The following programs show u how to invoke a post method in a servlet from an applet
servlet program
import javax.servlet.http.*;
import javax.servlet.*;
import java.io.*;
public class calldemo extends HttpServlet {
public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
res.setContentType("text/html");
String s = req.getParameter("name");
PrintWriter pw = res.getWriter();
pw.println("hello from post"+s);
}
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
res.setContentType("text/html");
String s = req.getParameter("name");
PrintWriter pw = res.getWriter();
pw.println("hello from get"+s);
}
}
Applet program
(run this using appletviewer since i have printed the response from the servlet in the dos prompt)
import java.applet.*;
import java.net.*;
import java.io.*;
public class call extends Applet {
public void init() {
try{
URL url = new URL("http://localhost:8080/servlet/calldemo?name=selva");
URLConnection uc = url.openConnection();
DataInputStream out = new DataInputStream(new BufferedInputStream(uc.getInputStream()));
System.out.println(out.readLine());
}catch(Exception e)
{}
}
}
//<applet code = call height = 400 width = 400></applet>
bye