Add k3s cluster expansion documentation and scripts
- Complete expansion guide for 2/4/6 node scenarios - Quick join scripts for worker and master nodes - Health check and diagnostic scripts - Quick reference card for common operations
This commit is contained in:
K3s Admin
22
php-test/Database.php
Normal file
22
php-test/Database.php
Normal file
@@ -0,0 +1,22 @@
|
||||
<?php
|
||||
require_once 'config.php';
|
||||
|
||||
class Database {
|
||||
private static ?PDO $instance = null;
|
||||
|
||||
public static function getConnection(): PDO {
|
||||
if (self::$instance === null) {
|
||||
try {
|
||||
$dsn = "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=" . DB_CHARSET;
|
||||
self::$instance = new PDO($dsn, DB_USER, DB_PASS, [
|
||||
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
|
||||
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
|
||||
PDO::ATTR_EMULATE_PREPARES => false,
|
||||
]);
|
||||
} catch (PDOException $e) {
|
||||
die("数据库连接失败: " . $e->getMessage());
|
||||
}
|
||||
}
|
||||
return self::$instance;
|
||||
}
|
||||
}
|
||||
11
php-test/config.php
Normal file
11
php-test/config.php
Normal file
@@ -0,0 +1,11 @@
|
||||
<?php
|
||||
// 数据库配置
|
||||
define('DB_HOST', 'localhost');
|
||||
define('DB_NAME', 'test_db');
|
||||
define('DB_USER', 'root');
|
||||
define('DB_PASS', '');
|
||||
define('DB_CHARSET', 'utf8mb4');
|
||||
|
||||
// 错误报告设置（开发环境）
|
||||
error_reporting(E_ALL);
|
||||
ini_set('display_errors', 1);
|
||||
210
php-test/index.php
Normal file
210
php-test/index.php
Normal file
@@ -0,0 +1,210 @@
|
||||
<!DOCTYPE html>
|
||||
<html lang="zh-CN">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
<title>PHP MySQL 测试表单</title>
|
||||
<style>
|
||||
* {
|
||||
margin: 0;
|
||||
padding: 0;
|
||||
box-sizing: border-box;
|
||||
}
|
||||
body {
|
||||
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
|
||||
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
|
||||
min-height: 100vh;
|
||||
display: flex;
|
||||
justify-content: center;
|
||||
align-items: center;
|
||||
padding: 20px;
|
||||
}
|
||||
.container {
|
||||
background: white;
|
||||
padding: 40px;
|
||||
border-radius: 10px;
|
||||
box-shadow: 0 10px 40px rgba(0,0,0,0.2);
|
||||
max-width: 500px;
|
||||
width: 100%;
|
||||
}
|
||||
h1 {
|
||||
color: #333;
|
||||
margin-bottom: 30px;
|
||||
text-align: center;
|
||||
}
|
||||
.form-group {
|
||||
margin-bottom: 20px;
|
||||
}
|
||||
label {
|
||||
display: block;
|
||||
margin-bottom: 8px;
|
||||
color: #555;
|
||||
font-weight: 500;
|
||||
}
|
||||
input, textarea {
|
||||
width: 100%;
|
||||
padding: 12px;
|
||||
border: 2px solid #e0e0e0;
|
||||
border-radius: 5px;
|
||||
font-size: 14px;
|
||||
transition: border-color 0.3s;
|
||||
}
|
||||
input:focus, textarea:focus {
|
||||
outline: none;
|
||||
border-color: #667eea;
|
||||
}
|
||||
textarea {
|
||||
resize: vertical;
|
||||
min-height: 100px;
|
||||
}
|
||||
button {
|
||||
width: 100%;
|
||||
padding: 14px;
|
||||
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
|
||||
color: white;
|
||||
border: none;
|
||||
border-radius: 5px;
|
||||
font-size: 16px;
|
||||
font-weight: 600;
|
||||
cursor: pointer;
|
||||
transition: transform 0.2s;
|
||||
}
|
||||
button:hover {
|
||||
transform: translateY(-2px);
|
||||
}
|
||||
.message {
|
||||
padding: 15px;
|
||||
border-radius: 5px;
|
||||
margin-bottom: 20px;
|
||||
display: none;
|
||||
}
|
||||
.message.success {
|
||||
background: #d4edda;
|
||||
color: #155724;
|
||||
border: 1px solid #c3e6cb;
|
||||
display: block;
|
||||
}
|
||||
.message.error {
|
||||
background: #f8d7da;
|
||||
color: #721c24;
|
||||
border: 1px solid #f5c6cb;
|
||||
display: block;
|
||||
}
|
||||
.records {
|
||||
margin-top: 30px;
|
||||
padding-top: 30px;
|
||||
border-top: 2px solid #e0e0e0;
|
||||
}
|
||||
.records h2 {
|
||||
color: #333;
|
||||
margin-bottom: 15px;
|
||||
font-size: 20px;
|
||||
}
|
||||
.record-item {
|
||||
background: #f8f9fa;
|
||||
padding: 15px;
|
||||
border-radius: 5px;
|
||||
margin-bottom: 10px;
|
||||
border-left: 4px solid #667eea;
|
||||
}
|
||||
.record-item strong {
|
||||
color: #667eea;
|
||||
}
|
||||
.record-item p {
|
||||
margin: 5px 0;
|
||||
color: #555;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<div class="container">
|
||||
<h1>📝 数据库测试表单</h1>
|
||||
|
||||
<?php
|
||||
require_once 'Database.php';
|
||||
|
||||
// 显示提交结果消息
|
||||
if (isset($_GET['status'])) {
|
||||
if ($_GET['status'] === 'success') {
|
||||
echo '<div class="message success">✅ 数据提交成功！</div>';
|
||||
} elseif ($_GET['status'] === 'error') {
|
||||
$error = htmlspecialchars($_GET['msg'] ?? '未知错误');
|
||||
echo '<div class="message error">❌ 提交失败: ' . $error . '</div>';
|
||||
}
|
||||
}
|
||||
?>
|
||||
|
||||
<form action="submit.php" method="POST">
|
||||
<div class="form-group">
|
||||
<label for="name">姓名 *</label>
|
||||
<input type="text" id="name" name="name" required placeholder="请输入您的姓名">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="email">邮箱 *</label>
|
||||
<input type="email" id="email" name="email" required placeholder="example@email.com">
|
||||
</div>
|
||||
|
||||
<div class="form-group">
|
||||
<label for="message">留言</label>
|
||||
<textarea id="message" name="message" placeholder="请输入您的留言..."></textarea>
|
||||
</div>
|
||||
|
||||
<button type="submit">提交数据</button>
|
||||
</form>
|
||||
|
||||
<div class="records">
|
||||
<h2>📊 最近提交的数据</h2>
|
||||
<?php
|
||||
try {
|
||||
$db = Database::getConnection();
|
||||
$stmt = $db->query("SELECT * FROM test_data ORDER BY created_at DESC LIMIT 5");
|
||||
$records = $stmt->fetchAll();
|
||||
|
||||
if (count($records) > 0) {
|
||||
foreach ($records as $record) {
|
||||
echo '<div class="record-item">';
|
||||
echo '<p><strong>姓名:</strong> ' . htmlspecialchars($record['name']) . '</p>';
|
||||
echo '<p><strong>邮箱:</strong> ' . htmlspecialchars($record['email']) . '</p>';
|
||||
if (!empty($record['message'])) {
|
||||
echo '<p><strong>留言:</strong> ' . htmlspecialchars($record['message']) . '</p>';
|
||||
}
|
||||
echo '<p><strong>提交时间:</strong> ' . $record['created_at'] . '</p>';
|
||||
echo '</div>';
|
||||
}
|
||||
} else {
|
||||
echo '<p style="color: #999; text-align: center;">暂无数据</p>';
|
||||
}
|
||||
} catch (Exception $e) {
|
||||
echo '<p style="color: #dc3545;">数据库查询失败: ' . htmlspecialchars($e->getMessage()) . '</p>';
|
||||
}
|
||||
?>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<!-- 热更新脚本 -->
|
||||
<script>
|
||||
let lastModified = null;
|
||||
|
||||
function checkForUpdates() {
|
||||
fetch(window.location.href, {
|
||||
method: 'HEAD',
|
||||
cache: 'no-cache'
|
||||
})
|
||||
.then(response => {
|
||||
const modified = response.headers.get('Last-Modified');
|
||||
if (lastModified && modified && lastModified !== modified) {
|
||||
console.log('检测到文件更新，正在刷新页面...');
|
||||
window.location.reload();
|
||||
}
|
||||
lastModified = modified;
|
||||
})
|
||||
.catch(err => console.error('检查更新失败:', err));
|
||||
}
|
||||
|
||||
// 每2秒检查一次更新
|
||||
setInterval(checkForUpdates, 2000);
|
||||
checkForUpdates();
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
13
php-test/schema.sql
Normal file
13
php-test/schema.sql
Normal file
@@ -0,0 +1,13 @@
|
||||
-- 创建数据库
|
||||
CREATE DATABASE IF NOT EXISTS test_db CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
|
||||
|
||||
USE test_db;
|
||||
|
||||
-- 创建测试表
|
||||
CREATE TABLE IF NOT EXISTS test_data (
|
||||
id INT AUTO_INCREMENT PRIMARY KEY,
|
||||
name VARCHAR(100) NOT NULL,
|
||||
email VARCHAR(100) NOT NULL,
|
||||
message TEXT,
|
||||
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
|
||||
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
|
||||
50
php-test/submit.php
Normal file
50
php-test/submit.php
Normal file
@@ -0,0 +1,50 @@
|
||||
<?php
|
||||
require_once 'Database.php';
|
||||
|
||||
header('Content-Type: application/json; charset=utf-8');
|
||||
|
||||
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
|
||||
header('Location: index.php');
|
||||
exit;
|
||||
}
|
||||
|
||||
try {
|
||||
// 获取表单数据
|
||||
$name = trim($_POST['name'] ?? '');
|
||||
$email = trim($_POST['email'] ?? '');
|
||||
$message = trim($_POST['message'] ?? '');
|
||||
|
||||
// 验证必填字段
|
||||
if (empty($name) || empty($email)) {
|
||||
throw new Exception('姓名和邮箱为必填项');
|
||||
}
|
||||
|
||||
// 验证邮箱格式
|
||||
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
|
||||
throw new Exception('邮箱格式不正确');
|
||||
}
|
||||
|
||||
// 获取数据库连接
|
||||
$db = Database::getConnection();
|
||||
|
||||
// 准备SQL语句
|
||||
$sql = "INSERT INTO test_data (name, email, message) VALUES (:name, :email, :message)";
|
||||
$stmt = $db->prepare($sql);
|
||||
|
||||
// 绑定参数并执行
|
||||
$stmt->execute([
|
||||
':name' => $name,
|
||||
':email' => $email,
|
||||
':message' => $message
|
||||
]);
|
||||
|
||||
// 重定向到首页并显示成功消息
|
||||
header('Location: index.php?status=success');
|
||||
exit;
|
||||
|
||||
} catch (Exception $e) {
|
||||
// 重定向到首页并显示错误消息
|
||||
$errorMsg = urlencode($e->getMessage());
|
||||
header('Location: index.php?status=error&msg=' . $errorMsg);
|
||||
exit;
|
||||
}
|
||||
Reference in New Issue
Block a user