您如何将我当前的业务层转换为IOC风格？

Question

您如何将我当前的业务逻辑层方法转换为IOC？

public static List<User> GetUsers()
{
    MyDBProvider db = new MyDBProvider();

    return db.GetUsers();
}

Answer 1

List<User> users = GetUsers(new MyDbProvider());

List<User> GetUsers(IDataProvider provider){
    return provider.GetUsers();
}

Answer 2

我可能会摆脱静态方法，并为初学者使用更面向对象的方法。

public class UserRepository {
    private DBProvider provider;

    public DBProvider getProvider() { return provider; }
    public void setProvider(DBProvider provider) { this.provider = provider; }

    public List<User> getUsers() { return getProvider().getUsers(); }
}

public interface DBProvider {
    List<User> getUsers();
}

public class MyDbProvider implements DBProvider { ... }