import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.net.*;
import java.sql.*;
import java.util.*;
import myDatabase;
/**
* ImageDBServlet.java
*
* This servlet demonstrates how to use JDBC driver to access the
* image database from the servlet, thus shows a 3-tier JDBC example.
*
* @author xjqiu@npac.syr.edu
*/
public class ImageDBServlet extends HttpServlet {
String imgname;
String color;
String type;
String url;
String noneLabel=" ";
/**
* doGet() method
* At Server side, collection query information from client side interface,
* access Image Database, send back HTML file containing query results
*/
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException
{
Connection con;
PrintWriter out;
res.setContentType("text/html");
out = new PrintWriter(res.getOutputStream());
// Fetch the parameters from client side
// while checking each field of the query table.
// Perform Database Access according to the value combinations provieded from User.
String cntrl = req.getParameter("control");
if(cntrl != null) {
if (cntrl.equals("Search")) {//Search button pressed
printPageHeader(out);
printPageFooter(out);
}
}
}
private void printPageHeader(PrintWriter out) {
out.println("");
out.println("");
out.println("Servlet");
out.println("");
out.println("");
out.println("This is a test.
");
}
private void printPageFooter(PrintWriter out) {
out.println("");
out.println("");
out.close();
}
}//end of class