1.批量添加
<insert id="batchInsert" parameterType="java.util.List" useGeneratedKeys="false">
INSERT ALL
<foreach item="item" index="index" collection="list">
INTO test
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="item.id != null and item.id != ''">id,</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="item.id != null and item.id != ''">#{item.id},</if>
</trim>
</foreach>
SELECT 1 FROM DUAL
</insert>