Obtain the address of the corresponding location through the IP address

It has always been a dream to use an IP address to obtain the address of the corresponding location. I have worked hard so far, but the effect is not very good. Now I will paste the results of my efforts (some from the network, I hope to inspire some people. If some people have new insights, I hope I will not hesitate to give them some advice:

1. Use the Internet to obtain the IP address of the corresponding location:

Import java. io. inputStream; import java. io. outputStream; import java. io. outputStreamWriter; import java.net. URL; import java.net. URLConnection; import javax. xml. parsers. documentBuilder; import javax. xml. parsers. documentBuilderFactory; import org. w3c. dom. document; import org. w3c. dom. node; import org. w3c. dom. nodeList; public class IpReport {/*** parses the XML returned by the server ** @ return String, and splits */public static String getI P (String ip) {try {DocumentBuilderFactory dbf = DocumentBuilderFactory. newInstance (); dbf. setNamespaceAware (true); DocumentBuilder db = dbf. newDocumentBuilder (); InputStream is = getSoapInputStream (ip); Document doc = db. parse (is); NodeList nodeList = doc. getElementsByTagName ("string"); StringBuffer stringBuffer = new StringBuffer (); for (int count = 0; count <nodeList. getLength (); count ++) {Node n = no DeList. item (count); if (n. getFirstChild (). getNodeValue (). equals ("the query result is blank! ") {StringBuffer = new StringBuffer (" # "); break;} stringBuffer. append (n. getFirstChild (). getNodeValue () + "#"); // System. out. println (":" + n. getFirstChild (). getNodeValue ();} is. close (); return stringBuffer. toString (). split ("#") [1];} catch (Exception e) {e. printStackTrace (); return null ;}/ *** the user sends the SOAP request to the server, and return the input stream returned by the server point. The user enters the city name ** @ return the input stream returned by the server side for the client to read */private static InputStream getSoapInpu TStream (String ip) throws Exception {try {String soap = getSoapRequest (ip); if (soap = null) {return null ;} URL url = new URL ("http://webservice.webxml.com.cn/WebServices/IpAddressSearchWebService.asmx"); URLConnection conn = url. openConnection (); conn. setUseCaches (false); conn. setDoInput (true); conn. setDoOutput (true); conn. setRequestProperty ("Content-Length", Integer. toString (soap. length (); conn. setRe QuestProperty ("Content-Type", "text/xml; charset = UTF-8"); conn. setRequestProperty ("SOAPAction", "http://WebXml.com.cn/getCountryCityByIp"); OutputStream OS = conn. getOutputStream (); OutputStreamWriter osw = new OutputStreamWriter (OS, "UTF-8"); osw. write (soap); osw. flush (); osw. close (); InputStream is = conn. getInputStream (); return is;} catch (Exception e) {e. printStackTrace (); return null ;}/ *** get SOAP request Header, and replace the flag with the user-entered city ** @ return the SOAP request that the customer will send to the server */private static String getSoapRequest (String ip) {StringBuilder sb = new StringBuilder (); sb. append ("<? Xml version = \ "1.0 \" encoding = \ "UTF-8 \"?> "+" <Soap: Envelope xmlns: xsi = \ "external" "+" xmlns: xsd = \ "http://www.w3.org/2001/XMLSchema\" "+" xmlns: soap = \ "http://schemas.xmlsoap.org/soap/envelope/\"> "+" <soap: body> "+" <getCountryCityByIp xmlns = \ "http://WebXml.com.cn/\"> "+" <theIpAddress> "+ ip +" </theIpAddress> "+" </getCountryCityByIp> "+ "</soap: body> </soap: Envelope> "); return sb. toString ();} public static void main (String [] args) throws Exception {System. out. println (getIp ("218.25.139.160"); // output: ADSL System of Dalian Unicom, Liaoning Province. out. println (getIp ("200.151.111.111"); // output result: Sao Paulo System, Brazil. out. println (getIp ("125.13.13.4"); // output result: ATHOME network System in Japan. out. println (getIp ("58.16.209.19"); // output result: System of tenglong Internet cafe in liuzhi Special Zone, liupanshui city, Guizhou Province. out. println (getIp ("22.8.129.60"); // output result: DoD Network Information Center }}

2. Use the qqwry. dat file to obtain the IP address of the corresponding location:

Because the qqwry. dat file provides a lot of code to get the IP address, only the address for downloading the java project is provided here:

【Download Demo project]