Web-forms 在 Page_Init 中初始化服务答案

【问题标题】：Web-forms Initialize services in Page_InitWeb-forms 在 Page_Init 中初始化服务
【发布时间】：2016-03-23 09:52:48
【问题描述】：

我的项目由模型、服务、DAO 存储库、Unity 和 Web 表单部分分隔。在我的页面中，我有许多隐藏的依赖项，我想重构代码。

在我的项目中我有很多这样的

        private DealsService dealsService;
        private DealsParser dealParser;
        private PeopleBinder peopleBinder;
        private DealStatusService dealStatusService;
        private PersonsService personService;
        private PersonalMetricsService metricService;
        private DealRelationsService dealRealtionService;
        private AuditReportService auditService;
        private ProductLineService productLineService;
        private DealProductLineService dealProdLineService;
        private DynamicColumnsService dynamicColService;
        private DealValuesService dealValuesService;

 protected void Page_Init(object sender, EventArgs e)
        {
            dealsService = new DealsService();
            peopleBinder = new PeopleBinder();
            dealParser = new DealsParser();
            dealStatusService = new DealStatusService();
            editDealId = Request.Params["ID"];
            FinancialPeriod = Request.Params["FinancialPeriod"];
            editFYandMonth = FinancialPeriod.Substring(2,7);
            editCountry = Request.Params["Country"];
            personService = new PersonsService();
            metricService = new PersonalMetricsService();
            dealRealtionService = new DealRelationsService();
            employeeService = new EmployeeService();
            auditService = new AuditReportService();
            productLineService = new ProductLineService();
            reports = new List<AuditReport>();
            dealProdLineService = new DealProductLineService();
            dynamicColService = new DynamicColumnsService();
            dealValuesService = new DealValuesService();
           }

现在我开始重构代码并为所有这些服务创建接口并由接口封装。是否可以避免这个 new 关键字？现在我正在实现 IoC 容器。

【问题讨论】：

标签： c# dependency-injection webforms refactoring

【解决方案1】：

当然，使用依赖注入你可以这样做：

private IDealsService DealsService {get; set;}
private IDealsParser DealParser {get; set;}
//etc...

protected void Page_Init(object sender, EventArgs e, IDealsService dealsService, IDealsParser dealParser)
{
    DealsService = dealsService;
    DealParser = dealParser;
    //etc...
}

在您决定使用的 DI 配置中。这是一个 Ninject 示例，设置绑定：

public class Bindings : NinjectModule
{
    public override void Load()
    {
        Bind<IDealsService>().To<DealsService>();
        Bind<DealsParser>().To<DealsParser>();
    }
}

一个很好的 Ninject 教程http://blog.agilistic.nl/a-step-by-step-guide-to-using-ninject-for-dependancy-injection-in-c-sharp/

【讨论】：