[英]'content-type': 'text/html' not accepted until server is killed
我有一個簡單的html頁面,正在嘗試通過node提供服務。
當我將內容類型設置為text / plain時,將加載html文件的純文本。 但是,當我將其更改為“ content-type”:“ text / html”時,瀏覽器選項卡將持續加載而不進行更新。 一旦我殺死了該節點應用程序,瀏覽器就會顯示該頁面,就像頁面已完全加載一樣。
服務器代碼:
var http = require('http');
var query = require('querystring');
var fs = require('fs');
http.createServer(function (req, res) {
homeRoute(req,res)
}).listen(3000);
console.log('test');
function homeRoute(req, res) {
if (req.url === '/') {
var html = fs.readFileSync('./Index.html', {encoding: 'utf-8'});
res.writeHead(200, {"Content-Type": "text/html"});
console.log(html)
res.write(html);
res.end();
}
指數:
<DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Corporate Ipsum</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.5/css/bootstrap.min.css" integrity="sha384-AysaV+vQoT3kOAXZkl02PThvDr8HYKPZhNT5h/CXfBThSRXQ6jW5DO2ekP5ViFdi" crossorigin="anonymous">
<link rel="stylesheet" href="https://necolas.github.io/normalize.css/5.0.0/normalize.css">
<link rel="stylesheet" href="css/main.css"> </head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="src/app.js"></script>
<body>
<div class="container my-3">
<div class="col-sm-2">
<form method="post" action="/data" class="form-group">
<label for="sentenceCount">Sentences</label>
<input type="number" placeholder="10" name="sentencecount" id="sentenceCount" class="form-control parameters">
<button type="button" id="submit" class="btn btn-primary mt-1">Submit</button>
</form>
</div>
</div>
<div class="container mt-2" style="border:1px solid red">
</body> </html>
您需要添加Content-Length
標頭,以便瀏覽器知道文件何時結束。 您可以通過如下修改代碼來實現:
function homeRoute(req, res) {
if (req.url === '/') {
var html = fs.readFileSync('./Index.html'); // read this as a buffer
res.writeHead(200, {"Content-Type": "text/html", "Content-Length": html.length}); // write the buffer's length
console.log(html.toString('utf8')) // but when logging/writing explicitely say utf8
res.write(html.toString('utf8')); // you can remove the toString here, but it adds a little readability
res.end();
}
Node.js文檔在res.writeHead的底部有些提及: https ://nodejs.org/api/http.html#http_response_writehead_statuscode_statusmessage_headers
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