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Home PHP Framework Laravel How to use Laravel to implement separate deployment of front-end and back-end

How to use Laravel to implement separate deployment of front-end and back-end

Apr 23, 2023 am 09:17 AM

In today's Internet world, software services with Web applications as the core are becoming more and more popular. Among them, the Laravel framework, as an excellent development framework for PHP language, not only has efficient performance, but also has a series of advantages such as friendly development experience, rich open source community, powerful ORM and migration system. In Laravel's back-end development, the development model of front-end and back-end separation has gradually become popular recently. This article will introduce how to use Laravel to achieve separate deployment of front-end and back-end.

1. What is front-end and back-end separation

Front-end and front-end separation is a new way of developing web applications, which completely separates the front-end and back-end from a technical perspective. The front-end program is responsible for generating the interface and communicating with the server to obtain data, while the background program is responsible for processing business logic and accessing the database.

This approach has many benefits. First, it can improve the efficiency of front-end and back-end development. Front-end and back-end developers can develop in parallel, reducing dependence on each other; secondly, it can improve application performance. Since front-end and back-end services can be deployed and expanded separately, the overall performance of the system can be greatly improved. In addition, this approach allows both front-end and back-end developers to focus on their respective areas as much as possible, improving code quality and maintainability.

2. Implementation of front-end and back-end separation in Laravel

In Laravel development, the implementation of front-end and back-end separation requires the use of some front-end frameworks. Among them, we can use mainstream frameworks such as Vue.js, React or Angular as front-end development solutions. In Laravel, we can use the following two methods to achieve the separation of front-end and back-end.

  1. Create a new front-end project

We can create an independent front-end project first, and then interact with the Laravel backend through the API. In this mode, Laravel is only responsible for writing the back-end data API interface, and the front-end uses AJAX or Fetch API to request the back-end data interface. The front-end and back-end codes can be deployed on different servers or ports.

The advantage of this approach is that the separation between the front-end and the back-end is very high. Developers can give full play to their respective advantages while also improving the performance of the application. You can also use some modern front-end frameworks and tools to improve development efficiency and development experience.

The following is a simple example to demonstrate the implementation of this method. Let's take Laravel as the backend and Vue.js as the frontend as an example:

1.1 Create a new Laravel project

First, we need to create a new Laravel project in the command line:

composer?create-project?--prefer-dist?laravel/laravel?blog

1.2 Create a new Vue.js project

Next, we need to create a new Vue.js project:

npm?install?-g?vue-cli
vue?init?webpack?frontend

1.3 Configure Laravel and Vue.js

Next, we need to configure the routes/api.php file to respond to requests from the Vue.js front-end.

Route::get('/todos',?function?()?{
????return?App\Todo::all();
});

In frontend/src/App.vue we can use Axios or any other AJAX library to get the backend API. In this example we will use the Axios library.

<template>
??<div class="todo-list">
????<div class="todo" v-for="todo in todos" :key="todo.id">
??????<input type="checkbox" :checked="todo.completed" @change="toggle(todo)">
??????<label>{{?todo.title?}}</label>
????</div>
??</div>
</template>

<script>
import?axios?from?'axios'

export?default?{
??data?()?{
????return?{
??????todos:?[]
????}
??},
??created?()?{
????axios.get('/api/todos')
??????.then(response?=>?{
????????this.todos?=?response.data
??????})
??????.catch(error?=>?{
????????console.log(error)
??????})
??},
??methods:?{
????toggle?(todo)?{
??????todo.completed?=?!todo.completed
??????axios.put('/api/todos/'?+?todo.id,?todo)
????????.then(response?=>?{})
????????.catch(error?=>?{
??????????console.log(error)
????????})
????}
??}
}
</script>

In frontend/config/index.js we can set the Vue.js frontend to use a different port than the Laravel backend. We can then run and access the application.

php?artisan?serve?--port=8000
cd?frontend
npm?start
  1. Use Laravel Mix to package front-end projects

Another way is to package the front-end code and Laravel back-end code into the same project for deployment. In this mode, Laravel Mix is ??used as a tool for building front-end applications. Laravel Mix is ??a simplified Webpack build tool that allows us to easily package front-end resources.

The advantage of this method is that the front-end and back-end codes will be packaged into a whole, which is convenient for deployment and maintenance. We can use commands similar to npm run dev and npm run build to compile the front-end code and place the compilation results in Laravel's public directory so that we can view them through the browser Access the application directly.

The following is a simple example to demonstrate the implementation of this method:

2.1 Create a new Laravel project

First, we need to create a new Laravel project in the command line Laravel Project:

composer?create-project?--prefer-dist?laravel/laravel?blog

2.2 Install Node.js and NPM

In the next steps, we need to install Node.js and NPM.

In Ubuntu, you can use the following command to install:

sudo?apt-get?install?nodejs
sudo?apt-get?install?npm

2.3 Install Laravel Mix in Laravel

Then, we need to install Laravel Mix:

npm?install?--save-dev?laravel-mix

Then, we need to execute the following command to generate the webpack.mix.js configuration file:

node_modules/.bin/mix

2.4 Write the front-end code

Next, we need to write the front-end code. For example, we can write some JavaScript code in the resources/assets/js/app.js file. The following is a simple example:

"use?strict";

window.Vue?=?require('vue');

Vue.component('example-component',?require('./components/ExampleComponent.vue'));

const?app?=?new?Vue({
????el:?'#app'
});

2.5 Writing front-end resources

We can put the front-end resource files in the resources/assets directory. For example, we can write some CSS styles in resources/assets/sass/app.scss.

html,?body?{
??height:?100%;
??margin:?0;
}

#app?{
??display:?flex;
??align-items:?center;
??justify-content:?center;
??height:?100%;
}

.title?{
??font-size:?24px;
??text-align:?center;
}

2.6 Configuring Laravel Mix

我們需要在 webpack.mix.js 文件中配置 Laravel Mix。例如,我們可以使用 .sass() 方法來生成 CSS 文件,并使用 .js() 方法來生成 JavaScript 文件:

const?mix?=?require('laravel-mix');

mix.js('resources/assets/js/app.js',?'public/js')
???.sass('resources/assets/sass/app.scss',?'public/css');

2.7 編譯前端資源

接下來,我們可以運行以下命令來編譯前端資源:

npm?run?dev

npm?run?watch

這樣,我們就可以在瀏覽器中看到我們的應用程序了。

  1. 部署應用程序

無論我們使用哪種方式來實現前后端分離,最終都需要進行部署。我們可以使用第三方工具如 Jenkins、Capistrano 和 Docker Compose 等來自動化部署。這里介紹一種基于 NGINX + PHP-FPM + MySQL 的部署方式。

3.1 安裝服務

首先,我們需要安裝 NGINX、PHP-FPM 和 MySQL。我們可以使用以下命令在 Ubuntu 中進行安裝:

sudo?apt-get?install?nginx
sudo?apt-get?install?mysql-server
sudo?apt-get?install?php-fpm

3.2 配置 NGINX

接下來,我們需要配置 NGINX。我們可以在 /etc/nginx/sites-available 目錄下創(chuàng)建一個新的配置文件。以下是配置文件的示例:

server?{
????listen?80;
????server_name?yourdomain.com;

????root?/var/www/public;

????index?index.php;

????location?/?{
????????try_files?$uri?$uri/?/index.php?$query_string;
????}

????location?~?/\.?{
????????deny?all;
????}

????location?~?\.php$?{
????????fastcgi_pass?unix:/run/php/php7.4-fpm.sock;
????????fastcgi_split_path_info?^(.+\.php)(/.+)$;
????????include?fastcgi_params;
????????fastcgi_param?SCRIPT_FILENAME?$document_root$fastcgi_script_name;
????????fastcgi_param?PATH_INFO?$fastcgi_path_info;
????????internal;
????}
}

我們需要將我們的代碼放置在 /var/www/public 目錄中。例如,我們使用前兩種方式中的第一種方式,代碼存放在了一個 獨立的前端項目 中。我們可以使用以下命令將編譯好的前端代碼復制到 /var/www/public 目錄中:

cp?-r?/path/to/frontend/dist/*?/var/www/public

3.3 配置 MySQL

接下來,我們需要配置 MySQL。我們可以使用以下命令進行安全設置:

sudo?mysql_secure_installation

然后,我們可以創(chuàng)建一個新的 MySQL 數據庫:

CREATE?DATABASE?dbname?CHARACTER?SET?utf8mb4?COLLATE?utf8mb4_unicode_ci;
CREATE?USER?'dbuser'@'localhost'?IDENTIFIED?BY?'dbpassword';
GRANT?ALL?PRIVILEGES?ON?dbname.*?TO?'dbuser'@'localhost';

在 Laravel 的 .env 配置文件中,我們需要進行如下數據庫配置:

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=dbname
DB_USERNAME=dbuser
DB_PASSWORD=dbpassword

3.4 執(zhí)行數據庫遷移

接下來,我們需要執(zhí)行 Laravel 數據庫遷移,并進行一些初始化操作:

php?artisan?migrate
php?artisan?db:seed
php?artisan?key:generate

3.5 重啟服務

最后,我們需要重啟 NGINX 和 PHP-FPM 服務,使配置生效:

sudo?systemctl?restart?nginx
sudo?systemctl?restart?php7.4-fpm

至此,我們可以通過瀏覽器訪問我們的應用程序,Laravel 前后端分離部署就完成了。

三、結論

本文介紹了使用 Laravel 實現前后端分離部署的兩種方式:創(chuàng)建一個新的前端項目和使用 Laravel Mix 打包前端項目兩種方式。當然,對于前端開發(fā)人員來說,也可以選擇自己熟悉的框架、編程語言來進行前端開發(fā),只需要遵循前后端分離的原則即可??傊?,Laravel 的靈活性使得它可以與許多現代前端框架和工具配合使用,讓開發(fā)人員可以更自由地選擇適合自己的開發(fā)方式。

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