PrintServiceLookup.lookupPrintService solution in JBoss AS 7

问题

I am trying to print a pdf document from my JSF web application.

When I call the method findPrinter() from main method, PrintServices are found, but when I call this method from web page PrintService are not found. Code mentioned below..

 public static void main(final String[] args) throws Exception {
    PrintTest printTest = new PrintTest();
    printTest.findPrinter();
 }

 public void findPrinter() {

    PrintService[] printServices = PrinterJob.lookupPrintServices();
    System.out.println("Print Services Length :: " + printServices.length);
    for (PrintService printService : printServices) {
        System.out.println("PrintService :: " + printService);
}

   <h:form>
    <p:commandButton value="Print" action="#{printTest.findPrinter()}"/> 
   </h:form>

Any suggestions...

回答1:

1. Add extra tag in modules/sun/jdk/main/module.xml of jbossAs as mentioned: path name="sun/print"

2. Open up resources.jar from your JRE, and extract
   META-INF/services/javax.print.PrintServiceLookup and copy to location modules/sun/jdk/main/service-loader-resources/META-INF/services of JbossAS.

3. Restart JBoss and run the application.

来源：https://stackoverflow.com/questions/16666786/printservicelookup-lookupprintservice-solution-in-jboss-as-7