Java的XML解析器似乎认为我的XML文档在根元素后面不是格式良好的。但我已经使用多个工具进行了验证,它们都不同意这一点。这可能是我的代码错误而不是文档本身的错误。如果您能提供任何帮助,我将不胜感激。
以下是我的Java方法:
以下是我尝试加载的XML文件:
如果有帮助的话,我正在尝试编写一个简单的GUI应用程序来管理任务清单,它可以读取和写入定义任务的XML文件。
以下是我的Java方法:
private void loadFromXMLFile(File f) throws ParserConfigurationException, IOException, SAXException {
File file = f;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db;
Document doc = null;
db = dbf.newDocumentBuilder();
doc = db.parse(file);
doc.getDocumentElement().normalize();
String desc = "";
String due = "";
String comment = "";
NodeList tasksList = doc.getElementsByTagName("task");
for (int i = 0; i tasksList.getLength(); i++) {
NodeList attributes = tasksList.item(i).getChildNodes();
for (int j = 0; i < attributes.getLength(); j++) {
Node attribute = attributes.item(i);
if (attribute.getNodeName() == "description") {
desc = attribute.getTextContent();
}
if (attribute.getNodeName() == "due") {
due = attribute.getTextContent();
}
if (attribute.getNodeName() == "comment") {
comment = attribute.getTextContent();
}
tasks.add(new Task(desc, due, comment));
}
desc = "";
due = "";
comment = "";
}
}
以下是我尝试加载的XML文件:
<?xml version="1.0"?>
<tasklist>
<task>
<description>Task 1</description>
<due>Due date 1</due>
<comment>Comment 1</comment>
<completed>false</completed>
</task>
<task>
<description>Task 2</description>
<due>Due date 2</due>
<comment>Comment 2</comment>
<completed>false</completed>
</task>
<task>
<description>Task 3</description>
<due>Due date 3</due>
<comment>Comment 3</comment>
<completed>true</completed>
</task>
</tasklist>
以下是Java为我抛出的错误信息:
run:
[Fatal Error] tasks.xml:28:3: The markup in the document following the root element must be well-formed.
May 17, 2010 6:07:02 PM todolist.TodoListGUI <init>
SEVERE: null
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:239)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:283)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:208)
at todolist.TodoListGUI.loadFromXMLFile(TodoListGUI.java:199)
at todolist.TodoListGUI.<init>(TodoListGUI.java:42)
at todolist.Main.main(Main.java:25)
BUILD SUCCESSFUL (total time: 19 seconds)
参考TodoListGUI.java:199行
doc = db.parse(file);
如果有帮助的话,我正在尝试编写一个简单的GUI应用程序来管理任务清单,它可以读取和写入定义任务的XML文件。
<
得到<
。 - psmears