Java 从 JSP 请求/会话对象获取服务器 IP 地址
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Get Server IP address from JSP Request/session object
提问by Don Ch
How can I get the IP address of the server from a JSP page?
如何从 JSP 页面获取服务器的 IP 地址？
Right now, all I can do is request.getLocalName(), which returns the server name, not the IP address?
现在，我所能做的就是 request.getLocalName()，它返回服务器名称，而不是 IP 地址？
采纳答案by ig0774
Actually, for the IP address of the server, you need to use
实际上，对于服务器的IP地址，您需要使用
String serverIP = request.getLocalAddr();
回答by Abhijeet Pathak
String sIPAddr = request.getRemoteAddr();
回答by Aaron Saunders
String addr = request.getRemoteAddr();
回答by Satish Sharma
request.getHeader("X_FORWARDED_FOR")
回答by Nux
To get an actual server IP and hostname (actual and not set by e.g. a proxy) use this:
要获取实际的服务器 IP 和主机名（实际的而不是由例如代理设置的），请使用以下命令：
<%@ page import="java.net.*" %>
[...]
<%
String hostname, serverAddress;
hostname = "error";
serverAddress = "error";
try {
InetAddress inetAddress;
inetAddress = InetAddress.getLocalHost();
hostname = inetAddress.getHostName();
serverAddress = inetAddress.toString();
} catch (UnknownHostException e) {
e.printStackTrace();
}
%>
<li>InetAddress: <%=serverAddress %>
<li>InetAddress.hostname: <%=hostname %>
