將Pickerview數據發送到URL

Question

從Picker視圖中選擇數據時，我得到了我的項目ID：12。現在我的問題是我想將這12（項目ID）發送到NSURL，以便在更改項目時分別加載我的任務。這裏是我下面的代碼：

viewDidLoad中：

NSString *nsTaskurllocal = @"http://xxxx/xxx/"; 
    NSString *projectsLabel = [self.lblProjects text]; 
    NSString *aString = [nsTaskurllocal stringByAppendingString:projectsLabel]; 
    NSLog(@"aString : %@", aString); 
    NSString *temp = [aString stringByAppendingString:@"/"]; 

    int usrid = 313; 
    NSString *usridstring = [NSString stringWithFormat:@"%d", usrid]; 
    NSString *finalurl = [usridstring stringByAppendingString:temp]; 
    NSURL *nstaskurl = [NSURL URLWithString:finalurl]; 
    NSLog(@"nstaskurl : %@", nstaskurl); 

    NSData *nstaskpostData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 

    NSString *nstaskpostLength = [NSString stringWithFormat:@"%lu", (unsigned long)[nstaskpostData length]]; 
    NSMutableURLRequest *nstaskrequest = [[NSMutableURLRequest alloc] init]; 
    [request setURL:nstaskurl]; 
    [request setHTTPMethod:@"POST"]; 
    [request setValue:nstaskpostLength forHTTPHeaderField:@"Content-Length"]; 
    [request setValue:@"application/projectpicker" forHTTPHeaderField:@"Accept"]; 
    [request setValue:@"application/jsonArray" forHTTPHeaderField:@"Content-Type"]; 
    [request setHTTPBody:nstaskpostData]; 


    NSError *nstaskerror = [[NSError alloc] init]; 
    NSHTTPURLResponse *nstaskresponse = nil; 
    NSData *nstaskurlData=[NSURLConnection sendSynchronousRequest:nstaskrequest returningResponse:&nstaskresponse error:&nstaskerror]; 
    NSURLRequest *nstaskurlRequest = [NSURLRequest requestWithURL:nstaskurl 
               cachePolicy:NSURLRequestReturnCacheDataElseLoad 
              timeoutInterval:30]; 


    // Make synchronous request 
    nstaskurlData = [NSURLConnection sendSynchronousRequest:nstaskurlRequest 
            returningResponse:&nstaskresponse 
               error:&nstaskerror]; 
    if ([nstaskresponse statusCode] >= 200 && [nstaskresponse statusCode] < 300) 
    { 
     NSString *nstaskresponseData = [NSJSONSerialization JSONObjectWithData:nstaskurlData 
                   options:NSJSONReadingAllowFragments error:&nstaskerror]; 

     NSArray *nstaskentries = [NSJSONSerialization JSONObjectWithData:[nstaskresponseData dataUsingEncoding:NSUTF8StringEncoding] 
                  options:0 error:&nstaskerror]; 
     if(!nstaskentries) 
     { 
      NSLog(@"Error : %@", nstaskerror); 
     } 
     else{ 

      for (NSDictionary *nstaskentry in nstaskentries) { 
       taskID = [nstaskentries valueForKey:@"ID_TASK"]; 
       taskNames = [nstaskentries valueForKey:@"TASk_NAME"]; 

       //NSLog(@"Error : %@", taskNames); //log to see the result in console // by Kiran 
      } 

      _projectpicker.delegate = self; 
      _projectpicker.dataSource = self; 
     } 

    }  else { 

    } 

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component 
{ 

    NSNumber *myProjectArrayString = [projID objectAtIndex:row]; 
    //NSNumber *myTaskArrayString = [taskID objectAtIndex:row]; 
    //NSLog(@"%@",myArrayString); 
    //NSLog(@"%@",myTaskArrayString); 
    lblProjects.text = [NSString stringWithFormat:@"%@",myProjectArrayString]; 
    //lblProjects.hidden = YES; 
    lblTasks.text = [taskNames objectAtIndex:[pickerView selectedRowInComponent:1]]; 
    //lblTasks.text = [NSString stringWithFormat:@"%@", myTaskArrayString]; 
    lblSubTasks.text = [subtaskNames objectAtIndex:[pickerView selectedRowInComponent:2]]; 
} 

lblProjects.text有項目編號：12，所以我需要這個12傳遞給我的ASTRING，這樣我可以追加和它傳遞給NSURL Thnaks

Answer 1

嘗試除以組件分割字符串，等等[splitArray lastObject]是你的 「12」

NSString *nsTaskurllocal = @"http://xxxx/xxx/"; 
NSString *projectsLabel = @"Project ID :12"; 
NSArray *splitArray = [projectsLabel componentsSeparatedByString:@":"]; 
NSString *aString = [NSString stringWithFormat:@"%@%@", nsTaskurllocal, [splitArray lastObject]]; 

ASTRING應該是現在。

Answer 2

試試這個，我希望這會有所幫助，如果你得到任何問題讓我知道

-(void)postMethod 
{ 
NSString *urlString = [NSString stringWithFormat:@"http:******"]; 
NSString *userIDString=@"131"; 
NSString *productIDString=@"12"; 
NSString * productIdString =[NSString stringWithFormat:@"%@/%@",userIDString,productIDString]; 
NSData* postData= [productIdString dataUsingEncoding:NSUTF8StringEncoding]; 
NSString *decode = [[NSString alloc] initWithData:postData encoding:NSUTF8StringEncoding]; 
NSLog(@"%@",decode); 
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; 
[request setURL:[NSURL URLWithString:urlString]]; 
[request setHTTPMethod:@"POST"]; 
NSString *boundary = @"---------------------------14737809831466499882746641449"; 
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary]; 
[request addValue:contentType forHTTPHeaderField: @"Content-Type"]; 
NSMutableData *body = [NSMutableData data]; 
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[[NSString stringWithString:string] dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; 
[body appendData:[NSData dataWithData:postData]]; 
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]]; 
[request setHTTPBody:body]; 

NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil]; 
NSString*s11= [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; 
}