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我需要一个建议：我从http://www.worldweatheronline.com/free-weather.aspx下载了一个 JSON 。我有问题解析这个 JSON：

{
   "data":{
      "current_condition":[
         {
            "cloudcover":"0",
            "humidity":"57",
            "observation_time":"07:23 PM",
            "precipMM":"0.0",
            "pressure":"1013",
            "temp_C":"23",
            "temp_F":"73",
            "visibility":"10",
            "weatherCode":"113",
            "weatherDesc":[
               {
                  "value":"Clear"
               }
            ],
            "weatherIconUrl":[
               {
                  "value":"http:\/\/www.worldweatheronline.com\/images\/wsymbols01_png_64\/wsymbol_0008_clear_sky_night.png"
               }
            ],
            "winddir16Point":"W",
            "winddirDegree":"275",
            "windspeedKmph":"0",
            "windspeedMiles":"0"
         }
      ],
      "request":[
         {
            "query":"Roma, Italy",
            "type":"City"
         }
      ],
      "weather":[
         {
            "date":"2013-05-04",
            "precipMM":"0.0",
            "tempMaxC":"26",
            "tempMaxF":"78",
            "tempMinC":"13",
            "tempMinF":"55",
            "weatherCode":"113",
            "weatherDesc":[
               {
                  "value":"Sunny"
               }
            ],
            "weatherIconUrl":[
               {
                  "value":"http:\/\/www.worldweatheronline.com\/images\/wsymbols01_png_64\/wsymbol_0001_sunny.png"
               }
            ],
            "winddir16Point":"WSW",
            "winddirDegree":"251",
            "winddirection":"WSW",
            "windspeedKmph":"9",
            "windspeedMiles":"6"
         }
      ]
   }
}

从这个 JSON 我需要 3 个信息：tempMaxC、tempMinC 和 weatherIconUrl --> 值。直到现在我做了这个方法：

- (void)wheaterDidFinish:(NSDictionary*)object {
    if (object) {
        NSDictionary *obj = [object objectForKey:@"data"];
        NSArray *firstZero = [obj objectForKey:@"weather"];
        NSLog(@"%@ e %d", firstZero, firstZero.count);

    }
}

我怎样才能获得我需要的信息？你能帮助我吗？谢谢

4

1 回答 1

2 
-(void)wheaterDidFinish:(NSDictionary*)object 
{
    NSString *tempMaxC=@"" , tempMinC =@"" , weatherIconUrl =@"";

    if (object) 
    {
         NSDictionary *obj = [object objectForKey:@"data"];

         NSArray *firstZero = [obj objectForKey:@"weather"];

         NSMutableDictionary *weatherDict = [firstZero objectAtIndex:0];

         tempMaxc = [NSString stringWithFormat:@"%@",[weatherDict objectForKey:@"tempMaxC"]];

         tempMinC = [NSString stringWithFormat:@"%@",[weatherDict objectForKey:@"tempMinC"]];

         NSArray *weatherIconArray=[weatherDict objectForKey:@"weatherIconUrl"];

         weatherIconUrl = [NSString stringWithFormat:@"%@",[[weatherIconArray objectAtIndex:0] objectForKey:@"value"]];

    }
}

这将解决您的问题

于 2013-05-04T20:31:18.353 回答