如何使用带有可分页的mongorepository修复转换错误

import org.springframework.data.mongodb.repository.MongoRepository;

public interface UserRepository extends MongoRepository<User, String> {
    // 在这里定义对User集合的操作方法
}

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.mapping.Document;

@Document(collection = "users")
public class User {
    @Id
    private String id;
    private String name;
    private int age;
    // 其他属性和对应的getter/setter方法
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.stereotype.Service;

@Service
public class UserService {
    @Autowired
    private UserRepository userRepository;

    public void fixConversionError() {
        int pageSize = 100; // 每页数据条数
        int pageNumber = 0; // 起始页码

        PageRequest pageRequest = PageRequest.of(pageNumber, pageSize);
        Page<User> userPage = userRepository.findAll(pageRequest);

        while (!userPage.isEmpty()) {
            for (User user : userPage.getContent()) {
                // 修复转换错误的逻辑
                // 例如，可以将age字段的类型从String转换为int
                try {
                    int age = Integer.parseInt(user.getAge());
                    user.setAge(age);
                    userRepository.save(user);
                } catch (NumberFormatException e) {
                    // 转换错误处理逻辑
                }
            }

            pageNumber++; // 下一页
            pageRequest = PageRequest.of(pageNumber, pageSize);
            userPage = userRepository.findAll(pageRequest);
        }
    }
}