I have an HTML form like this:
form.html:
<html>
<body>
your name is :<br><br>
<form ACTION="../post2" METHOD="POST">
<input name="name" type="text" id="name"/>
<input name="send" type="submit" value="send"/>
</form>
</body>
<html>
The servlet to serve this request:
post2.class:
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.*;
public class post2 extends HttpServlet
{
protected void doDo(HttpServletRequest request,HttpServletResponse response)
throws IOException{
String name = request.getParameter("name");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.println("<HTML><BODY>");
out.println("<H2>hello "+name+"</H2>");
out.println("<BR><BR>");
out.println("info:");
out.println("<BR><BR>");
out.println("<H2>metoda GET</H2>");
out.println("<BR><BR>");
out.println("SERVER_NAME="+request.getServerName()+"<BR>");
out.println("REQUEST_METHOD="+request.getMethod()+"<BR>");
out.println("QUERY_STRING="+request.getQueryString()+"<BR>");
out.println("REMOTE_HOST="+request.getRemoteHost()+"<BR>");
out.println("REMOTE_ADDR="+request.getRemoteAddr());
out.println("</BODY></HTML>");
}
@Override
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws IOException {
doDo(request,response);
}
@Override
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws IOException {
doDo(request,response);
}
}
and the result is :
hello null
info:
SERVER_NAME=localhost
REQUEST_METHOD=GET
QUERY_STRING=null
REMOTE_HOST=127.0.0.1
REMOTE_ADDR=127.0.0.1
what is wrong ? For me it seems that the servlet don’t see post method from form. Please help, Im completly have no idea why it not working properly…
the result from the wireshark:
648 126.229267 87.105.184.89 192.168.1.100 HTTP 557 POST /post2
HTTP/1.1 (application/x-www-form-urlencoded)953 379.456916 192.168.1.100 87.105.184.89 HTTP 239 HTTP/1.1 302 Moved
Temporarily955 379.462518 192.168.1.100 87.105.184.89 HTTP 470 GET /post2/
HTTP/1.1957 379.463979 192.168.1.100 87.105.184.89 HTTP 431 HTTP/1.1 200 OK
(text/html)
routing logic:
tomcat\webapps\ROOT\form.html –> \tomcat\webapps\post2\WEB-INF\classes\post2.class
Could this be due to a redirect? If “/post2” redirects to “/post2/” your POST request would be transformed into a GET, losing all post data.
Try accessing “/post2” directly in your browser and see what happens.