Squashed commit of the following:

commit 7c8bc712a130fa86c61baa9342960c6823b6f009
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Sat Apr 27 22:45:48 2013 +0800

    v2

commit fe9989e0d36fb5147e676ed3387341737c4d2fc9
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Sat Apr 27 22:20:17 2013 +0800

    鍒犻櫎鎺変笉蹇呰鐨勬枃浠?
commit 9a588ad30b234e6927726678cefcd5527a4af276
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Sat Apr 27 12:35:02 2013 +0800

    淇敼鍒╃敤conversion鏍囪瘑

commit e96bedc087a8d3b7232904226408f2e48e4ed1d7
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Fri Apr 26 21:06:05 2013 +0800

    搴熷純闆嗘垚jbpm

commit b7c3470e8ec37fb7f60f9d9e13955d8b2dba4644
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Thu Apr 25 22:24:32 2013 +0800

    pom add jbpm6

commit a9a9533ffc7ee6ee10b4137ee2311380695c8ad3
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Wed Apr 24 00:42:03 2013 +0800

    q

commit 1824154f443fafa92b82b5d46d73bb583fe31205
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Tue Apr 23 23:47:21 2013 +0800

    commitv1

commit 3386adc408a94e312517f8048c2794dfaba42f71
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Tue Apr 23 23:42:51 2013 +0800

    commit

commit 1357e52e6152fcca8276265380af63a22e23c08d
Author: qiuqiupeng <pengleeg@gmail.com>
Date:   Mon Apr 22 16:37:09 2013 +0800

    鍒涘缓JPA鐗堟湰鍒嗘敮
for id