在java程序中使用xpath清理wolfram响应

Question

尝试清除xpath的响应以摆脱xml

当我将字符串声明如下时，我的工作正常

    String xml = "<section><title>Result</title><sectioncontents>2:58:37 am GMT/IST  |  Friday, December 6, 2013</sectioncontents></section>";

但当我宣布为

时

    String response = WOLFRAM_ALPHA.query(s1);

我收到以下错误

[Fatal Error] :1:103: The markup in the document following the root element must be well-formed.
Exception in thread "main" org.xml.sax.SAXParseException: The markup in the document following the root element must be well-formed.
    at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:247)
    at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:287)
    at haha.main(haha.java:53)

字符串xml =“结果2:58：37 GMT / IST | 2013年12月6日星期五”;

这有效

    InputSource source = new InputSource(new StringReader(xml));

    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document document = db.parse(source);

    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();

    String msg = xpath.evaluate("/section/title", document);
    String status = xpath.evaluate("/section/sectioncontents", document);

    System.out.println("msg=" + msg + ";" + "status=" + status);

这不是

    WolframAlpha WOLFRAM_ALPHA = new WolframAlpha("L9PLQU-4L*****URY9");

    // declare the scanner
            Scanner input = new Scanner(System.in);
            //prompt the user to ask a question
            System.out.println("Please enter a query for wolfram");
            //read in the question and store it in string s1
            String s1 = input.nextLine();   


    String response = WOLFRAM_ALPHA.query(s1);

    System.out.println(response);
    InputSource res = new InputSource(new StringReader(response));

    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    Document document = db.parse(res);

    XPathFactory xpathFactory = XPathFactory.newInstance();
    XPath xpath = xpathFactory.newXPath();

    String msg = xpath.evaluate("/section/title", document);

    System.out.println(msg);