为什么会有无效的 JSON 格式？
我正在构建JSON对象，并使用JQueryAjax将其传递给服务器。
data: "{'authorID' : '" + authorID +
"', 'title' : '" + encodeURIComponent(blogTitle) +
"', 'msg' : '" + encodeURIComponent(blogBody) +
"', 'preview' : '" + encodeURIComponent(mediaContent) +
"', 'layoutID' : '" + previewLayoutId +
"', 'threadID' : '" + threadID + "'}"
但是，当我的blogBody变量包含'时，代码就会显示错误消息：
{"Message":"Invalid object passed in, \u0027:\u0027 or \u0027}\u0027 expected. (107): {\u0027authorID\u0027 : \u0027148385\u0027, \u0027title\u0027 : \u0027123213\u0027, \u0027msg\u0027 : \u0027%3Cp%3Eqqq%3C%2Fp%3E%3Cp%3E%3Cbr%3E%3C%2Fp%3E%3Cp%3E\u0027\u0027\u0027\u0027%3C%2Fp%3E\u0027, \u0027preview\u0027 : \u0027\u0027, \u0027layoutID\u0027 : \u00271\u0027, \u0027threadID\u0027 : \u00270\u0027}","StackTrace":" at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeDictionary(Int32 depth)
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"}
有人能说出错误在哪里，以及如何修复吗？
In JSON, the keys must be quoted with double quotes ("), not single quotes ('). Similarly, string values must be in double, not single, quotes. You're using single quotes. For example, around authorId and around the text of the title.
So at a minimum, you need to swap those quotes around, e.g.:
data: '{"authorID" : "' + authorID +
'", "title" : "' + encodeURIComponent(blogTitle) +
'", "msg" : "' + encodeURIComponent(blogBody) +
'", "preview" : "' + encodeURIComponent(mediaContent) +
'", "layoutID" : "' + previewLayoutId +
'", "threadID" : "' + threadID + '"}'
As T.J. Crowder said, your elements should have double quotes, and to make sure your format is correct, you can always validate your json array here (I always do):
Also you better use this to generate the json arrays
Use this instead:
JSON.stringify(object)
I had the same issue when using Microsoft's JavaScriptSerializer() function for turning objects into JSON.
It would convert apostrophes to \u0027, but jqGrid would happily continue to display them as \u0027:
My solution was simply to stop using Microsoft's JavaScriptSerializer() function..
string JSON = new JavaScriptSerializer().Serialize(myListOfObjects).ToString();
..and switch to JSON.Net..
string JSON = JsonConvert.SerializeObject(myListOfObjects);
JSON.Net also avoids the issues with converting DateTimes to JSON. Microsoft's version uses it's own nasty formatting for dates, eg:
/Date(1355496152000)/
Errr, yeah. Time to get Googling again. Or use JSON.Net !