How to get client's address in a servlet
This is detailed java code to get
client's address in a servlet. In this example we have used method getremoteAddr()
of the ServletRequest interface which returns IP address of the client in the
string format.
Syntax of the method : java.lang.String
getRemoteAddr()
We have used a jsp page that is used to send a request
to a servlet that execute the request and find the ID address of the client's
request. Before run this code create a new directory named "user" in
the tomcat-6.0.16/webapps and paste WEB-INF directory in same directory.
get_address.jsp
<%@page language="java" session="true" contentType="text/html;charset=ISO-8859-1" %>
<b><font color="blue">Please Enter your Full Name here:</font></b><br>
<form name="frm" method="get" action="../user/GetAddress">
<table border = "0">
<tr align="left" valign="top">
<td>First Name:</td>
<td><input type="text" name ="name" /></td>
</tr>
<tr align="left" valign="top">
<td></td>
<td><input type="submit" name="submit" value="submit"/></td>
</tr>
</table>
</form>
|
Save this code as a .jsp file named "get_address.jsp"
in the directory Tomcat-6.0.16/webapps/user/ and you can run this jsp page with
following url in address bar of the browser "http://localhost:8080/user/get_address.jsp"
GetAddress.java
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class GetAddress extends HttpServlet {
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws IOException, ServletException{
response.setContentType("text/html");
PrintWriter out = response.getWriter();
String name = request.getParameter("name");
out.println("<h3>You have entered name : " + name + "<br>");
out.println("<b><font color='blue'>IP Address of request : </font></b>"
+request.getRemoteAddr()+"<h3>");
}
}
|
Compile this java code and save .class file in
directory C:\apache-tomcat-6.0.16\webapps\user\WEB-INF\classes.
web.xml
<servlet>
<servlet-name>GetAddress</servlet-name>
<servlet-class>GetAddress</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>GetAddress</servlet-name>
<url-pattern>/GetAddress</url-pattern>
</servlet-mapping>
|
This is web .xml file use to map servlet. When run jsp
page in the browser.....
User enters first name and click on submit
button.......
Download Source Code
|
Del.icio.us
Digg
Google
Spurl
Blink
Furl
Simpy
Y! MyWeb
