[英]Calling WCF service from winform/ASP.net jquery ajax
嘿,我有以下代码,这些代码通过jQuery AJAX调用将json字符串发送到我的asp.net代码后面,并将其放入其类名中。
AJAX的代码:
$("#WCF").on("click", function () {
var scannerSettings = {
"FileType": "TEST1",
"FileName": "C:\Program Files (x86)\somethibg\Sample\ScanTest\VCS 2008\bin\Debug\image#####",//$('').text(),
"JpegQuality": "TEST2",
"ScanContinue": false,
"Resolution": "TEST3",
"Rotation": "TEST4",
"PaperSupply": "TEST5",
"PaperSize": "TEST6",
"Orientation": "TEST7",
"CustomPaperWidth": 8.268,
"CustomPaperLength": 11.693,
"JobControl": "TEST8",
"PunchHoleRemoval": "TEST9"
};
$.ajax({
type : "POST",
contentType : "application/json",
dataType : "json",
url : ajaxDirPath + "WCF",
data : JSON.stringify({ "obj": scannerSettings }),
cache : false,
success : ServiceSucceeded,
error : ServiceFailed
});
});
代码背后的ASP.net代码(HomeController.cs):
[HttpPost]
[Audit(EventTypeName = "{controller}/{action} ({verb})", IncludeHeaders = true, IncludeModel = true)]
public string WCF(scannerSettings obj)
{
Dictionary<string, string> resultsBack = new Dictionary<string, string>();
EndpointAddress address = new EndpointAddress(new Uri(ConfigurationManager.AppSettings["EndpointAddress"].ToString()));
NetTcpBinding binding = new NetTcpBinding();
ChannelFactory<IService1> factory;
IService1 SvcCall;
binding.Security.Mode = SecurityMode.Message;
binding.SendTimeout = new TimeSpan(0, 1, 0);
factory = new ChannelFactory<IService1>(binding, address);
SvcCall = factory.CreateChannel();
string scanerData = SvcCall.Scan(obj);
if (scanerData != null)
{
resultsBack.Add("dback", "GOOD");
resultsBack.Add("img", "");
resultsBack.Add("filename", obj.FileName);
}
return JsonConvert.SerializeObject(resultsBack, Formatting.Indented);
}
WCF代码:
public string Scan(scannerSettings obj)
{
TestDelegate d = new TestDelegate(startScan);
IAsyncResult ar = d.BeginInvoke(obj, null, null);
string result = d.EndInvoke(ar);
return result;
}
从上面的图片中可以看到,它可以从AJAX-> HomeController.cs发送数据,但是一旦我像AJAX-> HomeController.cs-> WCF一样再次将其发送到WCF服务器,它就不再具有所需的值-它们都为null 。
json类:
[DataContract]
public class scannerSettings
{
[DataMember]
public string FileType { get; set; }
[DataMember]
public string FileName { get; set; }
[DataMember]
public string JpegQuality { get; set; }
[DataMember]
public bool ScanContinue { get; set; }
[DataMember]
public string Resolution { get; set; }
[DataMember]
public string Rotation { get; set; }
[DataMember]
public string PaperSupply { get; set; }
[DataMember]
public string PaperSize { get; set; }
[DataMember]
public string Orientation { get; set; }
[DataMember]
public string CustomPaperWidth { get; set; }
[DataMember]
public string CustomPaperLength { get; set; }
[DataMember]
public string JobControl { get; set; }
[DataMember]
public string PunchHoleRemoval { get; set; }
}
我正在通过NetTcpBinding通过以下地址本地连接到WCF服务:
net.tcp://本地主机:2202 / theService / tech6140
有人知道这是为什么以及如何解决?
如果类的名称空间在服务器和客户端上不同,则WCF服务可能无法将请求对象识别为scannerSettings
。 几周前我犯了这个错误。
在服务器上,我有请求对象
Acme.Service.RequestObject
当我生成服务代理时,它包含了请求对象。 我出于审美原因将客户端上的命名空间更改为
SomeCoolNamespace.Service.RequestObject
调用服务时,服务将收到一个请求对象,该请求对象的名称空间与预期的名称空间不匹配,并且参数将为null。
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