Java tutorial
/* * 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 servlets; import com.squareup.okhttp.FormEncodingBuilder; import com.squareup.okhttp.RequestBody; import conexion.Conexion; import java.io.IOException; import java.io.PrintWriter; 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 KMMG */ @WebServlet(name = "signup", urlPatterns = { "/signup" }) public class signup 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 signup</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet signup 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 { 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 login</title>"); out.println("</head>"); out.println("<body>"); String user = request.getParameter("newuser"); String pass = request.getParameter("newpass"); String nombre = request.getParameter("nombre"); String empresa = request.getParameter("newempresa"); String depto = request.getParameter("newdepto"); boolean exito = registrarUser(user, pass, nombre, empresa, depto); if (exito == true) { out.println("<script type=\"text/javascript\">alert(\"El usuario ha sido registrado\");" + "window.location.href='index.jsp'; </script> "); } else if (exito == false) { out.println("<script type=\"text/javascript\">alert(\"No se ha podido registrar el usuario\");" + "window.location.href='index.jsp'; </script> "); } out.println("</body>"); out.println("</html>"); } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> private static boolean registrarUser(String user, String pass, String nombre, String empresa, String depto) { RequestBody rb = new FormEncodingBuilder().add("nombre", nombre).add("usuario", user) .add("departamento", depto).add("empresa", empresa).add("password", pass).build(); String res = Conexion.consultar("insertarUsuario", rb); System.out.println(res); if (res.equals("inserto")) { return true; } else { return false; } } }