Highchart第三方图表控件，导出默认是从官方地址导出，这样在无外网的条件下则导致导出失败，改进如下：
后台导出代码：
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public
partial class HighChart : System.Web.UI.Page{ protected
void Page_Load(object
sender, EventArgs e) { if
(!Page.IsPostBack) { if
(Request.Form["type"] != null
&& Request.Form["svg"] != null
&& Request.Form["filename"] != null) { string
tType = Request.Form["type"].ToString(); string
tSvg = Request.Form["svg"].ToString(); string
tFileName = Request.Form["filename"].ToString(); if
(tFileName == "") { tFileName = "chart"; } MemoryStream tData = new
MemoryStream(Encoding.UTF8.GetBytes(tSvg)); MemoryStream tStream = new
MemoryStream(); string
tTmp = new
Random().Next().ToString(); string
tExt = ""; string
tTypeString = ""; switch
(tType) { case
"image/png": tTypeString = "-m image/png"; tExt = "png"; break; case
"image/jpeg": tTypeString = "-m image/jpeg"; tExt = "jpg"; break; case
"application/pdf": tTypeString = "-m application/pdf"; tExt = "pdf"; break; case
"image/svg+xml": tTypeString = "-m image/svg+xml"; tExt = "svg"; break; } if
(tTypeString != "") { string
tWidth = Request.Form["width"].ToString(); Svg.SvgDocument tSvgObj = SvgDocument.Open(tData); switch
(tExt) { case
"jpg": tSvgObj.Draw().Save(tStream, ImageFormat.Jpeg); break; case
"png": tSvgObj.Draw().Save(tStream, ImageFormat.Png); break; case
"pdf": PdfWriter tWriter = null; Document tDocumentPdf = null; try { tSvgObj.Draw().Save(tStream, ImageFormat.Png); tDocumentPdf = new
Document(new
Rectangle((float)tSvgObj.Width, (float)tSvgObj.Height)); tDocumentPdf.SetMargins(0.0f, 0.0f, 0.0f, 0.0f); iTextSharp.text.Image tGraph = iTextSharp.text.Image.GetInstance(tStream.ToArray()); tGraph.ScaleToFit((float)tSvgObj.Width, (float)tSvgObj.Height); tStream = new
MemoryStream(); tWriter = PdfWriter.GetInstance(tDocumentPdf, tStream); tDocumentPdf.Open(); tDocumentPdf.NewPage(); tDocumentPdf.Add(tGraph); tDocumentPdf.CloseDocument(); } catch
(Exception ex) { throw
ex; } finally { tDocumentPdf.Close(); tDocumentPdf.Dispose(); tWriter.Close(); tWriter.Dispose(); tData.Dispose(); tData.Close(); } break; case
"svg": tStream = tData; break; } } Response.ClearContent(); Response.ClearHeaders(); Response.ContentType = tType; Response.AppendHeader("Content-Disposition", "attachment; filename="
+ tFileName + "."
+ tExt + ""); Response.BinaryWrite(tStream.ToArray()); Response.End(); } } }} |
exporting.src.js文件中，导出服务地址改为 url: ‘HighChart.aspx‘即可。
原文：http://www.cnblogs.com/kinger906/p/3545141.html