ios - 从 xcode 获取 json

Question

我正在从 xcode 4 调用用 .net 编写的 Web 服务。输出是一个 json 字符串。当使用静态 IP 地址使用 url 进行调用时，它会给出错误。HTTP 错误 404.0 - 未找到。但在调用相同的 url 时有效在 localhost 中，代码如下

- (void)viewDidLoad
{    
    [super viewDidLoad]; 
    NSURL *url=[NSURLURLWithString:@"http:// static ip address where serviceis located(169.254.216.8)/restGroceryService/WebService/insertList?prods=apples,bananas,milk"];
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    NSData *data = [NSData dataWithContentsOfURL:url];
    NSString *pageSource = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    NSLog(@"page source%@",pageSource);
    NSDictionary* json = [NSJSONSerialization JSONObjectWithData:data  options:kNilOptions error:nil];
    NSArray *array = [json objectForKey:@"result"]; 
    NSDictionary *store = [array objectAtIndex:0];
    NSNumber *storeId = [store objectForKey:@"storeId"];
    NSNumber *total = [store objectForKey:@"TOTAL"];
    self.priceTextField.text =[total stringValue];
    NSString *storeName = [store objectForKey:@"storeName"];
    self.storNameTextField.text = storeName;
} 

Answer 1

ithink the error was here try now:


NSURL *url=[NSURL URLWithString:@"your address"];/<------ here was the error
    NSURLRequest *request = [NSURLRequest requestWithURL:url];
    NSData *data = [NSData dataWithContentsOfURL:url];
    NSString *pageSource = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
    NSLog(@"page source%@",pageSource);
    NSDictionary* json = [NSJSONSerialization JSONObjectWithData:data  options:kNilOptions error:nil];
    NSArray *array = [json objectForKey:@"result"];
    NSDictionary *store = [array objectAtIndex:0];
    NSNumber *storeId = [store objectForKey:@"storeId"];
    NSNumber *total = [store objectForKey:@"TOTAL"];
    self.priceTextField.text =[total stringValue];
    NSString *storeName = [store objectForKey:@"storeName"];
    self.storNameTextField.text = storeName;