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我刚刚学习如何使用ListView并在此之后使用Java解析XML数据tutorial。但是,由于XML数据包含一些特殊字符,所以出现错误。有人可以在这个问题上给我建议吗?处理XML数据以解析Java中的特殊字符
这是我的XML数据外观。
<menu>
<item>
<id>1</id>
<question>What's my phone number?</question>
<answer>my phone number is "000-000-0000".</answer>
</item>
<item>
<id>2</id>
<question>What's my fax number?</question>
<answer>my fax number is "000-000-0000"</answer>
</item>
<item>
<id>3</id>
<question>What's my mailing address?</question>
<answer>my address here</answer>
</item>
<item>
<id>4</id>
<question>What's my web address?</question>
<answer>https://mywebsite.com/Login/Login.aspx?cID=53044&lng=en-US</answer>
</item>
</menu>
这里是Java类。
public class FaqsQuestionsActivity extends ListActivity {
static final String URL = "http://myweb.com/faq_list.xml";
// XML node keys
static final String KEY_ITEM = "item"; // parent node
static final String KEY_ID = "id";
static final String KEY_QUESTION = "question";
static final String KEY_ANSWER = "answer";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.faqs_questions);
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
XMLParser parser = new XMLParser();
String xml = parser.getXmlFromUrl(URL); // getting XML
Document doc = parser.getDomElement(xml); // getting DOM element
NodeList nl = doc.getElementsByTagName(KEY_ITEM);
for (int i = 0; i < nl.getLength(); i++) {
HashMap<String, String> map = new HashMap<String, String>();
Element e = (Element) nl.item(i);
map.put(KEY_ID, parser.getValue(e, KEY_ID));
map.put(KEY_QUESTION, parser.getValue(e, KEY_QUESTION));
map.put(KEY_ANSWER, parser.getValue(e, KEY_ANSWER));
menuItems.add(map);
}
ListAdapter adapter = new SimpleAdapter(this, menuItems, R.layout.faqs_question_list,
new String[] { KEY_QUESTION, KEY_ANSWER }, new int[] {R.id.question, R.id.answer});
setListAdapter(adapter);
ListView lv = getListView();
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String question = ((TextView) view.findViewById(R.id.question)).getText().toString();
String answer = ((TextView) view.findViewById(R.id.answer)).getText().toString();
Intent in = new Intent(getApplicationContext(), FaqsAnswersActivity.class);
in.putExtra(KEY_QUESTION, question);
in.putExtra(KEY_ANSWER, answer);
startActivity(in);
}
});
}
}
你xml有问题。它包含一个&,这是被禁止的,应该被替换为& – njzk2
请看看这个: http://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML –
ah..ok。非常感谢! – etrademom