40 lines
1.4 KiB
Java
40 lines
1.4 KiB
Java
package com.baeldung.controller;
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import com.baeldung.service.StudentService;
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import javax.servlet.RequestDispatcher;
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import javax.servlet.ServletException;
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import javax.servlet.annotation.WebServlet;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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@WebServlet(name = "StudentServlet", urlPatterns = "/student-record")
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public class StudentServlet extends HttpServlet {
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private final StudentService studentService = new StudentService();
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private void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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String studentID = request.getParameter("id");
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if (studentID != null) {
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int id = Integer.parseInt(studentID);
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studentService.getStudent(id)
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.ifPresent(s -> request.setAttribute("studentRecord", s));
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}
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RequestDispatcher dispatcher = request.getRequestDispatcher("/WEB-INF/jsp/student-record.jsp");
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dispatcher.forward(request, response);
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}
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@Override
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protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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processRequest(request, response);
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}
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@Override
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
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processRequest(request, response);
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}
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}
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