netiquette guidelines

= keygenerator.getinstance ("AES"); Kgen.init (+);//192 and-bits may unavailablesecretkey skey = Kgen.generatekey (); byte[] raw = skey.getencoded (); Secretkeyspec Skeyspec = new Secretkeyspec (Raw, "AES") Cipher.init (Cipher.encrypt_mode, skeyspec);//Encode bytes as UTF8; strtobeencrypted contains the//input string that was to be encryptedbyte[] encoded = strtobeencrpyted.getbytes ("UTF-8");// Perform encryptionbyte[] encrypted = cipher.dofinal (encoded);[Availability]The use of mathematical

Discussion of jquery and JavaScript performance is not uncommon. However, in this article I plan to summarize some of the speed techniques and some of my own suggestions to improve your jquery and JavaScript code. Good code can lead to a speed boost. Fast rendering and response means a better user experience First, keep in mind that jquery is JavaScript. This means that we should adopt the same coding conventions, style guides and best practices. First of all, if you're a beginner of JavaScript

overflow:hidden or other code that hides the problem can have immediate effect, but overflow may not be a problem at all. So it's a cure, not a simple symptom.CSS PreprocessorI use Sass. Use should be flexible. Using Sass can make your CSS more powerful, but don't nest too complex. In Vanilla CSS, you can only use nesting where necessary, for example:. Header{}.header. Site-nav{}.header. Site-nav li{}.header. Site-nav Li a{}This kind of writing is completely useless in the normal CSS. The follo

How to manage a good website, operating a website to have what mentality, to see their own site? Today, Xiao Xu to explain to us, experience of the site mentality. I have summed up the following points you can easily see, Four do not: 1, do not narcissism. (It seems very difficult to do this, especially in China's internet circle is the salient feature of narcissism, everyone is somewhat a bit) 2, do not have others to do, I am sure the idea of the line. (In fact, often, copy other people'

Article Description: know the reason why-where the design guidelines come from. The internet has played a great role in the dissemination of information, we face every day is to find, browse, read, understand all kinds of information, information design is always the same topic, how do people read and understand information? We look for and use visual structures When information is presented in a concise and structured manner, people can

Hibernate optimization Crawl (optimization guidelines---n+1 query issues) By default, hibernate does not load data that you do not request, thus reducing the memory consumption of the persisted context. However, it will also make you face the so-called n+1 query problem. If each association and collection are initialized on demand only, and no other policy is configured. A specific process can also perform dozens of or even hundreds of of queries to

Love is wonderful, is happy. Everyone wants to talk about a vigorous love, so sometimes need to pay attention to a lot of criteria to talk about a stable love. For example: Active attack type, treat each other sincerely, trust respect each other, caring for each other, single-minded treatment of each other, adversity to see the truth do not abandon do not give up. These 6 points have done, basically you can talk about a very good love! I suddenly found that these 6 points to apply to the SEO abo

Original link: http://www.cnblogs.com/zhengyun_ustc/p/rule1.html Web Development Engineers read the guidelines for front-end development below, which is the first part, highlighting the Web Access security infrastructure that we have noticed in the last few years that Web engineers have to deal with. In particular, some engineers from traditional software development to the Internet development, please read carefully, do not neglect these basic points

This article mainly introduces the use of Angularjs to create a single page application programming guidelines, ANGULARJS is a highly popular JavaScript library, the need for friends can refer to the Overview Single-page applications are becoming increasingly popular. Web sites that simulate the behavior of a single page application can provide a sense of mobile/tablet applications. Angular can help us create this kind of application easily Simple

the article needs to be organized 2015.3.13 Revision Distributed systems typically serve large requests, maintain big data, respond quickly, and are available for long periods of time. There are a lot of things to consider when designing a distributed backend service, this article gives some common design guidelines for viewing. Availability: The system can serve the time normally, some online systems often require 99% availability. High availability

Tags: 9.png get ima finishing soft Chinese system default infoDetailed steps to look at a sorted Word documentLink: https://pan.baidu.com/s/1zOhaFVpro2DNnJlJ6dbSEg Password: lj4mThe concrete step here does not introduce, here record the error messageThis is said that the system is missing this package by default, but in fact, if you have installed VS2013 and above version, here will not prompt this error, but you can download it yourself.Select this Chinese to download and install.After download

Tags: daily maintenance Install a markdown Insert data dir technology shutdown observationTable structureOne DB for a folder.One table two files The frm is a table structure, and IBD is the storage data Connection layer:SockIp SQL Layer: Storage tiers: MY.CNF Read Order Observing the startup process (data directory) - 授权用户(设密码) - 查看用户权限 - 查看mysql版本(3种\s; show states;\) - 建库 建表 插入数据 - 查看表结构(字段/及建表语句) - 查询某几列 - 查看正在执行的sql(show processlist) - server/client字符集 - 查询库的最大连接数 - 查询库

Document directory The form tag should be placed above the field User attention to face Design quality is an indicator of Reliability Blue is the best color of the link. The ideal search box is 27 characters wide Blank space can enhance understanding Effective user testing is not necessarily extensive The information product page can help you attract attention Most users ignore ads No.: conclusions from our case study Other resources) Original article: 10 useful usability conclusion

First, the preface See a document about SQL Server table partitioning on MSDN: Special guidelines for partitioned indexes, it's harder to understand the meaning of a document if you don't have actual experience with the table partition. Here I will explain some of the concepts to facilitate the exchange of people. SQL Server interprets "Special guidelines for Partitioned Indexes" (1)-Index alignment SQL

performance of the database. Therefore, database administrators still need to follow several guidelines when writing transactions. Guideline 1: minimize access records in transactions. In a transaction, if a record operation statement such as Update is executed, the database locks the accessed record to ensure data consistency, so as to prevent other users from modifying the record at the same time. At this time, if other users need to access the loc

Db2 uses hints (guidelines) like oracle)Db2 uses hints (guidelines) C: \ DB2> more f3.sqlSELECT d like oracle. DEPTNAME, e. FIRSTNME, e. lastnamefrom department d, employee ewhere d. DEPTNO = e. workdept and e. empno like '123 '/* */;C: \ DB2> C: \ DB2> db2expln-d sample-f f3. SQL-g-t-z ";"DB2 Universal Database Version 10.5, 5622-044 (c) Copyright IBM Corp. 1991,201 2 Licensed Materi

In the past few days, I read SteveSouders's high-performance website construction guide book. Although this book may be somewhat old, however, the guidelines for website performance optimization proposed in a thin booklet are still very valuable. In the past few days, I read Steve Souders's high-performance website construction guide book. although this book may be somewhat old, the guidelines for website p

number of rows returned by the query result is less than 5% of all rows in the table, the index is the fastest way to retrieve data. If the query result exceeds 5%, the index is usually not the fastest way. 10. The column where the primary and unique keywords are located automatically has an index, but the external keywords are not automatically indexed. Index features After determining that an index is suitable for a query, you can customize the index type that best suits the specific situati

With icloud in OS 5, Apple has updated its data storage guidelines to accommodate icloud storage while adding "do not back up" file attributes to specify that files are not backed up and uploaded to icloudExcerpts are as follows, for your reference:IOS Data Storage Guidelinesicloud includes a backup that automatically backs up users ' iOS devices every day via Wi-Fi. Everything in the app's home directory will be backed up, in addition to the app bund

After introducing how to correctly use JavaScript and CSS in XHTML, W3CGroup continues to provide 16 Guidelines for XHTML compatibility with HTML! 1. Avoid page declaration as XML type, The page uses the UTF-8 or UTF-16 character set. 2.Add a slash/Such:, And so on. 3.When the content of a non-empty element (this label is used to contain content, such as a title or paragraph) is empty, a blank character is given, instead of an end method like an emp