我试图找出如何加载和呈现一个基本的HTML文件,这样我就不必写代码:
response.write('...<p>blahblahblah</p>...');
我试图找出如何加载和呈现一个基本的HTML文件,这样我就不必写代码:
response.write('...<p>blahblahblah</p>...');
当前回答
您可以使用Express使用Node加载和呈现基本的HTML文件。这大约需要10分钟才能开始。它被绑定到http.createServer(),所以你仍然在Node的土地上,可以轻松地删除它。
// app.js
const path = require('path');
const express = require('express');
const app = express();
app.use(express.static(path.join(__dirname, 'public')));
app.use('/', express.static('index.html'));
app.use('/test', express.static('test.html'));
module.exports = app;
// server.js
const http = require('http');
const PORT = process.env.PORT || 3000;
const appServer = require('./app');
const httpServer = http.createServer(appServer);
httpServer.listen(PORT);
console.log(`Listening on port ${PORT}...`);
其他回答
这可能会更好一些,因为您将流式文件而不是像fs.readFile那样将其全部加载到内存中。
var http = require('http');
var fs = require('fs');
var path = require('path');
var ext = /[\w\d_-]+\.[\w\d]+$/;
http.createServer(function(req, res){
if (req.url === '/') {
res.writeHead(200, {'Content-Type': 'text/html'});
fs.createReadStream('index.html').pipe(res);
} else if (ext.test(req.url)) {
fs.exists(path.join(__dirname, req.url), function (exists) {
if (exists) {
res.writeHead(200, {'Content-Type': 'text/html'});
fs.createReadStream('index.html').pipe(res);
} else {
res.writeHead(404, {'Content-Type': 'text/html'});
fs.createReadStream('404.html').pipe(res);
});
} else {
// add a RESTful service
}
}).listen(8000);
增加另一个选项-基于例外的答案。
打字稿:
import { Injectable } from '@nestjs/common';
import { parse } from 'node-html-parser';
import * as fs from 'fs';
import * as path from 'path'
@Injectable()
export class HtmlParserService {
getDocument(id: string): string {
const htmlRAW = fs.readFileSync(
path.join(__dirname, "../assets/files/some_file.html"),
"utf8"
);
const parsedHtml = parse(htmlRAW);
const className = '.'+id;
//Debug
//console.log(parsedHtml.querySelectorAll(className));
return parsedHtml.querySelectorAll(className).toString();
}
}
(*)上面的例子是使用nestjs和node-html-parser。
试试这个:
var http = require('http');
var fs = require('fs');
var PORT = 8080;
http.createServer((req, res) => {
fs.readFile('./' + req.url, (err, data) => {
if (!err) {
var dotoffset = req.url.lastIndexOf('.');
var mimetype = dotoffset == -1 ? 'text/plaint' : {
'.html': 'text/html',
'.css': 'text/css',
'.js': 'text/javascript',
'.jpg': 'image/jpeg',
'.png': 'image/png',
'.ico': 'image/x-icon',
'.gif': 'image/gif'
}[ req.url.substr(dotoffset) ];
res.setHeader('Content-Type', mimetype);
res.end(data);
console.log(req.url, mimetype);
} else {
console.log('File not fount: ' + req.url);
res.writeHead(404, "Not Found");
res.end();
}
});
}).listen(PORT);
有了这个,你可以包括js, css源代码时链接他们,你可以加载图标,imgs, gif。如果你愿意,你可以添加更多。
我知道这是一个老问题——如果你不喜欢使用connect或express,这里有一个简单的文件服务器实用工具;而是HTTP模块。
var fileServer = require('./fileServer');
var http = require('http');
http.createServer(function(req, res) {
var file = __dirname + req.url;
if(req.url === '/') {
// serve index.html on root
file = __dirname + 'index.html'
}
// serve all other files echoed by index.html e.g. style.css
// callback is optional
fileServer(file, req, res, callback);
})
module.exports = function(file, req, res, callback) {
var fs = require('fs')
, ext = require('path').extname(file)
, type = ''
, fileExtensions = {
'html':'text/html',
'css':'text/css',
'js':'text/javascript',
'json':'application/json',
'png':'image/png',
'jpg':'image/jpg',
'wav':'audio/wav'
}
console.log('req '+req.url)
for(var i in fileExtensions) {
if(ext === i) {
type = fileExtensions[i]
break
}
}
fs.exists(file, function(exists) {
if(exists) {
res.writeHead(200, { 'Content-Type': type })
fs.createReadStream(file).pipe(res)
console.log('served '+req.url)
if(callback !== undefined) callback()
} else {
console.log(file,'file dne')
}
})
}
用ejs代替jade
npm 安装 EJS
app.js
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'html');
/线路/ index.js
exports.index = function(req, res){
res.render('index', { title: 'ejs' });};