Get address and city name through latitude and longitude

The specific invocation method is as follows:

The code is as follows

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Jaddrobj = Getjsonaddr (string.valueof (Dlat), String.valueof (Dlong)); if (jaddrobj==null) { Jaddrobj = Sysutil.getjsonaddr (string.valueof (Dlat), String.valueof (Dlong)); } if (jaddrobj!=null) { Jsobj = Jaddrobj.getjsonobject ("Status"); if (jsobj.getstring ("code"). Equals ("200")) { Jplacearr = Jaddrobj.getjsonarray ("Placemark"); Jplaceobj = jplacearr.getjsonobject (0); Address = jplaceobj.getstring ("Address"); grobaldata.myaddress = address;//The current address into a global variable grobaldata.curaddress = address;//The current address into a global variable City = Jplaceobj.getjsonobject ("Addressdetails"). Getjsonobject ("Country") . Getjsonobject ("Administrativearea"). Getjsonobject ("locality") . getString ("Localityname"); } else { Rtvalue = "Error"; } }

/**

* The reverse resolution of the address according to latitude and longitude, sometimes need to try more than a few times

* Note: (Excerpt from: http://code.google.com/intl/zh-CN/apis/maps/faq.html

* Is there a limit on the number of address resolution requests submitted? If you receive more than 2,500 address resolution requests from an IP address within a 24-hour period, or from an IP

* Address resolution request rate is too fast, the Google map API Encoder will begin to respond with 620 status code. If the address resolver is still used too much, from the

The code is as follows

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* Access to the Google maps API address parser by IP addresses may be permanently blocked. * * @param latitude * Latitude * @param Longitude * Longitude * @return Jsonobject * * @author Lvqiyong */ /* Examples are as follows: * { "Name": "29.871398,121.5817", ' Status ': { "Code": 200, "Request": "GeoCode" }, "Placemark": [{ "id": "P1", "Address": "No. No. 360 Zhongxing Road, Jiangdong District, Ningbo, Zhejiang, China: 315040", "Addressdetails": { "Accuracy": 8, "Country": { "Administrativearea": { "Administrativeareaname": "Zhejiang Province", "Locality": { "Dependentlocality": { "Dependentlocalityname": "Jiangdong District", "Thoroughfare": { "Thoroughfarename": "No. No. 360 Zhongxing Road" } }, "Localityname": "Ningbo" } }, "CountryName": "China", "Countrynamecode": "CN" } }, "Extendeddata": { "Latlonbox": { "North": 29.8737610, "South": 29.8710630, "East": 121.5832290, "West": 121.5805310 } }, "Point": { "Coordinates": [121.5818800, 29.8724120, 0] } } ] }*/ public static Jsonobject getjsonaddr (string latitude, string longitude) { It can be http://maps.google.cn/maps/geo?output=csv&key=abcdef&q=%s,%s, but it's an English address. The key can be casually written a key=abc Output=csv, or it can be XML or JSON, the default way is to Output=json String url = string . Format ( "Http://ditu.google.cn/maps/geo?key=abcdef&q=%s,%s", latitude, longitude); HttpGet httpget = new HttpGet (URL); HttpClient client = new Defaulthttpclient (); HttpResponse response; StringBuilder StringBuilder = new StringBuilder (); try { Response = Client.execute (HttpGet); /* httpentity entity = response.getentity (); InputStream stream = Entity.getcontent (); int b; while ((b = stream.read ())!=-1) { Stringbuilder.append ((char) b); }*/ httpentity entity = response.getentity (); BufferedReader br = new BufferedReader (New InputStreamReader (Entity . getcontent ()); String result = Br.readline (); while (result!= null) { Stringbuilder.append (result); result = Br.readline (); } catch (Clientprotocolexception e) { catch (IOException e) { } Jsonobject jsonobject = new Jsonobject (); try { Jsonobject = new Jsonobject (stringbuilder.tostring ()); catch (Jsonexception e) { E.printstacktrace (); } return jsonobject; }