This is a puzzler. I can run this exact same code as a stand-alone
program and it works fine. But when I run it on a server which has been
triggered by a web page, then I get the following error in the Chrome
browser console:
Access to XMLHttpRequest at
'http://desktop-60nl2pl:9998/GCad/createDimCtrlPlanPdf' from origin
'null' has been blocked by CORS policy: No 'Access-Control-Allow-Origin'
header is present on the requested resource.
The strange part to me is the error occurs on the following line:
|table.draw(); |which is running on the server and has nothing to do with the browser at
that time. Here is the full code for perspective
|publicStringcreateDimCtrlPlanPdf(EnDatabasedb,intuserId,Stringdata){StringretVal
="[]";try{// Set marginsfloatmargin =10;// Initialize
DocumentPDDocumentdoc =newPDDocument();PDPagepage
=newPDPage();doc.addPage(page);floatyStartNewPage
=page.getMediaBox().getHeight()-(2*margin);// Initialize
tablefloattableWidth
=page.getMediaBox().getWidth()-(2*margin);booleandrawContent
=false;floatyStart =yStartNewPage;floatbottomMargin =70;BaseTabletable
=newBaseTable(yStart,yStartNewPage,bottomMargin,tableWidth,margin,doc,page,true,drawContent);//
Create Header rowbe.quodlibet.boxable.Row<PDPage>headerRow
=table.createRow(15f);be.quodlibet.boxable.Cell<PDPage>cell
=headerRow.createCell(100,"Dimensional Control
Plan");table.addHeaderRow(headerRow);// Create 6-column 2nd header
rowrow =table.createRow(15f);cell =row.createCell(10,"Lower limit");cell
=row.createCell(10,"Upper limit");cell =row.createCell(15,"Rep.");cell
=row.createCell(15,"Target");cell =row.createCell(15,"Average
limit");cell =row.createCell(15,"Standard deviation max");cell
=row.createCell(20,"the drawing");table.draw();//CORS error occurs here
when running on a server which has been called by a web page// Close
Stream and save pdfFilefile
=newFile("DimCtrlPlan.pdf");System.out.println("Sample file saved at :
"+file.getAbsolutePath());//Files.createParentDirs(file);doc.save(file);doc.close();}catch(IOExceptionex){Logger.getLogger(EnCad.class.getName()).log(Level.SEVERE,null,ex);}catch(COSVisitorExceptionex){Logger.getLogger(EnCad.class.getName()).log(Level.SEVERE,null,ex);}returnretVal;}
Any suggestions? |||
