java根据IP获取用户所在地

最新推荐文章于 2025-03-10 13:22:52 发布

Onlyiyou

最新推荐文章于 2025-03-10 13:22:52 发布

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文章标签： Java IP

本文介绍了一个使用Java实现的IP地址定位工具，通过调用淘宝IP服务API，可以获取指定IP地址对应的地理位置信息，包括省份、市区及ISP等。

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import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONObject;
public class AddressUtils {
/**
* @param args
*/
public static void main(String[] args) {
AddressUtils addressUtils = new AddressUtils();
String ip = "118.213.176.78";
String address = "";
try {
address = addressUtils.getAddress("ip="+ip, "utf-8");
} catch (Exception e) {
e.printStackTrace();
}
System.out.println(address);
}
/**
* 获取地址
* @param params
* @param encoding
* @return
* @throws Exception
*/
public String getAddress(String params, String encoding) throws Exception{
String path = "http://ip.taobao.com/service/getIpInfo.php";
String returnStr = this.getRs(path, params, encoding);
JSONObject json=null;
if(returnStr != null){
json = new JSONObject(returnStr);
if("0".equals(json.get("code").toString())){
StringBuffer buffer = new StringBuffer();
//buffer.append(decodeUnicode(json.optJSONObject("data").getString("country")));//国家
//buffer.append(decodeUnicode(json.optJSONObject("data").getString("area")));//地区
buffer.append(decodeUnicode(json.optJSONObject("data").getString("region")));//省份
buffer.append(decodeUnicode(json.optJSONObject("data").getString("city")));//市区
buffer.append(decodeUnicode(json.optJSONObject("data").getString("county")));//地区
buffer.append(decodeUnicode(json.optJSONObject("data").getString("isp")));//ISP公司
System.out.println(buffer.toString());
return buffer.toString();
}else{
return "获取地址失败�?";
}
}
return null;
}
/**
* 从url获取结果
* @param path
* @param params
* @param encoding
* @return
*/
public String getRs(String path, String params, String encoding){
URL url = null;
HttpURLConnection connection = null;
try {
url = new URL(path);
connection = (HttpURLConnection)url.openConnection();// 新建连接实例
connection.setConnectTimeout(2000);// 设置连接超时时间，单位毫�?
connection.setReadTimeout(2000);// 设置读取数据超时时间，单位毫�?
connection.setDoInput(true);// 是否打开输出�? true|false
connection.setDoOutput(true);// 是否打开输入流true|false
connection.setRequestMethod("POST");// 提交方法POST|GET
connection.setUseCaches(false);// 是否缓存true|false
connection.connect();// 打开连接端口
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
out.writeBytes(params);
out.flush();
out.close();
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),encoding));
StringBuffer buffer = new StringBuffer();
String line = "";
while ((line = reader.readLine())!= null) {
buffer.append(line);
}
reader.close();
return buffer.toString();
} catch (Exception e) {
e.printStackTrace();
}finally{
connection.disconnect();// 关闭连接
}
return null;
}
/**
* 字符转码
* @param theString
* @return
*/
public static String decodeUnicode(String theString){
char aChar;
int len = theString.length();
StringBuffer buffer = new StringBuffer(len);
for (int i = 0; i < len;) {
aChar = theString.charAt(i++);
if(aChar == '\\'){
aChar = theString.charAt(i++);
if(aChar == 'u'){
int val = 0;
for(int j = 0; j < 4; j++){
aChar = theString.charAt(i++);
switch (aChar) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
val = (val << 4) + aChar - '0';
break;
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
val = (val << 4) + 10 + aChar - 'a';
break;
case 'A':
case 'B':
case 'C':
case 'D':
case 'E':
case 'F':
val = (val << 4) + 10 + aChar - 'A';
break;
default:
throw new IllegalArgumentException(
"Malformed encoding.");
}
}
buffer.append((char) val);
}else{
if(aChar == 't'){
aChar = '\t';
}
if(aChar == 'r'){
aChar = '\r';
}
if(aChar == 'n'){
aChar = '\n';
}
if(aChar == 'f'){
aChar = '\f';
}
buffer.append(aChar);
}
}else{
buffer.append(aChar);
}
}
return buffer.toString();
}
}