Java-从System.in加载正确的XML

Question

I am trying to load an XML document from System.in in order to be able to pipe my program. But the XML doesn't seem to load correctly since I get a NullPointerExeption where my program is looking for root element. I am trying to use this solution .

Here is my code to load from System.in (never prints out "ok") :

org.jdom2.Document jdomDoc
public LoadFile(String fileLocation) {
    if (fileLocation.compareTo("System.in") == 0) {
        Scanner sc = new Scanner(System.in);
        log.info(sc.toString()); // debug purpose
        while (sc.hasNextLine()) {
            log.info("ok"); // debug purpose
            jdomDoc.addContent(new Element(sc.nextLine()+ "\n"));
        }
     }

And I give fileLocation " System.in " if no -i (input) parameter has been found. I run it from cmd with : myXml.xml|java -jar myProgramm.jar

Answer 1

好的，愚蠢的错误，我的命令中有简单的错字：忘记了键入 myXml.xml|java -jar myProgramm.jar