Question

我在解析xml文件时遇到问题。虽然解析它到达最终结束标记，但从未满足END_DOCUMENT。这似乎是一个无限循环！但是，如果我通过“＆lt; foo＆gt; Hello World！＆lt; / foo＆gt;”更改字符串结果，那就可以了！

public void parseXMLData(String result) throws XmlPullParserException, IOException {
    XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
    factory.setNamespaceAware(true);
    factory.setFeature(XmlPullParser.FEATURE_PROCESS_DOCDECL, true);
    XmlPullParser xpp = factory.newPullParser();
    xpp.setInput( new StringReader ( result ) );
    int eventType = xpp.getEventType();

    String prefix = null, name = null, value = null;

    while (eventType != XmlPullParser.END_DOCUMENT) {

        switch(eventType) {
        case XmlPullParser.END_DOCUMENT: Log.i(TAG, "end document");
        break;
        case XmlPullParser.START_TAG : Log.i(TAG, "start tag"); Log.i(TAG, xpp.getName());
        break;
        case XmlPullParser.END_TAG : Log.i(TAG,"end tag"); Log.i(TAG, "end "+xpp.getName());
        break;
        case XmlPullParser.START_DOCUMENT : Log.i(TAG, "start document");
        break;
        case XmlPullParser.TEXT : Log.i(TAG, "text");
        break;
        case XmlPullParser.COMMENT:
        Log.i(TAG, "COMMENT");
        break;
        case XmlPullParser.DOCDECL:
        Log.i(TAG, "DOCDECL");
        break;
        case XmlPullParser.IGNORABLE_WHITESPACE:
        Log.i(TAG, "IGNORABLE_WHITESPACE");
        break;
        }
        eventType = xpp.next();
        Log.i(TAG, "next(): "+eventType);
    }

    Log.i(TAG, "Saiu do while");

    if(eventType == XmlPullParser.END_DOCUMENT) {
        Log.i(TAG, "end document");
    }


    showResults();
    //str_forecast = xpp.getText();


    Log.i(TAG, "Chamou showResults()");
    //return xpp.getText();
}

我的XML资源是http://weather.yahooapis.com/forecastrss?w=455823&u=c

谢谢

Answer 1

那它究竟在做什么，无限奔跑？如果仅仅为Log.i()案例打印END_DOCUMENT，那是因为您设置了while循环，以便在遇到END_DOCUMENT标记时立即退出。

Answer 2

尝试拨打

EVENTTYPE = xpp.next（）;

与其使用

eventType = xpp.nextToken（）;

xmlPullParser未达到END_DOCUMENT eventType

2 个答案: