2010-07-06
Libevent provides cross-platform asynchronous callbacks on sockets and file descriptors. Different operating systems have different ways of handling this efficiently, for example&nbs ...
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PHP is a very simple and easy-to-learn programming language – it provides anyone with minimal programming skills an easy way to get things done. For example, you can assign a value to a variable without even declaring that variable. It is those types of practices and often lack of knowledge of ...
保护开源的数据库系统MYSQL和PostgreSQL免遭SQL injection攻击。
官方站点: http://www.greensql.net/
GreenSQL is an Open Source database firewall used to protect databases from SQL injection attacks. GreenSQL works as a proxy and has built in support for MySQL. The logic is based on evaluation of ...
Lucene是一个高性能的java全文检索工具包，它使用的是倒排文件索引结构。该结构及相应的生成算法如下：
0）设有两篇文章1和2
文章1的内容为：Tom lives in Guangzhou,I live in Guangzhou too.
文章2的内容为：He once lived in Shanghai.
1)由于lucene是基于关键词索引和查询的，首先我们要取得这两篇文章的关键词，通常我们需要如下处 ...
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