comment passer la chaîne en tant que paramètre dans la méthode post

Question

Je suis nouveau à i IOS besoin de savoir comment passer NSString comme paramètre dans nsurlconnection méthode POST, je suis passé chaîne, mais il devient vide

viewdidload:

NSString *parseURL =@"http:url"; 
    NSString *encodeurl =[parseURL stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 
    NSURL *url = [NSURL URLWithString:encodeurl]; 
    NSData *data = [NSData dataWithContentsOfURL:url]; 
    if(data){ 
     NSError *error; 
     NSDictionary *json1 = [NSJSONSerialization JSONObjectWithData:data options: kNilOptions error:&error]; 


     arrMsg = [json1 valueForKeyPath:@"Branches.branch_name"]; 

     arrmsg1 =[json1 valueForKeyPath:@"Branches.id"]; 
     NSString *str = [arrmsg1 componentsJoinedByString:@","]; 

     NSLog(@"%@",str); 

     [self sendDataToServer :@"POST"]; 
     } 

méthode de publication: Dans la méthode post-i a passé la chaîne en tant que paramètre

-(void) sendDataToServer : (NSString *) method{ 
    //NSString *str = [arrmsg1 componentsJoinedByString:@","]; 

    NSString *post = [NSString stringWithFormat:@"branch_id=%@",str]; 
    NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 
    NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[post length]]; 

    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:URL]]; 


    [request setHTTPMethod:@"POST"]; 
    [request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
    [request setHTTPBody:postData]; 

    NSURLConnection *theConnection = [NSURLConnection connectionWithRequest:request delegate:self]; 

    if(theConnection){ 
     // indicator.hidden = NO; 
     mutableData = [[NSMutableData alloc]init]; 
    } 
} 

Answer 1

y ous pouvez faire comme

arrMsg = [json1 valueForKeyPath:@"Branches.branch_name"]; 

    arrmsg1 =[json1 valueForKeyPath:@"Branches.id"]; 
    NSString *str = [arrmsg1 componentsJoinedByString:@","]; 

    NSLog(@"%@",str); 
// call the method like 
    [self sendDataToServer :@"POST" params:str]; 

// créer la méthode comme

-(void) sendDataToServer : (NSString *) method params:(NSString *)str{ 


NSString *post = [NSString stringWithFormat:@"branch_id=%@",str]; 

.... continue your work 

}