问使用NSJSONSerializer iOS发布http JSON请求

EN

NSArray *keys = [NSArray arrayWithObjects:@"Training_Code", @"Training_Duration",@"Training_Startdate",@"Training_Enddate",@"Trainer_ID",@"Training_Location",@"Comments",@"Keyword",@"NumberofDays", nil];
NSArray *objects = [NSArray arrayWithObjects:@"Training_Code", @"Training_Duration",@"Training_Startdate",@"Training_Enddate",@"Trainer_ID",@"Training_Location",@"Comments",@"Keyword",@"NumberofDays", nil];
NSData *jsonData;
NSString *jsonString;
NSDictionary *jsonDictionary = [NSDictionary dictionaryWithObjects:objects forKeys:keys];

if([NSJSONSerialization isValidJSONObject:jsonDictionary])
{
    jsonData = [NSJSONSerialization dataWithJSONObject:jsonDictionary options:0 error:nil];
    jsonString = [[NSString alloc]initWithData:jsonData encoding:NSUTF8StringEncoding];
}

// Be sure to properly escape your url string.
NSURL *url1 = [NSURL URLWithString:@"http://xx.xx.xx.xxx/DeployiOSCalender/service1.asmx"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url1];
[request setHTTPMethod:@"POST"];
[request setHTTPBody: jsonData];
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];
[request setValue:[NSString stringWithFormat:@"%d", [jsonData length]] forHTTPHeaderField:@"Content-Length"];

NSError *errorReturned = nil;
NSURLResponse *theResponse =[[NSURLResponse alloc]init];
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&theResponse error:&errorReturned];

if (errorReturned) {
    // Handle error.
}
else
{
    NSError *jsonParsingError = nil;
    NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers|NSJSONReadingAllowFragments error:&jsonParsingError];
}

{
d = "[{\"Training_Code\":\"1234      \",\"Training_Duration\":\"2hrs      \",\"Training_Startdate\":\"14/02/2013 15:00:00\",\"Training_Enddate\":\"14/02/2013 17:00:00\",\"Trainer_ID\":1,\"Training_Location\":\"B-Wing Training room-4\",\"Comments\":\"C# training\",\"Keyword\":\"C#1234\",\"NumberofDays\":1},{\"Training_Code\":\"4321      \",\"Training_Duration\":\"16        \",\"Training_Startdate\":\"17/02/2013 10:30:00\",\"Training_Enddate\":\"17/02/2013 17:30:00\",\"Trainer_ID\":2,\"Training_Location\":\"A-Wing Training Room-6\",\"Comments\":\"Objective-C\",\"Keyword\":\"Obj-C4321\",\"NumberofDays\":2}]";
}

[{"Training_Code":"1234      ","Training_Duration":"2hrs      ","Training_Startdate":"14/02/2013 15:00:00","Training_Enddate":"14/02/2013 17:00:00","Trainer_ID":1,"Training_Location":"B-Wing Training room-4","Comments":"C# training","Keyword":"C#1234","NumberofDays":1},{"Training_Code":"4321      ","Training_Duration":"16        ","Training_Startdate":"17/02/2013 10:30:00","Training_Enddate":"17/02/2013 17:30:00","Trainer_ID":2,"Training_Location":"A-Wing Training Room-6","Comments":"Objective-C","Keyword":"Obj-C4321","NumberofDays":2}