/// <summary>
/// 导出数据
/// </summary>
/// <returns></returns>
public ActionResult ExportData()
{
string sql = "";
long tbReportId = 0; //初始化tbReportId
string strResult = ""; //返回参数
//获得参数
string code = Request["code"].Trim();
if (!string.IsNullOrEmpty(Request["tbReportId"].Trim()))
{
tbReportId = Convert.ToInt64(Request["tbReportId"].Trim());
}
string queryParams = Request["queryParams"]; //查询条件
string url = Request["url"]; //页面url
url = System.Web.HttpUtility.UrlDecode(url);
string bootUrl = Request["bootUrl"]; //网站根目录（含虚拟层级）
string strHost = bootUrl.Substring(0, bootUrl.IndexOf(Request.Url.Authority.ToLower()) + Request.Url.Authority.Length); //http头
string exportWay = Request["exportWay"]; //导出方式
string fileFormat = Request["fileFormat"]; //文件格式
EasyMan.Dtos.ErrorInfo err = new EasyMan.Dtos.ErrorInfo();
err.IsError = false;
#region 逻辑部分
try
{
var report = _reportAppService.GetReportBase(code);
var expCfg = _exportAppService.GetExportConfig("report");//得到当前功能的配置信息
#region 默认值
int intWaitTime = 60000;
int intMaxRowNum = 1800000;
int intDataSize = 51200;
int intValidDay = 15;
string strPath = "upfiles";
if (expCfg.WaitTime == null || expCfg.WaitTime <= 0)
{
expCfg.WaitTime = intWaitTime;
}
if (expCfg.MaxRowNum == null || expCfg.MaxRowNum <= 0)
{
expCfg.MaxRowNum = intMaxRowNum;
}
if (expCfg.DataSize == null || expCfg.DataSize <= 0)
{
expCfg.DataSize = intDataSize;
}
if (expCfg.ValidDay == null || expCfg.ValidDay <= 0)
{
expCfg.ValidDay = intValidDay;
}
if (expCfg.Path == null || expCfg.Path.Trim() == "")
{
expCfg.Path = (bootUrl.Replace(strHost, "") + strPath).Replace("\\", "/").Replace("//", "/");
}
else
{
expCfg.Path = (bootUrl.Replace(strHost, "") + expCfg.Path).Replace("\\", "/").Replace("//", "/");
}
#endregion
sql = _reportAppService.GetSqlForField(code, queryParams, tbReportId, ref err);
if (err.IsError)
{
throw new Exception(err.Message);
}
int intCountSize = IntDataSize(sql, (report == null || report.DbServerId == null ? null : report.DbServerId));//返回当前集合条数
if (intCountSize <= 0)
{
return(Content("暂无无数据导出！"));
}
#region 抽样数据
double WaitTime = (double)expCfg.WaitTime;
DateTime datEndDate = DateTime.Now.AddMilliseconds(WaitTime);//最大等待时长
if (DateTime.Now > datEndDate && exportWay == "online")
{
return(Content("online导出时，由于数据量过大，在统计数据时超出online最大等待时长，请转为offline导出。是否转为offline导出？"));
}
long intPumping = GetPumpingSize(report.DbServerId, sql, intCountSize, WaitTime, exportWay);//通过样品数据预估数据集大小,如果小于等于0，表示超时
if (intPumping <= 0)
{
return(Content("online导出时，由于数据量过大，在数据抽样时超出online最大等待时长，请转为offline导出。是否转为offline导出？"));
}
#endregion
//判断是否为offline
if ((intCountSize > expCfg.MaxRowNum || intPumping > expCfg.DataSize) && exportWay == "online")
{
return(Content("online导出最大支持" + expCfg.MaxRowNum + "条数据及" + expCfg.DataSize + "KB字节,是否转为offline导出？"));
}
object objTopFields = "";
if (tbReportId != 0)
{
var topFieldArr = _tbReportAppService.GetFildTopList(tbReportId); //获取多表头字段集合
var fieldArr = _tbReportAppService.GetFildList(tbReportId); //获取字段集合
if (topFieldArr != null && topFieldArr.Count > 0)
{
objTopFields = GetTopFieldForExcel(topFieldArr.ToArray(), fieldArr.ToArray()); //多表头信息
}
}
//根据url得到module
var module = _moduleAppService.GetModuleByUrl(url);
string strExt = GetExtend(fileFormat.ToLower());
ExportDataModel exp = new ExportDataModel
{
ReportCode = code,
DisplayName = (module.Name == null || module.Name.Trim() == "" ? "" : module.Name + "_") + DateTime.Now.Ticks,
ExportWay = exportWay,
FromUrl = url,
FileFormat = strExt,
FilePath = expCfg.Path,
ValidDay = expCfg.ValidDay,
TopFields = objTopFields,//多表头信息
ColumnHeader = "",
Sql = sql,
DbServerId = report == null || report.DbServerId == null ? null : report.DbServerId,
FileName = (module == null ? "无名称" : module.Name) + "_" + DateTime.Now.Ticks,
Status = "生成中",
ObjParam = "",
IsClose = false
};
if (module.Id > 0)
{
exp.ModuleId = module.Id;
}
//针对两种形式的导出处理，待完善
switch (exportWay)
{
case "offline":
strResult = _exportAppService.OfflineExportData(exp, intCountSize);
break;
case "online":
strResult = strHost + _exportAppService.OnlineExportData(exp);
break;
default:
strResult = strHost + _exportAppService.OnlineExportData(exp);
break;
}
}
catch (Exception ex)
{
err.IsError = false;
string strHtml = "<script src=\"../Scripts/jquery-2.2.4.min.js\"></script>";
strHtml += "<script src=\"../Common/rootUrl.js\"></script>";
strHtml += "<script src=\"../Common/Scripts/errorPage/error.js\"></script>";
strHtml += "<script>$(function () {SendErrorInfo('导出提示','导出时，程序异常。代码：" + ex.Message + ",请联系管理员')})</script>";
return(Content(strHtml));
}
#endregion
return(Content(strResult));
}
