mybatisplus orderBy

MyBatis Plus provides a convenient way to specify the order by clause in your SQL queries. You can use the `orderBy` method to add an order by condition to your query.

Here's an example:

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.enums.SqlKeyword;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;

public class Main {
    public static void main(String[] args) {
        QueryWrapper<User> queryWrapper = Wrappers.query();
        queryWrapper.orderByAsc("age"); // Order by age column in ascending order
        // or queryWrapper.orderByDesc("age"); for descending order
        
        List<User> userList = userDao.selectList(queryWrapper);
        // perform further operations with the sorted user list
    }
}

In this example, we create a `QueryWrapper` object and use the `orderByAsc` method to specify that we want to order the result by the "age" column in ascending order. Alternatively, you can use `orderByDesc` for descending order.

You can chain multiple `orderBy` methods to sort by multiple columns. Additionally, you can use the `last` method to append custom SQL conditions to the order by clause.

Note that `userDao` is an instance of your MyBatis mapper interface, and `User` is your entity class representing the database table.

I hope this helps! Let me know if you have any more questions.