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通过用户IP获取用户地址信息
首先得到ip,有两种方式
第一种方式:通过jsoup从一些工具网页获取
第二种方式:通过获取用户对象信息得到
前者需要jsoup的jar包,不需要用户请求;
后者需要用户发出请求,有request对象。
1.1 jsoup抓取ip信息
public static String getPublicIP() {
String ip = "";
try {
Document doc = Jsoup.connect("http://www.ip138.com/ip2city.asp").ignoreContentType(false).get();
Elements els = doc.select("center");
for (org.jsoup.nodes.Element el : els) {
ip = el.text();
}
ip = ip.replaceAll("[^0-9.]", "");
} catch (IOException e1) {
e1.printStackTrace();
}finally {
}
return ip;
}
1.2 request获取ip
public static String getIpAddr(HttpServletRequest request) {
String ip = request.getHeader("x-forwarded-for");
if(ip == null || ip.length() == 0 ||"unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 ||"unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("WL-Proxy-Client-IP");
}
if(ip == null || ip.length() == 0 ||"unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
本地启动的服务返回的是127.0.0.1;
内网访问获取的是内网IP地址;
远程访问获取到公网IP。
- 定义一个方法,将字符拼接成字符串
private static String readAll(Reader rd) throws IOException {
StringBuilder sb = new StringBuilder();
int cp;
while ((cp = rd.read()) != -1) {
sb.append((char) cp);
}
return sb.toString();
}
- 将URL资源解析成json对象
public static JSONObject readJsonFromUrl(String url) throws IOException, JSONException {
InputStream is = null;
try {
is = new URL(url).openStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(is, Charset.forName("UTF-8")));
String jsonText = readAll(rd);
JSONObject json = JSONObject.fromObject(jsonText);
// System.out.println(json);
return json;
} finally {
//关闭输入流
is.close();
}
}
- 传入用户IP获取当地地址名
public static String getAddrName(String IP) throws JSONException, IOException{
//这里调用百度的ip定位api服务 详见 http://api.map.baidu.com/lbsapi/cloud/ip-location-api.htm
JSONObject json = readJsonFromUrl("http://api.map.baidu.com/location/ip?ak=iTrwV0ddxeFT6QUziPQh2wgGofxmWkmg&ip="+IP);
/* 获取到的json对象:
* {"address":"CN|河北|保定|None|UNICOM|0|0",
* "content":{"address_detail":{"province":"河北省","city":"保定市","street":"","district":"","street_number":"","city_code":307},
* "address":"河北省保定市","point":{"x":"12856963.35","y":"4678360.5"}},
* "status":0}
*/
//如果IP是本地127.0.0.1或者内网IP192.168则status分别返回1和2
String status = json.opt("status").toString();
if(!"0".equals(status)){
return "";
}
JSONObject content=((JSONObject) json).getJSONObject("content"); //获取json对象里的content对象
JSONObject addr_detail=((JSONObject) content).getJSONObject("address_detail");//从content对象里获取address_detail
String city=addr_detail.opt("city").toString(); //获取市名,可以根据具体需求更改
return city;
}
测试一下,所有方法都是静态的,类名getPuplic
//String scity=getPuplic.getAddrName("218.83.245.210"); //上海IP
String IP1 = getPuplic.getPublicIP();
String IP2 = getPuplic.getIpAddr(request);
String scity1=getPuplic.getAddrName(IP1);
String scity2=getPuplic.getAddrName(IP2);
logger.info("---------jsoup定位-------------"+scity1);
logger.info("---------request-------------"+scity2);
用第一种方式需要引入的包
import org.jsoup.Connection;
import org.jsoup.Jsoup;
import org.jsoup.select.Elements;
import net.sf.json.JSONException;
import net.sf.json.JSONObject;