在java中打印PrintJobListener不会产生任何输出
我的代码:
PdfBook pdfBook = new PdfBook(decodePdf, printingDevice, attributeSet);
SimpleDoc doc = new SimpleDoc(pdfBook, DocFlavor.SERVICE_FORMATTED.PAGEABLE, null);
DocPrintJob printJob = printingDevice.createPrintJob();
PrintJobWatcher pjDone = new PrintJobWatcher(printJob);
try {
printJob.print(doc, attributeSet);
System.out.println(pjDone);
} catch (PrintException e) {
LogWriter.writeLog("Exception " + e + " printing");
}
try {
Thread.sleep(2000); //1000 milliseconds is one second.
} catch(InterruptedException ex) {
Thread.currentThread().interrupt();
}
decodePdf.closePdfFile();
System.out.println("Exiting printing process");
return null;
}
class PrintJobWatcher {
// true iff it is safe to close the print job's input stream
boolean done = false;
PrintJobWatcher(DocPrintJob job) {
// Add a listener to the print job
job.addPrintJobListener(new PrintJobAdapter() {
public void printJobCanceled(PrintJobEvent pje) {
allDone();
}
public void printJobCompleted(PrintJobEvent pje) {
allDone();
}
public void printJobFailed(PrintJobEvent pje) {
allDone();
}
public void printJobNoMoreEvents(PrintJobEvent pje) {
allDone();
}
void allDone() {
synchronized (PrintJobWatcher.this) {
done = true;
PrintJobWatcher.this.notify();
}
}
});
}
public synchronized void waitForDone() {
try {
while (!done) {
wait();
}
} catch (InterruptedException e) {
}
}
}
我的问题: 我想确定如果打印作业失败或完成,如何获取任何值?我尝试了上面的代码,但似乎无法从PrintJobListener获得任何值。我的目标是在特定的打印机上打印文档。如果打印作业仍未完成,则不会返回到主功能。某些打印作业需要2-3分钟才能完成。但是,即使打印作业尚未完成,它也会立即返回到主功能。在打印操作期间和之后,是否有方法从printJobLister获取值
我搜索了与此相关的问题,但没有一个问题给出了我想要的答案:(
共 (0) 个答案