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這篇文章將為大家詳細講解有關服務器的真實IP怎么利用java進行獲取，文章內容質量較高，因此小編分享給大家做個參考，希望大家閱讀完這篇文章后對相關知識有一定的了解。
實現代碼：
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.Inet4Address;
import java.net.InetAddress;
import java.net.InterfaceAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.springframework.http.HttpMethod;
/**
* 常用工具類
*
* @author 席紅蕾
* @date 2016-09-27
* @version 1.0
*/
public class WebToolUtils {
/**
* 獲取本地IP地址
*
* @throws SocketException
*/
public static String getLocalIP() throws UnknownHostException, SocketException {
if (isWindowsOS()) {
return InetAddress.getLocalHost().getHostAddress();
} else {
return getLinuxLocalIp();
}
}
/**
* 判斷操作系統是否是Windows
*
* @return
*/
public static boolean isWindowsOS() {
boolean isWindowsOS = false;
String osName = System.getProperty("os.name");
if (osName.toLowerCase().indexOf("windows") > -1) {
isWindowsOS = true;
}
return isWindowsOS;
}
/**
* 獲取本地Host名稱
*/
public static String getLocalHostName() throws UnknownHostException {
return InetAddress.getLocalHost().getHostName();
}
/**
* 獲取Linux下的IP地址
*
* @return IP地址
* @throws SocketException
*/
private static String getLinuxLocalIp() throws SocketException {
String ip = "";
try {
for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
NetworkInterface intf = en.nextElement();
String name = intf.getName();
if (!name.contains("docker") && !name.contains("lo")) {
for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
InetAddress inetAddress = enumIpAddr.nextElement();
if (!inetAddress.isLoopbackAddress()) {
String ipaddress = inetAddress.getHostAddress().toString();
if (!ipaddress.contains("::") && !ipaddress.contains("0:0:") && !ipaddress.contains("fe80")) {
ip = ipaddress;
System.out.println(ipaddress);
}
}
}
}
}
} catch (SocketException ex) {
System.out.println("獲取ip地址異常");
ip = "127.0.0.1";
ex.printStackTrace();
}
System.out.println("IP:"+ip);
return ip;
}
/**
* 獲取用戶真實IP地址，不使用request.getRemoteAddr();的原因是有可能用戶使用了代理軟件方式避免真實IP地址,
*
* 可是，如果通過了多級反向代理的話，X-Forwarded-For的值并不止一個，而是一串IP值，究竟哪個才是真正的用戶端的真實IP呢？
* 答案是取X-Forwarded-For中第一個非unknown的有效IP字符串。
*
* 如：X-Forwarded-For：192.168.1.110, 192.168.1.120, 192.168.1.130,
* 192.168.1.100
*
* 用戶真實IP為： 192.168.1.110
*
* @param request
* @return
*/
public static String getIpAddress(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.getHeader("HTTP_CLIENT_IP");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getHeader("HTTP_X_FORWARDED_FOR");
}
if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
return ip;
}
/**
* 向指定URL發送GET方法的請求
*
* @param url
* 發送請求的URL
* @param param
* 請求參數，請求參數應該是 name1=value1&name2=value2 的形式。
* @return URL 所代表遠程資源的響應結果
*/
// public static String sendGet(String url, String param) {
// String result = "";
// BufferedReader in = null;
// try {
// String urlNameString = url + "?" + param;
// URL realUrl = new URL(urlNameString);
// // 打開和URL之間的連接
// URLConnection connection = realUrl.openConnection();
// // 設置通用的請求屬性
// connection.setRequestProperty("accept", "*/*");
// connection.setRequestProperty("connection", "Keep-Alive");
// connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible;
// MSIE 6.0; Windows NT 5.1;SV1)");
// // 建立實際的連接
// connection.connect();
// // 獲取所有響應頭字段
// Map<String, List<String>> map = connection.getHeaderFields();
// // 遍歷所有的響應頭字段
// for (String key : map.keySet()) {
// System.out.println(key + "--->" + map.get(key));
// }
// // 定義 BufferedReader輸入流來讀取URL的響應
// in = new BufferedReader(new
// InputStreamReader(connection.getInputStream()));
// String line;
// while ((line = in.readLine()) != null) {
// result += line;
// }
// } catch (Exception e) {
// System.out.println("發送GET請求出現異常！" + e);
// e.printStackTrace();
// }
// // 使用finally塊來關閉輸入流
// finally {
// try {
// if (in != null) {
// in.close();
// }
// } catch (Exception e2) {
// e2.printStackTrace();
// }
// }
// return result;
// }
/**
* 向指定 URL 發送POST方法的請求
*
* @param url
* 發送請求的 URL
* @param param
* 請求參數，請求參數應該是 name1=value1&name2=value2 的形式。
* @return 所代表遠程資源的響應結果
*/
public static void sendPost(String pathUrl, String name, String pwd, String phone, String content) {
// PrintWriter out = null;
// BufferedReader in = null;
// String result = "";
// try {
// URL realUrl = new URL(url);
// // 打開和URL之間的連接
// URLConnection conn = realUrl.openConnection();
// // 設置通用的請求屬性
// conn.setRequestProperty("accept", "*/*");
// conn.setRequestProperty("connection", "Keep-Alive");
// conn.setRequestProperty("user-agent",
// "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// // 發送POST請求必須設置如下兩行
// conn.setDoOutput(true);
// conn.setDoInput(true);
// // 獲取URLConnection對象對應的輸出流
// out = new PrintWriter(conn.getOutputStream());
// // 發送請求參數
// out.print(param);
// // flush輸出流的緩沖
// out.flush();
// // 定義BufferedReader輸入流來讀取URL的響應
// in = new BufferedReader(
// new InputStreamReader(conn.getInputStream()));
// String line;
// while ((line = in.readLine()) != null) {
// result += line;
// }
// } catch (Exception e) {
// System.out.println("發送 POST 請求出現異常！"+e);
// e.printStackTrace();
// }
// //使用finally塊來關閉輸出流、輸入流
// finally{
// try{
// if(out!=null){
// out.close();
// }
// if(in!=null){
// in.close();
// }
// }
// catch(IOException ex){
// ex.printStackTrace();
// }
// }
// return result;
try {
// 建立連接
URL url = new URL(pathUrl);
HttpURLConnection httpConn = (HttpURLConnection) url.openConnection();
// //設置連接屬性
httpConn.setDoOutput(true);// 使用 URL 連接進行輸出
httpConn.setDoInput(true);// 使用 URL 連接進行輸入
httpConn.setUseCaches(false);// 忽略緩存
httpConn.setRequestMethod("POST");// 設置URL請求方法
String requestString = "客服端要以以流方式發送到服務端的數據...";
// 設置請求屬性
// 獲得數據字節數據，請求數據流的編碼，必須和下面服務器端處理請求流的編碼一致
byte[] requestStringBytes = requestString.getBytes("utf-8");
httpConn.setRequestProperty("Content-length", "" + requestStringBytes.length);
httpConn.setRequestProperty("Content-Type", " application/x-www-form-urlencoded");
httpConn.setRequestProperty("Connection", "Keep-Alive");// 維持長連接
httpConn.setRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
httpConn.setRequestProperty("Accept-Encoding", "gzip, deflate");
httpConn.setRequestProperty("Accept-Language", "zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3");
httpConn.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:49.0) Gecko/20100101 Firefox/49.0");
httpConn.setRequestProperty("Upgrade-Insecure-Requests", "1");
httpConn.setRequestProperty("account", name);
httpConn.setRequestProperty("passwd", pwd);
httpConn.setRequestProperty("phone", phone);
httpConn.setRequestProperty("content", content);
// 建立輸出流，并寫入數據
OutputStream outputStream = httpConn.getOutputStream();
outputStream.write(requestStringBytes);
outputStream.close();
// 獲得響應狀態
int responseCode = httpConn.getResponseCode();
if (HttpURLConnection.HTTP_OK == responseCode) {// 連接成功
// 當正確響應時處理數據
StringBuffer sb = new StringBuffer();
String readLine;
BufferedReader responseReader;
// 處理響應流，必須與服務器響應流輸出的編碼一致
responseReader = new BufferedReader(new InputStreamReader(httpConn.getInputStream(), "utf-8"));
while ((readLine = responseReader.readLine()) != null) {
sb.append(readLine).append("\n");
}
responseReader.close();
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
/**
* 執行一個HTTP POST請求，返回請求響應的HTML
*
* @param url
* 請求的URL地址
* @param params
* 請求的查詢參數,可以為null
* @return 返回請求響應的HTML
*/
public static void doPost(String url, String name, String pwd, String phone, String content) {
// 創建默認的httpClient實例.
CloseableHttpClient httpclient = HttpClients.createDefault();
// 創建httppost
HttpPost httppost = new HttpPost(url);
// 創建參數隊列
List<NameValuePair> formparams = new ArrayList<NameValuePair>();
formparams.add(new BasicNameValuePair("account", name));
formparams.add(new BasicNameValuePair("passwd", pwd));
formparams.add(new BasicNameValuePair("phone", phone));
formparams.add(new BasicNameValuePair("content", content));
UrlEncodedFormEntity uefEntity;
try {
uefEntity = new UrlEncodedFormEntity(formparams, "UTF-8");
httppost.setEntity(uefEntity);
System.out.println("executing request " + httppost.getURI());
CloseableHttpResponse response = httpclient.execute(httppost);
try {
HttpEntity entity = response.getEntity();
if (entity != null) {
System.out.println("--------------------------------------");
System.out.println("Response content: " + EntityUtils.toString(entity, "UTF-8"));
System.out.println("--------------------------------------");
}
} finally {
response.close();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
// 關閉連接,釋放資源
try {
httpclient.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}關于服務器的真實IP怎么利用java進行獲取就分享到這里了，希望以上內容可以對大家有一定的幫助，可以學到更多知識。如果覺得文章不錯，可以把它分享出去讓更多的人看到。
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