(在年底更新)
我正在使用不熟悉的技术的想法。我已经写了几个WCF服务,但我从来没有做过任何高级配置。这是我第一次深入jQuery。前提是我创建了一个WCF服务来获取分支信息,以便通过jQuery进行检索。
我的第一次搜索结果显示此页:http://www.codeproject.com/KB/aspnet/WCF_JQUERY_ASMX.aspx#2我正在使用它作为我的代码的基础。我最初是作为一个跨站点设置开始的,我摆脱了这个设置,看看我是否可以让这个工作正常工作。我搜索堆栈溢出,并没有任何帖子解决我的400错误的请求问题。从我的web.config
代码:从我的界面
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior name="GeoDataBehavior">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
<behavior name="">
<serviceMetadata httpGetEnabled="true" />
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="GDEPBehavior">
<webHttp />
</behavior>
</endpointBehaviors>
</behaviors>
<bindings>
<webHttpBinding>
<binding name="GDBinding" crossDomainScriptAccessEnabled="true"/>
</webHttpBinding>
</bindings>
<services>
<service behaviorConfiguration="GeoDataBehavior" name="GeoDataService">
<endpoint address=""
binding="webHttpBinding" contract="IGeoDataService"
behaviorConfiguration="GDEPBehavior"/>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
</service>
</services>
代码:
[ServiceContract]
public interface IGeoDataService
{
[OperationContract]
[WebInvoke(Method = "POST",
BodyStyle = WebMessageBodyStyle.Wrapped,
ResponseFormat = WebMessageFormat.Json)]
List<BranchData> GetBranches();
}
// Use a data contract as illustrated in the sample below to add composite types to service operations.
[DataContract]
public class BranchData
{
[DataMember]
public string BranchNumber { get; set; }
[DataMember]
public string BranchName { get; set; }
[DataMember]
public string StreetAddress { get; set; }
[DataMember]
public string City { get; set; }
[DataMember]
public string Zip { get; set; }
[DataMember]
public string State { get; set; }
[DataMember]
public string Phone { get; set; }
[DataMember]
public string County { get; set; }
}
jQuery脚本:
<script type="text/javascript" language="javascript" src="http://ajax.aspnetcdn.com/ajax/jquery/jquery-1.6.1.js">
</script>
<script type="text/javascript" language="javascript">
/* help from http://www.codeproject.com/KB/aspnet/WCF_JQUERY_ASMX.aspx
*/
var varType;
var varUrl;
var varData;
var varContentType;
var varDataType;
var varProcessData;
function CallService() {
// Thank you Bing: http://blueonionsoftware.com/blog.aspx?p=03aff202-4198-4606-b9d6-686fd13697ee
jQuery.support.cors = true;
$.ajax({
type: varType,
url: varUrl,
data: null,
crossDomain: true,
contentType: varContentType,
dataType: varDataType,
processdata: varProcessData,
success: function (msg) {
ServiceSucceeded(msg);
},
error: ServiceFailed
});
/*
$.getJSON(varUrl, null, function (msg) {
ServiceSucceeded(msg);
});
*/
}
function GetBranchDataJson() {
varType = "POST";
varUrl = "GeoDataService.svc/GetBranches";
varData = "";
varContentType = "application/json; charset=utf-8";
varDataType = "json";
varProcessData = true;
CallService();
}
function ServiceSucceeded(result) {
var ddlResult = document.getElementById("ddlResult");
for (var j = ddlResult.options.length - 1; j >= 0; j--) { ddlResult.remove(j); }
for (var i = 0; i < result.length; i++) {
var opt = document.createElement("option");
opt.text = result[i].BranchName;
ddlResult.options.add(opt);
}
}
function ServiceFailed(jqXHR, errorType, errorThrown) {
alert('error!\n' + jqXHR + '\n' + errorType + '\n' + errorThrown);
}
</script>
<input name="WTF" type="button" onclick="GetBranchDataJson()" />
你会注意到我m使用jQuery 1.6.1,而不是1.3 fr om教程。该教程在我的盒子上运行良好,并按预期做一切。不幸的是,我的代码没有。我感谢你们可以提供的任何帮助。
哦,这里是从提琴手的请求的副本:
POST http://localhost:16062/GeoDataService.svc/GetBranches HTTP/1.1
Accept: application/json, text/javascript, */*; q=0.01
Content-Type: application/json; charset=utf-8
Referer: http://localhost:16062/Default.aspx
Accept-Language: en-us
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)
Host: localhost:16062
Content-Length: 0
Connection: Keep-Alive
Pragma: no-cache
更新:好吧,我通过“{}”的数据查询(显然这是通过什么来的正确方法一种不带参数的方法),现在我得到了Unsupported Media Type。跟踪异常是:System.ServiceModel.ProtocolException:Content Type application/json; charset = utf-8被发送到期望text/xml的服务;字符集= UTF-8。
因此,只是为了测试,我添加了一个参数给我的GetBranches方法,布尔测试。我更新了我的$ .ajax调用以传入数据:'{“Test”:“true”}',现在我在跟踪中出现错误:Content Type application/json; charset = utf-8被发送到期望text/xml的服务;字符集= UTF-8。我添加了ReceiveFormat = Json,但仍然出现错误。我需要改变web.config中的某些东西吗?另外,是否有一个正确的方法将null传递给没有参数的方法(我的原始GetBranches)? –
您可以检查web.config中的服务名称是否与GeoDataService.svc文件中的服务名称匹配?他们必须是完全一样的(即,带名称空间的类名) – carlosfigueira
感谢您的想法,卡洛斯。我的命名空间是GeoDataServices,我的服务名称是GeoDataService。当我将web.config中的服务名称更改为GeoDataServices.IGeoDataService时,它会引发同样的错误(当我将其更改为GeoDataServices.GeoDataService时,它告诉我使用跟踪中的接口)。所以,任一配置都会返回相同的新ProtocolException。 –