使用java在网络打印机中打印pdf
伙计们,我一直在用java打印pdf。 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();
}`
上面的代码初始化了打印活动,但问题是打印时我只得到编码字符。我无法得到确切的文件
第二,如果我将DocFlavor更改为SERVICE_格式。PAGEABLE,它会抛出一个错误
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,它会作为错误抛出
`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)`
所有这些我都在网络打印机上尝试。 任何帮助都是徒劳的
# 1 楼答案
只需将代码更改为使用AUTO_SENSE,如下所示