Ajax处理中的“无效JSON原语”
Ajax处理中的“无效JSON原语”
提问于 2010-03-15 16:43:02
我在来自jQuery的ajax调用中收到一个错误。
下面是我的jQuery函数：
function DeleteItem(RecordId, UId, XmlName, ItemType, UserProfileId) {
var obj = {
RecordId: RecordId,
UserId: UId,
UserProfileId: UserProfileId,
ItemType: ItemType,
FileName: XmlName
};
var json = Sys.Serialization.JavaScriptSerializer.serialize(obj);
$.ajax({
type: "POST",
url: "EditUserProfile.aspx/DeleteRecord",
data: json,
contentType: "application/json; charset=utf-8",
dataType: "json",
async: true,
cache: false,
success: function(msg) {
if (msg.d != null) {
RefreshData(ItemType, msg.d);
}
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert("error occured during deleting");
}
});
}这是我的WebMethod
[WebMethod]
public static string DeleteRecord(Int64 RecordId, Int64 UserId, Int64 UserProfileId, string ItemType, string FileName) {
try {
string FilePath = HttpContext.Current.Server.MapPath(FileName);
XDocument xmldoc = XDocument.Load(FilePath);
XElement Xelm = xmldoc.Element("UserProfile");
XElement parentElement = Xelm.XPathSelectElement(ItemType + "/Fields");
(from BO in parentElement.Descendants("Record")
where BO.Element("Id").Attribute("value").Value == RecordId.ToString()
select BO).Remove();
XDocument xdoc = XDocument.Parse(Xelm.ToString(), LoadOptions.PreserveWhitespace);
xdoc.Save(FilePath);
UserInfoHandler obj = new UserInfoHandler();
return obj.GetHTML(UserId, UserProfileId, FileName, ItemType, RecordId, Xelm).ToString();
} catch (Exception ex) {
HandleException.LogError(ex, "EditUserProfile.aspx", "DeleteRecord");
}
return "success";
}有人能告诉我我的代码出了什么问题吗？
我得到了这个错误：
{
"Message":"Invalid JSON primitive: RecordId.",
"StackTrace":"
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)
at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)
at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)
at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input)
at System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext context, JavaScriptSerializer serializer)
at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)
at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)",
"ExceptionType":"System.ArgumentException"
}回答 11
Stack Overflow用户
回答已采纳
发布于 2010-03-15 17:30:18
只需猜测变量json后面包含的内容
var json = Sys.Serialization.JavaScriptSerializer.serialize(obj);?如果它是一个有效的json对象，比如{"foo":"foovalue", "bar":"barvalue"}，那么jQuery可能不会将其作为json数据发送，而是将其序列化为foor=foovalue&bar=barvalue，因此您会得到错误"Invalid JSON primitive: foo"
请尝试将数据设置为字符串
$.ajax({
...
data: '{"foo":"foovalue", "bar":"barvalue"}', //note the additional quotation marks
...
})这样，jQuery应该保留数据，并按原样将字符串发送到服务器，服务器应该允许ASP.NET解析json服务器端。
Stack Overflow用户
发布于 2011-11-26 07:38:05
使用
data : JSON.stringify(obj)在上面的情况下，我相信应该是可行的。
注意:您应该添加json2.js库所有浏览器都不支持JSON对象(IE7-) Difference between json.js and json2.js
Stack Overflow用户
发布于 2016-09-07 23:40:19
它的工作原理是这样的
data: JSON.stringify({'id':x}),页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/2445874
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