http://blog.csdn.net/whxaing2011/article/details/20736759
ES总结：
http://www.cnblogs.com/sunxucool/p/3621002.html
http://www.dengchuanhua.com/159.html
http://ilnba.iteye.com/blog/1725649
http://blog.csdn.net/laigood/article/details/7691068
http://spinscale.github.io/elasticsearch/2012-03-jugm.html#/23
http://www.elasticsearch.cn/tutorials/2011/07/18/attachment-type-in-action.html
http://www.scrutmydocs.org/
http://www.cnblogs.com/huangfox/p/3542858.html
http://tika.apache.org/
https://github.com/elasticsearch/elasticsearch-mapper-attachments/blob/master/src/test/resources/org/elasticsearch/index/mapper/xcontent/test-mapping.json
http://itindex.net/detail/49355-java-word-freemarker
http://blog.csdn.net/whxaing2011/article/details/15253271
http://blog.csdn.net/whxaing2011/article/details/37997239
https://crate.io/download/
http://blog.csdn.net/dr_lf/article/details/7292441
http://www.cnblogs.com/holly/archive/2013/06/15/3137041.html