hibernate tools 生成pojo 注解
eclipse官网下载相应版本hibernate-tools或使用update site更新
1.下载hibernate-tools
eclipse(Indigo) - help - install new software - work with输入
http://download.jboss.org/jbosstools/updates/stable/indigo/
选择Abridged JBoss Tools 3.3 - Hibernate Tools - next更新
2.eclipse工具栏如没有hibernate code Generation工具栏，在工具栏鼠标右键，选择
customize perspective..,打开customize perspective窗口，选择command groups availability选项，勾选hibernate code Generation。
3.参考博客http://maimode.iteye.com/blog/1630670
4.最后生成pojo是选择Main后边的Exporters选项，setting勾选Generate EJB3 annotations，exproters勾选Domain code
