java - 使用 RSS 项目的 getValue 获取 标签中的字符串 - Android

Question

如何获取 <image> 中的字符串带有 getValue 的标签？ <image>https://i2.cnnturk.com/i/cnnturk/75/720x490/5e6f7a9a70380e0cc8f49313</image>

我需要https://i2.cnnturk.com/i/cnnturk/75/720x490/5e6f7a9a70380e0cc8f49313作为值。

我能够显示图像，如果它是 <media:content url=""/> <media:thumbnail url=""/> <enclosure url=""/>并且需要显示<image>也是。

还有什么方法可以将 RSS 发布日期 GMT 格式化为 GMT+3？我需要显示为不同的时区。

RSS 项目:

<item>
<guid isPermaLink="true">5e6f79fe70380e0cc8f49311</guid>
<link>https://www.cnnturk.com/turkiye/istanbul-barosundan-koronaviruse-karsi-avukatlara-acil-mesaj</link>
<title>
<![CDATA[ İstanbul Barosu&#39;ndan koronavirüs&#39;e karşı avukatlara &#39;acil&#39; mesaj ]]>
</title>
<description>
<![CDATA[ İstanbul Barosu Başkanlığı Koronavirüs nedeniyle &quot;Acil&quot; başlığıyla üye avukatlara mesaj attı. Mesajda duruşmaların 14 Nisan 2020 tarihinden sonra görüleceği, avukatlara bu süreçte dava açılmaması önerildi. ]]>
</description>
<pubDate>Mon, 16 Mar 2020 16:09:49 GMT</pubDate>
<atom:link href="https://www.cnnturk.com/turkiye/istanbul-barosundan-koronaviruse-karsi-avukatlara-acil-mesaj"/>
<image>https://i2.cnnturk.com/i/cnnturk/75/720x490/5e6f7a9a70380e0cc8f49313</image>
</item>

这是 Android 代码:

需要帮助

else if (qName.equalsIgnoreCase("image")) { //NEW ADDITION
            currentState = State.media;
                String attrValue = attributes.getValue("WHAT");
                item.setThumburl(attrValue);

_完整代码

@Override
    public void startElement(final String uri, final String localName, 
            final String qName, final Attributes attributes)
            throws SAXException {
        currentState = State.unknown;
        tagContent = new StringBuilder();
        if (localName.equalsIgnoreCase("item") || localName.equalsIgnoreCase("entry")) {
            itemFound = true;
            item = new RSSItem();
            currentState = State.unknown;
        } else if (qName.equalsIgnoreCase("title")) {
            currentState = State.title;
        } else if (qName.equalsIgnoreCase("description") || qName.equalsIgnoreCase("content:encoded") || qName.equalsIgnoreCase("content")) {
            currentState = State.description;
        } else if (qName.equalsIgnoreCase("link") || qName.equalsIgnoreCase("origLink")) {
            currentState = State.link;
        } else if (qName.equalsIgnoreCase("pubdate") || qName.equalsIgnoreCase("published")) {
            currentState = State.pubdate;
        } else if (qName.equalsIgnoreCase("image")) { //NEW ADDITION
        currentState = State.media;
            String attrValue = attributes.getValue("WHAT");
            item.setThumburl(attrValue);
        } else if (qName.equalsIgnoreCase("media:thumbnail")) {
            currentState = State.media;    
            String attrValue = attributes.getValue("url");
            item.setThumburl(attrValue);
        } else if (qName.equalsIgnoreCase("media:content")){
            currentState = State.media;   
            String attrValue = attributes.getValue("url");
            if (attributes.getValue("type") == null || attributes == null){
                return;
            } else if (attributes.getValue("type").startsWith("image")){
                item.setThumburl(attrValue);
            } else if (attributes.getValue("type").startsWith("video")){ 
                item.setVideourl(attrValue);
            } else if (attributes.getValue("type").startsWith("audio")){ 
                item.setAudiourl(attrValue);
            } 
        } else if (qName.equalsIgnoreCase("enclosure")){
            currentState = State.media;   
            String attrValue = attributes.getValue("url");
            if (attributes == null || attributes.getValue("type") == null) {
                return;
            } else if (attributes.getValue("type").startsWith("image")){
                item.setThumburl(attrValue);
            } else if (attributes.getValue("type").startsWith("video")){ 
                item.setVideourl(attrValue);
            } else if (attributes.getValue("type").startsWith("audio")){ 
                item.setAudiourl(attrValue);
            } 
        }

    }

Answer 1

您可以尝试正则表达式 \<(\Qimage\E)\>(.*?)\<\/\1\>匹配相应的字符。可以匹配所有图像标签的内容。

public static void main(String[] args){
    String s="<image>https://x.com/image.jpg</image>"
            + "<image>https://x.com/image1.jpg</image>"
            + "<image>https://x.com/image2.jpg</image>";
    Pattern p = Pattern.compile("\\<(\\Qimage\\E)\\>(.*?)\\<\\/\\1\\>");
    Matcher m = p.matcher(s);
    while(m.find()){
     System.out.println(m.group(2));
    }
}

更新:我刚刚更新了代码。抱歉之前写错了。

如果您不想使用正则表达式

int record = 0;
while(record!=-1){
   int a = qName.indexOf("<image>",record);
   if(a==-1){
        break;
   }
   int b = qName.indexOf("</image>",a);
   String url=qName.substring(a+7,b+8);
   System.out.println(url);

}