随笔分类 - Hibernate
摘要:<set name="linkMans" inverse="true"> <key column="lkm_cust_id" ></key> <one-to-many class="LinkMan"/> </set><!-- 此处的inverse为true说明不维护关系,提高了效率--> casca
阅读全文
摘要:1,通过getCurrentSession方法获得session对象, 当事务提交时,session会自动关闭,不用手动调用close方法关闭,否则会报异常 2,hibernate引入orm元数据 路径书写:填写src下的路径(src包括src之前的路径删除)
阅读全文
摘要:java.lang.ExceptionInInitializerError at demo.Demo.test1(Demo.java:15) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.N
阅读全文
摘要:java.lang.ExceptionInInitializerError at cn.itcast.a_one2many.Demo.fun1(Demo.java:17) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) a
阅读全文
摘要:
阅读全文
