如何在没有物理打印机的情况下检查我的java打印方法

Question

我在我的应用程序中有html文档的打印方法.我无法访问物理打印机.因为我没有将计算机连接到物理打印机,所以我在代码中指定了"没有找到打印机服务".将计算机连接到没有物理打印机的打印机时,可以检查该功能是否正常工作？

     FileInputStream psStream = null;  
        try {  
            psStream = new FileInputStream("c:\\some.html");  
            } catch (FileNotFoundException ffne) {  
              ffne.printStackTrace();  
            }  
            if (psStream == null) {  
                return;  
            }  
        DocFlavor htmlStreamFlavor = new DocFlavor("text/html; charset=utf-16", "java.io.InputStream");  
        Doc myDoc = new SimpleDoc(psStream, htmlStreamFlavor, null);    
        PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();  
        PrintService[] services = PrintServiceLookup.lookupPrintServices(htmlStreamFlavor, aset);  

        // if several printers configured  
        PrintService myPrinter = null;  
        for (int i = 0; i < services.length; i++){ 
            String svcName = services[i].toString(); 
            System.out.println("service found: "+svcName);              
            if (svcName.contains("printer closest to me")){  
                myPrinter = services[i];  
                System.out.println("my printer found: "+svcName);  
                break;  
            }  
        }  

        if (myPrinter != null) {              
            DocPrintJob job = (DocPrintJob) myPrinter.createPrintJob();  
            try {  
            job.print(myDoc, aset);  

            } catch (Exception pe) {pe.printStackTrace();}  
        } else {  
            System.out.println("no printer services found");  
        }  

Answer 1

有些逻辑打印机可以创建pdf而不是打印.对于您的应用程序,它们看起来就像普通打印机.

请参阅以下相当长的选项列表:https://www.google.de/search？q = pdf +printer