如何在MVCcore2.2中使用不同用户的DbContext

services.AddDbContext<User1DbContext>(options =>
    options.UseSqlServer(Configuration.GetConnectionString("User1Connection")));

services.AddDbContext<User2DbContext>(options =>
    options.UseSqlServer(Configuration.GetConnectionString("User2Connection")));

"ConnectionStrings": {
  "User1Connection": "Server=(localdb)\\mssqllocaldb;Database=User1Db;Trusted_Connection=True;MultipleActiveResultSets=true",
  "User2Connection": "Server=(localdb)\\mssqllocaldb;Database=User2Db;Trusted_Connection=True;MultipleActiveResultSets=true"
}

private readonly User1DbContext _user1DbContext;
private readonly User2DbContext _user2DbContext;

public MyController(User1DbContext user1DbContext, User2DbContext user2DbContext)
{
    _user1DbContext = user1DbContext;
    _user2DbContext = user2DbContext;
}

public IActionResult MyAction()
{
    // 使用_user1DbContext或_user2DbContext进行数据库操作
    // ...
}