相关疑难解决方法(0)

我正在尝试获取有关系统上打印机的一些信息.
在Windows和Linux上,使用此代码,仅PrinterName填充属性:

PrintService[] printServices = PrintServiceLookup.lookupPrintServices(null,null);
for( PrintService printService : printServices ) {
    log.info("Found print service: "+printService);
    log.info(printService.getAttribute(PrinterName.class));
    log.info(printService.getAttribute(PrinterLocation.class));
    log.info(printService.getAttribute(PrinterMakeAndModel.class));
    log.info(printService.getAttribute(PrinterMessageFromOperator.class));
    log.info(printService.getAttribute(PrinterMoreInfo.class));
    log.info(printService.getAttribute(PrinterMoreInfoManufacturer.class));
    log.info(printService.getAttribute(PrinterState.class));
    log.info(printService.getAttribute(PrinterStateReasons.class));
    log.info(printService.getAttribute(PrinterURI.class));
}

使用toArray()它后的功能......

log.info("Found print service: "+printService);
for( Attribute a : printService.getAttributes().toArray() ) {
    log.info("* "+a.getName()+": "+a);
}

......这是结果:

Found print service: Win32 Printer : Brother MFC-9420CN BR-Script3
* color-supported: supported
* printer-name: Brother MFC-9420CN BR-Script3
* printer-is-accepting-jobs: accepting-jobs
* queued-job-count: 0

如何获取更多信息,例如打印机评论？