http://blog.csdn.net/zouqin369/article/details/6913692
http://ruiming.i.sohu.com/blog/view/203870916.htm
http://blog.csdn.net/amuseme_lu/article/details/6262572
http://dongxicheng.org/search-engine/thrift-guide/
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http://www.oschina.net/code/list/1/java?show=time&
判断文件头：
http://www.oschina.net/code/snippet_188162_15020
MemCached
http://blog.sina.com.cn/s/blog_493a845501013ei0.html
http://blog.csdn.net/bintime/article/details/6259133
SQLite
http://blog.csdn.net/luxiaoyu_sdc/article/details/8291368
StringRegex:
http://www.vogella.com/articles/JavaRegularExpressions/article.html
String.matches:
http://www.javamex.com/tutorials/regular_expressions/string_matches.shtml
http://www.java2s.com/Code/Java/Regular-Expressions/JavaRegularExpressionSplittext.htm