正则表达式在一行中出现多次 [英] Regex multiple occurrences in one line

问题描述

如何使用Java中的正则表达式在一行中查找多个匹配项？

How would I go about finding multiple occurrences in one line using regex in Java?

我的代码（包含正则表达式）：

My code (regex included):

public static List<String> getTitles(String html) {
    List<String> titles = new ArrayList<String>();
    String pattern = "(.*)rel=\"bookmark\">(.*)</a></h2>";
    Pattern p = Pattern.compile(pattern);
    Matcher m = p.matcher(html);
    while (m.find())
        System.out.println(m.group(2));
    return titles;
}

我正在使用它的部分字符串：

Part of the string I'm using it on:

... title="Permalink to Jet Racing Extreme &#8211; Alpha Download" rel="bookmark">Jet Racing Extreme &#8211; Alpha Download</a></h2><div class="entry-meta"> Posted on <a ...

这适用于第一次出现（实际上是整个字符串），但由于整个字符串被认为是第一次出现，所以它没有进一步看。

This works for the first occurrence (the whole string actually), but since the whole string is considered the first occurence it's not looking further.

我希望你理解我想说的话，我不知道如何解释它更清晰..

I hope you understand what I'm trying to say, I don't know how to explain it much clearer..

- 编辑
我也尝试用这个替换正则表达式：

--EDIT I've also tried replacing the regex by this:

rel="bookmark">(.*)</a></h2>

我认为这样做只会考虑一行字符串的一部分，从而解决我的问题。然而，仅仅采取以下措施：

I thought doing this would only consider part of the one line string as an occurrence and thus fixing my problem. However, insteading of taking only:

rel="bookmark">Jet Racing Extreme &#8211; Alpha Download</a></h2>

出现后，它还需要一切吗？

As the occurence, it takes everything behind it also?

rel="bookmark">Jet Racing Extreme &#8211; Alpha Download</a></h2><divclass="entry-meta"> Posted on <ahref="http://www.alphabetagamer.com/jet-racing-extreme-alpha-download/" title="7:29 pm" rel="bookmark"> ...

推荐答案

String pattern = "rel=\"bookmark\">(.*?)</a></h2>";

                                      ^^   

让他们不贪心。

这篇关于正则表达式在一行中出现多次的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！