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Skip download if files exist in wget?
...t the case, check if you have a file to begin with :-) [ ! -e "$(basename $URL)" ] && wget $URL
– plundra
Oct 21 '15 at 11:56
3
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What is the difference between JSF, Servlet and JSP?
...s GET and POST. You can configure HttpServlets to listen to a certain HTTP URL pattern, which is configurable in web.xml, or more recently with Java EE 6, with @WebServlet annotation.
When a Servlet is first requested or during web app startup, the servlet container will create an instance of it and...
HTTP POST and GET using cURL in Linux [duplicate]
...ice little command which makes our lives a lot easier.
GET:
with JSON:
curl -i -H "Accept: application/json" -H "Content-Type: application/json" -X GET http://hostname/resource
with XML:
curl -H "Accept: application/xml" -H "Content-Type: application/xml" -X GET http://hostname/resource
POST...
Arduino101（Genuino 101）&App Inventor – RGB LED控制 - 创客硬件开...
.../2017/02/ ... %e6%8e%a7%e5%88%b6/
本文將介紹如何取得觸碰點的 RGB 參數之後透過 BLE 送給 Arduino 101 來點亮 RGB LED。
App InventorDesigner使用 Canvas 來取得觸碰點座標。兩個連線斷線用的按鈕：Btn_Connect / Btn_DisConnect三個用來呈現RG...
What’s the best RESTful method to return total number of items in an object?
...ng great. I can issue GET , POST , PUT and DELETE requests to object URLs and affect my data. However, this data is paged (limited to 30 results at a time).
...
AngularJS : When to use service instead of factory
...ew Comment(), etc.
Use Provider when you need to configure it. i.e. test url, QA url,
production url.
If you find you're just returning an object in factory you should probably use service.
Don't do this:
app.factory('CarFactory', function() {
return {
numCylinder: 4
};
})...
How to deploy an ASP.NET Application with zero downtime
...ime using folders as versions and the IIS metabase:
for an existing path/url:
path: \web\app\v2.0\
url: http://app
Copy new (or modified) website to server under
\web\app\v2.1\
Modify IIS metabase to change the website path
from \web\app\2.0\
to \web\app\v2.1\
This method offers the fol...
Can you get DB username, pw, database name in Rails?
...configuration from database.yml and from the environment variable DATABASE_URL.
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Detecting 'stealth' web-crawlers
... up bot traps on large scale (and have DNSRBL with their IPs).
Use tricky URLs and HTML:
<a href="//example.com/"> = http://example.com/ on http pages.
<a href="page&amp;&#x23;hash"> = page& + #hash
In HTML you can use plenty of tricks with comments, CDATA elements, entit...
What's the best way to do “application settings” in Android? [closed]
I'd like to store some application settings (like the URL of an API, and some settings for testing) for an Android application.
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