我曾寫過購物車,用的是他的描述的舊架構,如果改用他的新架構的確會比較有彈性,也比較好維護。在寫過比較多的 code 之後,現在比較會使用繼承來寫元件,下面這篇教學裡的重點應該很多,但我吸收到的有3個,一個是要把分工做好(Sessionless),類似 Restful API 的概念,一個是要多寫成可以繼承的元件,第3個是Plugin模式,主要在這一個模式讓系統易擴充。
教學:
http://www.slideshare.net/jaceju/ss-6312192
2015年9月28日 星期一
取得實際對外IP的方法
這個是一個很簡單的小功能,對 client side 來說很有幫助,對server side 來說,也是超級簡單,所有的server side script 幾乎都支援,主要的問題就是要有一台Public IP 的 server.
官方網址:
https://www.ipify.org/
API說明:
使用範例:
而且還有好心人幫忙多包了一層Object, 讓程式更好用:
ex:
https://github.com/rdegges/python-ipify
官方網址:
https://www.ipify.org/
API說明:
API URI | Response Type | Sample Output (IPv4) |
https://api.ipify.org | text | 98.207.254.136 |
https://api.ipify.org?format=json | json | {“ip”:”98.207.254.136″} |
https://api.ipify.org?format=jsonp | jsonp | callback({“ip”:”98.207.254.136″}); |
https://api.ipify.org?format=jsonp&callback=getip | jsonp | getip({“ip”:”98.207.254.136″}); |
使用範例:
Bash
#!/bin/bash
ip=$(curl -s https://api.ipify.org)
echo "My public IP address is: $ip"
Python
# This example requires the requests library be installed. You can learn more
# about the Requests library here: http://docs.python-requests.org/en/latest/
from requests import get
ip = get('https://api.ipify.org').text
print 'My public IP address is:', ip
Ruby
require "net/http"
ip = Net::HTTP.get(URI("https://api.ipify.org"))
puts "My public IP Address is: " + ip
PHP
<?php
$ip = file_get_contents('https://api.ipify.org');
echo "My public IP address is: " . $ip;
?>
Perl
use strict;
use warnings;
use LWP::UserAgent;
my $ua = new LWP::UserAgent();
my $ip = $ua->get('https://api.ipify.org')->content;
print 'My public IP address is: '. $ip;
VB.NET
Dim client as New System.Net.WebClient
Dim ip as String = client.DownloadString("https://api.ipify.org")
NodeJS
var http = require('http');
http.get({'host': 'api.ipify.org', 'port': 80, 'path': '/'}, function(resp) {
resp.on('data', function(ip) {
console.log("My public IP address is: " + ip);
});
});
Javascript
<script type="application/javascript">
function getIP(json) {
document.write("My public IP address is: ", json.ip);
}
</script>
<script type="application/javascript" src="https://api.ipify.org?format=jsonp&callback=getIP"></script>
jQuery
<script type="application/javascript">
$(function() {
$.getJSON("https://api.ipify.org?format=jsonp&callback=?",
function(json) {
document.write("My public IP address is: ", json.ip);
}
);
});
</script>
C#
using System;
using System.Net;
namespace Ipify.Examples {
class Program {
public static void Main (string[] args) {
WebClient webClient = new WebClient();
string publicIp = webClient.DownloadString("https://api.ipify.org");
Console.WriteLine("My public IP Address is: {0}", publicIp);
}
}
}
Arduino
if (client.connect("api.ipify.org", 80)) {
Serial.println("connected");
client.println("GET / HTTP/1.0");
client.println("Host: api.ipify.org");
client.println();
} else {
Serial.println("connection failed");
}
而且還有好心人幫忙多包了一層Object, 讓程式更好用:
ex:
https://github.com/rdegges/python-ipify
To install
ipify
, simply run:$ pip install ipify
This will install the latest version of the library automatically.
Usage
Using this library is very simple. Here's a simple example:
>>> from ipify import get_ip
>>> ip = get_ip()
>>> ip
u'96.41.136.144'
2015年7月27日 星期一
[JS] jQuery 顯示 badge
badge 就是一個小圈圈裡有數字,找到一個有趣的 sample code, 可以下一個 class 就套出 badge, 缺點就是需要調一下別人的 css 把 沒有在用 style 先拿掉。
套出來的畫面:
使用方法:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h2>Badges on Buttons</h2>
<button type="button" class="btn btn-primary">Primary <span class="badge">7</span></button>
<button type="button" class="btn btn-success">Success <span class="badge">3</span></button>
<button type="button" class="btn btn-danger">Danger <span class="badge">5</span></button>
</div>
</body>
</html>
example 2:
<!DOCTYPE html>
<html>
<head>
<link data-require="bootstrap@*" data-semver="3.3.1" rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" />
<script data-require="jquery@*" data-semver="2.1.3" src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body>
<button class="btn btn-sm btn-default like-btn active" type="button" id="10">
<span class="glyphicon glyphicon-thumbs-up"></span>
<span class="text">Liked</span>
<span class="badge like-badge">1</span>
</button>
<script>
$(document).on("click", ".like-btn", function(e) {
e.preventDefault();
var $label = $(this).find('.text'),
$badge = $(this).find('.badge'),
count = Number($badge.text()),
active = $(this).hasClass('active');
$label.text(active ? 'Like' : 'Liked');
$badge.text(active ? count - 1 : count + 1);
$(this).toggleClass('active');
});
</script>
</body>
</html>
資料來源:
http://www.w3schools.com/bootstrap/bootstrap_badges_labels.asp
套出來的畫面:
使用方法:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<h2>Badges on Buttons</h2>
<button type="button" class="btn btn-primary">Primary <span class="badge">7</span></button>
<button type="button" class="btn btn-success">Success <span class="badge">3</span></button>
<button type="button" class="btn btn-danger">Danger <span class="badge">5</span></button>
</div>
</body>
</html>
example 2:
<!DOCTYPE html>
<html>
<head>
<link data-require="bootstrap@*" data-semver="3.3.1" rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" />
<script data-require="jquery@*" data-semver="2.1.3" src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
<link rel="stylesheet" href="style.css" />
<script src="script.js"></script>
</head>
<body>
<button class="btn btn-sm btn-default like-btn active" type="button" id="10">
<span class="glyphicon glyphicon-thumbs-up"></span>
<span class="text">Liked</span>
<span class="badge like-badge">1</span>
</button>
<script>
$(document).on("click", ".like-btn", function(e) {
e.preventDefault();
var $label = $(this).find('.text'),
$badge = $(this).find('.badge'),
count = Number($badge.text()),
active = $(this).hasClass('active');
$label.text(active ? 'Like' : 'Liked');
$badge.text(active ? count - 1 : count + 1);
$(this).toggleClass('active');
});
</script>
</body>
</html>
資料來源:
http://www.w3schools.com/bootstrap/bootstrap_badges_labels.asp
訂閱:
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