北京天气查询API(北京天气查询2345)

网友投稿 767 2022-11-04


北京天气查询API(北京天气查询2345)

本文目录一览:

如何使用中国气象局API开发天气APP

前期的准备工作:

一、申请API(拿好appid和private_key)

二、解读《SmartWeatherAPILite WebAPI版接口使用说明书》

三、准备好areaid、type、date、appid、urlencode($key)(注意,这里经加密的key是需要encodeurl之后的才能成为接口链接的一部分)

好了下面的编码开始:

1、从附件中的areaid_list中找到你想要的地方的areaid,并且选择要查询天气的类型

NSString *areaid = @"101010100";

NSString *type =

@"index_f";

/**

* 官方文档更新的数据类型号

* 指数:index_f(基础接口);index_v(常规接口)

3天预报:forecast_f(基础接口);forecast_v(常规接口)

*

*/

2、获得当前天气date

NSDate

*_date = [NSDate date];

NSDateFormatter *dateFormatter =

[[NSDateFormatter alloc] init];

[dateFormatter

setDateFormat:@"yyyyMMddHHmmss"];//注意日期的格式

NSString *date =

[[dateFormatter stringFromDate:_date]

substringToIndex:12];//用到的精确到分,24小时制60分钟制

3、申请的appid,和private_key

NSString *appid =

@"15ds45s13a465s";//这里是楼主随便输入的,瞎编的

NSString *private_key =

@"46s4ds_SmartWeatherAPI_45s44d6";//也是瞎编的

4、算出经过urlencode后的key,这步比较重要,步骤也多,请耐心看完。

在原来的的基础上是在PHP的环境中算出的,代码如下,可在“

”下进行算法的检验

echo

urlencode(base64_encode(hash_hmac('sha1', " ;type=index_fdate=201409041509appid=15ds45s13a465s",

"46s4ds_SmartWeatherAPI_45s44d6",

TRUE)));

首先定义得到public_key和API的方法,还有就是对key进行encodeurl操作的方法

注意,这里的方法都是被我定义在getTime的类里面,后面是在main中实例化出来的

//获得publicky

- (NSString*)

getPublicKey:(NSString*)areaid :(NSString*)type :(NSString*)date

:(NSString*)appid {

NSString *Key = [[NSString alloc]

initWithFormat:@";type=%@date=%@appid=%@",

areaid, type, [date substringToIndex:12], appid];

return

Key;

}

//获得完整的API

- (NSString*) getAPI:(NSString*)areaid

:(NSString*)type :(NSString*)date :(NSString*)appid :(NSString*)key

{

NSString *API = [[NSString alloc]

initWithFormat:@";type=%@date=%@appid=%@key=%@",

areaid, type, [date substringToIndex:12], [appid substringToIndex:6],

key];

//-------------这里需要主要的是只需要appid的前6位!!!

return

API;

}

//将获得的key进性urlencode操作

- (NSString

*)stringByEncodingURLFormat:(NSString*)_key{

NSString *encodedString

= (__bridge NSString

*)CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,(CFStringRef)_key,

nil, (CFStringRef) @"!$'()*+,-./:;=?@_~%#[]",

kCFStringEncodingUTF8);

//由于ARC的存在,这里的转换需要添加__bridge,原因我不明。求大神讲解

return

encodedString;

}

重点来了,在oc下的算法如下,记得把附件的Base64.h

加进来并引用到工程里面

//对publickey和privatekey进行加密

- (NSString *)

hmacSha1:(NSString*)public_key :(NSString*)private_key{

NSData*

secretData = [private_key

dataUsingEncoding:NSUTF8StringEncoding];

NSData* stringData = [public_key

dataUsingEncoding:NSUTF8StringEncoding];

const void* keyBytes =

[secretData bytes];

const void* dataBytes = [stringData

bytes];

///#define CC_SHA1_DIGEST_LENGTH 20 /* digest

length in bytes */

void* outs =

malloc(CC_SHA1_DIGEST_LENGTH);

CCHmac(kCCHmacAlgSHA1, keyBytes,

[secretData length], dataBytes, [stringData length], outs);

//

Soluion 1

NSData* signatureData = [NSData dataWithBytesNoCopy:outs

length:CC_SHA1_DIGEST_LENGTH freeWhenDone:YES];

return

[signatureData

base64EncodedString];

}

这里只是初步算出来的key,还未encodeurl,链接不能被浏览器识别,所以现在经过算法得到的_key还有一步操作才能的到真正的key。

NSString *_key = [getTime hmacSha1:[getTime

getPublicKey:areaid :type :date :appid] :private_key];

NSString *key =

[getTime

stringByEncodingURLFormat:_key];

最后一步了吧!拼接API

NSString *weatherAPI = [getTime getAPI:areaid :type :date

:appid

:key];

//OK,我们的API就可以用啦。

最后,通过API返回的值是JSON文件,通过解析,就能得到我们想要的数据了,下面拿一个开发的接口举例

NSDictionary *weatherDic = [getTime

getWeatherDic:@""];

// weatherDic字典中存放的数据也是字典型,从它里面通过键值取值

NSDictionary

*weatherInfo = [weatherDic

objectForKey:@"weatherinfo"];

NSLog(@"今天是 %@ %@ %@ 的天气状况是:%@ %@ -

%@",[newDateOne substringWithRange:NSMakeRange(0, 4)],[newDateOne

substringWithRange:NSMakeRange(4, 2)] ,[newDateOne

substringWithRange:NSMakeRange(6, 2)],[weatherInfo

objectForKey:@"weather"],[weatherInfo objectForKey:@"temp1"],[weatherInfo

objectForKey:@"temp2"]);

输出:2014-09-04 23:40:23.243

WeatherAPP[5688:201108] 今天是 2014-09-04 的天气状况是:晴 17℃ - 30℃

weatherInfo字典里面的内容是---{"weatherinfo":{"city":"北京","cityid":"101010100","temp1":"17℃","temp2":"30℃","weather":"晴","img1":"n0.gif","img2":"d0.gif","ptime":"18:00"}}

国内有哪些城市较完整可以免费使用的天气 API 接口

因微信公共号提供城市天气预报服务,发现网山天气预报接口和环境数据接口方面资料比较乱,而且有不少内容已经失效,下面内容由过程日志整理形成,希望可用得上。

一 天气预报

国内的天气预报数据,主要是国家气象局和国外两个来源(指数据来源)。

国外方面主要是雅虎(XML格式,谷歌已经停掉了自家的天气API);

国内数据由国家气象局提供(JSON格式)。

在知乎看到过一篇专业人士评论,雅虎可以提供全球范围的且非常精细的天气数据(小时级更新),但主要是通过计算机自动生成。而国家气象局则是各地经验丰富的专家人士结合计算机综合分析得出,在准确性上更胜一筹。我就这样信了!

国家气象局接口资源及用法

气象局的天气预报主页:移动版普通版 ,仔细挖掘这两个地址可以发现很多好东西哦。

特点:接口多,来自weather.com.cn和mobile.weather.com.cn都有,次数不限制,服务稳定,功能全面,优先推荐。

1. 实时天气接口

有多个接口,好像差别不大:

实时天气1:

实时天气2:

实时天气3(带时间戳):

2. 一周天气预报接口

7天预报数据 URL:

该接口来源气象局移动版网站,目测数据最为精确,详细接口格式如下:

{"c":{"c1":"101010100","c2":"beijing","c3":"北京","c4":"beijing","c5":"北京","c6":"beijing","c7":"北京","c8":"china","c9":"中国","c10":"1","c11":"010","c12":"100000","c13":"116.391","c14":"39.904","c15":"33","c16":"AZ9010","c17":"+8"},

"f":{"f1":

[

{"fa":"01","fb":"03","fc":"10","fd":"5","fe":"0","ff":"0","fg":"0","fh":"0","fi":"06:21|17:40"},

{"fa":"07","fb":"07","fc":"19","fd":"12","fe":"0","ff":"0","fg":"0","fh":"0","fi":"06:22|17:38"},

{"fa":"02","fb":"00","fc":"15","fd":"5","fe":"8","ff":"8","fg":"3","fh":"1","fi":"06:23|17:37"},

{"fa":"00","fb":"00","fc":"16","fd":"4","fe":"0","ff":"0","fg":"0","fh":"0","fi":"06:24|17:35"},

{"fa":"00","fb":"00","fc":"18","fd":"7","fe":"0","ff":"0","fg":"0","fh":"0","fi":"06:25|17:34"},

{"fa":"00","fb":"01","fc":"18","fd":"8","fe":"0","ff":"0","fg":"0","fh":"0","fi":"06:26|17:32"},

{"fa":"01","fb":"01","fc":"16","fd":"6","fe":"0","ff":"0","fg":"0","fh":"0","fi":"06:27|17:31"}],

"f0":"201310121100"}}

详细接口分析如下:

//格式说明

var format={fa:图片1,fb:图片2,fc:温度1,fd:温度2,fe:风向1,ff:风向2,fg:风力1,fh:风力2,fi:日出日落};

//定义天气类型

var weatherArr={"00":"晴","01":"多云","02":"阴","03":"阵雨","04":"雷阵雨","05":"雷阵雨伴有冰雹","06":"雨夹雪","07":"小雨","08":"中雨","09":"大雨","10":"暴雨","11":"大暴雨","12":"特大暴雨","13":"阵雪","14":"小雪","15":"中雪","16":"大雪","17":"暴雪","18":"雾","19":"冻雨","20":"沙尘暴","21":"小到中雨","22":"中到大雨","23":"大到暴雨","24":"暴雨到大暴雨","25":"大暴雨到特大暴雨","26":"小到中雪","27":"中到大雪","28":"大到暴雪","29":"浮尘","30":"扬沙","31":"强沙尘暴","53":"霾","99":""};

//定义风向数组

var fxArr={"0":"无持续风向","1":"东北风","2":"东风","3":"东南风","4":"南风","5":"西南风","6":"西风","7":"西北风","8":"北风","9":"旋转风"};

//定义风力数组

var flArr={"0":"微风","1":"3-4级","2":"4-5级","3":"5-6级","4":"6-7级","5":"7-8级","6":"8-9级","7":"9-10级","8":"10-11级","9":"11-12级"};

6天预报数据 URL:

该接口来源网络,应该是一个流传比较久的接口,大发现准确性和稳定性可能不稳定。接口分析如下:

{"weatherinfo":{

#基本信息

"city":"北京","city_en":"beijing","date_y":"2013年9月24日","date":"","week":"星期二","fchh":"11","cityid":"101010100",

#6天温度范围

"temp1":"22℃~11℃","temp2":"25℃~11℃","temp3":"26℃~13℃","temp4":"25℃~15℃","temp5":"25℃~16℃","temp6":"24℃~16℃",

#6天温度范围(华氏)

"tempF1":"71.6℉~51.8℉","tempF2":"77℉~51.8℉","tempF3":"78.8℉~55.4℉","tempF4":"77℉~59℉","tempF5":"77℉~60.8℉","tempF6":"75.2℉~60.8℉",

#6天天气

"weather1":"多云转晴","weather2":"晴","weather3":"晴","weather4":"晴转多云","weather5":"阴转阵雨","weather6":"多云",

#6天天气图示(每天2张)

"img1":"1","img2":"0","img3":"0","img4":"99","img5":"0","img6":"99","img7":"0","img8":"1","img9":"2","img10":"3","img11":"1","img12":"99",

"img_single":"1",

#6天天气图示文字(每天2)

"img_title1":"多","img_title2":"晴","img_title3":"晴","img_title4":"晴","img_title5":"晴","img_title6":"晴","img_title7":"晴","img_title8":"多云","img_title9":"阴","img_title10":"阵雨","img_title11":"多云","img_title12":"多云",

"img_title_single":"多云",

#6天风

"wind1":"北风3-4级转微风","wind2":"微风","wind3":"微风","wind4":"微风","wind5":"微风","wind6":"微风",

"fx1":"北风","fx2":"微风",

#6天风力情况

"fl1":"3-4级转小于3级","fl2":"小于3级","fl3":"小于3级","fl4":"小于3级","fl5":"小于3级","fl6":"小于3级",

#24小时内

"index":"较冷","index_d":"建议着大衣、呢外套加毛衣、卫衣等服装。体弱者宜着厚外套、厚毛衣。因昼夜温差较大,注意增减衣服。",

#48小时内

"index48":"较舒适","index48_d":"建议着薄外套或牛仔衫裤等服装。年老体弱者宜着夹克衫、薄毛衣等。昼夜温差较大,注意适当增减衣服。",

#紫外 洗车 旅游 舒适指数 晨练 晾晒 过敏

"index_uv":"弱",

"index48_uv":"强",

"index_xc":"适宜",

"index_tr":"适宜",

"index_co":"舒",

"st1":"21","st2":"12","st3":"24","st4":"12","st5":"25","st6":"14", #不明

"index_cl":"较适宜",

"index_ls":"适宜",

"index_ag":"极易发"

}}

如何得到天气情况?在那个接口获取?

据我所知,气象局提供三个天气查询接口,如下:

1、实时天气接口

地址: sk/【城市代码】.html

例如:查询北京实时天气:

结果:

{"weatherinfo":{"city":"北京","cityid":"101010100","temp":"13","WD":"南风","WS":"2","SD":"59%","WSE":"2","time":"10:30","isRadar":"1","Radar":"JC_RADAR_AZ9010_JB"}}

2、今日天气接口

地址:【城市代码】.html

例如:查询北京今日天气:

结果:

{"weatherinfo":{"city":"北京","cityid":"101010100","temp1":"15","temp2":"5℃","weather":"阵雨转阴","img1":"d3.gif","img2":"n2.gif","ptime":"08:00"}}

3、今日及未来天气接口【内容最详细】

地址:【城市代码】.html

例如:查询北京今日及未来天气:

结果:

{"weatherinfo":{"city":"北京","city_en":"beijing","date_y":"2013年10月22日","date":"",

"week":"星期二","fchh":"08","cityid":"101010100","temp1":"15℃~5℃","temp2":"15℃~4℃……

…【省略】"index_tr":"适宜","index_co":"较舒适",

"st1":"11","st2":"1","st3":"13","st4":"5","st5":"14","st6":"4","index_cl":"较不宜",

"index_ls":"不太适宜","index_ag":"不易发"}}

参考:

如何使用百度天气预报API接口

百度API Key申请地址:

创建应用 如图: 

提交后得到API Key 如图:

接口实例:?location=南昌output=jsonak=你的API Keymcode=你的数字签名SHA1;com.example.administrator.jsontest(包名)

接口参数说明

参数类型

参数名称

是否必须

具体描述

String    location    true    输入城市名或经纬度,城市名如北京或者131,经纬度格式为lng,lat坐标,如:location=116.305145,39.982368;全国值为all,返回省会城市自治区,港澳台天气情况多城市天气预报中间用“|”分隔,如:location=116.305145,39.982368|123.342323,36238945|...  

String    output    false    输出的数据格式,默认为xml格式,当output设置为json时,输出的为json数据格式  

String    coord_type    false    请求参数坐标类型,默认为gcj02经纬度坐标。允许的值为bd09ll、bd09mc、gcj02、wgs84;  

返回的JSON数据

{

   "error":0,

   "status":"success",

   "date":"2016-03-05",

   "results":[

       {

           "currentCity":"北京",

           "pm25":"144",

           "index":[

               {

                   "title":"穿衣",

                   "zs":"较冷",

                   "tipt":"穿衣指数",

                   "des":"建议着厚外套加毛衣等服装。年老体弱者宜着大衣、呢外套加羊毛衫。"},

               {

                   "title":"洗车",

                   "zs":"不宜",

                   "tipt":"洗车指数",

                   "des":"不宜洗车,未来24小时内有扬沙或浮尘,如果在此期间洗车,极易很快蒙上新的灰尘。"},

               {

                   "title":"旅游",

                   "zs":"一般",

                   "tipt":"旅游指数",

                   "des":"风稍大,扬沙或浮尘天气对能见度和空气质量都会有些影响,出行请注意交通安全和采取适当的防尘措施。"},

               {

                   "title":"感冒",

                   "zs":"易发",

                   "tipt":"感冒指数",

                   "des":"昼夜温差大,风力较强,易发生感冒,请注意适当增减衣服,加强自我防护避免感冒。"},

               {

                   "title":"运动",

                   "zs":"较不宜",

                   "tipt":"运动指数",

                   "des":"有扬沙或浮尘,建议适当停止户外运动,选择在室内进行运动,以避免吸入更多沙尘,有损健康。"},

               {

                   "title":"紫外线强度",

                   "zs":"最弱",

                   "tipt":"紫外线强度指数",

                   "des":"属弱紫外线辐射天气,无需特别防护。若长期在户外,建议涂擦SPF在8-12之间的防晒护肤品。"}

          ],

 "weather_data":[

             {

                 "date":"周六 03月05日 (实时:12℃)",              "dayPictureUrl":"",

   "nightPictureUrl":"",

                 "weather":"浮尘转晴",

                 "wind":"北风4-5级",

                 "temperature":"12 ~ -1℃"},

 {

                 "date":"周日",

"dayPictureUrl":"",

"nightPictureUrl":"",

                 "weather":"多云",

                 "wind":"微风",

                 "temperature":"10 ~ -3℃"},

 {

                 "date":"周一",            "dayPictureUrl":"",

"nightPictureUrl":"",

                 "weather":"多云转阴",

                 "wind":"微风",

                 "temperature":"13 ~ 2℃"},

 {

                 "date":"周二",                "dayPictureUrl":"",

"nightPictureUrl":"",

             "weather":"阴转多云",

             "wind":"北风3-4级",

             "temperature":"6 ~ -1℃"}

 ]}]}

3.  我们来写个demo,代码如下:

package com.example.administrator.jsontest;

public class MainActivity extends Activity {

   private Button button;

   private TextView textView;

   private Handler handler = new Handler() {

       @Override

       public void handleMessage(Message msg) {

           switch (msg.what) {

               case 0:

                   String re = (String) msg.obj;

                   textView.setText(re);

                   break;

           }

       }

   };

   @Override

   protected void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_main);

       button = (Button) findViewById(R.id.button);

       textView = (TextView) findViewById(R.id.textView);

       button.setOnClickListener(new View.OnClickListener() {

           @Override

           public void onClick(View v) {

               Log.i("TAG", "点击了Button");

               sendRequestWithHttpClient();

           }

       });

   }

   private void sendRequestWithHttpClient() {

       new Thread(new Runnable() {

           @Override

           public void run() {

               HttpURLConnection connection = null;

               try {

                   URL url = new URL("南昌output=jsonak=8ixCCFzlBB617YX7tONI2P5Bmcode=1C:6B:42:33:E8:A6:DC:A2:11:6E:26:EC:84:BD:42:E3:8E:6B:57:9A;com.example.administrator.jsontest");

                   connection = (HttpURLConnection) url.openConnection();

                   connection.setRequestMethod("GET");

                   connection.setConnectTimeout(5000);

                   connection.setReadTimeout(5000);

                   InputStream in = connection.getInputStream();

                   BufferedReader reader = new BufferedReader(new InputStreamReader(in));

                   StringBuilder response = new StringBuilder();

                   String line;

                   while ((line = reader.readLine()) != null) {

                       response.append(line);

                   }

                   Log.i("TAG", response.toString());                    parseJSONObjectOrJSONArray(response.toString());

               } catch (MalformedURLException e) {

                   e.printStackTrace();

               } catch (IOException e) {

                   e.printStackTrace();

               }

           }

       }).start();

   }

   //解析JSON数据

   private void parseJSONObjectOrJSONArray(String jsonData) {

       try {

           String count = "";

           JSONObject jsonObject = new JSONObject(jsonData);

           JSONArray jsonArray = jsonObject.getJSONArray("results");

           if (jsonArray.length() 0) {

               JSONObject object = jsonArray.getJSONObject(0);

               String city = object.optString("currentCity");

               JSONArray array = object.getJSONArray("weather_data");

               for (int i = 0; i array.length(); i++) {

                   JSONObject jsonObject1 = array.getJSONObject(i);

                   String dateDay = jsonObject1.optString("date");

                   String weather = jsonObject1.optString("weather");

                   String wind = jsonObject1.optString("wind");

                   String temperature = jsonObject1.optString("temperature");

                   count =count +"\n"+ dateDay + " " + weather + " " + wind + " " + temperature;

                   Log.i("AAA",count);

               }

               Message message = new Message();

               message.what = 0;

               message.obj = count;

               handler.sendMessage(message);

           }

       } catch (JSONException e) {

           e.printStackTrace();

       }

   }

}

4. 运行结果如下:

关于北京天气查询API和北京天气查询2345的介绍到此就结束了,不知道你从中找到你需要的信息了吗 ?如果你还想了解更多这方面的信息,记得收藏关注迈希泽CE认证机构。


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