ids for this class must be manually assigned before calling save():

HTTP Status 500 - ids for this class must be manually assigned before calling save(): wys.zml.pojo.ArticleInfo

type Exception report

message ids for this class must be manually assigned before calling save(): wys.zml.pojo.ArticleInfo

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): wys.zml.pojo.ArticleInfo

解决方法：将下面的将Hibernate反转生成的xxx.hbm.xml文件中的<generator class="assigned" />改为  <generator class="identity" /> 

 <id name="id" type="java.lang.Integer">
            <column name="id" />
            <generator class="assigned" />
        </id>