HttpServletRequest: getQueryString() : HttpServletRequest « javax.servlet.http « Java by API

1. Java by API
2. javax.servlet.http
3. HttpServletRequest

HttpServletRequest: getQueryString()

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class QueryString extends HttpServlet {

  public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException,
      IOException {
    res.setContentType("text/plain");
    PrintWriter out = res.getWriter();

    out.println("Query String:");
    out.println(req.getQueryString());
    out.println();

    out.println("Request Parameters:");
    Enumeration e = req.getParameterNames();
    while (e.hasMoreElements()) {
      String name = (String) e.nextElement();
      String values[] = req.getParameterValues(name);
      if (values != null) {
        for (int i = 0; i < values.length; i++) {
          out.println(name + " (" + i + "): " + values[i]);
        }
      }
    }
  }
}

           
       

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