获得徐家汇的天气预报

代码：

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    [self getWeatherInfo];

}
//获得徐家汇的天气预报
-(void)getWeatherInfo{

    NSError *error;

    NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://m.weather.com.cn/data/101021200.html" ]];//代码为徐家汇

    NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];

    NSDictionary *weatherDic = [NSJSONSerialization JSONObjectWithData:response  options:NSJSONReadingMutableLeaves error:&error];

    NSDictionary *weatherInfo = [weatherDic objectForKey:@"weatherinfo"];

    NSLog(@"天气%@",[NSString stringWithFormat:@"\n%@\n%@\n%@\n%@\n%@\n ", [weatherInfo objectForKey:@"city"],[weatherInfo objectForKey:@"date_y"],[weatherInfo objectForKey:@"week"], [weatherInfo objectForKey:@"weather1"], [weatherInfo objectForKey:@"temp1"]]);

    /*
     天气
     徐家汇
     2014年3月4日
     星期二
     小雨转多云
     11℃~6℃
     */

}

输出：

2015-03-11 16:02:06.686 徐家汇天气预报[5526:214455] 天气

徐家汇

2014年3月4日

星期二

小雨转多云

11℃~6℃