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此代碼太奇怪了不工作:Pattern和Matcher是Android的
String description = Pattern.compile("<div.*?>(.*?)</div>", Pattern.DOTALL).matcher(html).group(1);
此代碼工作:
Pattern pdescription = Pattern.compile("<div.*?>(.*?)</div>", Pattern.DOTALL);
Matcher mdescription = pdescription.matcher(html);
if (mdescription.find()) {
String description = mdescription.group(1);
}
爲什麼我需要聲明兩個對象? logcat中寫道:
01-09 21:33:06.741: E/AndroidRuntime(1734): FATAL EXCEPTION: Thread-150
01-09 21:33:06.741: E/AndroidRuntime(1734): java.lang.IllegalStateException: No successful match so far
01-09 21:33:06.741: E/AndroidRuntime(1734): at java.util.regex.Matcher.ensureMatch(Matcher.java:607)
01-09 21:33:06.741: E/AndroidRuntime(1734): at java.util.regex.Matcher.group(Matcher.java:358)
01-09 21:33:06.741: E/AndroidRuntime(1734): at com.ibelieve.news.SearchEngine.Baidu.GetNews(Baidu.java:45)
01-09 21:33:06.741: E/AndroidRuntime(1734): at com.ibelieve.news.MainActivity$2$1.run(MainActivity.java:52)
01-09 21:33:06.741: E/AndroidRuntime(1734): at java.lang.Thread.run(Thread.java:856)
有點明白了,謝謝 – lhking