Merge changes I6ef5c2b7,I884ae063

* changes:
  Merge remote-tracking branch 'refs/remotes/origin/master'
  Merge remote-tracking branch 'refs/remotes/origin/master'
tree: b53fc50b4056f1d2c3d3c0abe612ec7ebbc89647
  1. recommend/
  2. src/
  3. 开发文档/
  4. .gitignore
  5. pom.xml