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Servlets

can we use post method in urlrewriting?

yuvraj kotegar

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Posts: 120

posted 11 years ago

can we use the post method???

if yes what is the reason?
[ October 02, 2008: Message edited by: Bear Bibeault ]

Ulf Dittmer

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Posts: 43016

posted 11 years ago

URL rewriting is used for URLs that get sent from the server to the client, whereas POST is a way to transfer data from the client to the server. So the two don't intersect. Can you clarify what you mean?

yuvraj kotegar

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Posts: 120

posted 11 years ago

i mean suppose say you have a small program ie servlet can you write a doPost method in it instead of doGet??

yuvraj kotegar

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Posts: 120

posted 11 years ago

package sessions;
 
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Random; 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
 public class TokenServlet extends HttpServlet {
 
 protected void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
 String tokensID=request.getParameter("tokenID");
 response.setContentType("text/html");
 PrintWriter prnwriter=response.getWriter();
 prnwriter.println("<html><head><title>Tokens</title></head><body>");
 
 prnwriter.println("style=\"fonr-family:verdana;font-size:10pt\">");
 if(tokensID==null){
 Random rnd=new Random();
 tokensID=Long.toString(rnd.nextLong());
 prnwriter.println("Welcome.A new token " + tokensID + " is now established");
 }
 else {
prnwriter.println("WELCOME back .. your token is " + tokensID + ".");
 }
 String requestURLSame=request.getRequestURL().toString()+"?tokens=" +tokensID;
 String requestURLNew=request.getRequestURL().toString();
 
 prnwriter.println("Click <a href= " +requestURLSame + " >here</a>again to continue browsing with the "+" same identity.");
 prnwriter.println("Otherwise click <a href="+requestURLNew +">here</a>again to start browsing with a new identity. ");
 prnwriter.println("</body></html>");
 prnwriter.close();
}
}

[ October 02, 2008: Message edited by: yuvraj kotegar ]
[ October 02, 2008: Message edited by: yuvraj kotegar ]

Ulf Dittmer

Rancher

Posts: 43016

posted 11 years ago

doGet and doPost are for handling client requests; you can have either or both in a servlet, depending on how it is used. But what do those methods have to do with URL rewriting?

yuvraj kotegar

Ranch Hand

Posts: 120

posted 11 years ago

because i tried the same above programe with doPost it did'nt work why??

Bear Bibeault

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posted 11 years ago

"Didn't work"?

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yuvraj kotegar

Ranch Hand

Posts: 120

posted 11 years ago

did not work...

[ October 02, 2008: Message edited by: yuvraj kotegar ]

[ October 02, 2008: Message edited by: yuvraj kotegar ]

Ulf Dittmer

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Posts: 43016

posted 11 years ago

What Bear meant was "what exactly did you try, and how exactly did it not work?" TellTheDetails

arulk pillai

Author

Posts: 3445

posted 11 years ago

Sample doGet & doPost

Do you have a form element to test your post

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Amit Ghorpade

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posted 11 years ago

Yuvraj your sample code has only a doGet() method. Now if a HTTP request uses GET, your code will work fine. But if a POST is used, it will fail, since your servlet does not support it.
Refer to arulk's code for a sample implementation of both doGet() and doPost().

Along with the servlet, if you have the security constraints in your DD,then the DD must also support both these methods.

Hope this helps

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