Node.js：无法获得/

Question

I'm trying to write a simple web page. 我正在尝试编写一个简单的网页。 It's based on 2 html and a index.js. 它基于2个html和一个index.js。 I'm using nodejs and express for routing. 我正在使用nodejs并表达路由。 When I launch with 当我启动

node index.js 节点index.js

it seems to work fine, until I get to the browser and go to 似乎工作正常，直到我进入浏览器并转到

localhost:8080/ 本地主机：8080 /

then the browser tells me 然后浏览器告诉我

cannot get / 不能获取 /

No error is displayed in the terminal nor in the console of both Firefox and Chrome. Firefox和Chrome的终端或控制台中均未显示任何错误。

Here is the code: 这是代码：

index.js index.js

var express=require('express');
var app=express();

app.use(express.static(__dirname+'/public'));

app.get("/", function(req, res){
    res.sendFile(__dirname+"main.html");
});

app.get("/choice/:choice/travel/:travel/name/:name", function(req, res){
    res.sendFile("result.html", {
        choice : req.params.choice,
        travel : req.params.travel,
        name : req.params.name
    });
});

express().listen((process.env.PORT || 8080), function(){
    console.log("Server running at: "+(process.env.PORT || 8080));
});

main.html main.html

<!DOCTYPE html>
<html>
<head>
    <title>Survey Norway</title>
</head>
<body>
<h1>Survey Norway</h1>
<p>The survey is anonymous unless you insert your name<p>
<h2>Would you come to Norway this summer?</h2>
<form action="">
    <input type="radio" name="choice" value="1" onclick="showMore()">Yes<br>
    <input type="radio" name="choice" value="0" onclick="hide()">No
</form>
<div id="mytext" style="display: none;">
    <h2>Which one would you choose?</h2>
    <form action="">
        <input type="radio" name="travel" value="1">Rent a car and travel Europe<br>
        <input type="radio" name="travel" value="2">Fly. <br>
        <input type="radio" name="travel" value="0">Doesn't matter.
    </form>
</div>
<p>If you want insert yor name here:.</p>
<input type="text" name="name">
<center>
    <button onclick="send_()">Send</button>
</center>
</body>
</html>

<script type="text/javascript">
    function showMore (){
        document.getElementById("mytext").style.display="block";
    }
    function hide (){
        document.getElementById("mytext").style.display="none";
    }
    function send_(){
        var choice=document.querySelector('input[name = "choice"]:checked').value;
        var viaggio=0; 
        if (choice==1){
            viaggio=document.querySelector('input[name = "travel"]:checked').value;
        }
        var nome=document.querySelector('input[name = "name"]').value;
        console.log("choice: "+choice+"\ntravel: "+travel+"\nname: "+name);
    }
</script>

Can anyone tell me what I'm doing wrong? 谁能告诉我我在做什么错？

Answer 1

Change this: 更改此：

express().listen(...)

to this: 对此：

app.listen(...)

You were making a new express instance and listening with that one and that's a different instance than the one you put your routes on. 您正在创建一个新的Express实例，并监听该实例，这与您放置路线的实例不同。 So, the server you actually created and started had no routes defined on it. 因此，您实际创建和启动的服务器上没有定义任何路由。

Node.js：无法获得/

问题描述

1 个解决方案

解决方案1
0 已采纳 2018-01-08 16:29:36

Node.js：无法获得/

问题描述

1 个解决方案

解决方案1 0 已采纳 2018-01-08 16:29:36

解决方案1
0 已采纳 2018-01-08 16:29:36