在java中进行大量打印

时间:2012-03-16 11:55:37

标签: java printing type-conversion

我在使用java打印几个html文档时遇到问题。我需要为所有可打印文件显示 ONE 打印对话框的应用程序(文件计数可能很大)。首先,我尝试使用标准的java方法:

if (Desktop.isDesktopSupported()){
        Desktop desktop = Desktop.getDesktop();
        if (desktop.isSupported(Desktop.Action.PRINT))
        {
            try {
                File html1 = new File("c://file1.html");
                File html2 = new File("c://file2.html");
                desktop.print(html1);
                desktop.print(html2);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
}

但是我看到每个可打印文件的一个对话框,它不适合我。然后我尝试使用Java Printing API,但事实证明我的打印机不支持html文件的DocFlavor,我支持的DocFlavor列表如下所示:

image/gif; class="[B"
image/gif; class="java.io.InputStream"
image/gif; class="java.net.URL"
image/jpeg; class="[B"
image/jpeg; class="java.io.InputStream"
image/jpeg; class="java.net.URL"
image/png; class="[B"
image/png; class="java.io.InputStream"
image/png; class="java.net.URL"
application/x-java-jvm-local-objectref; class="java.awt.print.Pageable"
application/x-java-jvm-local-objectref; class="java.awt.print.Printable"
application/octet-stream; class="[B"
application/octet-stream; class="java.net.URL"
application/octet-stream; class="java.io.InputStream"

然后我尝试将html文件打印为图像(png,我画了Paint :)),我的代码:

PrintRequestAttributeSet pras =
                    new HashPrintRequestAttributeSet();
            DocFlavor flavor = DocFlavor.INPUT_STREAM.PNG;
            PrintRequestAttributeSet aset =
                    new HashPrintRequestAttributeSet();
            aset.add(MediaSizeName.ISO_A4);
            aset.add(new Copies(1));
            aset.add(Sides.ONE_SIDED);
            aset.add(Finishings.STAPLE);

            PrintService printService[] =
                    PrintServiceLookup.lookupPrintServices(flavor, pras);
            PrintService defaultService =
                    PrintServiceLookup.lookupDefaultPrintService();
            PrintService service = ServiceUI.printDialog(null, 200, 200,
                    printService, defaultService, flavor, pras);
            if (service != null) {
                try {
                    FileInputStream fis = new FileInputStream("c://test//test.png");
                    DocAttributeSet das = new HashDocAttributeSet();
                    Doc doc1 = new SimpleDoc(fis, flavor, das);

                    FileInputStream fis2 = new FileInputStream("c://test//test2.png");
                    DocAttributeSet das2 = new HashDocAttributeSet();
                    Doc doc2 = new SimpleDoc(fis2, flavor, das2);

                    DocPrintJob job1 = service.createPrintJob();
                    DocPrintJob job2 = service.createPrintJob();

                    try {
                        job1.print(doc1, pras);
                        job2.print(doc2, pras);
                    } catch (PrintException e) {
                        e.printStackTrace();
                    }
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                }
            }

它完美无缺,但从html到图像的转换并不是一个简单的问题。我尝试使用swing组件,实现Printable接口并使用Cobra库,但它需要在表单上显示文档,这对我来说并不是必需的,因为我需要在“静音”模式下打印,而无需打开文档。

有什么想法吗?

2 个答案:

答案 0 :(得分:0)

在这里,您可以找到通过Java代码访问打印机的完整代码。

它提供了像

这样的功能
1. cancel print job,
2. display print dialog,
3. print file etc..

http://anonsvn.icesoft.org//repo/icepdf/tags/icepdf-3.1.0/icepdf/viewer/src/org/icepdf/ri/common/PrintHelper.java

答案 1 :(得分:0)

最后,我选择这种方式:

  1. 将html文件转换为pdf。

  2. 在静音打印模式下使用PDFBox打印pdf文件。


  3. List<PDDocument> docs = new ArrayList<PDDocument>();
    try {
        docs.add(PDDocument.load("c://test/test.pdf"));
        docs.add(PDDocument.load("c://test/test2.pdf"));
    } catch (IOException e) {
        e.printStackTrace();
    }
    
    try {
        PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
        DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
        PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
        aset.add(MediaSizeName.ISO_A4);
        aset.add(new Copies(1));
        aset.add(Sides.ONE_SIDED);
        aset.add(Finishings.STAPLE);
    
        PrintService printService[] = PrintServiceLookup.lookupPrintServices(flavor, pras);
        PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
        PrintService service = ServiceUI.printDialog(null, 200, 200,
                printService, defaultService, flavor, pras);
    
        if (service != null && !docs.isEmpty()) {
            for (PDDocument doc : docs) {
                PrinterJob printJob = PrinterJob.getPrinterJob();
                printJob.setPrintService(service);
                doc.silentPrint(printJob);
            }
        }
    } catch (PrinterException e) {
        e.printStackTrace();
    } finally {
        for (PDDocument doc : docs) {
            if (doc != null) {
                try {
                    doc.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }