解析SOAP响应返回null

时间:2013-11-25 03:46:04

标签: java xml parsing soap

String response = "<?xml version='1.0'?><soap:Envelope xmlns:soap='http://www.w3.org/2003/05/soap-envelope'><soap:Body><exch:Response xmlns:exch='http://applicant.ffe.org/exchange/1.0'>...</exch:Response></soap:Body></soap:Envelope>";

DocumentBuilderFactory dbf = null;
DocumentBuilder db = null;
org.w3c.dom.Document document = null;
try {
   dbf = DocumentBuilderFactory.newInstance();
   db = dbf.newDocumentBuilder();
   InputSource is = new InputSource(new ByteArrayInputStream(response.getBytes("UTF-8")));
   document = db.parse(is);

 } catch(ParserConfigurationException e){}
   catch(SAXException e){}

文档返回null。我尝试了不同的方法传递给InputSource,但文档仍然返回null。知道为什么会这样吗?

1 个答案:

答案 0 :(得分:1)

我刚试过,我可以获得元素名称和值。

        try {
                   dbf = DocumentBuilderFactory.newInstance();
                   db = dbf.newDocumentBuilder();
                   InputSource is = new InputSource(new ByteArrayInputStream(response.getBytes("UTF-8")));
                   document = db.parse(is);
                   System.out.println(document);//here we get null;
                       System.out.println(document.getNodeName());//here we get document;
                      for(int i =0 ; i<document.getChildNodes().getLength();i++)
                   System.out.println(document.getChildNodes().item(i).getChildNodes().item(i).getNodeName());
                }


    Output :

    [#document: null]
    document
    soap:Body

要解析SOAPResponse,我们可以javax.xml.soap.*遍历对象xml树。无论如何,我们可能需要解析SOAP Body中的元素。我们可以使用DOM格式解析这些非常简单的方式。