Belajar Dasar JSP Membuat CRUD - Part 02 - sopian aji

Terbaru

Minggu, 29 Maret 2020

Belajar Dasar JSP Membuat CRUD - Part 02


kita lanjutkan materi pada Belajar Dasar JSP Membuat CRUD - Part 01 kali ini kita selesaikan Read, Update dan Delete

1. disan form read member_read.jsp
<%-- 
    Document   : member_read
    Created on : Mar 25, 2020, 1:15:11 PM
    Author     : Sopian Aji
--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page import="control.koneksi" %>
<%@page import="java.sql.*" %>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <h3>Data Member</h3>
        <a href="member_create.jsp"> <button>Tambah</button> </a>
        <table border="1" width="70%">
            <tr>
                <th>No</th>
                <th>Kode</th>
                <th>Nama</th>
                <th>Aksi</th>
            </tr>
            <%
                String kd_member=null;
                String nama_member=null;
                int no=1;
                ResultSet rs=null;
                koneksi kon=new koneksi();
                rs=kon.stmt.executeQuery("SELECT*FROM member ORDER BY kd_member desc");
                while(rs.next())
                {
                    kd_member=rs.getString("kd_member");
                    nama_member=rs.getString(2);
            %>
            <tr>
                <td><% out.println(no++); %></td>
                <td><% out.println(kd_member); %></td>
                <td><% out.println(nama_member); %></td>
                <td>
                    <a href="member_edit.jsp?kd_member=<% out.print(kd_member); %>">Edit</a>
                    | <a href="SrvMember?aksi=Delete&kd_member=<% out.print(kd_member); %>">Hapus</a>
                </td>
            </tr>
            <% } %>
        </table>
        <% kon.close(); %>
    </body>
</html>
2. disan form read edit_read.jsp
<%-- 
    Document   : member_create
    Created on : Mar 25, 2020, 11:59:13 AM
    Author     : Sopian Aji
--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@page import="control.koneksi" %>
<%@page import="java.sql.*" %>
<%
    String kd_member=request.getParameter("kd_member");
    String nama_member=null;
    ResultSet rs=null;
    koneksi kon=new koneksi();
    rs=kon.stmt.executeQuery("SELECT*FROM member WHERE kd_member='" +kd_member+ "'");
    if(rs.next())
    {
    kd_member=rs.getString("kd_member");
    nama_member=rs.getString(2);
    }
%>
<!DOCTYPE html>
<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>JSP Page</title>
    </head>
    <body>
        <form method="POST" action="SrvMember">
            <h3>Ubah Member</h3>
            Kode Member <input type="text" name="kd_member" value="<%=kd_member %>" disabled="">
            <input type="text" name="kd_member" value="<%=kd_member %>" hidden="">
            <br>
            Nama Member <input type="text" name="nama_member" value="<%=nama_member %>"><br>
            <br>
            <button type="submit" name="aksi" value="Update">Perbaharui</button>
            <button type="reset" onclick="history.go(-1)">Batal</button>
        </form>
    </body>
</html>

3. update kembali source code pada Servlet SrvMember.java
/*
 * 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 control;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import model.member;

/**
 *
 * @author Sopian Aji
 */
public class SrvMember 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
     * @throws java.lang.ClassNotFoundException
     * @throws java.sql.SQLException
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException, ClassNotFoundException, SQLException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
           member mbr=new member();
           koneksi kon=new koneksi();
           PreparedStatement pstmt=null;
           int result=0;
           String aksi=request.getParameter("aksi");
           if(aksi!=null){
               mbr.setKd_member(request.getParameter("kd_member"));
               mbr.setNama_member(request.getParameter("nama_member"));
               switch(aksi){
                   case "Simpan":
                       pstmt=kon.conn.prepareStatement("INSERT INTO member values('"
                               +mbr.getKd_member()+"','"
                               +mbr.getNama_member()+"')");
                       result=pstmt.executeUpdate();
                       if(result > 0) {
                            out.println("<script>" + "alert('Data berhasil tersimpan');" 
                                    + "document.location='member_read.jsp';"
                                    + "</script>");
                        }
                       break;
                       
                       case"Delete":
                         pstmt=kon.conn.prepareStatement("DELETE FROM member WHERE "
                                 + "kd_member='"+mbr.getKd_member()+"'");
                         result=pstmt.executeUpdate();
                         if(result>0){
                            out.println("<script>" + "alert('Data telah dihapus');"
                                    + "document.location='member_read.jsp';"
                                    + "</script>");
                         }
                         break;
                       
                       case"Update":
                        pstmt = kon.conn.prepareStatement("UPDATE member SET "
                                + "nama_member='" + mbr.getNama_member()
                                + "' where kd_member='" + mbr.getKd_member()
                                + "'");
                        result = pstmt.executeUpdate();
                        if(result > 0) {
                            out.println("<script>" + "alert('Data telah diperbaharui');" 
                                    + "document.location='member_read.jsp';"
                                    + "</script>");
                        }
                       default:
                       break; 
                         
               }
           }
        }
    }

    // <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 {
        try {
            processRequest(request, response);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(SrvMember.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SQLException ex) {
            Logger.getLogger(SrvMember.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * 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 {
        try {
            processRequest(request, response);
        } catch (ClassNotFoundException ex) {
            Logger.getLogger(SrvMember.class.getName()).log(Level.SEVERE, null, ex);
        } catch (SQLException ex) {
            Logger.getLogger(SrvMember.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>

}

Tidak ada komentar:

Posting Komentar