Java MyBatis 插入數據庫返回主鍵--insertSelective這樣就不用每次到數據庫裏面查詢了

insertSelective---Java MyBatis 插入數據庫返回主鍵--insertSelective這樣就不用每次到數據庫裏面查詢了

https://www.cnblogs.com/xingyunblog/p/6243179.html

列子：

<!-- 插入一個商品 -->
    <insert id="insertProduct" parameterType="domain.model.ProductBean" >
       <selectKey resultType="java.lang.Long" order="AFTER" keyProperty="productId">
          SELECT LAST_INSERT_ID()
      </selectKey>
        INSERT INTO t_product(productName,productDesrcible,merchantId)values(#{productName},#{productDesrcible},#{merchantId});
    </insert>

我寫的：

<insert id="insertSelective" parameterType="com.runfast.waimai.dao.model.RunfastBusinessType">  <selectKey resultType="java.lang.Integer" order="AFTER" keyProperty="id">    SELECT LAST_INSERT_ID()  </selectKey>  insert into newrunfast.runfast_business_type