mybatis 常用sql寫法

1.mybatis 迴圈string(用逗號隔開的字串) ，兩種寫法

listidlist2 = getuserids(useridlist);

string userids = string.join(",",idlist);
map.put("userids",userids);

select

t1.id id,
t1.channel_name channelname,
t1.channel_type channeltype,
t1.nymanager nymanager  
from core_channel t1 where 1 = 1
and t1.`ny_ae` in
'$'order by t1.id

string productids = "tpi001,tpi002,tpi003";

insert into core_channel_product_manager (
id, channel_id, product_id,
product_name, payment, sell_price, insurance_company_id,
agency_id, start_date, end_date, creator, create_date, modifier, modify_date,batch_id)
select
null,
#,t1.id,
t1.product_name,
ifnull(t1.payment, '1'),
ifnull(#, t1.price),
t1.default_company,
t1.default_agency,
#,#,
#,now(),
#,now(),
#from core_product t1 where t1.id in($)

insert into core_channel_product_manager_temp
(channel_id,
product_id,
sell_price,
start_date,
end_date,
creator,
modifier,
batch_id
)values(#,
#,#,
#,#,
#,#,#)

select

cr.id id,
cr.name name,
# roleid
from
core_resource cr,
core_resource_role crr
where cr.id = crr.resource_id
and cr.type = '1'
and cr.parent_id = '0'
and crr.role_id = #
order by
cr.priority asc
若只有兩級，則，這裡面的返回型別寫成 resulttype="com.ssish.saas.constant.db.vo.resourcetreevo",
若是大於兩級，則多次循序，故返回型別寫  resultmap="resourcevomap"
select
cr.id id,
cr.name name,
# roleid
from
core_resource cr,
core_resource_role crr
where cr.parent_id = # and
cr.id = crr.resource_id
and cr.type = '1'
and crr.role_id  = #
order by
cr.priority asc

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