注意:此方法引用淘寶網提供的接口。
import java.io.ByteArrayOutputStream;import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import javax.servlet.http.HttpServletRequest;
import net.sf.json.JSONObject;
/**
* IP工具類
* @author Fanpf
*
*/
public class IpUtil
{
/**
* 獲取ip對應的區域
* 返回結果:中國 華東 南昌市
* 使用淘寶網所提供接口
* @param IP
* @return
*/
public static String GetAddressByIp(String IP){
String resout = "";
try{
String str = getJsonContent("http://ip.taobao.com/service/getIpInfo.php?ip="+IP);
JSONObject obj = JSONObject.fromObject(str);
JSONObject obj2 = (JSONObject) obj.get("data");
Object code = obj.get("code");
if(String.valueOf(code).equals("0")){
resout = obj2.get("country")+" " +obj2.get("area")+" " +obj2.get("city");
}else{
resout = "未知IP";
}
}catch(Exception e){
e.printStackTrace();
resout = "獲取IP地址異常";
}
return resout;
}
public static String getJsonContent(String urlStr)
{
try
{// 獲取HttpURLConnection連接對象
URL url = new URL(urlStr);
HttpURLConnection httpConn = (HttpURLConnection) url
.openConnection();
// 設置連接屬性
httpConn.setConnectTimeout(3000);
httpConn.setDoInput(true);
httpConn.setRequestMethod("GET");
// 獲取相應碼
int respCode = httpConn.getResponseCode();
if (respCode == 200)
{
return ConvertStream2Json(httpConn.getInputStream());
}
}
catch (MalformedURLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
return "";
}
private static String ConvertStream2Json(InputStream inputStream)
{
String jsonStr = "";
// ByteArrayOutputStream相當於內存輸出流
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
// 將輸入流轉移到內存輸出流中
try
{
while ((len = inputStream.read(buffer, 0, buffer.length)) != -1)
{
out.write(buffer, 0, len);
}
// 將內存流轉換爲字符串
jsonStr = new String(out.toByteArray());
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
return jsonStr;
}
public static void main(String[] args) {
System.out.println(GetAddressByIp("218.64.55.225"));
}
}