Java印刷。奇妙なwymbolsどこの印刷PDF

Question

問題： ネットワークプリンタでPDFファイルを印刷したいと思います。 txtファイルや文字列の印刷に問題はありませんが、PDF/JEPG/DOCファイルを印刷しようとすると問題が発生します。

PRINTER：サムスンSCX-6545シリーズPCL

CODE：PRINTED PDF OF

public static void printFile(String filename) throws IOException { 

    FileInputStream psStream = null; 
    try { 
     psStream = new FileInputStream(filename); 
    } catch (FileNotFoundException ffne) { 
    } 

    if (psStream == null) { 
     return; 
    } 
    int count = 0; 

    DocFlavor psInFormat = DocFlavor.BYTE_ARRAY.AUTOSENSE; 
    Doc myDoc = new SimpleDoc(psStream, psInFormat, null); 
    PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet(); 
    aset.add(new Copies(1)); 
    // aset.add(MediaSize.ISO_A4); 
    // aset.add(Sides.DUPLEX); 
    PrintService[] services = PrintServiceLookup.lookupPrintServices(psInFormat, null); 
    for (int i = 0; i < services.length; i++) { 
     if (services[i].getName().contains("SCX")) { 
      count = i; 
     } 
    } 
    DocFlavor[] docFalvor = services[count].getSupportedDocFlavors(); 
    for (int i = 0; i < docFalvor.length; i++) { 
     System.out.println(docFalvor[i].getMimeType()); 
    } 
    if (services.length > 0) { 
     System.out.println(Files.probeContentType(Paths.get(filename))); 
     DocPrintJob job = services[count].createPrintJob(); 
     try { 
      job.print(myDoc, aset); 
     } catch (PrintException pe) { 
      System.out.print(pe); 

     } 
    } 
    psStream.close(); 
} 

public static void main(String[] args) throws IOException { 
    printFile("C:/Users/artur.pakula/Documents/aaa.pdf"); 
} 

結果：PRINTED PNG OF PDF

結果：PNG

Answer 1

私はこの問題を解決します。

コード：

import org.apache.pdfbox.pdfparser.PDFParser; 
import org.apache.pdfbox.pdmodel.PDDocument; 
public static void printFile(String filename) throws IOException { 

    FileInputStream psStream = null; 
    try { 
     psStream = new FileInputStream(filename); 
    } catch (FileNotFoundException ffne) { 
    } 

    if (psStream == null) { 
     return; 
    } 
    int count = 0; 
    DocFlavor psInFormat = DocFlavor.INPUT_STREAM.AUTOSENSE; 

    Doc myDoc = new SimpleDoc(psStream, psInFormat, null); 
    PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet(); 
    aset.add(new Copies(1)); 
    // aset.add(new Copies(5)); 
    // aset.add(MediaSize.ISO_A4); 
    // aset.add(Sides.DUPLEX); 
    PrintService[] services = PrintServiceLookup.lookupPrintServices(psInFormat, null); 
    for (int i = 0; i < services.length; i++) { 
     if (services[i].getName().contains("ITE_LUB_MONO")) { 
      count = i; 
     } 
    } 
    DocFlavor[] docFalvor = services[count].getSupportedDocFlavors(); 
    for (int i = 0; i < docFalvor.length; i++) { 
     System.out.println(docFalvor[i].getMimeType()); 
    } 
    if (services.length > 0) { 
     System.out.println(Files.probeContentType(Paths.get(filename))); 
     System.out.println(services[count].getName()); 
     DocPrintJob job = services[count].createPrintJob(); 
     try { 
      // właściwy kod 
      PDFParser parser = new PDFParser(psStream); 
      PrinterJob job1 = PrinterJob.getPrinterJob(); 
      job1.setPrintService(services[count]); 
      PDDocument doc = PDDocument.load(filename); 
      doc.silentPrint(job1); 
      // właściwy kod koniec 

     } catch (PrinterException pe) { 
      System.out.print(pe); 

     } 
    } 
    psStream.close(); 
} 

public static void main(String[] args) throws IOException { 
    printFile("C:/Users/jakub.wojtczak/Desktop/aaa.pdf"); 
}