Java联网查询IP地址归属，使用腾讯ip分享计划接口以及淘宝API接口
关于Java联网查询IP地址归属问题，在网上基本找到以下两种解决方案。
第一种是调用“腾讯ip分享计划”提供的接口，代码如下。
public String getAddressByIP()
{
try
{
String strIP = "0.0.0.0";
URL url = new URL( "http://ip.qq.com/cgi-bin/searchip?searchip1=" + strIP);
URLConnection conn = url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "GBK"));
String line = null;
StringBuffer result = new StringBuffer();
while((line = reader.readLine()) != null)
{
result.append(line);
}
reader.close();
strIP = result.substring(result.indexOf( "该IP所在地为：" ));
strIP = strIP.substring(strIP.indexOf( "：") + 1);
String province = strIP.substring(6, strIP.indexOf("省"));
String city = strIP.substring(strIP.indexOf("省") + 1, strIP.indexOf("市"));
... ...
... ...
}
catch( IOException e)
{
return "读取失败";
}
} 但是其放在我的系统中运行出错，在获取StrIp的地方出现异常。很遗憾，没有找到原因。
第二种是调用淘宝API联网查询，代码如下。package getAddressByIp;
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 net.sf.json.JSONObject;
public class GetAddressByIp
{
/**
*
* @param IP
* @return
*/
public static String GetAddressByIp(String IP){
String resout = "";
try{
String str = getJsonContent("http://ip.taobao.com/service/getIpInfo.php?ip="+IP);
System.out.println(str);
JSONObject obj = JSONObject.fromObject(str);
JSONObject obj2 = (JSONObject) obj.get("data");
String code = (String) obj.get("code");
if(code.equals("0")){
resout = obj2.get("country")+"--" +obj2.get("area")+"--" +obj2.get("city")+"--" +obj2.get("isp");
}else{
resout = "IP地址有误";
}
}catch(Exception e){
e.printStackTrace();
resout = "获取IP地址异常："+e.getMessage();
}
return resout;
}
public static String getJsonContent(String urlStr)
{
try
{// 获取HttpURLConnection连接对象
URL url = new URL(urlStr);
HttpURLConnection httpConn = (HttpURLConnection) url
.openConnection();
// 设置连接属性
httpConn.setConnectTimeout(3000);
httpConn.setDoInput(true);
httpConn.setRequestMethod("GET");
// 获取相应码
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相当于内存输出流
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
// 将输入流转移到内存输出流中
try
{
while ((len = inputStream.read(buffer, 0, buffer.length)) != -1)
{
out.write(buffer, 0, len);
}
// 将内存流转换为字符串
jsonStr = new String(out.toByteArray());
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
return jsonStr;
}
}
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.exception.NestableRuntimeException网上百度了一下原因，原来是要用commons-lang-2.4.jar这个包，我的系统中是commons-lang3-3.4.jar，而lang3与lang目录有改变，所以会有错误。由于系统要使用lang3版本，因此此种方法也无法使用。
后来没办法，我还是用的淘宝的API来联网查询，只不过对于获取到的信息用GSON进行解析的，代码如下：
public static String getAddressByIP(String strIP)
{
try
{
URL url = new URL( "http://ip.taobao.com/service/getIpInfo.php?ip=" + strIP);
URLConnection conn = url.openConnection();
BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "GBK"));
String line = null;
StringBuffer result = new StringBuffer();
while((line = reader.readLine()) != null)
{
result.append(line);
}
reader.close();
if(result.indexOf("0")==8){
String json_date = result.substring(17, result.length()-1);
Gson gson = new Gson();
IPAddress address = gson.fromJson(json_date,IPAddress.class);
if(address.getRegion().equals("")){
return null;
}
return address.getRegion();
}else{
return null;
}
}
catch( IOException e)
{
return "读取失败";
}
}
public class IPAddress {
String country;
String country_id;
String area;
String area_id;
String region;
String region_id;
String city;
String city_id;
String county;
String county_id;
String isp;
String isp_id;
String ip;
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getCountry_id() {
return country_id;
}
public void setCountry_id(String countryId) {
country_id = countryId;
}
public String getArea() {
return area;
}
public void setArea(String area) {
this.area = area;
}
public String getArea_id() {
return area_id;
}
public void setArea_id(String areaId) {
area_id = areaId;
}
public String getRegion() {
return region;
}
public void setRegion(String region) {
this.region = region;
}
public String getRegion_id() {
return region_id;
}
public void setRegion_id(String regionId) {
region_id = regionId;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getCity_id() {
return city_id;
}
public void setCity_id(String cityId) {
city_id = cityId;
}
public String getCounty() {
return county;
}
public void setCounty(String county) {
this.county = county;
}
public String getCounty_id() {
return county_id;
}
public void setCounty_id(String countyId) {
county_id = countyId;
}
public String getIsp() {
return isp;
}
public void setIsp(String isp) {
this.isp = isp;
}
public String getIsp_id() {
return isp_id;
}
public void setIsp_id(String ispId) {
isp_id = ispId;
}
public String getIp() {
return ip;
}
public void setIp(String ip) {
this.ip = ip;
}
}
解析出来的代码如下：
{"code":0,"data":{"country":"\u4e2d\u56fd","country_id":"CN","area":"\u534e\u5317","area_id":"100000","region":"\u5317\u4eac\u5e02","region_id":"110000","city":"\u5317\u4eac\u5e02","city_id":"110100","county":"","county_id":"-1","isp":"\u9e4f\u535a\u58eb","isp_id":"1000143","ip":"XXX.XXX.XXX.XXX"}}IPAddress类是我根据解析到的数据自己设定的。至此，终于成功。写贴纪念一下。