250 lines
9.5 KiB
C#
250 lines
9.5 KiB
C#
using FastReport;
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using FastReport.Export.Pdf;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.IO;
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using System.Text;
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using System.Timers;
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using System.Web;
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namespace BLL
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{
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public static class FastReportService
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{
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private static Timer tempReportCleanupTimer;
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/// <summary>
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/// 重置数据
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/// </summary>
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public static void ResetData()
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{
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HttpContext.Current.Session["ReportDataTables"] = null;
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HttpContext.Current.Session["ReportParameterValues"] = null;
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}
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public static void AddFastreportTable(DataTable dataTable)
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{
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List<DataTable> dataTables = (List<DataTable>)HttpContext.Current.Session["ReportDataTables"];
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if (dataTables == null)
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{
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dataTables = new List<DataTable>();
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}
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dataTables.Add(dataTable);
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HttpContext.Current.Session["ReportDataTables"] = dataTables;
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}
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public static void AddFastreportParameter(Dictionary<string, string> Dicparames)
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{
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HttpContext.Current.Session["ReportParameterValues"] = Dicparames;
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}
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/// <summary>
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/// 启动临时报表清理定时器，定期删除超过 1 小时的 PDF。
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/// </summary>
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public static void StartTempReportCleanupMonitor()
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{
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if (tempReportCleanupTimer != null)
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{
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tempReportCleanupTimer.Stop();
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tempReportCleanupTimer.Dispose();
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tempReportCleanupTimer = null;
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}
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CleanExpiredTempReports();
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tempReportCleanupTimer = new Timer
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{
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AutoReset = true,
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Interval = 1000 * 60 * 30
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};
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tempReportCleanupTimer.Elapsed += TempReportCleanupTimer_Elapsed;
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tempReportCleanupTimer.Start();
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}
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private static void TempReportCleanupTimer_Elapsed(object sender, ElapsedEventArgs e)
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{
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CleanExpiredTempReports();
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}
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/// <summary>
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/// 删除 File/Fastreport/Temp 下创建时间超过 1 小时的 PDF 临时文件。
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/// </summary>
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public static void CleanExpiredTempReports()
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{
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try
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{
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string tempDirectory = Path.Combine(Funs.RootPath, @"File\Fastreport\Temp\");
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if (!Directory.Exists(tempDirectory))
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{
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return;
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}
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DateTime expiredTime = DateTime.Now.AddHours(-1);
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foreach (string file in Directory.GetFiles(tempDirectory, "*.pdf", SearchOption.TopDirectoryOnly))
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{
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FileInfo fileInfo = new FileInfo(file);
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if (fileInfo.CreationTime < expiredTime)
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{
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fileInfo.Attributes = FileAttributes.Normal;
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fileInfo.Delete();
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}
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}
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}
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catch (Exception ex)
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{
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ErrLogInfo.WriteLog(ex, "FastReport临时报表清理", "FastReportService.CleanExpiredTempReports");
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}
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}
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/// <summary>
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/// 导出报表 PDF 到临时目录，并返回可访问的相对 URL。
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/// </summary>
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/// <param name="reportPath">报表模板路径，支持绝对路径或相对 Funs.RootPath 的路径。</param>
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public static string ExportReport(string reportPath)
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{
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List<DataTable> dataTables = (List<DataTable>)HttpContext.Current.Session["ReportDataTables"];
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Dictionary<string, string> parameterValues = (Dictionary<string, string>)HttpContext.Current.Session["ReportParameterValues"];
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return ExportReport(reportPath, dataTables, parameterValues);
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}
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/// <summary>
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/// 导出报表 PDF 到临时目录，并返回可访问的相对 URL。
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/// </summary>
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/// <param name="reportPath">报表模板路径，支持绝对路径或相对 Funs.RootPath 的路径。</param>
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/// <param name="dataTables">报表数据源集合。</param>
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/// <param name="parameterValues">报表参数集合。</param>
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public static string ExportReport(string reportPath, List<DataTable> dataTables, Dictionary<string, string> parameterValues)
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{
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string fullReportPath = GetReportFullPath(reportPath);
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if (string.IsNullOrEmpty(fullReportPath) || !File.Exists(fullReportPath))
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{
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throw new FileNotFoundException("打印模板不存在！", reportPath);
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}
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string relativeDirectory = @"File\Fastreport\Temp\";
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string tempDirectory = Path.Combine(Funs.RootPath, relativeDirectory);
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if (!Directory.Exists(tempDirectory))
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{
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Directory.CreateDirectory(tempDirectory);
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}
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string fileName = "report_" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + "_" + Guid.NewGuid().ToString("N") + ".pdf";
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string filePath = Path.Combine(tempDirectory, fileName);
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using (Report report = BuildPreparedReport(fullReportPath, dataTables, parameterValues))
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using (PDFExport pdfExport = new PDFExport())
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{
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// Web 打印先导出 PDF，前端用 iframe 装载后调用浏览器打印。
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pdfExport.PrintScaling = false;
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pdfExport.ShowPrintDialog = true;
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report.Export(pdfExport, filePath);
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}
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return "~/" + relativeDirectory.Replace("\\", "/") + fileName;
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}
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private static Report BuildPreparedReport(string reportPath, List<DataTable> dataTables, Dictionary<string, string> parameterValues)
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{
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FastReport.Utils.Config.WebMode = true;
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Report report = new Report();
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report.Load(reportPath);
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if (report.Dictionary.Connections.Count > 0)
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{
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var reportConnection = report.Dictionary.Connections[0];
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if (reportConnection.ConnectionString != Funs.ConnString)
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{
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// 打印时只替换本次报表连接，避免把运行环境连接串写回模板文件。
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reportConnection.ConnectionString = Funs.ConnString;
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}
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}
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if (dataTables != null && dataTables.Count > 0)
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{
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for (int i = 0; i < dataTables.Count; i++)
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{
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report.RegisterData(dataTables[i], dataTables[i].TableName);
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}
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}
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if (parameterValues != null && parameterValues.Count > 0)
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{
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foreach (KeyValuePair<string, string> kvp in parameterValues)
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{
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report.SetParameterValue(kvp.Key, kvp.Value);
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}
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}
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report.Prepare();
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return report;
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}
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private static string GetReportFullPath(string reportPath)
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{
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if (string.IsNullOrEmpty(reportPath))
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{
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return reportPath;
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}
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if (Path.IsPathRooted(reportPath))
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{
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return reportPath;
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}
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return Path.Combine(Funs.RootPath, reportPath.TrimStart('\\', '/'));
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}
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/// <summary>
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/// 合并报表后打印
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/// </summary>
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/// <param name="fastReportItems">报表实体集</param>
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/// <param name="path">导出的路径</param>
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public static void ExportMergeReport(List<Model.FastReportItem> fastReportItems, string path, string printType)
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{
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Report report = new Report();
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report.PrintSettings.ShowDialog = false; //隐藏弹窗
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FastReport.EnvironmentSettings settings = new EnvironmentSettings();
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settings.ReportSettings.ShowProgress = false; //隐藏进度条
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for (int i = 0; i < fastReportItems.Count; i++)
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{
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report.Load(Funs.RootPath + fastReportItems[i].ReportPath); //加载报表
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List<DataTable> dataTables = fastReportItems[i].DataTables;
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Dictionary<string, string> ParameterValues = fastReportItems[i].ParameterValues;
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if (dataTables != null && dataTables.Count > 0)
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{
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for (int j = 0; j < dataTables.Count; j++)
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{
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report.RegisterData(dataTables[j], dataTables[j].TableName);//绑定数据源
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}
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}
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if (ParameterValues.Count > 0)
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{
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foreach (KeyValuePair<string, string> kvp in ParameterValues)
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{
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report.SetParameterValue(kvp.Key, kvp.Value);//绑定参数
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}
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}
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if (i == 0)
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{
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report.Prepare();
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}
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else
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{
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report.Prepare(true);
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}
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}
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if (printType == "1")
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{
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FastReport.Export.Pdf.PDFExport exp = new FastReport.Export.Pdf.PDFExport();
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report.Export(exp, path);
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}
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else if (printType == "2")
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{
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FastReport.Export.OoXML.Word2007Export exportBase = new FastReport.Export.OoXML.Word2007Export();
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report.Export(export: exportBase, fileName: path.Replace(oldValue: "pdf", newValue: "docx"));
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}
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}
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}
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}
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