改进端口状态检测逻辑
- 修复误报问题:默认为停止状态,需要确认后才显示运行中 - 简化检测逻辑,使用更可靠的Promise处理 - 添加简化版状态检测页面 status-checker.html - 减少误判,提高检测准确性
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156
index.html
156
index.html
@@ -502,98 +502,86 @@
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async function checkStatus(port) {
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const statusEl = document.getElementById(`status-${port}`);
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// 使用多种方法检测端口状态
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try {
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// 方法1: 创建一个script标签来测试
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const testScript = document.createElement('script');
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testScript.src = `http://localhost:${port}/vite.svg?t=${Date.now()}`;
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testScript.onerror = () => {
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// 方法2: 使用Image对象检测
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const img = new Image();
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let isResolved = false;
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// 默认设置为停止状态
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let isRunning = false;
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const checkTimeout = setTimeout(() => {
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if (!isResolved) {
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isResolved = true;
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statusEl.className = 'status status-stopped';
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statusEl.innerHTML = '<span class="status-dot"></span> 已停止';
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}
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}, 2000);
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// 创建一个Promise来处理超时
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const checkPromise = new Promise((resolve) => {
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// 使用Image对象检测,这是最可靠的跨域方法
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const img = new Image();
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let hasResponded = false;
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img.onload = () => {
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if (!isResolved) {
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isResolved = true;
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clearTimeout(checkTimeout);
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statusEl.className = 'status status-running';
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statusEl.innerHTML = '<span class="status-dot"></span> 运行中';
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}
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};
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// 设置超时
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const timeout = setTimeout(() => {
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if (!hasResponded) {
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hasResponded = true;
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resolve(false); // 超时则认为服务停止
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}
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}, 1500);
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img.onerror = () => {
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// 方法3: 尝试使用XMLHttpRequest
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const xhr = new XMLHttpRequest();
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xhr.open('HEAD', `http://localhost:${port}/`, true);
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xhr.timeout = 2000;
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xhr.onreadystatechange = function() {
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if (!isResolved && xhr.readyState === 4) {
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isResolved = true;
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clearTimeout(checkTimeout);
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// 即使有CORS错误,如果收到响应就说明服务在运行
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if (xhr.status === 0 || xhr.status === 200) {
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// status为0通常表示CORS阻止,但服务器确实响应了
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statusEl.className = 'status status-running';
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statusEl.innerHTML = '<span class="status-dot"></span> 运行中';
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} else {
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statusEl.className = 'status status-stopped';
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statusEl.innerHTML = '<span class="status-dot"></span> 已停止';
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}
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}
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};
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xhr.onerror = function() {
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if (!isResolved) {
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isResolved = true;
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clearTimeout(checkTimeout);
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// 网络错误通常意味着服务未运行
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statusEl.className = 'status status-stopped';
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statusEl.innerHTML = '<span class="status-dot"></span> 已停止';
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}
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};
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try {
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xhr.send();
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} catch(e) {
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// 发送失败,但这可能是因为CORS
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if (!isResolved) {
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isResolved = true;
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clearTimeout(checkTimeout);
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statusEl.className = 'status status-running';
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statusEl.innerHTML = '<span class="status-dot"></span> 运行中';
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}
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}
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};
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// 尝试加载各种可能的静态资源
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const possiblePaths = [
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'/favicon.ico',
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'/vite.svg',
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'/index.html',
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'/assets/index.css'
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];
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img.src = `http://localhost:${port}${possiblePaths[0]}?t=${Date.now()}`;
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img.onload = () => {
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if (!hasResponded) {
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hasResponded = true;
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clearTimeout(timeout);
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resolve(true); // 加载成功说明服务运行中
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}
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};
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testScript.onload = () => {
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statusEl.className = 'status status-running';
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statusEl.innerHTML = '<span class="status-dot"></span> 运行中';
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img.onerror = () => {
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if (!hasResponded) {
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hasResponded = true;
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clearTimeout(timeout);
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// 图片加载失败,尝试fetch检测
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fetch(`http://localhost:${port}/`, {
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mode: 'no-cors',
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cache: 'no-cache'
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}).then(() => {
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// 如果fetch没有抛出错误,说明服务可能在运行
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// 但由于CORS,我们无法获取响应内容
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// 这种情况下我们需要更谨慎的判断
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// 创建一个iframe来尝试加载页面
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const iframe = document.createElement('iframe');
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iframe.style.display = 'none';
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iframe.src = `http://localhost:${port}/`;
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const iframeTimeout = setTimeout(() => {
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document.body.removeChild(iframe);
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resolve(false); // iframe也无法加载,服务停止
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}, 1000);
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iframe.onload = () => {
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clearTimeout(iframeTimeout);
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document.body.removeChild(iframe);
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resolve(true); // iframe加载成功,服务运行中
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};
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iframe.onerror = () => {
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clearTimeout(iframeTimeout);
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document.body.removeChild(iframe);
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resolve(false); // iframe加载失败,服务停止
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};
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document.body.appendChild(iframe);
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}).catch(() => {
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// fetch失败,服务未运行
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resolve(false);
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});
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}
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};
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document.head.appendChild(testScript);
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setTimeout(() => document.head.removeChild(testScript), 100);
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// 尝试加载favicon或vite.svg
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img.src = `http://localhost:${port}/vite.svg?t=${Date.now()}`;
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});
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} catch (error) {
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// 等待检测结果
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isRunning = await checkPromise;
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// 更新UI
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if (isRunning) {
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statusEl.className = 'status status-running';
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statusEl.innerHTML = '<span class="status-dot"></span> 运行中';
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} else {
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statusEl.className = 'status status-stopped';
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statusEl.innerHTML = '<span class="status-dot"></span> 已停止';
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}
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