FastDFS construction and java integration

Reference: http://blog.csdn.net/kingboyworld/article/details/52299602  (FastDFS construction and java integration code)

http://blog.csdn.net/xifeijian/article/category/2487469  (FastDFS series detailed explanation)

http://blog.csdn.net/pzw_0612/article/category/6421859  (FastDFS-2016 series of tutorials)