/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package adminStudent;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
*
* @author Benny
*/
@WebServlet(name = "adminUpdateServlet", urlPatterns = {"/adminUpdateServlet"})
public class adminUpdateServlet extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
* methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
/* TODO output your page here. You may use following sample code. */
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet adminUpdateServlet</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet adminUpdateServlet at " + request.getContextPath() + "</h1>");
out.println("</body>");
out.println("</html>");
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String update_sno=new String(request.getParameter("update_sno").getBytes("ISO-8859-1"),"UTF-8");
String update_sname=new String(request.getParameter("update_sname").getBytes("ISO-8859-1"),"UTF-8");
String update_sage=new String(request.getParameter("update_sage").getBytes("ISO-8859-1"),"UTF-8");
String update_ssex=new String(request.getParameter("update_ssex").getBytes("ISO-8859-1"),"UTF-8");
String update_major=new String(request.getParameter("update_major").getBytes("ISO-8859-1"),"UTF-8");
String update_depart=new String(request.getParameter("update_depart").getBytes("ISO-8859-1"),"UTF-8");
if(update_sno.equals("")||update_sname.equals("")||update_sage.equals("")||update_ssex.equals("")||update_major.equals("")||update_depart.equals("")){
response.sendRedirect("http://localhost:8080/scoregl/main/admin.jsp");
}else{
Connection con=null;
Statement st=null;
if(update_sno.equals("")){
response.sendRedirect("http://localhost:8080/scoregl/main/admin.jsp");
}
else{
try{
Class.forName("com.mysql.jdbc.Driver");
String url="jdbc:mysql://localhost:3306/studentscore?useUnicode=true&characterEncoding=UTF-8";
con=DriverManager.getConnection(url,"root","");
st=con.createStatement();
String sql="update student set sno='"+update_sno+"',sname='"+update_sname+"',ssex='"+update_ssex+"',sage='"+update_sage+"',major='"+update_major+"',depart='"+update_depart+"' where sno='"+update_sno+"'";
st.executeUpdate(sql);
response.sendRedirect("http://localhost:8080/scoregl/main/admin.jsp");
}
catch (Exception e){
e.printStackTrace();
}
finally{
try {
st.close();
} catch (SQLException ex) {
Logger.getLogger(adminUpdateServlet.class.getName()).log(Level.SEVERE, null, ex);
}
try {
con.close();
} catch (SQLException ex) {
Logger.getLogger(adminUpdateServlet.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
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