From 241e9431608580f7bcc79499a15d765a4fab3f0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C4=90inh=20Qu=E1=BB=91c=20Ch=C6=B0=C6=A1ng?=
 <quocchuong2609@gmail.com>
Date: Fri, 1 Mar 2024 07:53:47 +0700
Subject: [PATCH] fix err 404 and set constrain for list product

---
 .../management/product/ProductServlet.java    |  10 +-
 .../view/jsp/management/product/product.jsp   | 109 ++++++++++--------
 2 files changed, 68 insertions(+), 51 deletions(-)

diff --git a/src/main/java/io/hardingadonis/saledock/controller/management/product/ProductServlet.java b/src/main/java/io/hardingadonis/saledock/controller/management/product/ProductServlet.java
index c678656..9095ddf 100644
--- a/src/main/java/io/hardingadonis/saledock/controller/management/product/ProductServlet.java
+++ b/src/main/java/io/hardingadonis/saledock/controller/management/product/ProductServlet.java
@@ -23,13 +23,21 @@ protected void doGet(HttpServletRequest request, HttpServletResponse response)
         int limit = 10;
 
         if (request.getParameter("page") != null) {
-            page = Integer.parseInt(request.getParameter("page"));
+            try {
+                page = Integer.parseInt(request.getParameter("page"));
+
+            } catch (Exception e) {
+                response.sendRedirect("./error-404");
+                return;
+            }
         }
 
         List<Product> list = Singleton.productDAO.pagination((page - 1) * limit, limit);
         Integer count = Singleton.productDAO.count();
         int totalPage = Singleton.productDAO.totalPages(limit);
 
+        list.isEmpty();
+
         request.setAttribute("productList", list);
         request.setAttribute("currentPage", page);
         request.setAttribute("totalPage", totalPage);
diff --git a/src/main/webapp/view/jsp/management/product/product.jsp b/src/main/webapp/view/jsp/management/product/product.jsp
index 0f1cb0f..1cbefb4 100644
--- a/src/main/webapp/view/jsp/management/product/product.jsp
+++ b/src/main/webapp/view/jsp/management/product/product.jsp
@@ -28,62 +28,71 @@
                                 <p class="text-primary m-0 fw-bold">Quản lý sản phẩm</p>
                                 <a href="<%=request.getContextPath()%>/add-product" class="btn btn-primary btn-sm">Thêm sản phẩm</a>
                             </div>
-                            <div class="card-body">
-                                <div class="table-responsive table mt-2" id="dataTable" role="grid" aria-describedby="dataTable_info">
-                                    <table class="table my-0" id="dataTable">
-                                        <thead>
-                                            <tr>
-                                                <th>Mã sản phẩm</th>
-                                                <th>Tên sản phẩm</th>
-                                                <th>Phân loại</th>
-                                                <th>Thao tác</th>
-                                            </tr>
-                                        </thead>
-                                        <c:forEach items="${requestScope.productList}" var="product">
-                                            <tbody>
+                            <c:if test="${!requestScope.productList.isEmpty()}">
+                                <div class="card-body">
+                                    <div class="table-responsive table mt-2" id="dataTable" role="grid" aria-describedby="dataTable_info">
+                                        <table class="table my-0" id="dataTable">
+                                            <thead>
                                                 <tr>
-                                                    <td>${product.code}</td>
-                                                    <td>${product.name}</td>
-                                                    <td>${product.category.name}</td>
-                                                    <td class="text-start">
-                                                        <a class="btn btn-primary btn-sm" role="button" data-bs-toggle="tooltip" data-bss-tooltip="" style="margin: 2px;" title="Thông tin chi tiết" href="<%=request.getContextPath()%>/product-detail?id=${product.ID}">
-                                                            <i class="la la-info-circle"></i>
-                                                        </a>
-                                                        <a class="btn btn-warning btn-sm" data-bs-toggle="tooltip" data-bss-tooltip="" style="margin: 2px;" title="Chỉnh sửa" href="<%=request.getContextPath()%>/update-product?id=${product.ID}" >
-                                                            <i class="la la-edit"></i>
-                                                        </a>                          
-                                                    </td>
+                                                    <th>Mã sản phẩm</th>
+                                                    <th>Tên sản phẩm</th>
+                                                    <th>Phân loại</th>
+                                                    <th>Thao tác</th>
                                                 </tr>
-                                            </tbody>
-                                        </c:forEach>
-                                    </table>
-                                </div>
-                                <div class="row">
-                                    <div class="col-md-6 align-self-center">
-                                        <p id="dataTable_info" class="dataTables_info" role="status" aria-live="polite">
-                                            Hiển thị ${requestScope.currentPage * requestScope.limit < requestScope.numOfPro ? requestScope.currentPage * requestScope.limit : requestScope.numOfPro}
-                                            trên ${requestScope.numOfPro} sản phẩm
-                                        </p>
+                                            </thead>
+                                            <c:forEach items="${requestScope.productList}" var="product">
+                                                <tbody>
+                                                    <tr>
+                                                        <td>${product.code}</td>
+                                                        <td>${product.name}</td>
+                                                        <td>${product.category.name}</td>
+                                                        <td class="text-start">
+                                                            <a class="btn btn-primary btn-sm" role="button" data-bs-toggle="tooltip" data-bss-tooltip="" style="margin: 2px;" title="Thông tin chi tiết" href="<%=request.getContextPath()%>/product-detail?id=${product.ID}">
+                                                                <i class="la la-info-circle"></i>
+                                                            </a>
+                                                            <a class="btn btn-warning btn-sm" data-bs-toggle="tooltip" data-bss-tooltip="" style="margin: 2px;" title="Chỉnh sửa" href="<%=request.getContextPath()%>/update-product?id=${product.ID}" >
+                                                                <i class="la la-edit"></i>
+                                                            </a>                          
+                                                        </td>
+                                                    </tr>
+                                                </tbody>
+                                            </c:forEach>
+                                        </table>
                                     </div>
-                                    <div class="col-md-6">
-                                        <nav class="d-lg-flex justify-content-lg-end dataTables_paginate paging_simple_numbers">
-                                            <ul class="pagination">
-                                                <li class="page-item ${requestScope.currentPage == 1 ? 'disabled' : ''}">
-                                                    <a class="page-link" aria-label="Previous" href="<%=request.getContextPath()%>/product?page=${requestScope.currentPage - 1}"><span aria-hidden="true">«</span></a>
-                                                </li>
-                                                <c:forEach var="i" begin="1" end="${requestScope.totalPage}">
-                                                    <li class="page-item ${i == requestScope.currentPage ? 'active' : ''}">
-                                                        <a class="page-link" href="<%=request.getContextPath()%>/product?page=${i}">${i}</a>
+                                    <div class="row">
+                                        <div class="col-md-6 align-self-center">
+                                            <p id="dataTable_info" class="dataTables_info" role="status" aria-live="polite">
+                                                Hiển thị ${requestScope.currentPage * requestScope.limit < requestScope.numOfPro ? requestScope.currentPage * requestScope.limit : requestScope.numOfPro}
+                                                trên ${requestScope.numOfPro} sản phẩm
+                                            </p>
+                                        </div>
+                                        <div class="col-md-6">
+                                            <nav class="d-lg-flex justify-content-lg-end dataTables_paginate paging_simple_numbers">
+                                                <ul class="pagination">
+                                                    <li class="page-item ${requestScope.currentPage == 1 ? 'disabled' : ''}">
+                                                        <a class="page-link" aria-label="Previous" href="<%=request.getContextPath()%>/product?page=${requestScope.currentPage - 1}"><span aria-hidden="true">«</span></a>
+                                                    </li>
+                                                    <c:forEach var="i" begin="1" end="${requestScope.totalPage}">
+                                                        <li class="page-item ${i == requestScope.currentPage ? 'active' : ''}">
+                                                            <a class="page-link" href="<%=request.getContextPath()%>/product?page=${i}">${i}</a>
+                                                        </li>
+                                                    </c:forEach>
+                                                    <li class="page-item ${requestScope.currentPage == requestScope.totalPage ? 'disabled' : ''}">
+                                                        <a class="page-link" aria-label="Next" href="<%=request.getContextPath()%>/product?page=${requestScope.currentPage + 1}"><span aria-hidden="true">»</span></a>
                                                     </li>
-                                                </c:forEach>
-                                                <li class="page-item ${requestScope.currentPage == requestScope.totalPage ? 'disabled' : ''}">
-                                                    <a class="page-link" aria-label="Next" href="ProductServlet?page=${requestScope.currentPage + 1}"><span aria-hidden="true">»</span></a>
-                                                </li>
-                                            </ul>
-                                        </nav>
+                                                </ul>
+                                            </nav>
+                                        </div>
                                     </div>
                                 </div>
-                            </div>
+                            </c:if>
+                            <c:if test="${requestScope.productList.isEmpty()}">
+                                <div class="card-body">
+                                    <div class="row">
+                                        <h3 style="text-align: center;">Không có sản phẩm nào để quản lí.</h3>
+                                    </div>
+                                </div>
+                            </c:if>
                         </div>
                     </div>
                 </div>