Java Print程序存在规范问题？

Question

我用这个

DocFlavor[] docFalvor = prnSvc.getSupportedDocFlavors();
        for (int i = 0; i < docFalvor.length; i++) {
            System.out.println(docFalvor[i].getMimeType());
        }

获取我的打印机的DocFlavor并返回

image/gif
image/gif
image/gif
image/jpeg
image/jpeg
image/jpeg
image/png
image/png
image/png
application/x-java-jvm-local-objectref
application/x-java-jvm-local-objectref
application/octet-stream
application/octet-stream
application/octet-stream

和米使用

import java.io.FileInputStream;
import java.io.FileNotFoundException;

import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintException;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.SimpleDoc;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.Copies;
import javax.print.attribute.standard.Sides;


public class PrintFileWithSpec {


    public static void printFile(String filename){

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

    if (psStream == null) {
        return;
    }

    DocFlavor psInFormat = DocFlavor.INPUT_STREAM.AUTOSENSE;
    Doc myDoc = new SimpleDoc(psStream, psInFormat, null);  
    PrintRequestAttributeSet aset = 
        new HashPrintRequestAttributeSet();
    aset.add(new Copies(5));
    //aset.add(MediaSize.ISO_A4); 
    aset.add(Sides.DUPLEX);
    PrintService[] services = 
      PrintServiceLookup.lookupPrintServices(psInFormat, aset);

    DocFlavor[] docFalvor = services[3].getSupportedDocFlavors();
    for (int i = 0; i < docFalvor.length; i++) {
        System.out.println(docFalvor[i].getMimeType());
    }

    if (services.length > 0) {
       DocPrintJob job = services[3].createPrintJob();
       try 
       {
           job.print(myDoc, aset);
       } catch (PrintException pe) {
  System.out.print(pe);

}
        }
        }

    public static void main(String [] args)
    {       
        printFile("D:/Resume.doc");
    }
}

代码打印文件bt，服务数组为空？

当我通过PrintServiceLookup.lookupPrintServices（null，null）;

它返回所有可用的打印机，当我打印文档时，它给出javax.print.PrintException：打印机不接受工作…

Answer 1

尝试卸下并添加打印机。另外，如果Docflavor为“自动检测”，则您传递的属性集将无效。您要打印哪种类型的文档？它在受支持的Docflavor中吗？如果docflavor不支持，则无法使用Java
Print Service API打印doc，pdf等。