package org.kodejava.servlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
@WebServlet(name = "ClientAddressServlet", urlPatterns = "/client-ip")
public class ClientAddressServlet extends HttpServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// Get client's IP address
String clientIP = request.getRemoteAddr();
// Get client's host name
String clintHost = request.getRemoteHost();
response.setContentType("text/plain");
PrintWriter out = response.getWriter();
out.println("IP : " + clientIP);
out.println("Host: " + clintHost);
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);
}
}
Maven dependencies
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
</dependency>
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