select * from user where username = #{username} insert into user(id,username,password,roleId,photo,sex,age,address) values(null,#{username},#{password},#{roleId},#{photo},#{sex},#{age},#{address}) update user set username = #{username},roleId = #{roleId},photo = #{photo},sex = #{sex},age = #{age},address = #{address} where id = #{id} update user set password = #{password} where id = #{id} delete from user where id in(${value}) select * from user where 1 = 1 and username like '%${username}%' and roleId = #{roleId} and sex = #{sex} limit #{offset},#{pageSize} select count(*) from user where 1 = 1 and username like '%${username}%' and roleId = #{roleId} and sex = #{sex}