動態參數拼接的查詢語句
–傳入參數類型為自定義數據類型
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<select id="queryMessageList" parameterType="com.imooc.bean.Message" resultMap="MessageResult"> select ID,COMMAND,DESCRIPTION,CONTENT from MESSAGE where 1=1 <if test="command !=null &&!"".equals(command.trim())"> and COMMAND=#{command} </if> <if test="description != null and !"".equals(description.trim())"> and DESCRIPTION like '%' #{description} '%' </if> </select> |
刪除單條數據
–傳入參數類型為String與基本數據類型
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<delete id="deleteOne" parameterType="int"> delete from MESSAGE WHERE ID = #{_parameter}</delete> |
刪除多條數據
–傳入參數類型為List
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<delete id="deleteBatch" parameterType="java.util.List"> delete from MESSAGE WHERE ID in ( <foreach collection="list" item="item" separator=","> #{item} </foreach> )</delete> |
以上所述是小編給大家介紹的Mybaits配置文件之動態SQL配置備忘錄，希望對大家有所幫助，如果大家有任何疑問歡迎給我留言，小編會及時回復大家的！
原文鏈接：http://blog.csdn.net/qq_38325620/article/details/72565356
