课程代码

2025-12-03 23:08:39 +08:00
commit 290f629d2c
63 changed files with 7065 additions and 0 deletions
--- a/nodejs/nodeExperiment1/server.js
+++ b/nodejs/nodeExperiment1/server.js
@@ -0,0 +1,122 @@
+const os = require('os');
+const http = require('http');
+
+// 获取系统信息
+const getSystemInfo = () => {
+    try {
+        const totalMem = (os.totalmem() / (1024 ** 3)).toFixed(2) + ' GB';
+        const freeMem = (os.freemem() / (1024 ** 3)).toFixed(2) + ' GB';
+        const usedMem = ((os.totalmem() - os.freemem()) / (1024 ** 3)).toFixed(2) + ' GB';
+        const memUsage = (((os.totalmem() - os.freemem()) / os.totalmem()) * 100).toFixed(2) + '%';
+
+        const cpus = os.cpus();
+        const cpuModel = cpus[0]?.model || 'Unknown';
+        const cpuCores = cpus.length;
+
+
+return {
+    hostname: os.hostname(),
+    platform: os.platform(),
+    arch: os.arch(),
+    uptime: (os.uptime() / 3600).toFixed(2) + ' hours',
+
+    // 内存信息：使用前面计算好的变量
+    totalMem,        // 总内存大小
+    usedMem,         // 已使用内存
+    freeMem,         // 空闲内存
+    memUsage,        // 内存使用率
+    // CPU信息：使用前面计算好的变量
+    
+    cpuModel,        // CPU型号
+    cpuCores         // CPU核心数
+};
+    } catch (error) {
+        console.error('获取系统信息失败:', error.message);
+        return {};
+    }
+};
+
+// 创建HTTP服务器
+const server = http.createServer((req, res) => {
+    if (req.url === '/') {
+        const systemInfo = getSystemInfo();
+        const html = `
+<!DOCTYPE html>
+<html>
+<head>
+    <title>系统信息监控</title>
+    <style>
+        body { 
+            font-family: Arial, sans-serif; 
+            margin: 40px; 
+            background: #f5f5f5;
+        }
+        .container { 
+            max-width: 800px; 
+            margin: 0 auto; 
+            background: white; 
+            padding: 20px; 
+            border-radius: 10px;
+            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
+        }
+        h1 { 
+            color: #333; 
+            text-align: center;
+            border-bottom: 2px solid #eee;
+            padding-bottom: 10px;
+        }
+        .info-item { 
+            margin: 15px 0; 
+            padding: 10px;
+            background: #f9f9f9;
+            border-radius: 5px;
+        }
+        .label { 
+            font-weight: bold; 
+            color: #555;
+        }
+        .memory { border-left: 4px solid #4CAF50; }
+        .cpu { border-left: 4px solid #2196F3; }
+        .system { border-left: 4px solid #FF9800; }
+    </style>
+</head>
+<body>
+    <div class="container">
+        <h1>🖥️ 系统信息监控</h1>
+        
+        <div class="info-item system">
+            <span class="label">主机名:</span> ${systemInfo.hostname || 'N/A'}<br>
+            <span class="label">平台:</span> ${systemInfo.platform || 'N/A'}<br>
+            <span class="label">架构:</span> ${systemInfo.arch || 'N/A'}<br>
+            <span class="label">运行时间:</span> ${systemInfo.uptime || 'N/A'}
+        </div>
+
+        <div class="info-item memory">
+            <span class="label">总内存:</span> ${systemInfo.totalMem || 'N/A'}<br>
+            <span class="label">已用内存:</span> ${systemInfo.usedMem || 'N/A'}<br>
+            <span class="label">空闲内存:</span> ${systemInfo.freeMem || 'N/A'}<br>
+            <span class="label">内存使用率:</span> ${systemInfo.memUsage || 'N/A'}
+        </div>
+
+        <div class="info-item cpu">
+            <span class="label">CPU型号:</span> ${systemInfo.cpuModel || 'N/A'}<br>
+            <span class="label">CPU核心数:</span> ${systemInfo.cpuCores || 'N/A'}
+        </div>
+    </div>
+</body>
+</html>
+        `;
+
+        res.writeHead(200, { 'Content-Type': 'text/html; charset=utf-8' });
+        res.end(html);
+    } else {
+        res.writeHead(404, { 'Content-Type': 'text/plain' });
+        res.end('页面未找到');
+    }
+});
+
+// 启动服务器
+const PORT = 3000;
+server.listen(PORT, () => {
+    console.log(`🚀 服务器运行在 http://localhost:${PORT}`);
+});