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nodejs and vue build services

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Release： 2023-05-25 15:51:08

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In today's Web development world, JavaScript has become a mainstream language. It can not only be executed on the browser side, but also provide powerful support on the server side. Node.js is an open source back-end JavaScript running environment built on the Chrome V8 engine, while Vue is a lightweight, high-performance, easy-to-use UI framework. In this article, we will introduce how to use Node.js and Vue to build a server and write some simple sample code.

1. Install Node.js

First, we need to install the Node.js environment locally. The installation of Node.js is very simple, just download the installation package and follow the prompts to install it. After the installation is complete, open the terminal and enter the node –v command to check the version number of Node.js to ensure that Node.js can run normally.

2. Create a project

Open the terminal and enter a suitable working directory, for example:

$ mkdir my-project
$ cd my-project

In the project root directory, create the package.json file:

$ npm init

Fill in the project information as prompted. This file will record our dependencies and project configuration.

3. Install Vue

Enter the following command in the terminal:

$ npm install vue

After the installation is completed, we create a file named For the index.html file, then introduce Vue's CDN:

<title>My Vue App</title>
<script src="https://cdn.jsdelivr.net/npm/vue"></script>

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<div id="app">
    {{ message }}
</div>
<script>
    var app = new Vue({
        el: '#app',
        data: {
            message: 'Hello, Vue!'
        }
    });
</script>

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In this sample code, we use Vue to dynamically render the view and add a Data is bound into the template. Vue's data binding syntax is very concise. Use {{ }} to bind data to the template, so that we can update the content displayed by the template at runtime.

4. Build Node.js service

Next, we use Node.js to build a service. In the project root directory, create a file called server.js and enter the following code in it:

const http = require('http');

const server = http. createServer((req, res) => {

res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello, World!

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');
});

server.listen(3000, () => {

console.log('Server running at http://localhost:3000/');

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});

This code snippet creates a simple HTTP server and listens on port 3000. We can use the http module provided by Node.js itself to create and manage servers. This module provides some common APIs for the HTTP protocol, such as createServer, listen, etc.

5. Embed the Vue application into the service

Now, we will embed the Vue application into our service. We add the following code to the index.html file:

<head>
    <title>My Vue App</title>
    <script src="https://cdn.jsdelivr.net/npm/vue"></script>
</head>
<body>
    <div id="app">
        {{ message }}
    </div>
    <script>
        var app = new Vue({
            el: '#app',
            data: {
                message: 'Hello, Vue!'
            }
        });
    </script>
</body>

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现在，我们需要将这个文件作为我们的服务的响应。修改server.js文件如下：

const http = require('http');
const fs = require('fs');

const server = http.createServer((req, res) => {
    res.statusCode = 200;
    res.setHeader('Content-Type', 'text/html');
    fs.readFile('index.html', (err, data) => {
        if (err) throw err;
        res.end(data);
    });
});

server.listen(3000, () => {
    console.log('Server running at http://localhost:3000/');
});

这个修改后的代码片段会读取index.html文件，并将其发送到客户端。这样，我们的服务就能够将Vue应用呈现到用户的浏览器中。

6、总结

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