昨天写项目，突然看到需求上要求，根据ip获取ip的地理位置，顿时感觉很懵逼（本人是新手），然后就去找度娘求解，虽然过程有点波折，但是还是解决了。下面看一下我们详细的解决步骤（如有不同见解，请大佬指教一下）：
1.首先创建好，我们的查询ip地址的工具类：
package com.zr.text; import java.io.BufferedReader; import java.io.DataOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.HttpURLConnection; import java.net.URL; /** * 根据IP地址获取详细的地域信息 */ public class AddressUtils { /** * 获取IP所在地址 */ public String getAddresses(String content, String encodingString) throws UnsupportedEncodingException { // 淘宝的接口 String urlStr = "http://ip.taobao.com/service/getIpInfo.php"; String returnStr = this.getResult(urlStr, content, encodingString); if (returnStr != null) { // 处理返回的省市区信息 System.out.println(returnStr); String[] temp = returnStr.split(","); if (temp.length < 3) { return "0";// 无效IP，局域网测试 } String region = (temp[5].split(":"))[1].replaceAll("\"", ""); region = decodeUnicode(region);// 省份 String country = ""; String area = ""; // String region = ""; String city = ""; String county = ""; String isp = ""; for (int i = 0; i < temp.length; i++) { switch (i) { case 1: country = (temp[i].split(":"))[2].replaceAll("\"", ""); country = decodeUnicode(country);// 国家 break; case 3: area = (temp[i].split(":"))[1].replaceAll("\"", ""); area = decodeUnicode(area);// 地区 break; case 5: region = (temp[i].split(":"))[1].replaceAll("\"", ""); region = decodeUnicode(region);// 省份 break; case 7: city = (temp[i].split(":"))[1].replaceAll("\"", ""); city = decodeUnicode(city);// 市区 break; case 9: county = (temp[i].split(":"))[1].replaceAll("\"", ""); county = decodeUnicode(county);// 地区 break; case 11: isp = (temp[i].split(":"))[1].replaceAll("\"", ""); isp = decodeUnicode(isp); // ISP公司 break; } } System.out.println(country + "=" + area + "=" + region + "=" + city + "=" + county + "=" + isp); return region; } return null; } /** * 请求接口 */ private String getResult(String urlStr, String content, String encoding) { URL url = null; HttpURLConnection connection = null; try { url = new URL(urlStr); connection = (HttpURLConnection) url.openConnection();// 新建连接实例 connection.setConnectTimeout(10000);// 设置连接超时时间，单位毫秒 connection.setReadTimeout(10000);// 设置读取数据超时时间，单位毫秒 connection.setDoOutput(true);// 是否打开输出流 true|false connection.setDoInput(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());// 打开输出流往对端服务器写数据 out.writeBytes(content);// 写数据,也就是提交你的表单 name=xxx&pwd=xxx out.flush();// 刷新 out.close();// 关闭输出流 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 (IOException e) { e.printStackTrace(); } finally { if (connection != null) { connection.disconnect();// 关闭连接 } } return null; } /** * unicode 转换成 中文 */ public static String decodeUnicode(String theString) { char aChar; int len = theString.length(); StringBuffer outBuffer = new StringBuffer(len); for (int x = 0; x < len;) { aChar = theString.charAt(x++); if (aChar == '\\') { aChar = theString.charAt(x++); if (aChar == 'u') { int value = 0; for (int i = 0; i < 4; i++) { aChar = theString.charAt(x++); switch (aChar) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': value = (value << 4) + aChar - '0'; break; case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': value = (value << 4) + 10 + aChar - 'a'; break; case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': value = (value << 4) + 10 + aChar - 'A'; break; default: throw new IllegalArgumentException("Malformed encoding."); } } outBuffer.append((char) value); } else { if (aChar == 't') { aChar = '\t'; } else if (aChar == 'r') { aChar = '\r'; } else if (aChar == 'n') { aChar = '\n'; } else if (aChar == 'f') { aChar = '\f'; } outBuffer.append(aChar); } } else { outBuffer.append(aChar); } } return outBuffer.toString(); } }然后我们创建一个测试类，测试一下：
package com.zr.ces; import java.io.UnsupportedEncodingException; import com.zr.text.AddressUtils; public class PinYinUtil { // 测试 public static void main(String[] args) { AddressUtils addressUtils = new AddressUtils(); String ip = "123.135.143.226"; String address = ""; try { address = addressUtils.getAddresses("ip=" + ip, "utf-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } System.out.println(address); //输出结果为：泰安==联通==370900 } }OK，这样就大功告成啦（但是ip获取位置信息只能获取到==市==），如果想要获取到区的话，还是要获取经纬度，调用接口
