008 21:49:04 GMT
Server: IBM_HTTP_Server
Surrogate-Control: no-store
Set-Cookie: JSESSIONID=0000z5pH1xEMyulueASctjru2qe:13kftunf6; Path=/
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Cache-Control: no-cache="set-cookie, set-cookie2"
Content-Length: 2580
Content-Type: multipart/related; type="text/xml"; start="<30ED8FE3004CDA67723CC7164A6CFEEC>"; boundary="----=_Part_209545_389093169.1226526546805"
Content-Language: en-US
------=_Part_209545_389093169.1226526546805
Content-Type: text/xml; charset=UTF-8
Content-Transfer-Encoding: binary
Content-Id: <30ED8FE3004CDA67723CC7164A6CFEEC>
<?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soapenv:Body><ns1:runReportResponse soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="http://axis2.ws.jasperserver.jaspersoft.com"><runReportReturn xsi:type="xsd:string"><?xml version="1.0" encoding="UTF-8"?>
<operationResult version="2.0.1">
<returnCode><![CDATA[0]]></returnCode>
</operationResult>
</runReportReturn></ns1:runReportResponse></soapenv:Body></soapenv:Envelope>
------=_Part_209545_389093169.1226526546805
Content-Type: text/html
Content-Transfer-Encoding: binary
Content-Id: <report>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<style type="text/css">
a {text-decoration: none}
</style>
</head>
<body text="#000000" link="#000000" alink="#000000" vlink="#000000">
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr><td width="50%"> </td><td align="center">
<a name="JR_PAGE_ANCHOR_0_1"/>
<table style="width: 595px" cellpadding="0" cellspacing="0" border="0" bgcolor="white">
<tr>
<td><img alt="" src="images/px" style="width: 35px; height: 1px;"/></td>
<td><img alt="" src="images/px" style="width: 189px; height: 1px;"/></td>
<td><img alt="" src="images/px" style="width: 253px; height: 1px;"/></td>
<td><img alt="" src="images/px" style="width: 118px; height: 1px;"/></td>
</tr>
<tr valign="top">
<td colspan="4"><img alt="" src="images/px" style="width: 595px; height: 20px;"/></td>
</tr>
<tr valign="top">
<td><img alt="" src="images/px" style="width: 35px; height: 30px;"/></td>
<td valign="middle"><span style="font-family: Arial; font-size: 12.0px; font-weight: bold;">The value of the parameter is:</span></td>
<td valign="middle"><span style="font-family: Arial; background-color: #FFFFFF; font-size: 12.0px; font-weight: bold;">1</span></td>
<td><img alt="" src="images/px" style="width: 118px; height: 30px;"/></td>
</tr>
<tr valign="top">
<td colspan="4"><img alt="" src="images/px" style="width: 595px; height: 20px;"/></td>
</tr>
</table>
</td><td width="50%"> </td></tr>
</table>
</body>
</html>
------=_Part_209545_389093169.1226526546805--
Request (with Mtom Message Encoding):
请求（使用 Mtom 消息编码）：
POST /jasperserver-pro/services/repository HTTP/1.1
MIME-Version: 1.0
Content-Type: multipart/related; type="application/xop+xml";start="<http://tempuri.org/0>";boundary="uuid:fafcdca7-94f7-4884-a8d4-5c6d50dbe8ef+id=1";start-info="text/xml"
VsDebuggerCausalityData: uIDPo+cN2kKX2odFuUVaER0j60gAAAAAmfYaGH7Ow0WQOcwhebh5pqmDl29omcVOtwVGa10IWewACQAA
SOAPAction: ""
Authorization: Basic amFzcGVyYWRtaW46akBzcDNyQGRtJW4=
Host: reports.dev.xxx.com
Content-Length: 1031
Expect: 100-continue
--uuid:fafcdca7-94f7-4884-a8d4-5c6d50dbe8ef+id=1
Content-ID: <http://tempuri.org/0>
Content-Transfer-Encoding: 8bit
Content-Type: application/xop+xml;charset=utf-8;type="text/xml"
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Body s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><q1:runReport xmlns:q1="http://axis2.ws.jasperserver.jaspersoft.com"><requestXmlString xsi:type="xsd:string"><request operationName="runReport" locale="en">
<argument name="RUN_OUTPUT_FORMAT">HTML</argument>
<resourceDescriptor name="" wsType="" uriString="/BusinessIntelligence/MOS/Reports/dotnettest" isNew="false">
<label>null</label>
<parameter name="testparam">1</parameter>
</resourceDescriptor>
</request></requestXmlString></q1:runReport></s:Body></s:Envelope>
--uuid:fafcdca7-94f7-4884-a8d4-5c6d50dbe8ef+id=1--
Response (with Mtom Message Encoding):
响应（使用 Mtom 消息编码）：
HTTP/1.1 500 Internal Server Error
Date: Wed, 12 Nov 2008 21:47:42 GMT
Server: IBM_HTTP_Server
Surrogate-Control: no-store
$WSEP:
Set-Cookie: JSESSIONID=0000_iMrdp-TnK9FG3jZFzjx_hA:13kftunf6; Path=/
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Cache-Control: no-cache="set-cookie, set-cookie2"
Content-Length: 12
Connection: close
Content-Type: text/html;charset=UTF-8
Content-Language: en-US
Error 500:
Here is a link that supports the theory that Microsoft does not support mixed encodings:
这是一个支持 Microsoft 不支持混合编码理论的链接：
WSE 3.0: MTOM response mandatory for MTOM request?
UHG!
呃！
采纳答案by Eric Schlosser
Yes you can send a text message and get an mtom reply(or vise versa)with WCF.
是的，您可以使用 WCF 发送文本消息并获得 mtom 回复（反之亦然）。
see...
看...
http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/480f1bc4-1fc4-40e9-a2ed-efcf3009d6ef
http://social.msdn.microsoft.com/Forums/en-US/wcf/thread/480f1bc4-1fc4-40e9-a2ed-efcf3009d6ef
回答by Wagner Silveira
I researched a bit about this and the bad news is that from WCF point of view the request and response MUST use the same enconding. So yeah, the answer above is quite correct. You have to organize with service provider to enable MTOM on both request and response. The MTOM request will not have any impact on his application, apart from changing the SOAP mime-type, as far as I know.
我对此进行了一些研究，坏消息是，从 WCF 的角度来看，请求和响应必须使用相同的编码。所以是的，上面的答案是非常正确的。您必须与服务提供商一起组织以在请求和响应上启用 MTOM。据我所知，除了更改 SOAP mime-type 之外，MTOM 请求不会对他的应用程序产生任何影响。
回答by Siddharth Sawe
Yes WCF has that mandated requirement and NO, because you can work around it like i did.
是的，WCF 有这个强制要求，不，因为您可以像我一样解决它。
I wrote a MultiContentTypeMessageEncoder that encapsulates 3 different encoders text, mtom and fi. I also plan to encapsulate a gpb encoder if possible and if there is a good reason to do so, in the future
我编写了一个 MultiContentTypeMessageEncoder，它封装了 3 个不同的编码器 text、mtom 和 fi。如果可能的话，我还计划封装一个 gpb 编码器，如果有充分的理由，在未来
回答by komma8.komma1
Here is a reply I got on another forum. it basically says that the problem is with Axis2 on the Java side. Unfortunately, that is not under my control in this case.
这是我在另一个论坛上得到的回复。它基本上说问题出在 Java 端的 Axis2 上。不幸的是，在这种情况下，这不在我的控制之下。
cherry111 - Posted on Saturday, November 15, 2008 12:52:08 AM
You need change the configuration on your AXIS2 web service. You may know you can enable MTOM at two places. One is in service.xml and the other is in the axis.xml. Java recommends you set it in service.xml, but .net wse3.0 client does not like it. If you enable MTOM in axis.xml, it should work.
cherry111 - 发布于 2008 年 11 月 15 日星期六上午 12:52:08
您需要更改 AXIS2 Web 服务上的配置。您可能知道可以在两个地方启用 MTOM。一个在service.xml 中，另一个在axis.xml 中。Java 建议在service.xml 中设置，但.net wse3.0 客户端不喜欢。如果您在axis.xml 中启用MTOM，它应该可以工作。
回答by Zayani Chiheb
[WSE 3.0] You can define a new class that inherits from your WSE3 proxy object with a single override method GetWebResponse.
[WSE 3.0] 您可以使用单个覆盖方法 GetWebResponse 定义一个从 WSE3 代理对象继承的新类。
In GetWebResponse method, you can simply choose if you want to use the mtom encoding according to the response's content-type.
在 GetWebResponse 方法中，您可以根据响应的内容类型简单地选择是否要使用 mtom 编码。
After that, you have to use this proxy class instead of the generated one.
之后，您必须使用此代理类而不是生成的代理类。
PS: The WSE3 proxy class have to be generated using wsewsdl3 as a WebClient (add this option /type:webClient to the commend line).
PS：必须使用 wsewsdl3 作为 WebClient 生成 WSE3 代理类（将此选项 /type:webClient 添加到推荐行）。
Reference: http://www.codeproject.com/Tips/46257/Solution-to-WSE-error-for-WSE-clients-needing.
参考：http: //www.codeproject.com/Tips/46257/Solution-to-WSE-error-for-WSE-clients-needing。
