a>可以通过实体类对象接收
<!-- Dish getDishByName(@Param("name") String name);-->
<select id="getDishByName" resultType="com.athorse.entities.Dish">
select * from dish where name = #{name}
</select>b>可以通过list集合接收
<!-- List<Dish> getDishByName(@Param("name") String name);-->
<select id="getDishByName" resultType="com.athorse.entities.Dish">
select * from dish where name = #{name}
</select>c>可以通过map集合接收
<!-- Map<String,Object> getDishByName(@Param("name") String name);-->
<select id="getDishByName" resultType="map">
select * from dish where name = #{name}
</select>a> 可以通过list集合接收
<!-- List<Dish> getDishByName(@Param("name") String name);-->
<select id="getDishByName" resultType="com.athorse.entities.Dish">
select * from dish where name = #{name}
</select>b>可以通过map类型的list集合接收
<!-- List<Map<String,Object>> getDishByName(@Param("name") String name);-->
<select id="getDishByName" resultType="map">
select * from dish where name = #{name}
</select>c>可以在mapper接口的方法上添加@MapKey注解，此时就可以将每条数据转换的map集合作为值，以某个字段的值作为键。
<!-- List<Dish> getDishByName(@Param("name") String name);-->
<select id="getDishByName" resultType="com.athorse.entities.Dish">
select * from dish where name like "%"#{name}"%"
</select><!--Integer deleteMore(@Param("ids") String ids);-->
<delete id="deleteMore">
delete from dish where id in (${ids})
</delete>四、动态设置表名 ${tableName}
<!-- List<Dish> getDishs(@Param("tableName") String tableName);-->
<select id="getDishs" resultType="com.athorse.entities.Dish">
select * from ${tableName}
</select>总结：#{}会自动的拼接上'',而${}不会，所以特殊场景下需要使用${}
