2

我需要使用 XmlPuppParser 解析这个 XML

<lfm status="ok">
    <events xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#" artist="Armin van Buuren" festivalsonly="0" page="1" perPage="50" totalPages="1" total="17">
        <event xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">
            <id>3353053</id>
            <title>ULTRA Buenos Aires 2013 - Dia 2</title>
            <artists>
                <artist>Armin van Buuren</artist>
                ...
                <artist>Adrian de Bernardi</artist>
                <artist>Manu Desrets</artist>
                <headliner>Armin van Buuren</headliner>
            </artists>
            <venue>
                <id>8778836</id>
                <name>Costanera Sur</name>
                <location>
                    <city>Ciudad de Buenos Aires</city>
                    <country>Argentina</country>
                    <street>Av. Espana 2230</street>
                    <postalcode/>
                    <geo:point>
                        <geo:lat>-34.61135</geo:lat>
                        <geo:long>-58.35838</geo:long>
                    </geo:point>
                </location>
                <url>http://www.last.fm/venue/8778836+Costanera+Sur</url>
                <website/>
                <phonenumber/>
                <image size="small">http://userserve-ak.last.fm/serve/34/54798997.jpg</image>
                ....
                <image size="extralarge">http://userserve-ak.last.fm/serve/252/54798997.jpg</image>
            </venue>
            <startDate>Sat, 23 Feb 2013 17:58:01</startDate>
            <description/>
            <image size="small">http://userserve-ak.last.fm/serve/34/83063099.jpg</image>
            ....
            <image size="extralarge">http://userserve-ak.last.fm/serve/252/83063099.jpg</image>
            <attendance>45</attendance>
            <reviews>0</reviews>
            <tag>lastfm:event=3353053</tag>
            <url>http://www.last.fm/festival/3353053+ULTRA+Buenos+Aires+2013+-+D%C3%ADa+2</url>
            <website>http://ultrabuenosaires.com/</website>
            <tickets></tickets>
            <cancelled>0</cancelled>
            <tags>
                <tag>electronic</tag>
            </tags>
        </event>
        <event xmlns:geo="http://www.w3.org/2003/01/geo/wgs84_pos#">
            ....
        </event>
    </events>
</lfm>

我需要解析这些信息：标题、艺术家、城市、国家、地理、日期和描述

while (parser.next() != XmlPullParser.END_TAG) {
            if (parser.getEventType() != XmlPullParser.START_TAG) {
                continue;
            }
            String tag = parser.getName();
            MyLog.d(TAG, "tag == " + tag);
            if (tag.equals("title")) {
                title = readTitle(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + title);
            } else if (tag.equals("artists")) {
                MyLog.d(TAG, "tag == " + tag);
            } else if (tag.equals("artist")) {
                if (artists == null) {
                    artists = readArtist(parser);
                } else {
                    artists += ", " + readArtist(parser);
                }
                MyLog.d(TAG, "tag == " + tag + ": " + artists);
            } else if (tag.equals("headliner")) {
                artists += ", " + readHeadliner(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + artists);
                parser.nextTag();
            } else if (tag.equals("venue")) {
                MyLog.d(TAG, "tag == " + tag);
            } else if (tag.equals("location")) {
                MyLog.d(TAG, "tag == " + tag);
            } else if (tag.equals("city")) {
                city = readCity(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + city);
            } else if (tag.equals("country")) {
                country = readCountry(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + country);
            } else if (tag.equals("geo:point")) {
                MyLog.d(TAG, "tag == " + tag);
            } else if (tag.equals("geo:lat")) {
                geoLat = readGeoLat(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + geoLat);
            } else if (tag.equals("geo:long")) {
                geoLong = readGeoLong(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + geoLong);
            } else if (tag.equals("startDate")) {
                date = readDate(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + date);
            } else if (tag.equals("description")) {
                description = readDescription(parser);
                MyLog.d(TAG, "tag == " + tag + ": " + description);
            } else {
                skip(parser);
            }

        }

private String readTitle(XmlPullParser parser) throws IOException,
            XmlPullParserException {
        MyLog.d(TAG, "readTitle");
        parser.require(XmlPullParser.START_TAG, ns, "title");
        String name = readText(parser);
        parser.require(XmlPullParser.END_TAG, ns, "title");
        return name;
    }

private String readText(XmlPullParser parser) throws IOException,
            XmlPullParserException {
        MyLog.d(TAG, "readText");
        String result = "";
        if (parser.next() == XmlPullParser.TEXT) {
            result = parser.getText();
            parser.nextTag();
        }
        return result;
    }

private void skip(XmlPullParser parser) throws XmlPullParserException,
            IOException {

        MyLog.d(TAG, "skip");

        if (parser.getEventType() != XmlPullParser.START_TAG) {
            throw new IllegalStateException();
        }
        int depth = 1;
        while (depth != 0) {
            switch (parser.next()) {
            case XmlPullParser.END_TAG:
                depth--;
                break;
            case XmlPullParser.START_TAG:
                depth++;
                break;
            }
        }
    }

我解析所有信息，日期和描述除外。我认为我的错误是解析位置后没有找到下一个标签。您能否更改我的代码或给我教程如何使用 XmlPullParser 解析复杂的 XML？

4

1 回答 1

0

我使用此代码运行良好.. 使用此代码例如..

在解析START_TAG时，当你解析标签时，取一个计数器变量并将其赋值为1，然后每当你得到标签时，将它加1。现在，在解析标签时，只需检查标签是否第一次出现，如果是然后解析所需的值。

 <spaces>
 <space>
 <name></name>
 <desc></desc>
<songs>
  <song>
    <name></name>
    <thumb></thumb>
  </song>
  <song>
    <name></name>
    <thumb></thumb>
  </song>
</songs>
</space>
</spaces>



 case XmlPullParser.START_TAG:
                name = parser.getName();
                if (name.equalsIgnoreCase("space")) {
                    cnt=1;
                    currentSpace = new Space();
                    System.out.println("space");

                } else if (currentSpace != null) {

                    if (name.equalsIgnoreCase("name")) 
                     {
                        currentSpace.setName(parser.nextText());
                        if(cnt==1)
                        {
                            // you have <name> from <space>
                        }
                        System.out.println(":::"+currentSpace.getName());
                        cnt++;
                    } else if (name.equalsIgnoreCase("id")) {
                        if (currentSpace.getId() == null) {
                            currentSpace.setId(parser.nextText());
                        }

                    }

                }

                break;
于 2013-02-25T07:05:22.443 回答