xml里面的代码
select * from table_name where id in (#{param})
param = ‘1,2,3’;
用#{param} 拼装的sql是
select * from table_name where id in ('1,2,3')//这个不能执行(报错)
使用${param}拼装的sql是
select * from table_name where id in (1,2,3)//可以运行的
xml里面的代码
select * from table_name where id in (#{param})
param = ‘1,2,3’;
用#{param} 拼装的sql是
select * from table_name where id in ('1,2,3')//这个不能执行(报错)
使用${param}拼装的sql是
select * from table_name where id in (1,2,3)//可以运行的