Question

我使用相同的类和方法通过两个特别编写的API下载数据。其中一个API工作正常，但另一个产生错误3840.

以下是代码：

 +(NSDictionary *)executeSearchRequest:(NSString *)usingThisURL
 {
 NSError* error = nil;
 usingThisURL = [NSString stringWithFormat:@"%@&format=json&nojsoncallback=1", usingThisURL];
NSLog(@"URL Sent to Athletic.net: %@", usingThisURL);
// usingThisURL = [usingThisURL stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
 // Preceding line makes one call fail and does not correct problem with other.
 NSLog(@"[%@ %@] sent %@", NSStringFromClass([self class]), NSStringFromSelector(_cmd), usingThisURL);
 NSData *jsonData = [[NSString stringWithContentsOfURL:[NSURL URLWithString:usingThisURL] encoding:NSUTF8StringEncoding error:nil] dataUsingEncoding:NSUTF8StringEncoding];

NSLog(@"jsonData: [%@]",jsonData);

NSDictionary *results = jsonData ? [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers|NSJSONReadingMutableLeaves error:&error] : nil;
NSLog(@"json NSDictionary results: [%@]", results);
if (error) NSLog(@"[%@ %@] JSON error: %@", NSStringFromClass([self class]), NSStringFromSelector(_cmd), error.localizedDescription);
NSLog(@"[%@ %@] received %@", NSStringFromClass([self class]), NSStringFromSelector(_cmd), results);
return results;
 }

当我使用终端和“curl -v”命令将其拉下来时，该数据的数据看起来正确解析：

 {"Search":{"Athlete":
 [{"@IDAthlete":"0123456","@FirstName":"John","@LastName":"Doe","@Gender":"M","@IDSchool":"148","@SchoolName":"All American HS","@City":"Union","@State":"ST"},
 {"@IDAthlete":"654321`","@FirstName":"Jane","@LastName":"Doe","@Gender":"F","@IDSchool":"18266","@SchoolName":"Any Ol HS","@City":"Union","@State":"ST"},]}}

未解析的数据如下所示：

 {"ROOT":{"@xmlns:sql":"urn:schemas-microsoft-com:xml-sql"/* School Info */,"row":
 {"@SelectedAthlete":"235434"},"HasTrack":{"@AthleteID":"235434"},"Athlete":
 {"@IDAthlete":"235434","@SchoolID":"148","@FirstName":"Jane","@LastName":"Doe","@Gender":"F",
 "SchType":[{"@SortID":"1","@SchoolType":"High School","@DispSchoolTypeAbbrev":"HS","School":
 {"@IDSchool":"148","@RegionID":"1","@SchoolName":"All American","SchoolDivision":[{"@DivisionID":"21036","Season":{"@IDSeason":"2012","@Display":"2012","Grade":
 {"@SingularGradeDesc":"11th Grade","@IDGrade":"11","Distance":[{"@Distance":"2600.00","@Units":"Meters","Result": ...

我唯一可以想到的是，JSON对以xmlns：sql开头的描述感到窒息，或者这表明我有一个XML文件而不是JSON格式。（我之前用XML解析过这些数据。）

我可以简单地操作数据，还是需要修改生成API？

感谢您的帮助！

Answer 1

您的第二个JSON在与/* School Info */键关联的值之后有一个字符串"@xmlns:sql"。我不知道它是如何进入那里的（在JSON中间有一个C风格的评论是没有意义的），但如果你把它拿出来，你应该是好的。

如果您使用http://jsonlint.com之类的工具，则有助于识别这些问题。

XCODE中的JSON解析不一致（Cocoa error 3840）

1 个答案: