我需要发送 pdf 文档以在 web 应用程序的服务器端打印,打印机完全支持 pdf 打印等,它也与服务器联网。pdf 也存储在服务器上。
我想要的是单击按钮,打印出pdf文件,目前我有以下代码:
//Server side printing
public class PrintDocument {
public void printText(String text) throws PrintException, IOException {
//Looks for all printers
//PrintService[] printServices = PrinterJob.lookupPrintServices();
PrintService service = PrintServiceLookup.lookupDefaultPrintService();
InputStream is = new ByteArrayInputStream(text.getBytes("UTF8"));
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
pras.add(new Copies(1));
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
Doc doc = new SimpleDoc(is, flavor, null);
DocPrintJob job = service.createPrintJob();
PrintJobWatcher pjw = new PrintJobWatcher(job);
job.print(doc, pras);
pjw.waitForDone();
is.close();
}
}
class PrintJobWatcher {
boolean done = false;
PrintJobWatcher(DocPrintJob 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;
System.out.println("Printing has successfully completed, please collect your prints)");
PrintJobWatcher.this.notify();
}
}
});
}
public synchronized void waitForDone() {
try {
while (!done) {
wait();
}
} catch (InterruptedException e) {
}
}
}
但是我有几个问题/问题,如何将 pdf 放入输入流中以便打印出来,我可以选择双面打印等选项,以及如何从 JSF Web 应用程序内部调用它
谢谢