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在我的iPhone應用程序,我想給我的數據在JSON format.I在儲存了所有的數據在dictionary.How改變JSON格式的詞典數據,然後用它發送到服務post方法(我只需要發送到服務器)。如何發佈JSON數據到服務器
在我的iPhone應用程序,我想給我的數據在JSON format.I在儲存了所有的數據在dictionary.How改變JSON格式的詞典數據,然後用它發送到服務post方法(我只需要發送到服務器)。如何發佈JSON數據到服務器
如果您使用SBJSON然後用下面的代碼,你可以創建的NSDictionary JSON字符串。
SBJsonWriter *jsonWriter = [SBJsonWriter new];
NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithObjects:values forKeys:keys];
NSString *jsonString = [jsonWriter stringWithObject:dict];
嘗試
NSMutableDictionary *Dict=[[NSMutableDictionary alloc] initWithObjectsAndKeys:str,@"str",str1,@"str1",Idstr,@"Idstr",nil];
NSError *error=nil;
NSData *Data=[NSJSONSerialization dataWithJSONObject:Dict options:NSJSONWritingPrettyPrinted error:&error];
NSMutableString *JsonString = [[NSMutableString alloc] initWithData:Data encoding:NSUTF8StringEncoding];
NSMutableString *[email protected]"url"
NSURL *url=[NSURL URLWithString:urlstr];
NSMutableURLRequest *urlrequest=[NSMutableURLRequest requestWithURL:url];
NSString *urlbody=[NSString stringWithFormat:@"inputParam=%@",JsonString];
[urlrequest setHTTPBody:[Alerturlbody dataUsingEncoding:NSUTF8StringEncoding]];
[urlrequest setHTTPMethod:@"POST"];
[urlrequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Accept"];
[urlrequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[urlrequest setValue:[NSString stringWithFormat:@"%d", [urlbody length]] forHTTPHeaderField:@"Content-Length"];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:urlrequest queue:queue completionHandler:^(NSURLResponse *response, NSData *Resdata, NSError *error)
{
NSError* error;
NSDictionary *jsondict = [NSJSONSerialization
JSONObjectWithData:Resdata //1
options:kNilOptions
error:&error];
//NSLog(@"jsondict:%@",jsondict);
}
else if ([Resdata length] == 0 && error == nil)
{
NSLog(@"Nothing was downloaded.");
else if (error != nil)
{
NSLog(@"Error happened = %@", error);
}
}];
您是否在項目中導入了JSON類文件? – NiravPatel
我試過這段代碼:-NSDictionary * jsonDict = [NSDictionary dictionaryWithObject:AnswerData forKey:@「question」]; 的NSData * jsonData = [NSJSONSerialization dataWithJSONObject:AnswerData選項:NSJSONWritingPrettyPrinted錯誤:錯誤];但在不defined.such錯誤「錯誤」我是gettig .. – user3247436
如果您正在使用JSON類文件,那麼這將是很容易轉換你的字典轉換成JSON。 – NiravPatel