通过ip获取用户的地址，定位所在的城市，采用淘宝的地址库，理由很简单，大公司，信得过
打开下面链接
http://ip.taobao.com/
可以输入ip查询所在地址，也提供的相应api，通过java模拟http发出请求，taobao地址库会返回json串，获取所在的地址。
注意：查询不要过于频繁，建议10秒钟发一次请求
模拟http发请求的类
package easy.http;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.Map;
import java.util.Map.Entry;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
//import com.gson.bean.Attachment;
/**
* https 请求 微信为https的请求
* @author L.cm
* @date 2013-10-9 下午2:40:19
*/
public class HttpKit2 {
private static final String DEFAULT_CHARSET = "UTF-8";
/**
* 发送Get请求
* @param url
* @return
* @throws NoSuchProviderException
* @throws NoSuchAlgorithmException
* @throws IOException
* @throws KeyManagementException
*/
public static String getSSL(String url) throws NoSuchAlgorithmException, NoSuchProviderException, IOException, KeyManagementException {
TrustManager[] tm = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
// 从上述SSLContext对象中得到SSLSocketFactory对象
SSLSocketFactory ssf = sslContext.getSocketFactory();
URL urlGet = new URL(url);
HttpsURLConnection http = (HttpsURLConnection) urlGet.openConnection();
// 连接超时
http.setConnectTimeout(25000);
// 读取超时 --服务器响应比较慢，增大时间
http.setReadTimeout(25000);
http.setRequestMethod("GET");
http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
http.setSSLSocketFactory(ssf);
http.setDoOutput(true);
http.setDoInput(true);
http.connect();
String result=returnString(http);
if (http != null) {
// 关闭连接
http.disconnect();
}
return result;
}
public static String returnString(HttpsURLConnection http) throws IOException{
InputStream input = null;
if (http.getResponseCode() == 200) {
input = http.getInputStream();
} else {
input = http.getErrorStream();
}
// InputStream in = http.getInputStream();
BufferedReader read = new BufferedReader(new InputStreamReader(input, DEFAULT_CHARSET));
String valueString = null;
StringBuffer bufferRes = new StringBuffer();
while ((valueString = read.readLine()) != null){
bufferRes.append(valueString);
}
input.close();
return bufferRes.toString();
}
public static String returnString(HttpURLConnection http) throws IOException{
InputStream input = null;
if (http.getResponseCode() == 200) {
input = http.getInputStream();
} else {
input = http.getErrorStream();
}
// InputStream in = http.getInputStream();
BufferedReader read = new BufferedReader(new InputStreamReader(input, DEFAULT_CHARSET));
String valueString = null;
StringBuffer bufferRes = new StringBuffer();
while ((valueString = read.readLine()) != null){
bufferRes.append(valueString);
}
input.close();
return bufferRes.toString();
}
/**
* 发送Get请求
* @param url
* @return
* @throws NoSuchProviderException
* @throws NoSuchAlgorithmException
* @throws IOException
* @throws KeyManagementException
*/
public static String get(String url) throws NoSuchAlgorithmException, NoSuchProviderException, IOException, KeyManagementException {
URL urlGet = new URL(url);
HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
// 连接超时
http.setConnectTimeout(25000);
// 读取超时 --服务器响应比较慢，增大时间
http.setReadTimeout(25000);
http.setRequestMethod("GET");
http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
http.setDoOutput(true);
http.setDoInput(true);
http.connect();
String result=returnString(http);
if (http != null) {
// 关闭连接
http.disconnect();
}
return result;
}
/**
* 发送Get请求
* @param url
* @param params
* @return
* @throws IOException
* @throws NoSuchProviderException
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
*/
public static String get(String url, Map<String, String> params) throws KeyManagementException, NoSuchAlgorithmException, NoSuchProviderException, IOException {
return get(initParams(url, params));
}
public static String getSSL(String url, Map<String, String> params) throws KeyManagementException, NoSuchAlgorithmException, NoSuchProviderException, IOException {
return getSSL(initParams(url, params));
}
/**
* 发送post请求
* @param url
* @return
* @throws NoSuchProviderException
* @throws NoSuchAlgorithmException
* @throws IOException
* @throws KeyManagementException
*/
public static String post(String url,String params) throws NoSuchAlgorithmException, NoSuchProviderException, IOException, KeyManagementException {
URL urlGet = new URL(url);
HttpURLConnection http = (HttpURLConnection) urlGet.openConnection();
// 连接超时
http.setConnectTimeout(25000);
// 读取超时 --服务器响应比较慢，增大时间
http.setReadTimeout(25000);
http.setRequestMethod("GET");
http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
http.setDoOutput(true);
http.setDoInput(true);
http.connect();
OutputStream out = http.getOutputStream();
out.write(params.getBytes("UTF-8"));
out.flush();
out.close();
String result=returnString(http);
if (http != null) {
// 关闭连接
http.disconnect();
}
return result;
}
/**
* 发送Post https请求
* @param url
* @param params
* @return
* @throws IOException
* @throws NoSuchProviderException
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
*/
public static String postSSL(String url, String params) throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException {
TrustManager[] tm = { new MyX509TrustManager() };
SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
sslContext.init(null, tm, new java.security.SecureRandom());
// 从上述SSLContext对象中得到SSLSocketFactory对象
SSLSocketFactory ssf = sslContext.getSocketFactory();
URL urlGet = new URL(url);
HttpsURLConnection http = (HttpsURLConnection) urlGet.openConnection();
// 连接超时
http.setConnectTimeout(25000);
// 读取超时 --服务器响应比较慢，增大时间
http.setReadTimeout(25000);
http.setRequestMethod("POST");
http.setRequestProperty("Content-Type","application/x-www-form-urlencoded");
http.setSSLSocketFactory(ssf);
http.setDoOutput(true);
http.setDoInput(true);
http.connect();
OutputStream out = http.getOutputStream();
out.write(params.getBytes("UTF-8"));
out.flush();
out.close();
String result=returnString(http);
if (http != null) {
// 关闭连接
http.disconnect();
}
return result;
}
/**
* 上传媒体文件
* @param url
* @param params
* @param file
* @return
* @throws IOException
* @throws NoSuchAlgorithmException
* @throws NoSuchProviderException
* @throws KeyManagementException
*/
public static String upload(String url,File file) throws IOException, NoSuchAlgorithmException, NoSuchProviderException, KeyManagementException {
String BOUNDARY = "----WebKitFormBoundaryiDGnV9zdZA1eM1yL"; // 定义数据分隔线
StringBuffer bufferRes = null;
URL urlGet = new URL(url);
HttpURLConnection conn = (HttpURLConnection) urlGet.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("user-agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36");
conn.setRequestProperty("Charsert", "UTF-8");
conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + BOUNDARY);
OutputStream out = new DataOutputStream(conn.getOutputStream());
byte[] end_data = ("\r\n--" + BOUNDARY + "--\r\n").getBytes();// 定义最后数据分隔线
StringBuilder sb = new StringBuilder();
sb.append("--");
sb.append(BOUNDARY);
sb.append("\r\n");
sb.append("Content-Disposition: form-data;name=\"media\";filename=\""+ file.getName() + "\"\r\n");
sb.append("Content-Type:application/octet-stream\r\n\r\n");
byte[] data = sb.toString().getBytes();
out.write(data);
DataInputStream fs = new DataInputStream(new FileInputStream(file));
int bytes = 0;
byte[] bufferOut = new byte[1024];
while ((bytes = fs.read(bufferOut)) != -1) {
out.write(bufferOut, 0, bytes);
}
out.write("\r\n".getBytes()); //多个文件时，二个文件之间加入这个
fs.close();
out.write(end_data);
out.flush();
out.close();
// 定义BufferedReader输入流来读取URL的响应
InputStream in = conn.getInputStream();
BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
String valueString = null;
bufferRes = new StringBuffer();
while ((valueString = read.readLine()) != null){
bufferRes.append(valueString);
}
in.close();
if (conn != null) {
// 关闭连接
conn.disconnect();
}
return bufferRes.toString();
}
/**
* 下载资源
* @param url
* @return
* @throws IOException
*/
// public static Attachment download(String url) throws IOException{
// Attachment att = new Attachment();
// URL urlGet = new URL(url);
// HttpURLConnection conn = (HttpURLConnection) urlGet.openConnection();
// conn.setDoOutput(true);
// conn.setDoInput(true);
// conn.setUseCaches(false);
// conn.setRequestMethod("GET");
// conn.connect();
// if(conn.getContentType().equalsIgnoreCase("text/plain")){
// // 定义BufferedReader输入流来读取URL的响应
// InputStream in = conn.getInputStream();
// BufferedReader read = new BufferedReader(new InputStreamReader(in, DEFAULT_CHARSET));
// String valueString = null;
// StringBuffer bufferRes = new StringBuffer();
// while ((valueString = read.readLine()) != null){
// bufferRes.append(valueString);
// }
// in.close();
// att.setError(bufferRes.toString());
// }else{
// BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());
// String ds = conn.getHeaderField("Content-disposition");
// String fullName = ds.substring(ds.indexOf("filename=\"")+10,ds.length()-1);
// String relName = fullName.substring(0, fullName.lastIndexOf("."));
// String suffix = fullName.substring(relName.length()+1);
//
// att.setFullName(fullName);
// att.setFileName(relName);
// att.setSuffix(suffix);
// att.setContentLength(conn.getHeaderField("Content-Length"));
// att.setContentType(conn.getHeaderField("Content-Type"));
//
// att.setFileStream(bis);
// }
// return att;
// }
/**
*
* @param url
* @param params
* @return
*/
private static String initParams(String url, Map<String, String> params){
if (null == params || params.isEmpty()) {
return url;
}
StringBuilder sb = new StringBuilder(url);
if (url.indexOf("?") == -1) {
sb.append("?");
} else {
sb.append("&");
}
boolean first = true;
for (Entry<String, String> entry : params.entrySet()) {
if (first) {
first = false;
} else {
sb.append("&");
}
String key = entry.getKey();
String value = entry.getValue();
sb.append(key).append("=");
if (value!=null && !"".equals(value)) {
try {
sb.append(URLEncoder.encode(value, DEFAULT_CHARSET));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
}
return sb.toString();
}
public static void main(String[] args) {
String fname = "dsasdas.mp4";
String s = fname.substring(0, fname.lastIndexOf("."));
String f = fname.substring(s.length()+1);
System.out.println(f);
}
}
调用上面的工具类分析ip
String str=HttpKit2.get("http://ip.taobao.com/service/getIpInfo.php?ip="+ip);
JSONObject json=JSON.parseObject(str);
JSONObject reJson=null;
if(json!=null){
if(json.getIntValue("code")==0){
reJson=json.getJSONObject("data");
String country=data.getString("country");//获取国家
String region=data.getString("region");//获取省
String city=data.getString("city");//获取城市
String isp=data.getString("isp");//获取运营商
}
}