如何从javascript调用WCF服务？

Question

我正在尝试使用jQuery从ajax调用调用WCF服务.我设法从SOAP-UI和Excel/VBA调用WCF.我的问题来自发送的OPTIONS请求,后面没有POST:

• 如果我将URL设置为http://mywcf/service.svc,则发送OPTIONS并且我获得400 Bad Request状态并且不发送POST请求.在这种情况下,HTTP/1.1标头中缺少(与SOAP-UI标头比较).
• 如果我将URL设置为http://mywcf/service.svc HTTP/1.1,则发送OPTIONS并获得200 OK状态但不发送POST请求.在这种情况下,HTTP/1.1似乎被解释为文件名.

有人能告诉我如何从javascript调用WCF上的POST操作并添加HTTP/1.1标题而不破坏服务URL吗？

这是我的ajax调用的摘录:

var soapData = ''
        +'<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:mic="http://microsoft.wcf.documentation">'
        +'    <soap:Header xmlns:wsa="http://www.w3.org/2005/08/addressing" xmlns:wsrm="http://docs.oasis-open.org/ws-rx/wsrm/200702">'
        +'        <wsrm:Sequence>'
        +'            <wsrm:Identifier>s:Sender a:ActionNotSupported</wsrm:Identifier>'
        +'            <wsrm:MessageNumber>1</wsrm:MessageNumber>'
        +'        </wsrm:Sequence>'
        +'        <wsa:Action>http://schemas.xmlsoap.org/ws/2005/02/rm/CreateSequence</wsa:Action>'
        +'        <wsa:ReplyTo>'
        +'            <wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address>'
        +'        </wsa:ReplyTo>'
        +'        <wsa:MessageID>uuid:'+ MsgUid +'</wsa:MessageID>'
        +'        <wsa:To>'+ Url +'</wsa:To>'
        +'    </soap:Header>'
        +'    <soap:Body xmlns:wsrm="http://schemas.xmlsoap.org/ws/2005/02/rm">'
        +'        <wsrm:CreateSequence>'
        +'            <wsrm:AcksTo xmlns:wsa="http://www.w3.org/2005/08/addressing">'
        +'                <wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address>'
        +'            </wsrm:AcksTo>'
        +'            <wsrm:Offer>'
        +'                <wsrm:Identifier>urn:soapui:'+ SeqUid +'</wsrm:Identifier>'
        +'            </wsrm:Offer>'
        +'        </wsrm:CreateSequence>'
        +'    </soap:Body>'
        +'</soap:Envelope>';

$.ajax({
    type: 'POST',
    url: 'http://mywcf/service.svc', // with or without +' HTTP/1.1'
    data: soapData,
    contentType: 'application/soap+xml;charset=UTF-8',
    dataType: 'xml'
});

我的WCF中的值web.config:

<system.webServer>
    <httpProtocol>
        <customHeaders>
            <add name="Access-Control-Allow-Origin" value="*" />
            <add name="Access-Control-Allow-Methods" value="POST, OPTIONS" />
            <add name="Access-Control-Allow-Headers" value="*" />
        </customHeaders>
    </httpProtocol>
</system.webServer>

Answer 1

添加 webHttpBinding 端点

    <services>
  <service name="Contract">
    <endpoint address="json" binding="webHttpBinding"  contract="IContract" bindingConfiguration="ActionsHttpBinding" behaviorConfiguration="ActionrestfulBehavior"/>
  </service>

然后从 ajax 调用端点作为 post 或 get，请参见下面的示例：

    var data = JSON.stringify({
    param1: val1,
    param2: val2
});
$.ajax({
    url: "http://mywcf/service.svc/json/FunctionName",
    type: "POST",
    data: data,
    contentType: "application/json; charset=utf-8",
    dataType: "json",
    processData: true
}).then(function (rsutlt) {

}).fail(function (fail) {
});