2012-07-10 108 views
0

我有以下细节,用于从服务器获取数据。 methodIdentifier和Web服务名称的用法是什么?JSON解析,如何获得来自服务器的响应

{"zip":"12345","methodIdentifier":"s_dealer"} 

url:- http://xxxxxxxxxxxxxxx.com/api.php 
method: post 
web service name: s_dealer 

response : {"success":"0","dealer":[info...]} 

我不知道如何发送邮编号码 “12345”的URL。请指导我正确的方向。我使用以下。

-(void)IconClicked:(NSString *)zipNumber 
{ 


NSString *post = [NSString stringWithFormat:@"&zipNumber=%@",zipNumber]; 



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

NSString *postLength = [NSString stringWithFormat:@"%d",[postData length]]; 

NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease]; 

[request setURL:[NSURL URLWithString:[NSString stringWithFormat:@"http://xxxxxxxxxxxxxxxxxxx.com/api.php"]]]; 

[request setHTTPMethod:@"POST"]; 

[request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 

[request setHTTPBody:postData]; 

NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self]; 

if(conn) 
{ 
    NSLog(@"Connection Successful"); 
} 
else 
{ 
    NSLog(@"Connection could not be made"); 
} 

    receivedData = [[NSMutableData alloc]init]; 


} 

当我打印在控制台响应:不知道更多有关API \

回答

0

“的字符串\意外结束”,我不能肯定你的需求,但似乎服务器期待包含JSON的请求。您目前正在为请求创建主体的方式是使用标准的POST变量。

您是否尝试过改变:

NSString *post = [NSString stringWithFormat:@"&zipNumber=%@",zipNumber]; 

到:

NSString *post = [NSString stringWithFormat:@"{\"zip\":\"%@\",\"methodIdentifier\":\"s_dealer\"}",zipNumber]; 

关于你提到的其他问题,我猜有这种API的一个单一的URL。服务器使用methodidentifier来确定要运行的服务器方法。

0

你得到这个错误是因为你没有得到一个json作为响应,但是来自Apache(或其他)的错误,具有不同的结构,并且json无法解析它。尝试我的方法来启动连接,以获得成功。

声明NSURLConnection属性并将其合成。现在:

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

    NSString *toServer = [NSString stringWithString:@"your server with the last slash character"]; 

    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@api.php?", toServer]]; 
    NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO]; 
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; 
    NSMutableURLRequest *urlRequest = [[[NSMutableURLRequest alloc] init] autorelease]; 
    [urlRequest setURL:url]; 
    [urlRequest setHTTPMethod:@"POST"]; 
    [urlRequest setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
    [urlRequest setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; 
    [urlRequest setValue:@"utf-8" forHTTPHeaderField:@"charset"]; 
    [urlRequest setHTTPBody:postData]; 
    [urlRequest setTimeoutInterval:30]; 

    NSURLConnection *tmpConn = [[[NSURLConnection alloc] initWithRequest:urlRequest delegate:self] autorelease]; 

    self.yourConnectionProperty = tmpConn; 

现在您在连接代理中使用self.yourConnectionProperty。干杯!