使用JAVA解析XML时出现问题

Question

在解析时遇到此错误“ [致命错误] customer_connect_posts.xml：39：209：实体“ nbsp”已被引用，但未声明。”

这是xml文件：

 <ROW>
          <Id>19281</Id>
          <Language_Id>0</Language_Id>
          <content><p>I wanted to share an update on the <a href="http://communities.rightnow.com/resources/255b24b92b" target="_blank">Idea Lab</a>. I&#39;ve actually&nbsp;<em>showing&nbsp;</em></p></content>
 </ROW>

这是用于解析的代码：该代码对其他xml文件有效，但对上述文件无效。在下面的代码中，我只是尝试获取“名称”和“内容”元素的文本节点。

public static void main(String[] args) {
        BlogParsing blogParsing = new BlogParsing();
         String filePath = "D:\\customer_connect_posts.xml";
            File xmlFile = new File(filePath);
            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder dBuilder;
            try {
                dBuilder = dbFactory.newDocumentBuilder();
                Document doc = dBuilder.parse(xmlFile);
                doc.getDocumentElement().normalize();
                System.out.println("Root element :" + doc.getDocumentElement().getNodeName());
                NodeList nodeList = doc.getElementsByTagName("ROW");
                //now XML is loaded as Document in memory, lets convert it to Object List

                List<BlogPost> entry = new ArrayList<BlogPost>();
             //   int count = 0;
                for (int i = 0; i < nodeList.getLength(); i++) {
                    entry.add(getEmployee(nodeList.item(i)));

                }
                //lets print Employee list information
                for (BlogPost emp : entry) {
                    System.out.println(emp.getContent());
                    System.out.println(emp.toString());
                }
            } catch (SAXException | ParserConfigurationException | IOException e1) {
                e1.printStackTrace();
            }
    }
            private static BlogPost getEmployee(Node node) {
                //XMLReaderDOM domReader = new XMLReaderDOM();
                BlogPost emp = new BlogPost();
                if (node.getNodeType() == Node.ELEMENT_NODE) {
                    Element element = (Element) node;
                    emp.setTitle(getTagValue("name", element));
                    emp.setContent(getTagValue("content", element));

                }
                String test = emp.getContent();

                List<String> listOfImg = (List<String>) BlogParsing.checkPostWithoutImage(emp.getContent());
                if(!listOfImg.isEmpty()){
                    //writeToExcel(emp.getTitle(),listOfImg);
                }

                return emp;
            }
            private static String getTagValue(String tag, Element element) {
                NodeList nodeList = element.getElementsByTagName(tag).item(0).getChildNodes();
                Node node = (Node) nodeList.item(0);
                return node.getNodeValue();
            }