mybatis判断集合为空或者元素个数为零:
<if test="mlhs != null and mlhs.size() != 0">and t.mlh_name not in <foreach collection="mlhs" item="item1" open="(" close=")" index="i" separator=","> #{item1,jdbcType=VARCHAR}</foreach></if>
mybatis判断集合为空或者元素个数为零:
<if test="mlhs != null and mlhs.size() != 0">and t.mlh_name not in <foreach collection="mlhs" item="item1" open="(" close=")" index="i" separator=","> #{item1,jdbcType=VARCHAR}</foreach></if>
转载于:https://www.cnblogs.com/stono/p/4941585.html
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