我正在使用
jquery来调用webservice,它返回一个包含几个表的数据集.
这工作正常,直到我需要设置我的webmethod接受参数.我在客户端反映了这一点
data: "{paramname:'" + paramval+ "'}",
我现在在webmethod返回时收到以下错误.无论数据集中返回什么,都会发生这种情况
Error:{“Message”:”A circular reference was detected while serializing
an object of type
u0027System.Globalization.CultureInfou0027.”,”StackTrace”:” at
System.Web.Script.Serialization.JavaScriptSerializer.SerializeValueInternal(Object
o,StringBuilder sb,Int32 depth,Hashtable objectsInUse,
SerializationFormat serializationFormat)rn at …etc
当webmethod没有参数时,客户端js看起来与下面相同,除了data:line被删除.
function ClientWebService(paramval){
$.ajax({
type: "POST",url: "WebService1.asmx/webmethodName",data: "{paramname:'" + paramval+ "'}",contentType: "application/json; charset=utf-8",dataType: "json",success: function(msg) {
ParseResult(msg.d);
},error: function(err) {
if (err.status == 200) {
ParseResult(err);
}
else { alert('Error:' + err.responseText + ' Status: ' + err.status); }
}
});
}
编辑:根据建议将请求更改为
data: {paramname: paramval},
产生以下错误.
Error:{“Message”:”Invalid JSON primitive: paramval.”,”StackTrace”:”
at
System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()rn
at
System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32
depth)rn at
System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String
input,Int32 depthLimit,JavaScriptSerializer serializer)rn at
System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer
serializer,String input,Type type,Int32 depthLimit)rn at
System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String
input)rn at
System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext
context,JavaScriptSerializer serializer)rn at
System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData
methodData,HttpContext context)rn at
System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext
context,WebServiceMethodData
methodData)”,”ExceptionType”:”System.ArgumentException”} Status: 500