第一种直接用java自带的InetAddress类:
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import java.net.InetAddress;
import java.text.SimpleDateFormat;
import java.util.Date;
public class test{
public static void main(String[] args) throws Exception{
InetAddress addr = InetAddress.getLocalHost();
String address=addr.getHostName(); //获得本机名称
Date d = new Date();
SimpleDateFormat sdf = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" );
String dateNowStr = sdf.format(d);
System.out.println( "IP: " +ip+ " Name: " +address+ " Time: " +dateNowStr);
}
}
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输出结果如下:
第二种根据Web request请求获取:
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package demo.login;
import ins.framework.web.Struts2Action;
import java.text.SimpleDateFormat;
import java.util.Date;
import javax.servlet.http.HttpServletRequest;
import java.net.InetAddress;
@SuppressWarnings ( "serial" )
public class LoginAction extends Struts2Action {
public String login() {
HttpServletRequest request= this .getRequest();
this .getIpAddress(request);
return SUCCESS;
}
public void getIpAddress(HttpServletRequest request) {
String ip = request.getHeader( "x-forwarded-for" );
System.out.println( "x-forwarded-for ip: " + ip);
if (ip != null && ip.length() != 0 && ! "unknown" .equalsIgnoreCase(ip)) {
// 多次反向代理后会有多个ip值,第一个ip才是真实ip
if ( ip.indexOf( "," )!=- 1 ){
ip = ip.split( "," )[ 0 ];
}
}
if (ip == null || ip.length() == 0 || "unknown" .equalsIgnoreCase(ip)) {
ip = request.getHeader( "Proxy-Client-IP" );
System.out.println( "Proxy-Client-IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown" .equalsIgnoreCase(ip)) {
ip = request.getHeader( "WL-Proxy-Client-IP" );
System.out.println( "WL-Proxy-Client-IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown" .equalsIgnoreCase(ip)) {
ip = request.getHeader( "HTTP_CLIENT_IP" );
System.out.println( "HTTP_CLIENT_IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown" .equalsIgnoreCase(ip)) {
ip = request.getHeader( "HTTP_X_FORWARDED_FOR" );
System.out.println( "HTTP_X_FORWARDED_FOR ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown" .equalsIgnoreCase(ip)) {
ip = request.getHeader( "X-Real-IP" );
System.out.println( "X-Real-IP ip: " + ip);
}
if (ip == null || ip.length() == 0 || "unknown" .equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
System.out.println( "getRemoteAddr ip: " + ip);
}
//获取本地ip
if ( "0:0:0:0:0:0:0:1" .equals(ip)){
try {
ip = InetAddress.getLocalHost().getHostAddress();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.println( "getLocal ip: " + ip);
}
Date d = new Date();
SimpleDateFormat sdf = new SimpleDateFormat( "yyyy-MM-dd HH:mm:ss" );
String dateNowStr = sdf.format(d);
}
}
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本地会输出:
服务器端如下:
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原文链接:https://blog.csdn.net/jungeCSND/article/details/107024203