以下示例将完成批量导出word的功能，由于涉及到批量，为了页面不‘假死’，用到了多线程。至于线程最多能有多少个，网上说没有限制，当时也懒得考虑了，直接多少份就用多少线程。
导出借用的是水晶报表（Crystal Reports）的现有资源，主要就是稳定，比前一篇导出word的不确定因素相比少了很多。最重要的是，这个页面很复杂，使用了三个子报表，水晶报表的强大之处完全体现出来了。
如果仔细看，你会发现，不只是导出word,最下面的方法是选择导出的格式，有5种，我所知道常用的，除了Cvs格式都有了，能够满足你的要求了吧。。
/// <summary>
/// 多线程操作
/// </summary>
class threadbody
{
Bill_Word billWord; //类
int threadId;//线程编号
string thCustId; //客户编号
string path;
public threadbody(Bill_Word _billWord, int _threadId, string _thCustId, string _path)
{
billWord = _billWord;
threadId = _threadId;
thCustId = _thCustId;
path = _path;
}
/// <summary>
/// 线程批量生成
/// </summary>
public void ThreadCreate()
{
ReportDocument myReport = new ReportDocument();
string reportPath = System.Threading.Thread.GetDomain().BaseDirectory + "Reports\\rpt\\rp_word.rpt";
myReport.Load(reportPath);
//数据填充
DataSet fillDS = billWord.GetFill(thCustId);
myReport.SetDataSource(fillDS);
string fileName = fillDS.Tables[3].Rows[0][7].ToString() + DateTime.Now.ToString("yyyyMMddhhssmm");
if (billWord.Export(path + fileName, "doc", myReport, thCustId)) //如果导出成功,保存记录
{
clsReports.fExportFilesAction(1,"",fileName + ".doc",fillDS.Tables[3].Rows[0][6].ToString(),thCustId,DateTime.Now,false,Convert.ToDateTime(fillDS.Tables[3].Rows[0][0]).Month + "月");
billWord.BArr_threadw[threadId] = true;//表明此线程结束。
}
}
}
/// <summary>
/// 页面类(经过精简,只要相关内容)
/// </summary>
public partial class Bill_Word : System.Web.UI.Page
{
public bool[] BArr_threadw; //每个线程结束标志
public bool BFinish;
public string[] custIds;
public string mes = "现在没信息啦";
private StringBuilder sb_suc = new StringBuilder("");
protected void Page_Load(object sender, EventArgs e)
{
if (Request["action"] == "1") //批量生成
{
//Thread thCreate = new Thread(new ThreadStart(ThreadCreate));
//thCreate.Start();
//ThreadCreate();
custIds = Request.Cookies["Bill_custs"].Value.Split(',');
//定义线程数组，启动接收线程
Thread[] threadSend = new Thread[custIds.Length]; //多线程
threadbody[] thBody = new threadbody[custIds.Length]; //类
for (int j = 0; j < custIds.Length; j++)
{
thBody[j] = new threadbody(this, j, custIds[j],Server.MapPath("..\\Bill\\Send\\"));
threadSend[j] = new Thread(new ThreadStart(thBody[j].ThreadCreate));
threadSend[j].Start();
}
BArr_threadw = new bool[custIds.Length];
MesShow();
}
}
/// <summary>
/// 所有线程结束提示
/// </summary>
public void MesShow()
{
while (true)//等待
{
BFinish = true;
for (int i = 0; i <custIds.Length; i++)
{
if (BArr_threadw[i] == false)//有未结束线程，等待
{
BFinish = false;
Thread.Sleep(100);
break;
}
}
if (BFinish == true)//所有线程均已结束，停止等待，
{
break;
}
}
if (BFinish == true)
{
//操作提示
int total = custIds.Length;
int suc = sb_suc.ToString().Split(',').Length;
int fail = total - suc;
//btnSend.AddScript(clsSystem.fGetExtMsgAlert("系统提示", string.Format("总共发送邮件{0}封,成功发送邮件{1}封,失败{2}封", total, suc, fail)));
//GridFiles.Reload();
mes = string.Format("总共生成对账单{0}份,成功生成{1}份,失败{2}份", total, suc, fail);
Response.Write("<script>alert('"+mes+"');</script>");
}
}
/// <summary>
/// 导出到服务器端
/// </summary>
/// <param name="FileName">文件保存路径</param>
/// <param name="Ext">扩展名(doc.pdf.rtf.xls.html)</param>
/// <param name="_report"></param>
public bool Export(string FileName, string Ext,ReportDocument _report,string Id)
{
try
{
ExportOptions exportOptions = new ExportOptions();
DiskFileDestinationOptions diskOptions = ExportOptions.CreateDiskFileDestinationOptions();
exportOptions.ExportFormatType = GetExportFormatType(Ext);
exportOptions.ExportDestinationType = ExportDestinationType.DiskFile;
diskOptions.DiskFileName = FileName + "." + Ext;
exportOptions.ExportDestinationOptions = diskOptions;
_report.Export(exportOptions);
if (sb_suc.ToString() == "")
sb_suc.Append(Id);
else
sb_suc.Append("," + Id);
return true;
}
catch
{
return false;
}
}
/// <summary>
/// 导出格式
/// </summary>
/// <param name="ext"></param>
/// <returns></returns>
private ExportFormatType GetExportFormatType(string ext)
{
switch (ext)
{
case "pdf":
return ExportFormatType.PortableDocFormat;
case "rtf":
return ExportFormatType.RichText;
case "doc":
return ExportFormatType.WordForWindows;
case "xls":
return ExportFormatType.Excel;
case "html":
return ExportFormatType.HTML32;
default:
return ExportFormatType.NoFormat;
}
}
}