Dao層如下：

int dynamicUpdateTable(@Param("table") Map table);

xml Sql：

<update id="dynamicUpdateTable" parameterType="map">

UPDATE ${table.tabName} SET

<foreach item="value" index="key" collection="table.entrySet()" separator=",">

???? <if test="key!='tabName' and key!='id'">

?????????? ${key} =? #{value}

???? </if>

</foreach>

WHERE id=#{tab.id}

</update>

入?yún)ⅲ?/p>

{

?? "colname":"40",

? ? "id":1,

? ? "createTime":"2018-02-08",

? ? "userName":"marvers",

? ? "tabName":"tab_m"

}