Servlet获取客户端ip地址和mac地址

     转自：http://babyduncan.iteye.com/blog/892351 
   

     Java代码   
     
   
package com.babyDuncan.java;  
  
import java.io.IOException;  
import java.io.InputStreamReader;  
import java.io.LineNumberReader;  
import java.io.PrintWriter;  
  
import javax.servlet.ServletException;  
import javax.servlet.http.HttpServlet;  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
  
public class ipServlet extends HttpServlet {  
  
    public void doGet(HttpServletRequest request, HttpServletResponse response)  
            throws ServletException, IOException {  
        doPost(request, response);  
    }  
  
    public void doPost(HttpServletRequest request, HttpServletResponse response)  
            throws ServletException, IOException {  
  
        String ip = getRemoteAddress(request);  
        System.out.println(ip);  
        System.out.println(getMACAddress(ip));  
  
        response.setContentType("text/html");  
        PrintWriter out = response.getWriter();  
        out  
                .println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");  
        out.println("<HTML>");  
        out.println("  <HEAD><TITLE>A Servlet</TITLE></HEAD>");  
        out.println("  <BODY>");  
        out.print("    This is ");  
        out.print(this.getClass());  
        out.println(", using the POST method");  
        out.println("  </BODY>");  
        out.println("</HTML>");  
        out.flush();  
        out.close();  
    }  
  
    public String getRemoteAddress(HttpServletRequest request) {  
        String ip = request.getHeader("x-forwarded-for");  
        if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  
            ip = request.getHeader("Proxy-Client-IP");  
        }  
        if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  
            ip = request.getHeader("WL-Proxy-Client-IP");  
        }  
        if (ip == null || ip.length() == 0 || ip.equalsIgnoreCase("unknown")) {  
            ip = request.getRemoteAddr();  
        }  
        return ip;  
    }  
  
    public String getMACAddress(String ip) {  
        String str = "";  
        String macAddress = "";  
        try {  
            Process p = Runtime.getRuntime().exec("nbtstat -A " + ip);  
            InputStreamReader ir = new InputStreamReader(p.getInputStream());  
            LineNumberReader input = new LineNumberReader(ir);  
            for (int i = 1; i < 100; i++) {  
                str = input.readLine();  
                if (str != null) {  
                    if (str.indexOf("MAC Address") > 1) {  
                        macAddress = str.substring(  
                                str.indexOf("MAC Address") + 14, str.length());  
                        break;  
                    }  
                }  
            }  
        } catch (IOException e) {  
            e.printStackTrace(System.out);  
        }  
        return macAddress;  
    }  
}  
访问地址：
http://hanvon-babydunc:8080/testServlet/servlet/ipServlet
运行结果：
192.168.10.18
00-26-C7-21-65-46
Servlet获取客户端ip地址和mac地址

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