Hibernate 多对多映射实列 (复合主键)
<id name="id" type="integer"><column name="userId" /><generator table="TB_IRCS_USERGROUP" lazy="true" inverse="false" cascade="save-update" batch-size="5" sort="unsorted" > <key column="userId"/> <many-to-many not-null="true" length="12"></column> <column name="stockcode" not-null="true" length="8" ></column> <column name="stocktype" not-null="true" length="1" ></column> </many-to-many> </set>
?以上为：IrcsUser.hbm.xml
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<composite-id><key-property name="groupCode" type="string"><column name="groupCode" length="12" /></key-property><key-property name="stockCode" type="string"><column name="stockcode" length="8" /></key-property><key-property name="stockType" type="string"><column name="stocktype" length="1" /></key-property></composite-id><set name="ircsUsers" table="TB_IRCS_USERGROUP" lazy="true" inverse="false" cascade="save-update" batch-size="5" sort="unsorted"> <key> <column name="stockcode" not-null="true" length="8" ></column> <column name="stocktype" not-null="true" length="1" ></column> <column name="groupCode" not-null="true" length="12"></column> </key> <many-to-many column="userId"/> </set>
以上为：IrcsGroup.hbm.xml
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注意：set中的key 的顺序与实体类的属性顺序一致！！！！
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