mirror of
https://github.com/wahyd4/wahyd4.github.com.git
synced 2026-08-18 18:15:57 +10:00
881 lines
37 KiB
HTML
881 lines
37 KiB
HTML
<!DOCTYPE html>
|
||
<html lang="zh-CN">
|
||
<head>
|
||
<meta charset="UTF-8">
|
||
<meta name="viewport" content="width=device-width">
|
||
<meta name="theme-color" content="#222"><meta name="generator" content="Hexo 6.3.0">
|
||
|
||
<link rel="apple-touch-icon" sizes="180x180" href="/images/apple-touch-icon-next.png">
|
||
<link rel="icon" type="image/png" sizes="32x32" href="/images/favicon-32x32-next.png">
|
||
<link rel="icon" type="image/png" sizes="16x16" href="/images/favicon-16x16-next.png">
|
||
<link rel="mask-icon" href="/images/logo.svg" color="#222">
|
||
|
||
<link rel="stylesheet" href="/css/main.css">
|
||
|
||
|
||
|
||
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/7.0.0/css/all.min.css" integrity="sha256-VHqXKFhhMxcpubYf9xiWdCiojEbY9NexQ4jh8AxbvcM=" crossorigin="anonymous">
|
||
|
||
<script class="next-config" data-name="main" type="application/json">{"hostname":"toozhao.com","root":"/","images":"/images","scheme":"Muse","darkmode":false,"version":"8.28.0","exturl":false,"sidebar":{"position":"left","width_expanded":320,"width_dual_column":240,"display":"post","padding":18,"offset":12,"b2t":true,"scrollpercent":true},"hljswrap":true,"codeblock":{"theme":{"light":"default","dark":"stackoverflow-dark"},"prism":{"light":"prism","dark":"prism-dark"},"copy_button":{"enable":true,"style":"mac"},"fold":{"enable":false,"height":500},"language":false},"bookmark":{"enable":true,"color":"#222","save":"auto"},"mediumzoom":true,"lazyload":false,"pangu":false,"comments":{"style":"tabs","active":null,"storage":true,"lazyload":false,"nav":null},"stickytabs":false,"motion":{"enable":false,"async":false,"duration":200,"transition":{"menu_item":"fadeInDown","post_block":"fadeIn","post_header":"fadeInDown","post_body":"fadeInDown","coll_header":"fadeInLeft","sidebar":"fadeInUp"}},"prism":false,"i18n":{"placeholder":"搜索...","empty":"没有找到任何搜索结果：${query}","hits_time":"找到 ${hits} 个搜索结果（用时 ${time} 毫秒）","hits":"找到 ${hits} 个搜索结果"},"path":"/search.xml","localsearch":{"enable":true,"top_n_per_article":5,"unescape":false,"preload":false,"trigger":"auto"}}</script><script src="/js/config.js" defer></script>
|
||
|
||
<meta name="description" content="因为公司最近开始不统一订饭了，但是我那么点工资到下面食堂去吃，既贵也吃不好，其他那些没工资的实训的同学就更伤不起了。为了脱离机械式的让每个人在纸上写上自己的名字。我用nodejs写了一个简单的程序来完成在网上订饭的功能。用户只需要进入网址。即可以完成订饭。这个程序是用nodejs+mysql完成的。使用了nodejs的 express和mysql包 使用下面的命令即可安装： 123npm inst">
|
||
<meta property="og:type" content="article">
|
||
<meta property="og:title" content="一个Nodejs写的简易订饭程序">
|
||
<meta property="og:url" content="https://toozhao.com/2012/07/10/a-simple-nodejs-program/">
|
||
<meta property="og:site_name" content="大染志">
|
||
<meta property="og:description" content="因为公司最近开始不统一订饭了，但是我那么点工资到下面食堂去吃，既贵也吃不好，其他那些没工资的实训的同学就更伤不起了。为了脱离机械式的让每个人在纸上写上自己的名字。我用nodejs写了一个简单的程序来完成在网上订饭的功能。用户只需要进入网址。即可以完成订饭。这个程序是用nodejs+mysql完成的。使用了nodejs的 express和mysql包 使用下面的命令即可安装： 123npm inst">
|
||
<meta property="og:locale" content="zh_CN">
|
||
<meta property="article:published_time" content="2012-07-10T14:00:00.000Z">
|
||
<meta property="article:modified_time" content="2026-08-11T12:22:51.364Z">
|
||
<meta property="article:author" content="Junv">
|
||
<meta property="article:tag" content="mysql">
|
||
<meta property="article:tag" content="expressjs">
|
||
<meta property="article:tag" content="nodejs">
|
||
<meta name="twitter:card" content="summary">
|
||
|
||
|
||
<link rel="canonical" href="https://toozhao.com/2012/07/10/a-simple-nodejs-program/">
|
||
|
||
|
||
<script class="next-config" data-name="page" type="application/json">{"sidebar":"","isHome":false,"isPost":true,"lang":"zh-CN","comments":true,"permalink":"https://toozhao.com/2012/07/10/a-simple-nodejs-program/","path":"2012/07/10/a-simple-nodejs-program/","title":"一个Nodejs写的简易订饭程序"}</script>
|
||
|
||
<script class="next-config" data-name="calendar" type="application/json">""</script>
|
||
<title>一个Nodejs写的简易订饭程序 | 大染志</title>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<script src="https://cdnjs.cloudflare.com/ajax/libs/animejs/3.2.1/anime.min.js" integrity="sha256-XL2inqUJaslATFnHdJOi9GfQ60on8Wx1C2H8DYiN1xY=" crossorigin="anonymous" defer></script>
|
||
<script src="https://cdnjs.cloudflare.com/ajax/libs/medium-zoom/1.1.0/medium-zoom.min.js" integrity="sha256-ZgMyDAIYDYGxbcpJcfUnYwNevG/xi9OHKaR/8GK+jWc=" crossorigin="anonymous" defer></script>
|
||
<script src="/js/utils.js" defer></script><script src="/js/sidebar.js" defer></script><script src="/js/next-boot.js" defer></script><script src="/js/bookmark.js" defer></script>
|
||
|
||
<script src="https://cdnjs.cloudflare.com/ajax/libs/hexo-generator-searchdb/1.5.0/search.js" integrity="sha256-xFC6PJ82SL9b3WkGjFavNiA9gm5z6UBxWPiu4CYjptg=" crossorigin="anonymous" defer></script>
|
||
<script src="/js/third-party/search/local-search.js" defer></script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<style>
|
||
/* =========================================================
|
||
Toozhao blog custom styles (injected via head.njk)
|
||
阅读体验优化 — 微信读书风格
|
||
========================================================= */
|
||
html { scroll-behavior: smooth; }
|
||
|
||
/* 主内容阅读宽度 */
|
||
.post-block, .posts-expand .post-block {
|
||
max-width: 760px;
|
||
}
|
||
|
||
.post-title {
|
||
font-size: 1.7em;
|
||
font-weight: 700;
|
||
letter-spacing: 0.01em;
|
||
}
|
||
|
||
.post-meta { color: #999; font-size: 0.9em; }
|
||
|
||
.post-body {
|
||
font-size: 1.05em;
|
||
line-height: 1.9;
|
||
letter-spacing: 0.02em;
|
||
color: #333;
|
||
}
|
||
.post-body p {
|
||
margin: 1.1em 0;
|
||
text-align: justify;
|
||
text-justify: inter-ideograph;
|
||
}
|
||
.post-body h1, .post-body h2, .post-body h3, .post-body h4, .post-body h5, .post-body h6 {
|
||
line-height: 1.4;
|
||
margin-top: 1.6em;
|
||
margin-bottom: 0.8em;
|
||
font-weight: 600;
|
||
color: #222;
|
||
}
|
||
.post-body h2::before, .post-body h3::before, .post-body h4::before {
|
||
content: '';
|
||
display: inline-block;
|
||
width: 4px;
|
||
height: 0.9em;
|
||
background: #4a90d9;
|
||
border-radius: 2px;
|
||
margin-right: 10px;
|
||
vertical-align: -0.08em;
|
||
}
|
||
.post-body img {
|
||
border-radius: 8px;
|
||
box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
|
||
margin: 0.6em auto;
|
||
display: block;
|
||
max-width: 100%;
|
||
}
|
||
.post-body blockquote {
|
||
border-left: 4px solid #4a90d9;
|
||
background: rgba(74, 144, 217, 0.06);
|
||
margin: 1.4em 0;
|
||
padding: 0.8em 1.2em;
|
||
border-radius: 0 8px 8px 0;
|
||
color: #555;
|
||
}
|
||
.post-body blockquote p { margin: 0.4em 0; }
|
||
.post-body a {
|
||
color: #2d6cdf;
|
||
border-bottom: 1px solid rgba(45, 108, 223, 0.3);
|
||
transition: color 0.2s, border-color 0.2s;
|
||
}
|
||
.post-body a:hover { color: #1a4fae; border-bottom-color: #1a4fae; }
|
||
.post-body code {
|
||
background: rgba(0, 0, 0, 0.05);
|
||
border-radius: 4px;
|
||
padding: 2px 6px;
|
||
font-size: 0.9em;
|
||
color: #c7254e;
|
||
}
|
||
.post-body table {
|
||
border-collapse: collapse;
|
||
margin: 1.2em auto;
|
||
font-size: 0.95em;
|
||
}
|
||
.post-body table th, .post-body table td {
|
||
border: 1px solid #ddd;
|
||
padding: 8px 14px;
|
||
}
|
||
.post-body table th { background: #f5f7fa; font-weight: 600; }
|
||
.post-body table tr:nth-child(even) { background: #fafbfc; }
|
||
.post-body ul, .post-body ol { padding-left: 1.6em; margin: 0.8em 0; }
|
||
.post-body ul li, .post-body ol li { margin: 0.35em 0; }
|
||
.post-body hr {
|
||
border: none;
|
||
border-top: 1px dashed #ccc;
|
||
margin: 2em auto;
|
||
width: 60%;
|
||
}
|
||
|
||
/* 暗色模式（跟随系统，不依赖 NexT darkmode class） */
|
||
@media (prefers-color-scheme: dark) {
|
||
body { background: #1b1f24; color: #c8cdd3; }
|
||
.post-body { color: #c8cdd3; }
|
||
.post-body h1, .post-body h2, .post-body h3, .post-body h4, .post-body h5, .post-body h6 { color: #e8eaed; }
|
||
.post-body blockquote { background: rgba(74, 144, 217, 0.1); color: #9aa5b1; }
|
||
.post-body code { background: rgba(255, 255, 255, 0.1); color: #e88388; }
|
||
.post-body table th, .post-body table td { border-color: #3a3f45; }
|
||
.post-body table th { background: #2d3238; }
|
||
.post-body table tr:nth-child(even) { background: #262a2f; }
|
||
.post-meta { color: #777; }
|
||
}
|
||
|
||
::selection { background: rgba(74, 144, 217, 0.25); }
|
||
|
||
/* =========================================================
|
||
阅读设置（Aa 悬浮按钮 + 面板）— 参考 Links Reading settings
|
||
========================================================= */
|
||
/* 悬浮按钮：左下，与 sidebar-toggle 排成一列 */
|
||
.reading-toggle {
|
||
position: fixed;
|
||
left: 24px;
|
||
bottom: 108px;
|
||
z-index: 1000;
|
||
width: 34px;
|
||
height: 34px;
|
||
border-radius: 50%;
|
||
background: rgba(0, 0, 0, 0.65);
|
||
color: #fff;
|
||
font-family: Georgia, "Times New Roman", serif;
|
||
font-size: 16px;
|
||
font-weight: 700;
|
||
font-style: italic;
|
||
display: flex;
|
||
align-items: center;
|
||
justify-content: center;
|
||
cursor: pointer;
|
||
user-select: none;
|
||
border: none;
|
||
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.28);
|
||
transition: background 0.2s, transform 0.2s;
|
||
}
|
||
.reading-toggle:hover { background: #4a90d9; transform: scale(1.1); }
|
||
.reading-toggle.active { background: #4a90d9; }
|
||
|
||
/* 设置面板 */
|
||
.reading-panel {
|
||
position: fixed;
|
||
left: 68px;
|
||
bottom: 108px;
|
||
z-index: 1001;
|
||
width: 268px;
|
||
background: #fff;
|
||
border-radius: 14px;
|
||
box-shadow: 0 14px 44px rgba(0, 0, 0, 0.2);
|
||
padding: 16px 18px 14px;
|
||
font-size: 13px;
|
||
color: #333;
|
||
display: none;
|
||
transform-origin: bottom left;
|
||
animation: rpIn 0.18s ease;
|
||
}
|
||
.reading-panel.open { display: block; }
|
||
@keyframes rpIn {
|
||
from { opacity: 0; transform: translateY(8px) scale(0.96); }
|
||
to { opacity: 1; transform: none; }
|
||
}
|
||
.reading-panel h4 {
|
||
margin: 0 0 8px;
|
||
font-size: 11px;
|
||
font-weight: 700;
|
||
letter-spacing: 0.1em;
|
||
color: #9aa0a8;
|
||
text-transform: uppercase;
|
||
}
|
||
.reading-panel .rp-row { margin-bottom: 15px; }
|
||
.reading-panel .rp-row:last-of-type { margin-bottom: 10px; }
|
||
|
||
/* 主题色 swatch */
|
||
.rp-themes { display: flex; gap: 8px; }
|
||
.rp-themes .sw {
|
||
flex: 1;
|
||
border: 2px solid transparent;
|
||
border-radius: 10px;
|
||
padding: 6px 4px 5px;
|
||
cursor: pointer;
|
||
background: none;
|
||
font-size: 12px;
|
||
color: #666;
|
||
display: flex;
|
||
flex-direction: column;
|
||
align-items: center;
|
||
gap: 4px;
|
||
transition: border-color 0.15s;
|
||
}
|
||
.rp-themes .sw span {
|
||
display: block;
|
||
width: 30px;
|
||
height: 22px;
|
||
border-radius: 6px;
|
||
border: 1px solid rgba(0, 0, 0, 0.12);
|
||
}
|
||
.rp-themes .sw.active { border-color: #4a90d9; color: #4a90d9; font-weight: 600; }
|
||
.sw-light span { background: #ffffff; }
|
||
.sw-paper span { background: #f7f0e4; }
|
||
.sw-green span { background: #e2efe4; }
|
||
.sw-night span { background: #1b1f24; }
|
||
|
||
/* 字体选项 */
|
||
.rp-fonts { display: flex; flex-wrap: wrap; gap: 6px; }
|
||
.rp-fonts button {
|
||
flex: 1 1 40%;
|
||
border: 1px solid #e2e5ea;
|
||
background: #f8f9fb;
|
||
border-radius: 8px;
|
||
padding: 6px 4px;
|
||
font-size: 12.5px;
|
||
color: #444;
|
||
cursor: pointer;
|
||
transition: all 0.15s;
|
||
}
|
||
.rp-fonts button.active { background: #eaf2fd; border-color: #4a90d9; color: #2d6cdf; font-weight: 600; }
|
||
.rp-fonts button:nth-child(n+5) { flex-basis: 100%; }
|
||
|
||
/* 字号 */
|
||
.rp-size { display: flex; align-items: center; gap: 10px; }
|
||
.rp-size button {
|
||
width: 36px;
|
||
height: 30px;
|
||
border-radius: 8px;
|
||
border: 1px solid #e2e5ea;
|
||
background: #f8f9fb;
|
||
font-size: 14px;
|
||
color: #444;
|
||
cursor: pointer;
|
||
transition: all 0.15s;
|
||
}
|
||
.rp-size button:hover { background: #eaf2fd; border-color: #4a90d9; color: #2d6cdf; }
|
||
.rp-size-val {
|
||
flex: 1;
|
||
text-align: center;
|
||
font-size: 13.5px;
|
||
font-weight: 600;
|
||
color: #555;
|
||
background: #f8f9fb;
|
||
border-radius: 8px;
|
||
padding: 5px 0;
|
||
}
|
||
|
||
/* 行距 */
|
||
.rp-spacing { display: flex; gap: 6px; }
|
||
.rp-spacing button {
|
||
flex: 1;
|
||
border: 1px solid #e2e5ea;
|
||
background: #f8f9fb;
|
||
border-radius: 8px;
|
||
padding: 6px 0;
|
||
font-size: 12.5px;
|
||
color: #444;
|
||
cursor: pointer;
|
||
transition: all 0.15s;
|
||
}
|
||
.rp-spacing button.active { background: #eaf2fd; border-color: #4a90d9; color: #2d6cdf; font-weight: 600; }
|
||
|
||
/* 重置 */
|
||
.rp-reset {
|
||
width: 100%;
|
||
border: none;
|
||
background: none;
|
||
color: #9aa0a8;
|
||
font-size: 12.5px;
|
||
padding: 8px 0 2px;
|
||
cursor: pointer;
|
||
border-top: 1px solid #eef0f3;
|
||
margin-top: 2px;
|
||
transition: color 0.15s;
|
||
}
|
||
.rp-reset:hover { color: #4a90d9; }
|
||
|
||
/* ---- 阅读主题应用 ---- */
|
||
body[data-rtheme="paper"] { background: #f7f0e4 !important; }
|
||
body[data-rtheme="paper"] .post-body { color: #4a4238; }
|
||
body[data-rtheme="paper"] .post-body h1, body[data-rtheme="paper"] .post-body h2,
|
||
body[data-rtheme="paper"] .post-body h3, body[data-rtheme="paper"] .post-body h4,
|
||
body[data-rtheme="paper"] .post-body h5, body[data-rtheme="paper"] .post-body h6 { color: #3a332b; }
|
||
body[data-rtheme="paper"] .post-body a { color: #8a5a2b; border-bottom-color: rgba(138, 90, 43, 0.3); }
|
||
body[data-rtheme="paper"] .post-body a:hover { color: #6b4420; }
|
||
body[data-rtheme="paper"] .post-body blockquote { background: rgba(138, 90, 43, 0.07); color: #6b5d4a; }
|
||
body[data-rtheme="paper"] .post-body code { background: rgba(0, 0, 0, 0.06); color: #8a4a3a; }
|
||
body[data-rtheme="paper"] .post-body table th { background: #efe7d5; }
|
||
body[data-rtheme="paper"] .post-body table tr:nth-child(even) { background: #f4ede0; }
|
||
body[data-rtheme="paper"] .reading-panel { background: #fdfaf3; color: #4a4238; }
|
||
|
||
body[data-rtheme="green"] { background: #e2efe4 !important; }
|
||
body[data-rtheme="green"] .post-body { color: #2f4a36; }
|
||
body[data-rtheme="green"] .post-body h1, body[data-rtheme="green"] .post-body h2,
|
||
body[data-rtheme="green"] .post-body h3, body[data-rtheme="green"] .post-body h4,
|
||
body[data-rtheme="green"] .post-body h5, body[data-rtheme="green"] .post-body h6 { color: #23402c; }
|
||
body[data-rtheme="green"] .post-body a { color: #1d6b3c; border-bottom-color: rgba(29, 107, 60, 0.3); }
|
||
body[data-rtheme="green"] .post-body a:hover { color: #14522d; }
|
||
body[data-rtheme="green"] .post-body blockquote { background: rgba(29, 107, 60, 0.08); color: #41604c; }
|
||
body[data-rtheme="green"] .post-body code { background: rgba(0, 0, 0, 0.05); color: #1d6b3c; }
|
||
body[data-rtheme="green"] .post-body table th { background: #d4e8d8; }
|
||
body[data-rtheme="green"] .post-body table tr:nth-child(even) { background: #dcecdd; }
|
||
body[data-rtheme="green"] .reading-panel { background: #f0f8f1; color: #2f4a36; }
|
||
|
||
body[data-rtheme="night"] { background: #1b1f24 !important; }
|
||
body[data-rtheme="night"] .post-body { color: #c8cdd3; }
|
||
body[data-rtheme="night"] .post-body h1, body[data-rtheme="night"] .post-body h2,
|
||
body[data-rtheme="night"] .post-body h3, body[data-rtheme="night"] .post-body h4,
|
||
body[data-rtheme="night"] .post-body h5, body[data-rtheme="night"] .post-body h6 { color: #e8eaed; }
|
||
body[data-rtheme="night"] .post-body a { color: #7ba6f0; border-bottom-color: rgba(123, 166, 240, 0.35); }
|
||
body[data-rtheme="night"] .post-body a:hover { color: #a5c4f5; }
|
||
body[data-rtheme="night"] .post-body blockquote { background: rgba(123, 166, 240, 0.1); color: #9aa5b1; }
|
||
body[data-rtheme="night"] .post-body code { background: rgba(255, 255, 255, 0.1); color: #e88388; }
|
||
body[data-rtheme="night"] .post-body table th, body[data-rtheme="night"] .post-body table td { border-color: #3a3f45; }
|
||
body[data-rtheme="night"] .post-body table th { background: #2d3238; }
|
||
body[data-rtheme="night"] .post-body table tr:nth-child(even) { background: #262a2f; }
|
||
body[data-rtheme="night"] .reading-toggle { background: rgba(255, 255, 255, 0.14); }
|
||
body[data-rtheme="night"] .reading-panel { background: #23282e; color: #c8cdd3; }
|
||
body[data-rtheme="night"] .reading-panel h4 { color: #7a828c; }
|
||
body[data-rtheme="night"] .rp-fonts button, body[data-rtheme="night"] .rp-size button,
|
||
body[data-rtheme="night"] .rp-spacing button { background: #2d333a; border-color: #3a414a; color: #c8cdd3; }
|
||
body[data-rtheme="night"] .rp-fonts button.active, body[data-rtheme="night"] .rp-size button:hover,
|
||
body[data-rtheme="night"] .rp-spacing button.active { background: #35465c; border-color: #4a90d9; color: #9dc0f0; }
|
||
body[data-rtheme="night"] .rp-size-val { background: #2d333a; color: #c8cdd3; }
|
||
body[data-rtheme="night"] .rp-themes .sw { color: #9aa5b1; }
|
||
body[data-rtheme="night"] .rp-reset { border-top-color: #333a42; color: #7a828c; }
|
||
|
||
/* 移动端：按钮缩小、面板右移防溢出 */
|
||
@media (max-width: 600px) {
|
||
.reading-toggle { left: 16px; bottom: 96px; width: 32px; height: 32px; }
|
||
.reading-panel { left: 56px; bottom: 96px; width: 240px; }
|
||
}
|
||
</style>
|
||
<link rel="stylesheet" href="/css/tag-cloud.css">
|
||
|
||
<noscript>
|
||
<link rel="stylesheet" href="/css/noscript.css">
|
||
</noscript>
|
||
</head>
|
||
|
||
<body itemscope itemtype="http://schema.org/WebPage">
|
||
<div class="headband"></div>
|
||
|
||
<main class="main">
|
||
<div class="column">
|
||
<header class="header" itemscope itemtype="http://schema.org/WPHeader"><div class="site-brand-container">
|
||
<div class="site-nav-toggle">
|
||
<div class="toggle" aria-label="切换导航栏" role="button">
|
||
<span class="toggle-line"></span>
|
||
<span class="toggle-line"></span>
|
||
<span class="toggle-line"></span>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="site-meta">
|
||
|
||
<a href="/" class="brand" rel="start">
|
||
<i class="logo-line"></i>
|
||
<p class="site-title">大染志</p>
|
||
<i class="logo-line"></i>
|
||
</a>
|
||
<p class="site-subtitle" itemprop="description">Junv's blog</p>
|
||
</div>
|
||
|
||
<div class="site-nav-right">
|
||
<div class="toggle popup-trigger" aria-label="搜索" role="button">
|
||
<i class="fa fa-search fa-fw fa-lg"></i>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<nav class="site-nav">
|
||
<ul class="main-menu menu"><li class="menu-item menu-item-home"><a href="/" rel="section"><i class="fa fa-home fa-fw"></i>首页</a></li><li class="menu-item menu-item-tags"><a href="/tags/" rel="section"><i class="fa fa-tags fa-fw"></i>标签</a></li><li class="menu-item menu-item-archives"><a href="/archives/" rel="section"><i class="fa fa-archive fa-fw"></i>归档</a></li><li class="menu-item menu-item-about"><a href="/about/" rel="section"><i class="fa fa-user fa-fw"></i>关于</a></li>
|
||
<li class="menu-item menu-item-search">
|
||
<a role="button" class="popup-trigger"><i class="fa fa-search fa-fw"></i>搜索
|
||
</a>
|
||
</li>
|
||
</ul>
|
||
</nav>
|
||
|
||
|
||
|
||
<div class="search-pop-overlay">
|
||
<div class="popup search-popup">
|
||
<div class="search-header">
|
||
<span class="search-icon">
|
||
<i class="fa fa-search"></i>
|
||
</span>
|
||
<div class="search-input-container">
|
||
<input autocomplete="off" autocapitalize="off" maxlength="80"
|
||
placeholder="搜索..." spellcheck="false"
|
||
type="search" class="search-input">
|
||
</div>
|
||
<span class="popup-btn-close" role="button">
|
||
<i class="fa fa-times-circle"></i>
|
||
</span>
|
||
</div>
|
||
<div class="search-result-container">
|
||
<div class="search-result-icon">
|
||
<i class="fa fa-spinner fa-pulse fa-5x"></i>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
</header>
|
||
|
||
|
||
<aside class="sidebar">
|
||
|
||
<div class="sidebar-inner sidebar-overview-active">
|
||
<ul class="sidebar-nav">
|
||
<li class="sidebar-nav-toc">
|
||
文章目录
|
||
</li>
|
||
<li class="sidebar-nav-overview">
|
||
站点概览
|
||
</li>
|
||
</ul>
|
||
|
||
<div class="sidebar-panel-container">
|
||
<!--noindex-->
|
||
<div class="post-toc-wrap sidebar-panel">
|
||
</div>
|
||
<!--/noindex-->
|
||
|
||
<div class="site-overview-wrap sidebar-panel">
|
||
<div class="site-author animated" itemprop="author" itemscope itemtype="http://schema.org/Person">
|
||
<img class="site-author-image" itemprop="image" alt="Junv"
|
||
src="/images/avatar.gif">
|
||
<p class="site-author-name" itemprop="name">Junv</p>
|
||
<div class="site-description" itemprop="description">分享编程、运维、生活与思考</div>
|
||
</div>
|
||
<div class="site-state-wrap animated">
|
||
<nav class="site-state">
|
||
<div class="site-state-item site-state-posts">
|
||
<a href="/archives/">
|
||
<span class="site-state-item-count">310</span>
|
||
<span class="site-state-item-name">日志</span>
|
||
</a>
|
||
</div>
|
||
<div class="site-state-item site-state-tags">
|
||
<a href="/tags/">
|
||
<span class="site-state-item-count">249</span>
|
||
<span class="site-state-item-name">标签</span></a>
|
||
</div>
|
||
</nav>
|
||
</div>
|
||
<div class="links-of-author animated">
|
||
<span class="links-of-author-item">
|
||
<a href="https://github.com/wahyd4" title="GitHub → https://github.com/wahyd4" rel="noopener me" target="_blank"><i class="fab fa-github fa-fw"></i>GitHub</a>
|
||
</span>
|
||
</div>
|
||
<div class="cc-license animated" itemprop="license">
|
||
<a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" class="cc-opacity" rel="noopener" target="_blank"><img src="https://cdnjs.cloudflare.com/ajax/libs/creativecommons-vocabulary/2020.11.3/assets/license_badges/small/by_nc_sa.svg" alt="Creative Commons"></a>
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</aside>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="main-inner post posts-expand">
|
||
|
||
|
||
|
||
|
||
|
||
<div class="post-block">
|
||
|
||
|
||
|
||
<article itemscope itemtype="http://schema.org/Article" class="post-content" lang="zh-CN">
|
||
<link itemprop="mainEntityOfPage" href="https://toozhao.com/2012/07/10/a-simple-nodejs-program/">
|
||
|
||
<span hidden itemprop="author" itemscope itemtype="http://schema.org/Person">
|
||
<meta itemprop="image" content="/images/avatar.gif">
|
||
<meta itemprop="name" content="Junv">
|
||
</span>
|
||
|
||
<span hidden itemprop="publisher" itemscope itemtype="http://schema.org/Organization">
|
||
<meta itemprop="name" content="大染志">
|
||
<meta itemprop="description" content="分享编程、运维、生活与思考">
|
||
</span>
|
||
|
||
<span hidden itemprop="post" itemscope itemtype="http://schema.org/CreativeWork">
|
||
<meta itemprop="name" content="一个Nodejs写的简易订饭程序 | 大染志">
|
||
<meta itemprop="description" content="">
|
||
</span>
|
||
<header class="post-header">
|
||
<h1 class="post-title" itemprop="name headline">
|
||
一个Nodejs写的简易订饭程序
|
||
</h1>
|
||
|
||
<div class="post-meta-container">
|
||
<div class="post-meta">
|
||
<span class="post-meta-item">
|
||
<span class="post-meta-item-icon">
|
||
<i class="far fa-calendar"></i>
|
||
</span>
|
||
<span class="post-meta-item-text">发表于</span>
|
||
|
||
<time title="创建时间：2012-07-11 00:00:00" itemprop="dateCreated datePublished" datetime="2012-07-11T00:00:00+10:00">2012-07-11</time>
|
||
</span>
|
||
<span class="post-meta-item">
|
||
<span class="post-meta-item-icon">
|
||
<i class="far fa-calendar-check"></i>
|
||
</span>
|
||
<span class="post-meta-item-text">更新于</span>
|
||
<time title="修改时间：2026-08-11 22:22:51" itemprop="dateModified" datetime="2026-08-11T22:22:51+10:00">2026-08-11</time>
|
||
</span>
|
||
|
||
|
||
</div>
|
||
|
||
</div>
|
||
</header>
|
||
|
||
|
||
|
||
|
||
<div class="post-body" itemprop="articleBody"><p>因为公司最近开始不统一订饭了，但是我那么点工资到下面食堂去吃，既贵也吃不好，其他那些没工资的实训的同学就更伤不起了。为了脱离机械式的让每个人在纸上写上自己的名字。我用nodejs写了一个简单的程序来完成在网上订饭的功能。用户只需要进入网址。即可以完成订饭。这个程序是用nodejs+mysql完成的。使用了nodejs的 express和mysql包</p>
|
||
<p>使用下面的命令即可安装：</p>
|
||
<figure class="highlight xml"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">npm install express</span><br><span class="line"></span><br><span class="line">npm install mysql</span><br></pre></td></tr></table></figure>
|
||
|
||
<p>下面就附上代码吧，只有50多行，当然功能也很简单，只有订饭和查询所有已订饭的功能：</p>
|
||
<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br></pre></td><td class="code"><pre><span class="line">var express = require('express'),</span><br><span class="line"> mysql = require('mysql');</span><br><span class="line">var app = express.createServer();</span><br><span class="line">//create mysql client</span><br><span class="line">var client = mysql.createClient({</span><br><span class="line"> user:'root',</span><br><span class="line"> password :'root'</span><br><span class="line">});</span><br><span class="line">//设置mysql属性</span><br><span class="line">client.host ='127.0.0.1';</span><br><span class="line">client.port = 3306;</span><br><span class="line">client.database = 'orderfood';</span><br><span class="line">//拦截地址</span><br><span class="line">app.get('/add/:name',function(req,res){</span><br><span class="line"> var name = req.params.name;</span><br><span class="line"></span><br><span class="line"> res.charset = 'utf-8';</span><br><span class="line"> //查询数据库中是否已经有该用户的记录</span><br><span class="line"> client.query('select * from orders where name= ?',[name],function(err,results,fields){</span><br><span class="line"> if(err) throw err;</span><br><span class="line"> //阻止用户多次提交</span><br><span class="line"> if(results[0]!==undefined){</span><br><span class="line"> res.send('哈哈，'+results[0].name+'小子！你想重复提交吗？没门！！\n');</span><br><span class="line"> return ;</span><br><span class="line"> }else{</span><br><span class="line"> //将数据存入数据库中</span><br><span class="line"> client.query('insert into orders(name) values(?)',[name],function(err,results,fileds){</span><br><span class="line"> if(err) throw err;</span><br><span class="line"> console.log("你的名字为"+name);</span><br><span class="line"> res.write("恭喜你订餐成功！你的名字为"+name +"\n");</span><br><span class="line"> });</span><br><span class="line"> client.query('select * from orders',function(err,results,fileds){</span><br><span class="line"> if(err) throw err;</span><br><span class="line"> if(results[0]!==undefined){</span><br><span class="line"> var count=0;</span><br><span class="line"> res.write("=================已定名单====================\n");</span><br><span class="line"> for(var i=0;i</span><br></pre></td></tr></table></figure>
|
||
|
||
<p>格式可能有点问题哈。</p>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
<footer class="post-footer">
|
||
|
||
|
||
<div class="post-copyright">
|
||
<ul>
|
||
<li class="post-copyright-author">
|
||
<strong>本文作者： </strong>Junv
|
||
</li>
|
||
<li class="post-copyright-link">
|
||
<strong>本文链接：</strong>
|
||
<a href="https://toozhao.com/2012/07/10/a-simple-nodejs-program/" title="一个Nodejs写的简易订饭程序">https://toozhao.com/2012/07/10/a-simple-nodejs-program/</a>
|
||
</li>
|
||
<li class="post-copyright-license">
|
||
<strong>版权声明： </strong>本博客所有文章除特别声明外，均采用 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" rel="noopener" target="_blank"><i class="fab fa-fw fa-creative-commons"></i>BY-NC-SA</a> 许可协议。转载请注明出处！
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
|
||
<div class="post-tags">
|
||
<a href="/tags/mysql/" rel="tag"># mysql</a>
|
||
<a href="/tags/expressjs/" rel="tag"># expressjs</a>
|
||
<a href="/tags/nodejs/" rel="tag"># nodejs</a>
|
||
</div>
|
||
|
||
|
||
|
||
<div class="post-nav">
|
||
<div class="post-nav-item">
|
||
<a href="/2012/07/04/access-google-reader/" rel="prev" title="解决不能访问google reader">
|
||
<i class="fa fa-angle-left"></i> 解决不能访问google reader
|
||
</a>
|
||
</div>
|
||
<div class="post-nav-item">
|
||
<a href="/2012/07/12/compare-priority-of-maven-repository/" rel="next" title="深入比较几种maven仓库的优先级">
|
||
深入比较几种maven仓库的优先级 <i class="fa fa-angle-right"></i>
|
||
</a>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
</article>
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
</main>
|
||
|
||
<footer class="footer">
|
||
<div class="footer-inner">
|
||
|
||
<div class="copyright">
|
||
© 2012 –
|
||
<span itemprop="copyrightYear">2026</span>
|
||
<span class="with-love">
|
||
<i class="fa fa-heart"></i>
|
||
</span>
|
||
<span class="author" itemprop="copyrightHolder">Junv</span>
|
||
</div>
|
||
<div class="powered-by">由 <a href="https://hexo.io/" rel="noopener" target="_blank">Hexo</a> & <a href="https://theme-next.js.org/muse/" rel="noopener" target="_blank">NexT.Muse</a> 强力驱动
|
||
</div>
|
||
|
||
</div>
|
||
</footer>
|
||
|
||
|
||
<div class="toggle sidebar-toggle" role="button">
|
||
<span class="toggle-line"></span>
|
||
<span class="toggle-line"></span>
|
||
<span class="toggle-line"></span>
|
||
</div>
|
||
<div class="sidebar-dimmer"></div>
|
||
<div class="back-to-top" role="button" aria-label="返回顶部">
|
||
<i class="fa fa-arrow-up fa-lg"></i>
|
||
<span>0%</span>
|
||
</div>
|
||
<div class="reading-progress-bar"></div>
|
||
<a role="button" class="book-mark-link book-mark-link-fixed"></a>
|
||
|
||
<noscript>
|
||
<div class="noscript-warning">Theme NexT works best with JavaScript enabled</div>
|
||
</noscript>
|
||
<script src="/js/tag-cloud.js"></script>
|
||
<script>
|
||
/* =========================================================
|
||
阅读设置面板（Aa 按钮）— 参考 Links Reading settings
|
||
支持：背景主题 / 字体类型 / 字号 / 行距 / 重置，localStorage 记忆
|
||
========================================================= */
|
||
(function () {
|
||
'use strict';
|
||
var LS_KEY = 'toozhao-reading';
|
||
var state = { theme: 'light', font: 'system', size: 1.05, spacing: 'cozy' };
|
||
|
||
var FONTS = {
|
||
system: '', /* 默认（Linux 系统字体） */
|
||
serif: 'Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif',
|
||
sans: '"Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", "WenQuanYi Micro Hei", sans-serif',
|
||
kai: '"KaiTi", "STKaiti", "Kaiti SC", "AR PL UKai CN", serif',
|
||
mono: 'SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace'
|
||
};
|
||
var THEMES = { light: '明亮', paper: '纸感', green: '护眼', night: '夜间' };
|
||
var SPACING = {
|
||
compact: { label: '紧凑', lh: 1.6 },
|
||
cozy: { label: '舒适', lh: 1.9 },
|
||
relaxed: { label: '宽松', lh: 2.3 }
|
||
};
|
||
|
||
function loadState() {
|
||
try {
|
||
var raw = localStorage.getItem(LS_KEY);
|
||
if (!raw) return;
|
||
var s = JSON.parse(raw);
|
||
if (THEMES[s.theme]) state.theme = s.theme;
|
||
if (FONTS.hasOwnProperty(s.font)) state.font = s.font;
|
||
if (typeof s.size === 'number' && s.size >= 0.8 && s.size <= 1.5) state.size = s.size;
|
||
if (SPACING[s.spacing]) state.spacing = s.spacing;
|
||
} catch (e) { /* ignore */ }
|
||
}
|
||
|
||
function saveState() {
|
||
try { localStorage.setItem(LS_KEY, JSON.stringify(state)); } catch (e) { /* ignore */ }
|
||
}
|
||
|
||
function buildUI() {
|
||
if (document.getElementById('reading-toggle')) return;
|
||
|
||
var toggle = document.createElement('button');
|
||
toggle.id = 'reading-toggle';
|
||
toggle.className = 'reading-toggle';
|
||
toggle.title = '阅读设置';
|
||
toggle.textContent = 'Aa';
|
||
document.body.appendChild(toggle);
|
||
|
||
var panel = document.createElement('div');
|
||
panel.id = 'reading-panel';
|
||
panel.className = 'reading-panel';
|
||
|
||
// 主题（swatch 全部为硬编码静态 HTML，无用户输入，安全）
|
||
var rowT = document.createElement('div');
|
||
rowT.className = 'rp-row';
|
||
rowT.innerHTML = '<h4>主题</h4><div class="rp-themes">' +
|
||
['light', 'paper', 'green', 'night'].map(function (t) {
|
||
return '<button class="sw sw-' + t + '" data-theme="' + t + '" title="' + THEMES[t] + '"><span></span>' + THEMES[t] + '</button>';
|
||
}).join('') + '</div>';
|
||
|
||
var rowF = document.createElement('div');
|
||
rowF.className = 'rp-row';
|
||
rowF.innerHTML = '<h4>字体</h4><div class="rp-fonts">' +
|
||
['system', 'serif', 'sans', 'kai', 'mono'].map(function (f) {
|
||
var label = { system: '系统', serif: '宋体', sans: '黑体', kai: '楷体', mono: '等宽' }[f];
|
||
return '<button data-font="' + f + '">' + label + '</button>';
|
||
}).join('') + '</div>';
|
||
|
||
var rowS = document.createElement('div');
|
||
rowS.className = 'rp-row';
|
||
rowS.innerHTML = '<h4>字号</h4><div class="rp-size">' +
|
||
'<button class="rp-minus" title="减小">A−</button><span class="rp-size-val">17px</span><button class="rp-plus" title="增大">A+</button></div>';
|
||
|
||
var rowSp = document.createElement('div');
|
||
rowSp.className = 'rp-row';
|
||
rowSp.innerHTML = '<h4>行距</h4><div class="rp-spacing">' +
|
||
['compact', 'cozy', 'relaxed'].map(function (s) {
|
||
return '<button data-spacing="' + s + '">' + SPACING[s].label + '</button>';
|
||
}).join('') + '</div>';
|
||
|
||
var reset = document.createElement('button');
|
||
reset.className = 'rp-reset';
|
||
reset.textContent = '↺ 恢复默认';
|
||
reset.addEventListener('click', function () {
|
||
state = { theme: 'light', font: 'system', size: 1.05, spacing: 'cozy' };
|
||
saveState();
|
||
apply();
|
||
render();
|
||
});
|
||
|
||
panel.appendChild(rowT);
|
||
panel.appendChild(rowF);
|
||
panel.appendChild(rowS);
|
||
panel.appendChild(rowSp);
|
||
panel.appendChild(reset);
|
||
document.body.appendChild(panel);
|
||
|
||
toggle.addEventListener('click', function (e) {
|
||
e.stopPropagation();
|
||
panel.classList.toggle('open');
|
||
toggle.classList.toggle('active', panel.classList.contains('open'));
|
||
});
|
||
panel.addEventListener('click', function (e) { e.stopPropagation(); });
|
||
|
||
panel.querySelectorAll('.sw').forEach(function (b) {
|
||
b.addEventListener('click', function () { state.theme = b.dataset.theme; saveState(); apply(); render(); });
|
||
});
|
||
panel.querySelectorAll('.rp-fonts button').forEach(function (b) {
|
||
b.addEventListener('click', function () { state.font = b.dataset.font; saveState(); apply(); render(); });
|
||
});
|
||
panel.querySelectorAll('.rp-spacing button').forEach(function (b) {
|
||
b.addEventListener('click', function () { state.spacing = b.dataset.spacing; saveState(); apply(); render(); });
|
||
});
|
||
panel.querySelector('.rp-minus').addEventListener('click', function () {
|
||
state.size = Math.max(0.8, +(state.size - 0.05).toFixed(2)); saveState(); apply(); render();
|
||
});
|
||
panel.querySelector('.rp-plus').addEventListener('click', function () {
|
||
state.size = Math.min(1.5, +(state.size + 0.05).toFixed(2)); saveState(); apply(); render();
|
||
});
|
||
|
||
document.addEventListener('click', function (e) {
|
||
if (panel.classList.contains('open') && !panel.contains(e.target) && e.target !== toggle) {
|
||
panel.classList.remove('open');
|
||
toggle.classList.remove('active');
|
||
}
|
||
});
|
||
document.addEventListener('keydown', function (e) {
|
||
if (e.key === 'Escape' && panel.classList.contains('open')) {
|
||
panel.classList.remove('open');
|
||
toggle.classList.remove('active');
|
||
}
|
||
});
|
||
}
|
||
|
||
function apply() {
|
||
var body = document.body;
|
||
var pb = document.querySelector('.post-body');
|
||
|
||
body.setAttribute('data-rtheme', state.theme);
|
||
if (pb) {
|
||
pb.style.fontFamily = FONTS[state.font] || '';
|
||
pb.style.fontSize = state.size + 'em';
|
||
pb.style.lineHeight = SPACING[state.spacing].lh;
|
||
}
|
||
}
|
||
|
||
function render() {
|
||
var panel = document.getElementById('reading-panel');
|
||
if (!panel) return;
|
||
|
||
panel.querySelectorAll('.sw').forEach(function (b) {
|
||
b.classList.toggle('active', b.dataset.theme === state.theme);
|
||
});
|
||
panel.querySelectorAll('.rp-fonts button').forEach(function (b) {
|
||
b.classList.toggle('active', b.dataset.font === state.font);
|
||
});
|
||
panel.querySelectorAll('.rp-spacing button').forEach(function (b) {
|
||
b.classList.toggle('active', b.dataset.spacing === state.spacing);
|
||
});
|
||
var val = panel.querySelector('.rp-size-val');
|
||
if (val) val.textContent = Math.round(16 * state.size) + 'px';
|
||
}
|
||
|
||
function init() {
|
||
loadState();
|
||
buildUI();
|
||
apply();
|
||
render();
|
||
}
|
||
|
||
if (document.readyState === 'loading') {
|
||
document.addEventListener('DOMContentLoaded', init);
|
||
} else {
|
||
init();
|
||
}
|
||
})();
|
||
</script>
|
||
|
||
</body>
|
||
</html>
|