当前位置： 首页 > article >正文

php消息路由

article 2025/2/23 7:04:34

1.单文件模式

web刚开始发展的时候，没有专门的前端工程师， web开发人员经常是服务端，客户端开发一把梭。那时候，不管是业务逻辑，还是界面交互，都喜欢把某个业务的前后端代码放在同一个文件。例如，jsp,asp,php均是这种模式。

例如，下面的订单管理页面，主要负责订单的增删查改

<?php
// 连接数据库
try {
	$pdo = new PDO('mysql:host=localhost;dbname=php', 'root', '123456');
	$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
	die("数据库连接失败：" . $e->getMessage());
}

// 获取所有订单
function getAllOrders()
{
	global $pdo;
	$sql = "SELECT * FROM orders";
	$stmt = $pdo->query($sql);
	return $stmt->fetchAll(PDO::FETCH_ASSOC);
}

// 添加订单
function addOrder($customerName, $productName, $quantity, $totalPrice)
{
	global $pdo;
	$sql = "INSERT INTO orders (customer_name, product_name, quantity, total_price) VALUES (:customer_name, :product_name, :quantity, :total_price)";
	$stmt = $pdo->prepare($sql);
	$stmt->bindParam(':customer_name', $customerName);
	$stmt->bindParam(':product_name', $productName);
	$stmt->bindParam(':quantity', $quantity);
	$stmt->bindParam(':total_price', $totalPrice);
	$stmt->execute();
}

// 更新订单
function updateOrder($id, $customerName, $productName, $quantity, $totalPrice)
{
	global $pdo;
	$sql = "UPDATE orders SET customer_name = :customer_name, product_name = :product_name, quantity = :quantity, total_price = :total_price WHERE id = :id";
	$stmt = $pdo->prepare($sql);
	$stmt->bindParam(':id', $id);
	$stmt->bindParam(':customer_name', $customerName);
	$stmt->bindParam(':product_name', $productName);
	$stmt->bindParam(':quantity', $quantity);
	$stmt->bindParam(':total_price', $totalPrice);
	$stmt->execute();
}

// 删除订单
function deleteOrder($id)
{
	global $pdo;
	$sql = "DELETE FROM orders WHERE id = :id";
	$stmt = $pdo->prepare($sql);
	$stmt->bindParam(':id', $id);
	$stmt->execute();
}

// 根据请求类型进行处理
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
	if (isset($_POST['action']) && $_POST['action'] === 'add') {
		addOrder($_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	} elseif (isset($_POST['action']) && $_POST['action'] === 'update') {
		updateOrder($_POST['id'], $_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	} elseif (isset($_POST['action']) && $_POST['action'] === 'delete') {
		deleteOrder($_POST['id']);
	}
	header('Location: index.php');
	exit;
}

$orders = getAllOrders();
?>
<!DOCTYPE html>
<html>

<head>
	<title>订单管理系统</title>
	<style>
		body {
			font-family: Arial, sans-serif;
		}

		.container {
			max-width: 800px;
			margin: 0 auto;
			padding: 20px;
		}

		table {
			width: 100%;
			border-collapse: collapse;
		}

		th,
		td {
			padding: 8px;
			border: 1px solid #ddd;
		}

		th {
			background-color: #f2f2f2;
		}

		.btn {
			padding: 6px 12px;
			border: none;
			border-radius: 4px;
			cursor: pointer;
		}

		.btn-primary {
			background-color: #007bff;
			color: #fff;
		}

		.btn-danger {
			background-color: #dc3545;
			color: #fff;
		}

		.modal {
			display: none;
			position: fixed;
			z-index: 1000;
			top: 0;
			left: 0;
			width: 100%;
			height: 100%;
			overflow: auto;
			background-color: rgba(0, 0, 0, 0.4);
		}

		.modal-content {
			background-color: #fff;
			margin: 10% auto;
			padding: 20px;
			border: 1px solid #888;
			width: 80%;
		}

		.modal-header,
		.modal-footer {
			padding: 10px;
		}

		.modal-title {
			margin: 0;
		}

		.form-group {
			margin-bottom: 15px;
		}

		label {
			display: block;
			margin-bottom: 5px;
		}

		input[type="text"],
		input[type="number"] {
			width: 100%;
			padding: 8px;
			border: 1px solid #ddd;
			border-radius: 4px;
		}
	</style>
</head>

<body>
	<div class="container">
		<h1>订单管理系统</h1>
		<table>
			<thead>
				<tr>
					<th>订单编号</th>
					<th>客户名称</th>
					<th>产品名称</th>
					<th>数量</th>
					<th>总价</th>
					<th>操作</th>
				</tr>
			</thead>
			<tbody>
				<?php foreach ($orders as $order): ?>
					<tr>
						<td><?php echo $order['id']; ?></td>
						<td><?php echo $order['customer_name']; ?></td>
						<td><?php echo $order['product_name']; ?></td>
						<td><?php echo $order['quantity']; ?></td>
						<td><?php echo $order['total_price']; ?></td>
						<td>
							<button class="btn btn-primary btn-sm edit-btn" data-id="<?php echo $order['id']; ?>" data-customer_name="<?php echo $order['customer_name']; ?>" data-product_name="<?php echo $order['product_name']; ?>" data-quantity="<?php echo $order['quantity']; ?>" data-total_price="<?php echo $order['total_price']; ?>">编辑</button>
							<button class="btn btn-danger btn-sm delete-btn" data-id="<?php echo $order['id']; ?>">删除</button>
						</td>
					</tr>
				<?php endforeach; ?>
			</tbody>
		</table>
		<button class="btn btn-success" onclick="showAddModal()">添加订单</button>
	</div>

	<!-- 添加订单模态框 -->
	<div id="addModal" class="modal">
		<div class="modal-content">
			<div class="modal-header">
				<h5 id="addModalLabel">添加订单</h5>
				<button type="button" class="close" onclick="hideModal('addModal')">×</button>
			</div>
			<div class="modal-body">
				<form id="addForm">
					<div class="form-group">
						<label for="customer_name">客户名称</label>
						<input type="text" class="form-control" id="customer_name" required>
					</div>
					<div class="form-group">
						<label for="product_name">产品名称</label>
						<input type="text" class="form-control" id="product_name" required>
					</div>
					<div class="form-group">
						<label for="quantity">数量</label>
						<input type="number" class="form-control" id="quantity" required>
					</div>
					<div class="form-group">
						<label for="total_price">总价</label>
						<input type="number" class="form-control" id="total_price" required>
					</div>
				</form>
			</div>
			<div class="modal-footer">
				<button type="button" class="btn btn-secondary" onclick="hideModal('addModal')">关闭</button>
				<button type="button" class="btn btn-primary" onclick="addOrder()">添加</button>
			</div>
		</div>
	</div>

	<!-- 编辑订单模态框 -->
	<div id="editModal" class="modal">
		<div class="modal-content">
			<div class="modal-header">
				<h5 id="editModalLabel">编辑订单</h5>
				<button type="button" class="close" onclick="hideModal('editModal')">×</button>
			</div>
			<div class="modal-body">
				<form id="editForm">
					<input type="hidden" id="edit_id">
					<div class="form-group">
						<label for="edit_customer_name">客户名称</label>
						<input type="text" class="form-control" id="edit_customer_name" required>
					</div>
					<div class="form-group">
						<label for="edit_product_name">产品名称</label>
						<input type="text" class="form-control" id="edit_product_name" required>
					</div>
					<div class="form-group">
						<label for="edit_quantity">数量</label>
						<input type="number" class="form-control" id="edit_quantity" required>
					</div>
					<div class="form-group">
						<label for="edit_total_price">总价</label>
						<input type="number" class="form-control" id="edit_total_price" required>
					</div>
				</form>
			</div>
			<div class="modal-footer">
				<button type="button" class="btn btn-secondary" onclick="hideModal('editModal')">关闭</button>
				<button type="button" class="btn btn-primary" onclick="updateOrder()">保存</button>
			</div>
		</div>
	</div>

	<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
	<script>
		function showAddModal() {
			document.getElementById('addModal').style.display = 'block';
		}

		function hideModal(modalId) {
			document.getElementById(modalId).style.display = 'none';
		}

		// 添加订单
		function addOrder() {
			const customerName = document.getElementById('customer_name').value;
			const productName = document.getElementById('product_name').value;
			const quantity = document.getElementById('quantity').value;
			const totalPrice = document.getElementById('total_price').value;
			$.ajax({
				type: 'POST',
				url: 'index.php',
				data: {
					action: 'add',
					customer_name: customerName,
					product_name: productName,
					quantity: quantity,
					total_price: totalPrice
				},
				success: function() {
					hideModal('addModal');
					location.reload();
				}
			});
		}

		// 编辑按钮点击事件
		document.addEventListener('click', function(event) {
			if (event.target.classList.contains('edit-btn')) {
				const id = event.target.dataset.id;
				const customerName = event.target.dataset.customer_name;
				const productName = event.target.dataset.product_name;
				const quantity = event.target.dataset.quantity;
				const totalPrice = event.target.dataset.total_price;
				document.getElementById('edit_id').value = id;
				document.getElementById('edit_customer_name').value = customerName;
				document.getElementById('edit_product_name').value = productName;
				document.getElementById('edit_quantity').value = quantity;
				document.getElementById('edit_total_price').value = totalPrice;
				document.getElementById('editModal').style.display = 'block';
			}
		});

		// 保存编辑
		function updateOrder() {
			const id = document.getElementById('edit_id').value;
			const customerName = document.getElementById('edit_customer_name').value;
			const productName = document.getElementById('edit_product_name').value;
			const quantity = document.getElementById('edit_quantity').value;
			const totalPrice = document.getElementById('edit_total_price').value;
			$.ajax({
				type: 'POST',
				url: 'index.php',
				data: {
					action: 'update',
					id: id,
					customer_name: customerName,
					product_name: productName,
					quantity: quantity,
					total_price: totalPrice
				},
				success: function() {
					hideModal('editModal');
					location.reload();
				}
			});
		}

		// 删除按钮点击事件
		document.addEventListener('click', function(event) {
			if (event.target.classList.contains('delete-btn')) {
				const id = event.target.dataset.id;
				if (confirm('确定要删除该订单吗？')) {
					$.ajax({
						type: 'POST',
						url: 'index.php',
						data: {
							action: 'delete',
							id: id
						},
						success: function() {
							location.reload();
						}
					});
				}
			}
		});
	</script>
</body>

</html>

这种模式，虽然界面写起来可能不是很漂亮（毕竟术业有专攻），但开发效率还是非常高的。因为服务端客户端都是同一个开发，接口联调如丝般柔顺，减少了沟通的成本。

2.前后端分离模式

伴随javascript的强势发展，现在的web工程基本采用前后端分离的模式，服务端只负责数据的处理，由客户端专门做交互界面。

将下面的代码分成两个文件

2.1.前端界面

<!DOCTYPE html>
<html>
  <head>
    <title>订单管理系统</title>
    <meta charset="UTF-8" />
    <style>
      body {
        font-family: Arial, sans-serif;
      }

      .container {
        max-width: 800px;
        margin: 0 auto;
        padding: 20px;
      }

      table {
        width: 100%;
        border-collapse: collapse;
      }

      th,
      td {
        padding: 8px;
        border: 1px solid #ddd;
      }

      th {
        background-color: #f2f2f2;
      }

      .btn {
        padding: 6px 12px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
      }

      .btn-primary {
        background-color: #007bff;
        color: #fff;
      }

      .btn-danger {
        background-color: #dc3545;
        color: #fff;
      }

      .modal {
        display: none;
        position: fixed;
        z-index: 1000;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        overflow: auto;
        background-color: rgba(0, 0, 0, 0.4);
      }

      .modal-content {
        background-color: #fff;
        margin: 10% auto;
        padding: 20px;
        border: 1px solid #888;
        width: 80%;
      }

      .modal-header,
      .modal-footer {
        padding: 10px;
      }

      .modal-title {
        margin: 0;
      }

      .form-group {
        margin-bottom: 15px;
      }

      label {
        display: block;
        margin-bottom: 5px;
      }

      input[type="text"],
      input[type="number"] {
        width: 100%;
        padding: 8px;
        border: 1px solid #ddd;
        border-radius: 4px;
      }
    </style>
  </head>

  <body>
    <div class="container">
      <h1>订单管理系统</h1>
      <table>
        <thead>
          <tr>
            <th>订单编号</th>
            <th>客户名称</th>
            <th>产品名称</th>
            <th>数量</th>
            <th>总价</th>
            <th>操作</th>
          </tr>
        </thead>
        <tbody id="orderTableBody"></tbody>
      </table>
      <button class="btn btn-success" onclick="showAddModal()">添加订单</button>
    </div>

    <!-- 添加订单模态框 -->
    <div id="addModal" class="modal">
      <div class="modal-content">
        <div class="modal-header">
          <h5 id="addModalLabel">添加订单</h5>
          <button type="button" class="close" onclick="hideModal('addModal')">
            ×
          </button>
        </div>
        <div class="modal-body">
          <form id="addForm">
            <div class="form-group">
              <label for="customer_name">客户名称</label>
              <input
                type="text"
                class="form-control"
                id="customer_name"
                required
              />
            </div>
            <div class="form-group">
              <label for="product_name">产品名称</label>
              <input
                type="text"
                class="form-control"
                id="product_name"
                required
              />
            </div>
            <div class="form-group">
              <label for="quantity">数量</label>
              <input
                type="number"
                class="form-control"
                id="quantity"
                required
              />
            </div>
            <div class="form-group">
              <label for="total_price">总价</label>
              <input
                type="number"
                class="form-control"
                id="total_price"
                required
              />
            </div>
          </form>
        </div>
        <div class="modal-footer">
          <button
            type="button"
            class="btn btn-secondary"
            onclick="hideModal('addModal')"
          >
            关闭
          </button>
          <button type="button" class="btn btn-primary" onclick="addOrder()">
            添加
          </button>
        </div>
      </div>
    </div>

    <!-- 编辑订单模态框 -->
    <div id="editModal" class="modal">
      <div class="modal-content">
        <div class="modal-header">
          <h5 id="editModalLabel">编辑订单</h5>
          <button type="button" class="close" onclick="hideModal('editModal')">
            ×
          </button>
        </div>
        <div class="modal-body">
          <form id="editForm">
            <input type="hidden" id="edit_id" />
            <div class="form-group">
              <label for="edit_customer_name">客户名称</label>
              <input
                type="text"
                class="form-control"
                id="edit_customer_name"
                required
              />
            </div>
            <div class="form-group">
              <label for="edit_product_name">产品名称</label>
              <input
                type="text"
                class="form-control"
                id="edit_product_name"
                required
              />
            </div>
            <div class="form-group">
              <label for="edit_quantity">数量</label>
              <input
                type="number"
                class="form-control"
                id="edit_quantity"
                required
              />
            </div>
            <div class="form-group">
              <label for="edit_total_price">总价</label>
              <input
                type="number"
                class="form-control"
                id="edit_total_price"
                required
              />
            </div>
          </form>
        </div>
        <div class="modal-footer">
          <button
            type="button"
            class="btn btn-secondary"
            onclick="hideModal('editModal')"
          >
            关闭
          </button>
          <button type="button" class="btn btn-primary" onclick="updateOrder()">
            保存
          </button>
        </div>
      </div>
    </div>

    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script>
      // 加载订单数据
      function loadOrders() {
        $.ajax({
          type: "GET",
          url: "http://localhost/demo/order_handler.php",
          success: function (data) {
            $("#orderTableBody").html("");
            JSON.parse(data).forEach(function (order) {
              $("#orderTableBody").append(
                "<tr><td>" +
                  order.id +
                  "</td><td>" +
                  order.customer_name +
                  "</td><td>" +
                  order.product_name +
                  "</td><td>" +
                  order.quantity +
                  "</td><td>" +
                  order.total_price +
                  '</td><td><button class="btn btn-primary btn-sm edit-btn" data-id="' +
                  order.id +
                  '" data-customer_name="' +
                  order.customer_name +
                  '" data-product_name="' +
                  order.product_name +
                  '" data-quantity="' +
                  order.quantity +
                  '" data-total_price="' +
                  order.total_price +
                  '">编辑</button><button class="btn btn-danger btn-sm delete-btn" data-id="' +
                  order.id +
                  '">删除</button></td></tr>'
              );
            });
          },
        });
      }

      loadOrders();

      function showAddModal() {
        document.getElementById("addModal").style.display = "block";
      }

      function hideModal(modalId) {
        document.getElementById(modalId).style.display = "none";
      }

      // 添加订单
      function addOrder() {
        const customerName = document.getElementById("customer_name").value;
        const productName = document.getElementById("product_name").value;
        const quantity = document.getElementById("quantity").value;
        const totalPrice = document.getElementById("total_price").value;
        $.ajax({
          type: "POST",
          url: "http://localhost/demo/order_handler.php",
          data: {
            action: "add",
            customer_name: customerName,
            product_name: productName,
            quantity: quantity,
            total_price: totalPrice,
          },
          success: function () {
            hideModal("addModal");
            loadOrders();
          },
        });
      }

      // 编辑按钮点击事件
      document.addEventListener("click", function (event) {
        if (event.target.classList.contains("edit-btn")) {
          const id = event.target.dataset.id;
          const customerName = event.target.dataset.customer_name;
          const productName = event.target.dataset.product_name;
          const quantity = event.target.dataset.quantity;
          const totalPrice = event.target.dataset.total_price;
          document.getElementById("edit_id").value = id;
          document.getElementById("edit_customer_name").value = customerName;
          document.getElementById("edit_product_name").value = productName;
          document.getElementById("edit_quantity").value = quantity;
          document.getElementById("edit_total_price").value = totalPrice;
          document.getElementById("editModal").style.display = "block";
        }
      });

      // 保存编辑
      function updateOrder() {
        const id = document.getElementById("edit_id").value;
        const customerName =
          document.getElementById("edit_customer_name").value;
        const product_name = document.getElementById("edit_product_name").value;
        const quantity = document.getElementById("edit_quantity").value;
        const totalPrice = document.getElementById("edit_total_price").value;
        $.ajax({
          type: "POST",
          url: "/orders/update",
          data: {
            action: "update",
            id: id,
            customer_name: customerName,
            product_name: product_name,
            quantity: quantity,
            total_price: totalPrice,
          },
          success: function () {
            hideModal("editModal");
            loadOrders();
          },
        });
      }

      // 删除按钮点击事件
      document.addEventListener("click", function (event) {
        if (event.target.classList.contains("delete-btn")) {
          const id = event.target.dataset.id;
          if (confirm("确定要删除该订单吗？")) {
            $.ajax({
              type: "POST",
              url: "http://localhost/demo/order_handler.php",
              data: {
                action: "delete",
                id: id,
              },
              success: function () {
                loadOrders();
              },
            });
          }
        }
      });
    </script>
  </body>
</html>

可以看到，CRUD的路径都是http://localhost/demo/order_handler.php这个php文件，通过action定义子类型。

2.2.后端代码

<?php
require_once 'router.php';
// 连接数据库
try {
	$pdo = new PDO('mysql:host=localhost;dbname=php', 'root', '123456');
	$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
	die("数据库连接失败：" . $e->getMessage());
}

// 获取所有订单
function getAllOrders()
{
	global $pdo;
	$sql = "SELECT * FROM orders";
	$stmt = $pdo->query($sql);
	return $stmt->fetchAll(PDO::FETCH_ASSOC);
}

// 添加订单
function addOrder($customerName, $productName, $quantity, $totalPrice)
{
	global $pdo;
	$sql = "INSERT INTO orders (customer_name, product_name, quantity, total_price) VALUES (:customer_name, :product_name, :quantity, :total_price)";
	$stmt = $pdo->prepare($sql);
	$stmt->bindParam(':customer_name', $customerName);
	$stmt->bindParam(':product_name', $productName);
	$stmt->bindParam(':quantity', $quantity);
	$stmt->bindParam(':total_price', $totalPrice);
	$stmt->execute();
}

// 更新订单
function updateOrder($id, $customerName, $productName, $quantity, $totalPrice)
{
	global $pdo;
	$sql = "UPDATE orders SET customer_name = :customer_name, product_name = :product_name, quantity = :quantity, total_price = :total_price WHERE id = :id";
	$stmt = $pdo->prepare($sql);
	$stmt->bindParam(':id', $id);
	$stmt->bindParam(':customer_name', $customerName);
	$stmt->bindParam(':product_name', $productName);
	$stmt->bindParam(':quantity', $quantity);
	$stmt->bindParam(':total_price', $totalPrice);
	$stmt->execute();
}

// 删除订单
function deleteOrder($id)
{
	global $pdo;
	$sql = "DELETE FROM orders WHERE id = :id";
	$stmt = $pdo->prepare($sql);
	$stmt->bindParam(':id', $id);
	$stmt->execute();
}

// 根据请求类型进行处理
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
	$orders = getAllOrders();
	echo json_encode($orders);
} else if ($_SERVER['REQUEST_METHOD'] === 'POST') {
	if (isset($_POST['action']) && $_POST['action'] === 'add') {
		addOrder($_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	} elseif (isset($_POST['action']) && $_POST['action'] === 'update') {
		updateOrder($_POST['id'], $_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	} elseif (isset($_POST['action']) && $_POST['action'] === 'delete') {
		deleteOrder($_POST['id']);
	}
	header('Location: index.php');
	exit;
}

这里有一段代码，根据不同的请求方法调用相应的函数，就是非常简单（丑陋）的消息路由逻辑了。

// 根据请求类型进行处理
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
	$orders = getAllOrders();
	echo json_encode($orders);
} else if ($_SERVER['REQUEST_METHOD'] === 'POST') {
	if (isset($_POST['action']) && $_POST['action'] === 'add') {
		addOrder($_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	} elseif (isset($_POST['action']) && $_POST['action'] === 'update') {
		updateOrder($_POST['id'], $_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	} elseif (isset($_POST['action']) && $_POST['action'] === 'delete') {
		deleteOrder($_POST['id']);
	}
	header('Location: index.php');
	exit;
}

3.实现简单路由

3.1.springmvc基于注解的路由

了解过springmvc（或者其他编程语言的mvc框架）的同学，可能对这种代码嗤之以鼻，确实太丑了。springmvc通过类注解，方法注解，定义消息路由，非常漂亮！

@RestController
@RequestMapping("/player")
public class PlayerController {

    @GetMapping(value = "/getProgress")
    public Response getProgress(@RequestHeader Map<String, String> headers, @Valid ReqQueryProgress req) {
        return Response.success(userGameData.getProgress());
    }

    @PostMapping(value = "/saveProgress")
    public Response saveProgress(@RequestHeader Map<String, String> headers, @Valid @RequestBody ReqSaveProgress req) {
        return Response.success(userGameData.getProgress());
    }
}

由于php不支持注解，无法做到springmvc的模式，即使使用了消息路由，也只能手动注册url与对应的执行函数。

3.2.路由函数(router.php)

<?php
// 定义路由和相关函数等内容

$routes = [];
function route($method, $path, $callback)
{
    global $routes;
    $routes[$method][$path] = $callback;
}

function dispatch()
{
    global $routes;
    $method = $_SERVER['REQUEST_METHOD'];
    $path = $_SERVER['REQUEST_URI'];

    // 本项目放在htdocs目录下的子目录demo，所以将url前缀进行替换
    $path = str_replace("/demo", "", $path);

    if (isset($routes[$method][$path])) {
        $callback = $routes[$method][$path];
        return $callback();
    } else {
        // 404处理
        header('HTTP/1.0 404 Not Found');
        echo '404 - Page not found';
    }
}

3.3.注册业务路由

order_handler.php那段丑陋的代码，现在可以删掉了，改为下面的代码

// 获取订单的路由
route('GET', '/orders', function () {
	$orders = getAllOrders();
	echo json_encode($orders);
});
// 添加订单的路由
route('POST', '/orders/add', function () {
	if (isset($_POST['action']) && $_POST['action'] === 'add') {
		addOrder($_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	}
	header('Location: index.php');
	exit;
});
// 更新订单的路由
route('POST', '/orders/update', function () {
	if (isset($_POST['action']) && $_POST['action'] === 'update') {
		updateOrder($_POST['id'], $_POST['customer_name'], $_POST['product_name'], $_POST['quantity'], $_POST['total_price']);
	}
	header('Location: index.php');
	exit;
});
// 删除订单的路由
route('POST', '/orders/delete', function () {
	if (isset($_POST['action']) && $_POST['action'] === 'delete') {
		deleteOrder($_POST['id']);
	}
	header('Location: index.php');
	exit;
});

3.4.统一请求入口（网关）

 我们希望对order的所有请求转发到order_handler.php这个文件来，这里可以利用.htaccess来定义路由规则，在php代码的同级目录下，新建.htaccess文件，编辑下面的内容。将所有请求转发到index.php。

RewriteEngine On
RewriteRule ^(.*)$ index.php [QSA,L]

在index.php文件，加载路由文件，订单业务处理文件，

<?php
// 引入包含路由定义和相关函数（如addOrder、updateOrder等）的文件
require_once 'router.php';
require_once 'order_handler.php';


// 调用dispatch函数处理请求
dispatch();

// 跨域设置
// 允许任何来源访问
header('Access-Control-Allow-Origin: *');
// 允许的请求方法
header('Access-Control-Allow-Methods: GET, POST, OPTIONS');
// 允许的请求头
header('Access-Control-Allow-Headers: Content-Type');

修改客户端请求的url，由统一路径改为具体的路径，如http://localhost/demo/orders/add， action字段也可以去掉了。

3.5.另外一种路由：一个url对应一个文件

对于业务是对各种数据库表作增删查改，则可以换一种方式作映射。对于一张表，增删查改代表四种动作，对应不同的http方法，每一个动作对应一个php文件，采用下面的映射文件。

{
	"/api/order/": {
		"get": "api/order/query.php",
        "post": "api/order/create.php",
        "put": "api/order/edit.php",
        "delete": "api/order/delete.php",
	},
	"/api/user/": {
		"get": "api/user/query.php",
        "post": "api/user/create.php",
        "put": "api/user/edit.php",
        "delete": "api/user/delete.php",
	},
}

通过解析这个文件，得到url与对应的php文件。每次请求，提取出url与method类型，找到对应的php文件，加载后得到计算结果。代码如下：

// 启动一个输出缓冲区
ob_start();
// 根据url,method获取对应的php文件路径
$apiPath = mapAPI($path, $method);
// 加载php文件
include $apiPath;
// 获取缓冲区的结果
$body = ob_get_clean();

// 返回给客户端
return [
	'statusCode' => 200,
	'headers' => $headers,
	'body' => $body
];

这种模式有两个很不好的地方：

  • 如果接口很多，文件数据也相应非常多
  • 同一张表的增删查改逻辑可能很关联性，拆分成多个文件不利于代码的复用 

http://www.kler.cn/a/401060.html

相关文章：

  • React Native 全栈开发实战班 - 性能与调试之打包与发布
  • 什么是‌‌‌‌‌‌SQL，有什么特点
  • 数据库的性能优化 -- SQL性能优化
  • 【DBA攻坚指南：左右Oracle，右手MySQL-学习总结】
  • 面向对象几个自测题
  • 新能源汽车领域的磁集成解决方案及挑战
  • 鸿蒙网络编程系列49-仓颉版TCP客户端
  • 【Three.js】实现天空盒效果
  • Django模型关系之一对一
  • 设计模式之插件模式
  • Android WMS概览
  • 基于Java Springboot编程语言在线学习平台
  • 鸿蒙动画开发07——粒子动画
  • 小程序-基于java+SpringBoot+Vue的经济新闻资讯设计与实现
  • 怀旧游戏打卡清单（TODO）
  • java 根据 pdf 模板带图片文字生成pdf文件
  • 在阿里云快速启动Appsmith搭建前端页面
  • Windows注册表基础学习
  • C# 深层副本与浅层副本 深拷贝与浅拷贝
  • Pytest-Bdd-Playwright 系列教程（11）：场景快捷方式