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Detailed explanation of Grunt plug-in LiveReload to realize automatic page refresh (two options), gruntlivereload_PHP tutorial
Detailed explanation of Grunt plug-in LiveReload to realize automatic page refresh (two options), gruntlivereload_PHP tutorial
Jul 13, 2016 am 09:45 AM
Detailed explanation of Grunt plug-in LiveReload to realize automatic page refresh (two options), gruntlivereload
Option 1: grunt-livereload Chrome Plug-in
Advantages: Installation and configuration are simple and convenient.
Disadvantages: Need to cooperate with specified browser plug-ins (Firefox also has related plug-ins, IE you know).
1. 2 plug-ins need to be installed: grunt-contrib-watch, connect-livereload
Execute command:
Copy code The code is as follows:
npm install --save-dev grunt-contrib-watch connect-livereload
2. Install browser plug-in: Chrome LiveReload
3. Configure a web server (IIS/Apache), LiveReload needs to run in the local server environment (support for file:/// file path is not very good).
4. Modify the Gruntfile.js file:
module.exports = function(grunt) {
// 項目配置(任務配置)
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),
watch: {
client: {
files: ['*.html', 'css/*', 'js/*', 'images/**/*'],
options: {
livereload: true
}
}
}
});
// 加載插件
grunt.loadNpmTasks('grunt-contrib-watch');
// 自定義任務
grunt.registerTask('live', ['watch']);
};
5. Execution: grunt live
When you see the following prompt, it means that the monitoring task has started:
Copy code The code is as follows:
Running "watch" task
Waiting...
6. Open our page, for example: http://localhost/
7. Click the ICON of the Chrome LiveReload plug-in again. At this time, the small dot in the center of the ICON circle becomes solid, indicating that the plug-in is executed successfully. At this time, you can change the website files and see if they are updated in real time?
Option 2: grunt-contrib-watch grunt-contrib-connect grunt-livereload
Advantages: Automatically build a static file server, no need to build a Web server on your own computer.
? Does not require browser plug-in support (not currently limited to a specific browser).
There is no need to manually add livereload.js to the web page.
Disadvantages: For those who are new to it, the configuration is slightly complicated.
1. Install the 3 plug-ins we need: grunt-contrib-watch, grunt-contrib-connect, connect-livereload
Execute command:
Copy code The code is as follows:
npm install --save-dev grunt-contrib-watch grunt-contrib-connect connect-livereload
2. Modify the Gruntfile.js file:
module.exports = function(grunt) {
// LiveReload的默認端口號，你也可以改成你想要的端口號
var lrPort = 35729;
// 使用connect-livereload模塊，生成一個與LiveReload腳本
// <script src="http://127.0.0.1:35729/livereload.js?snipver=1" type="text/javascript"></script>
var lrSnippet = require('connect-livereload')({ port: lrPort });
// 使用 middleware(中間件)，就必須關(guān)閉 LiveReload 的瀏覽器插件
var lrMiddleware = function(connect, options) {
return [
// 把腳本，注入到靜態(tài)文件中
lrSnippet,
// 靜態(tài)文件服務器的路徑
connect.static(options.base[0]),
// 啟用目錄瀏覽(相當于IIS中的目錄瀏覽)
connect.directory(options.base[0])
];
};
// 項目配置(任務配置)
grunt.initConfig({
// 讀取我們的項目配置并存儲到pkg屬性中
pkg: grunt.file.readJSON('package.json'),
// 通過connect任務，創(chuàng)建一個靜態(tài)服務器
connect: {
options: {
// 服務器端口號
port: 8000,
// 服務器地址(可以使用主機名localhost，也能使用IP)
hostname: 'localhost',
// 物理路徑(默認為. 即根目錄) 注：使用'.'或'..'為路徑的時，可能會返回403 Forbidden. 此時將該值改為相對路徑 如：/grunt/reloard。
base: '.'
},
livereload: {
options: {
// 通過LiveReload腳本，讓頁面重新加載。
middleware: lrMiddleware
}
}
},
// 通過watch任務，來監(jiān)聽文件是否有更改
watch: {
client: {
// 我們不需要配置額外的任務，watch任務已經(jīng)內(nèi)建LiveReload瀏覽器刷新的代碼片段。
options: {
livereload: lrPort
},
// '**' 表示包含所有的子目錄
// '*' 表示包含所有的文件
files: ['*.html', 'css/*', 'js/*', 'images/**/*']
}
}
}); // grunt.initConfig配置完畢
// 加載插件
grunt.loadNpmTasks('grunt-contrib-connect');
grunt.loadNpmTasks('grunt-contrib-watch');
// 自定義任務
grunt.registerTask('live', ['connect', 'watch']);
};
5. Execution: grunt live
See the following prompt, indicating that the web server has been set up and the monitoring task has started:
Copy code The code is as follows:
Running "connect:livereload" (connect) task
Started connect web server on 127.0.0.1:8000.
Running "watch" task
Waiting...
Note: Before executing this command, if you have installed the LiveReload browser plug-in, it must be closed.
6. Open our page, for example: http://localhost:8000/ or http://127.0.0.1: 8000/
Note: The local server address opened here is the static file server address we just built through connect, instead of the Web server address you used to build your own using IIS or Apache.
The above is a detailed explanation of the Grunt plug-in LiveReload to realize automatic page refresh (two options) in this article. I hope you like it.
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