使用java在网络打印机中打印pdf

Question

伙计我在使用java打印pdf时遇到困难.我写的代码如下:

`

public static void main(String[] args) throws PrinterException, PrintException, IOException{
        DocFlavor docflavor = new DocFlavor.INPUT_STREAM ("application/octet-stream");
    //  DocFlavor docflavor = DocFlavor.SERVICE_FORMATTED.PAGEABLE;
/*      DocFlavor flavor = DocFlavor.SERVICE_FORMATTED.;*/
        PrintService printService = PrintServiceLookup.lookupDefaultPrintService();
        DocFlavor[] docF = printService.getSupportedDocFlavors();
        for(int i = 0; i<docF.length;i++){
            System.out.println(docF[i]);
        }
        FileInputStream fis = new FileInputStream("pathofpdffile");



        Doc pdfDoc = new SimpleDoc(fis, docflavor, null);


        DocPrintJob printJob = printService.createPrintJob();
        PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();

        aset.add(new Copies(1));
        aset.add(Sides.ONE_SIDED);
        printJob.print(pdfDoc,aset);

        fis.close();

}`

上面的代码启动了打印活动,但问题是我只能在打印中编码字符.我无法得到我的确切文件.

其次,如果我将DocFlavor更改为SERVICE_FORMATTED.PAGEABLE,则会引发错误

java.lang.IllegalArgumentException: data is not of declared type
at javax.print.SimpleDoc.<init>(Unknown Source)
at com.calculator.main.PrintingTest.main(PrintingTest.java:42)

第三,如果我将DocFlavor更改为INPUT_STREAM.PDF,它会抛出错误

`Exception in thread "main" sun.print.PrintJobFlavorException: invalid flavor
at sun.print.Win32PrintJob.print(Unknown Source)
at com.calculator.main.PrintingTest.main(PrintingTest.java:49)`

所有这些我正在尝试网络打印机.任何帮助都会gr8 ..

Answer 1

只需更改代码即可使用AUTO_SENSE,如下所示.

InputStream inputStream = new FileInputStream("C://test.pdf");
Doc doc = new SimpleDoc(inputStream, DocFlavor.INPUT_STREAM.AUTOSENSE,null);