与合同：
namespace Acme.FooServices
{
[ServiceContract]
public interface IFooService
{
[OperationContract]
[WebInvoke(Method = "POST",ResponseFormat = Webmessageformat.Json,RequestFormat = Webmessageformat.Json,BodyStyle = WebMessageBodyStyle.Bare)]
FooMessageType Foo(string name);
}
[DataContract]
public class FooMessageType
{
string _name;
string _date;
[DataMember]
public string Name
{
get { return _name; }
set { _name = value; }
}
[DataMember]
public string Date
{
get { return _date; }
set { _date = value; }
}
}
}
并实施：
using System;
using System.ServiceModel.Activation;
namespace Acme.FooServices
{
[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.required)]
public class FooService : IFooService
{
public FooMessageType Foo(string name)
{
string l_name = (String.IsNullOrWhiteSpace(name)) ? "Anonymous" : name;
return new FooMessageType {Name = l_name,Date = DateTime.Now.ToString("MM-dd-yyyy h:mm:ss tt")};
}
}
}
在web.config中配置为：
<system.serviceModel>
<services>
<service name="Acme.FooServices.FooService">
<endpoint address="" behaviorConfiguration="Acme.FooBehavIoUr" binding="webHttpBinding" contract="Acme.FooServices.IFooService" />
</service>
</services>
<behaviors>
<endpointBehaviors>
<behavior name="Acme.FooBehavIoUr">
<webHttp />
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
我试图通过jQuery从页面调用Foo：
<script type="text/javascript" language="javascript">
$(document).ready(function () {
$("#msgButton").click(function () {
var params = {};
params.name = $("#nameTextBox").val();
$.ajax({
type: 'POST',url: "http://acme.com/wcfsvc/FooService.svc/Foo",data: JSON.stringify(params),contentType: 'application/json; charset=utf-8',success: function (response,status,xhr) { alert('success: ' + response); },error: function (xhr,error) { alert("Error\n-----\n" + xhr.status + '\n' + xhr.responseText); },complete: function (jqXHR,status) { alert('Status: ' + status + '\njqXHR: ' + JSON.stringify(jqXHR)); }
});
});
});
</script>
但是我收到一个400错误请求错误消息“服务器遇到处理请求的错误.异常消息是’反序列化System.String类型的对象的错误.从命名空间’ ‘expected.从命名空间找到元素’name’.
我错过了什么吗？
解决方法
你的参数是对象,它形成{“name”：“someValue”} JSON字符串.如果你说消息体的样式是裸的,我想你的服务期望像这样：
[DataContract]
public class SomeDTO
{
[DataMember(Name = "name")]
public string Name { get; set; }
}
并且因为您的操作应定义为：
[OperationContract] [WebInvoke(Method = "POST",BodyStyle = WebMessageBodyStyle.Bare)] FooMessageType Foo(SomeDTO data);
如果您希望当前的代码可以工作,您应该将其更改为：
[OperationContract] [WebInvoke(Method = "POST",BodyStyle = WebMessageBodyStyle.WrappedRequest)] FooMessageType Foo(SomeDTO data);