@Update("<script> " +
"UPDATE BD_ID_CARD_INFO SET " +
"<if test='DRIVER_TYPE == \"主驾\" '> DRIVER_TYPE = '副驾',</if>" +
"<if test='DRIVER_TYPE == \"副驾\" '> DRIVER_TYPE = '主驾',</if>" +
"CAR_ID = #{0} where CAR_ID = #{0} " +
"</script>")
public void changeDriverType(String CAR_ID);
"<if test='DRIVER_TYPE == \"主驾\" '> "
这个需要转义,如果==null,则不需要。