将JSON文件解析为POST请求目标C

Question

我将JSON文件解析为字典，并且在下一步中我想构建针对couchDB的发布请求。

解析工作正常，但如果我发布我得到一个错误。我认为它与我的转义字符串中的转义序列有关。

Here's代码：

NSString *filePath = [[NSBundle mainBundle] pathForResource:@"data" ofType:@"json"]; 

NSString *fileContent = [[NSString alloc] initWithContentsOfFile:filePath]; 

SBJsonParser *parser = [[SBJsonParser alloc] init]; 

NSDictionary *data = (NSDictionary *) [parser objectWithString:fileContent error:nil]; 



// getting the data from file 
NSString *_id = (NSString *) [data objectForKey:@"_id"]; 
NSString *rev_ = self.rev; 
NSString *_herausgeber = (NSString *) [data objectForKey:@"Herausgeber"]; 
NSString *_nummer = (NSString *) [data objectForKey:@"Nummer"]; 
NSNumber *_deckung = [data objectForKey:@"Deckung"]; 
NSString *_waerhung = (NSString *) [data valueForKey:@"Waehrung"]; 

NSDictionary *_inhaber = (NSDictionary *) [data objectForKey:@"Inhaber"]; 
NSString *_name = (NSString *) [_inhaber objectForKey:@"Name"]; 
NSString *_vorname = (NSString *) [_inhaber objectForKey:@"Vorname"]; 
NSNumber *_maennlich = (NSNumber *) [_inhaber objectForKey:@"maennlich"]; 

NSArray *_hobbys = (NSArray *) [_inhaber objectForKey:@"Hobbys"]; 
    NSString *_hobby0 = [_hobbys objectAtIndex:0]; 
    NSString *_hobby1 = [_hobbys objectAtIndex:1]; 
    NSString *_hobby2 = [_hobbys objectAtIndex:2]; 
NSNumber *_alter = (NSNumber *) [_inhaber objectForKey:@"Alter"]; 

NSArray * _kinder = (NSArray *) [_inhaber objectForKey:@"Kinder"]; 
    NSString *_kind0 = [_kinder objectAtIndex:0]; 
    NSString *_kind1 = [_kinder objectAtIndex:1]; 
    NSString *_kind2 = [_kinder objectAtIndex:2]; 
NSString *_partner = (NSString *) [_inhaber objectForKey:@"Partner"]; 

    [parser release]; 

//post string: 

NSString *post = [NSString stringWithFormat:@"{\"_id\":\"%@\",\"_rev\":\"%@\",\"Herausgeber\":\"%@\",\"Nummer\":\"%@\",\"Deckung\":%@,\"Waehrung\":\"%@\",\"Inhaber\":{\"Name\":\"%@\",\"Vorname\":\"%@\",\"maennlich\":%@,\"Hobbys\":[\"%@\",\"%@\",\"%@\"],\"Alter\":%@,\"Kinder\":[\"%@\",\"%@\",\"%@\"],\"Partner\":%@}}",_id,rev_,_herausgeber,_nummer,_deckung,_waerhung,_name,_vorname,_maennlich,_hobby0,_hobby1,_hobby2,_alter,_kind0,_kind1,_kind2,_partner]; 


//post header: 

NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES]; 
NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; 

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; 
[request setURL:[NSURL URLWithString:cdbURL]]; 
[request setHTTPMethod:@"PUT"]; 
[request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
[request setValue:@"application/json" forHTTPHeaderField:@"Content-Type"]; 
[request setHTTPBody:postData]; 

的错误，我得到：

回复：{ “错误”： “BAD_REQUEST”， “原因”：“无效的UTF-8 JSON： < < \“{\\ __ id \\”：\\“161eba7093799b610502bdfba5004281 \\”，\\“_ rev \\”：\\“199-bb065cbd0a365b188fc492cc22453d74 \\”，\\“Herausgeber \\”：\\ “SAP \\”，\\ “Nummer \\”：\\ “1234-5678-9012-3456 \\”，\\ “Deckung \\”：2000000，以\\ “Waehrung \\”：\\“法郎\\ “\\ ”INHABER \\“：{\\ ”名称\\“：\\ ”Mustermann \\“，\\ ”Vorname \\“：\\ ”最大\\“，\\” maennlich \ \“：1 ，\\ “Hobbys \\”：[\\ “Reiten \\”，\\ “Golfen \\”，\\ “Lesen \\”]，\\ “ALTER \\”：42，\\“金德\ \“：\\”Max \\“，\\”Moritz \\“，\\”Lisa \\“]，\\”Partner \\“：}} \”>>“}

我该如何解决这个问题？

Answer 1

个人而言，我会避免自己构建JSON后置字符串，而是使用SBJson的[NSObject JSONRepresentation]函数。

然后你可以填充一个NSDictionary并让API为你构建JSON。

NSString *_id = @"161"; 
NSString *_rev = @"199"; 
NSString *_herausgeber = @"SAP"; 

NSMutableDictionary *toPost = [NSMutableDictionary dictionary]; 
[toPost setObject:_id forKey:@"_id"]; 
[toPost setObject:_rev forKey:@"_rev"]; 
[toPost setObject:_herausgeber forKey:@"Herausgeber"]; 

NSLog(@"JSON: %@", [toPost JSONRepresentation]); 

给出：

JSON: {"_id":"161","_rev":"199","Herausgeber":"SAP"}