留言板
基于nodejs+express+art-template的留言板功能，包含串列界面、添加界面和發送留言功能，
所需類別庫
直接copy以下package.json 然后直接 npm install 或者yarn install 即可，
package.json所需內容如下，
{
"name": "nodejs_message_board",
"version": "2021.09",
"private": true,
"scripts": {
"start": "node app"
},
"dependencies": {
"art-template": "^4.13.2",
"debug": "~2.6.9",
"express": "~4.16.1",
"express-art-template": "^1.0.1"
}
}
開源專案
本專案收錄在【Node.js Study】nodejs開源學習專案 中的express_message_board ，歡迎大家學習和下載，
運行效果
- localhost ，留言首頁
- localhost/post ，添加留言頁面
- localhost/say?name=xxx&message=xxx ，發送留言并重定向到首頁功能
專案結構
index.html
這是留言串列，也是首頁，根據傳過來的值渲染串列，
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>留言板</title>
<link rel="stylesheet" href="/public/css/bootstrap4.css">
</head>
<body>
<div class="header container">
<div class="page-header">
<h1>留言板 <small>留言串列</small></h1>
<a class="btn btn-success" href="/post">發表留言</a>
</div>
</div>
<div class="comments container">
<ul class="list-group">
{{each comments}}
<li class="list-group-item">
{{$value.name}}說: {{$value.message}}
<span class="pull-right">{{$value.datetime}}</span>
</li>
{{/each}}
</ul>
</div>
</body>
</html>
post.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>留言板</title>
<link rel="stylesheet" href="/public/css/bootstrap4.css">
</head>
<body>
<div class="header container">
<div class="page-header">
<h1><a href="/" >留言板 <small>添加留言</small></a></h1>
</div>
</div>
<div class="comments container">
<form action="/say" method="GET">
<div class="form-group">
<label for="name">你的大名</label>
<input type="text" id="name" name="name" class="form-control" placeholder="請輸入姓名" required minlength="2" maxlength="10">
</div>
<div class="form-group">
<label for="message">留言內容</label>
<textarea id="message" name="message" class="form-control" placeholder="請輸入留言內容" cols='30' rows='10' required minlength="5" maxlength="20"></textarea>
</div>
<button type="submit" class="btn btn-default">發表</button>
</form>
</div>
</body>
</html>
route/index.js
這里是路由器
const express = require('express');
const router = express.Router();
// 模擬首頁留言串列資料
var comments= {"comments":[
{name:"AAA",message:"你用什么編輯器？WebStorem or VSCODE",datetime:"2021-1-1"},
{name:"BBB",message:"今天天氣真好?釣魚or代碼",datetime:"2021-1-1"},
{name:"Moshow",message:"zhengkai.blog.csdn.net",datetime:"2021-1-1"},
{name:"DDD",message:"哈與哈哈與哈哈哈的區別",datetime:"2021-1-1"},
{name:"EEE",message:"王守義十三香還是iphone十三香",datetime:"2021-1-1"}
]}
/* by zhengkai.blog.csdn.net - 靜態路由托管 */
router.get('/', function(req, res, next) {
res.render('index', comments);
});
router.get('/post', function(req, res, next) {
res.render('post', comments);
});
router.get('/say', function(req, res, next) {
console.log(req.query)
console.log(req.url)
const comment=req.query;
comment.datetime='2021-10-01';
comments.comments.unshift(comment);
//重定向到首頁，沒有url后綴 localhost
res.redirect('/');
//直接渲染首頁，有url后綴 localhost/say?xxxx=xxx
//res.render('index', comments);
});
module.exports = router;
app.js
這里作為總控制
//加載模塊
const http=require('http');
const fs=require('fs');
const url=require('url');
const template=require('art-template');
const path = require('path');
const express = require('express');
const router = express.Router();
const app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'html');
app.engine('html',require('express-art-template'));
app.use('/public',express.static(path.join(__dirname, 'public')));
const indexRouter = require('./routes/index');
app.use('/', indexRouter);
//創建監聽物件
app.listen(80,function(){
console.log('zhengkai.blog.csdn.net 專案啟動成功 http://localhost')
})
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標籤：其他