As a software engineer, I think everyone can tell thousands of words about the differences between SQL vs NoSQL. And how to make a choice between them with your requirement. Recently, I migrated the SaltyNote service from MariaDB to MongoDB. While the reason is not for high throughput or performance.
In SaltyNote Implementation - Service, I shared the details about server side implementation of SaltyNote. In this article, I will introduce the implementation of the SaltyNote Chrome Extension.
SaltyNote is a Chrome Extension that provides the immersive page notes taken experience. The users can view all the notes taken on the current page from the right sidebar without leaving the page. In this article, I will introduce the implementation of the SaltyNote service.
在做服务器端API开发的时候，如何保持文档的更新是一个比较头疼的问题。试过写成word文档，缺点很明显： 更新不及时 不便于查阅 也试过用其他的在线API管理工具，太懒了，总是无法保持更新。而且大多数服务还是收费的。
这篇文章将简单介绍一下如何用Jersey（DropWizard）在一次Request中接受多个文件。其实Google一下，SO上会有很多回答，只是在这边献丑一下。
其实下面这些个assert语句都可以通过junit测试。 12345678@Testpublic void integerValueOfTest() { Assert.assertTrue(Integer.valueOf(-128) == Integer.valueOf(-128)); Assert.assertFalse(Integer.valueOf(128) == Integer.valueOf(128)); Assert.assertTrue(Integer.valueOf(127) == Integer.valueOf(127)); Assert.assertTrue(Integer.valueOf(1) == Integer.valueOf(1)); Assert.assertFalse(Integer.valueOf(1000) == Integer.valueOf(1000));}
这是我在StackOverflow上提的第一个问题：Why Objects.hash() returns different values for the same input?
由于长时间在自己coding中处理英文内容，导致今天发现自己在做的一单网站在给用户发新密码邮件的时候居然中文乱码。（原来我每天都说的中文在我写代码的时候被忽略了）
There are many ways to check whether a file is image. For example, check the file extension(jpg, png, gif …). But this is not so safe, in a web environment, user may rename XXX.exe, to XXX.jpg, then s/he can succeed to upload it. In this case, it can induce security problem.
This article is a brief introduction of how to use maven to deploy your website into tomcat7 [Ubuntu].
I have written a PayPal Credit Card payment plugin for jFinal, so I just share it here! It is hosted in my GitHub: https://github.com/zhouhao/PayPal-CreditCard-Payment-jFinal
I think it is better to master 23 Design Patterns as a Java developer. After I have a brief study, I find design pattern is not a new concept, and I have already used some of them in my daily projects unconsciously. Here I will describe some details about Decorator and Proxy, as I find they share something in common.
It is a simple function that can identify the credit card type by its number. Get help from this page: http://www.regular-expressions.info/creditcard.html