Java开发: Mybatis insert 插入记录后自动返回主键（Mybatis3.x）

<insert id="insertReceipt" parameterType="Receipt" useGeneratedKeys="true" keyProperty="id">insert into tb_receipt (name,from_storage_code,to_storage_code,description,type_id,code,batch_number) values ( #{name},#{fromStorageCode},#{toStorageCode},<choose><when test="description!=null">#{description}</when><otherwise>''</otherwise></choose>,<choose><when test="typeId!=null">#{typeId}</when><otherwise>0</otherwise></choose>,<choose><when test="code!=null">#{code}</when><otherwise>''</otherwise></choose>,#{batchNumber} )<selectKey resultType="java.lang.Integer" order="AFTER" keyProperty="id" >      SELECT LAST_INSERT_ID()    </selectKey></insert>

在创建成功后会自动返回单据号，可以通过:receiptMapper.insertReceipt(receipt);   System.out.println("单据创建成功,单据号为:"+receipt.getId());//获取即可（Mybatis3.x适用，2.0的网上有很多讲解就不再赘述）