动易SiteFactory数据采集模块

    动易这套系统的数据采集模块,是基于.Net2.0开发的,里用到了Asp.net Ajax,WebService,线程序等技术.
 具体实现思路是:
  数据采集类PowerEasy.Collection.CollectionProgress 的StartCreate()中启动数据采集线程
 代码如下: 
private void StartCreate()
  {
    this.m_CreateThread = new Thread(new ThreadStart(this.Work));
    this.m_CreateThread.Start();
  }
接着将自己保存到Appliction中

public void CreateCollectionProc()
{
    this.m_CreateId = Guid.NewGuid().ToString();
    if (HttpContext.Current != null)
    {
        this.m_PhysicalApplicationPath = this.PhysicalApplicationPath;
    }
    XmlManage manage = XmlManage.Instance("Config/CreateCollectionWork.config", XmlType.File);
    manage.SetNodeValue("CollectionWork/WorkId", this.m_CreateId);
    try
    {
        manage.Save("Config/CreateCollectionWork.config");
    }
    catch (FileNotFoundException)
    {
        throw new CustomException("CreateCollectionWork.config文件未找到。");
    }
    catch
    {
        throw new CustomException("检查您的服务器是否给配置文件CreateCollectionWork.config或文件夹写入权限。");
    }
    this.StartCreate();
    if (HttpContext.Current != null)
    {
        HttpContext.Current.Application[this.m_CreateId] = this;
    }
}

 
Application 的键,是一个生成的Guid 此Guid会保存到 /Config/CreateCollectionWork.config 文件中
进度显示页面\Admin\Collection\CollectionProc.aspx 采用Ajax技术调用Web服务GetCreateProgressService.asmx中的public ProgressInfo AcquireProgress()方法获取CollectionProgress 实例的运行信息并显示给用户,

具体的页面数据截取类为System.Net下的 WebRequest ,WebClient ,WebResponse等,采用WebClient类来下载文件,图片等.

下面是Work方法的代码框架:
   try
    {
        try
        {
            //具体操作
        }
        catch (Exception exception)
        {
            this.m_ErrorInfo = exception.Message;
        }
    }
    finally
    {
        if (this.CreateThread != null)
        {
            this.CreateThread.Abort();
        }
    }

通过new Thread(new ThreadStart(this.Work)); 启动的线程是非池线程,即不是Asp.net服务进程线程池的线程