## EmpExprMapper.xml
```xml
insert into emp_expr(emp_id, begin, end, company, job) values
(#{expr.empId}, #{expr.begin}, #{expr.end}, #{expr.company}, #{expr.job})
delete from emp_expr where emp_id in
#{empId}
insert into emp_expr(emp_id, begin, end, company, job) values
(#{expr.empId}, #{expr.begin}, #{expr.end}, #{expr.company}, #{expr.job})
delete from emp_expr where emp_id in
#{empId}
```
EmpMapper.xml
```xml
insert into emp(username, name, gender, phone, job, salary, image, entry_date, dept_id, create_time,
update_time)
values (#{username}, #{name}, #{gender}, #{phone}, #{job}, #{salary}, #{image}, #{entryDate}, #{deptId},
#{createTime}, #{updateTime});
update emp
username = #{username},
password = #{password},
name = #{name},
gender = #{gender},
phone = #{phone},
job = #{job},
salary = #{salary},
image = #{image},
entry_date = #{entryDate},
dept_id = #{deptId},
update_time = #{updateTime}
where id = #{id}
delete from emp where id in
#{id}
```