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 org.academia.servlet; import com.google.gson.Gson; import java.io.BufferedReader; 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; import org.academia.bean.BAlumno; import org.academia.bean.BMatricula; import org.academia.bean.BSalon; import org.academia.bean.BSalon_Tutor; import org.academia.dao.DAOAlumno; import org.academia.dao.DAOCicloAcademico; import org.academia.dao.DAOMatricula; import org.academia.dao.DAOSalon; import org.academia.dao.DAOSalon_Tutor; import org.academia.dao.DAOTipoCobro; import org.academia.dao.DAOTutor; import org.json.JSONObject; /** * * @author ABEL-LP */ @WebServlet(name = "SMatricula", urlPatterns = { "/SMatricula" }) public class SMatricula extends HttpServlet { private static final long serialVersionUID = 1L; /** * 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 */ public SMatricula() { super(); } protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { /* 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 SMatricula</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Servlet SMatricula at " + request.getContextPath() + "</h1>"); out.println("</body>"); out.println("</html*/ } finally { out.close(); } } // <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 { String json1 = new Gson().toJson(new DAOTipoCobro().listarTipoCobro()); response.setContentType("application/json"); response.setCharacterEncoding("utf-8"); response.getWriter().write(json1); } /** * 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 { StringBuffer jb = new StringBuffer(); String line = null; try { BufferedReader reader = request.getReader(); while ((line = reader.readLine()) != null) { jb.append(line); } //System.out.println(jb.toString()); String datt = String.valueOf(jb.toString()); JSONObject jsonObj = new JSONObject(datt); BAlumno oBAlumno = new BAlumno(); String value = (String) jsonObj.get("nombre"); oBAlumno.setNombre(value); value = (String) jsonObj.get("apellidoPaterno"); oBAlumno.setApellidoPaterno(value); value = (String) jsonObj.get("apellidoMaterno"); oBAlumno.setApellidoMaterno(value); value = (String) jsonObj.get("dni"); oBAlumno.setDni(value); value = (String) jsonObj.get("direccion"); oBAlumno.setDireccion(value); oBAlumno.setEstado(true); oBAlumno.setIdSalon(5); oBAlumno.setIdExamen(5); int idAlumno = new DAOAlumno().registrarAlumno(oBAlumno); BMatricula oBMatricula = new BMatricula(); value = (String) jsonObj.get("escuela"); oBMatricula.setEscuela(value); value = (String) jsonObj.get("idciclo"); oBMatricula.setIdCiclo(Integer.parseInt(value)); oBMatricula.setIdAlumno(idAlumno); oBMatricula.setIdSecretario(1); oBMatricula.setMonto(360.0); boolean flag = new DAOMatricula().registrarAlumno(oBMatricula); if (idAlumno != 0 && flag == true) { String json1 = new Gson().toJson("Alumno matriculado!"); response.setContentType("application/json"); response.setCharacterEncoding("utf-8"); response.getWriter().write(json1); } else { String json1 = new Gson().toJson("Error al matricular Alumno"); response.setContentType("application/json"); response.setCharacterEncoding("utf-8"); response.getWriter().write(json1); } } catch (Exception e) { e.printStackTrace(); } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }