Java 正则表达式没有拾取多次出现的字符串

Question

我知道这里回答了各种各样的问题

• Match multiline text using regular expression
• Split text with Java-Regex in pairs with Regex over several lines
• Match multiline text using regular expression

我已经尝试过解决方案，并根据我的需要提出一个正则表达式。我有一个多行的文本字符串，既没有固定的起始位置，也没有特定行的结束位置。

<a name='bill_pay' href='javascript:goto(&#39;billpay&#39;);' class='fsdnav-top-menu-item'>Bill Pay <span class='fsdnav-ada-hidden'>link and menu. Press enter to navigate to this link. Press control + space to open submenu.

To move through submenu items press tab and then press up or down arrow.</span> </a>
<a name='bill_pay' href='javascript:goto(&#39;findmyinfo&#39;);' class='fsdnav-top-menu-item'>
Bill Pay <span class='fsdnav-ada-hidden'>link and menu. Press enter to navigate to this link. Press control + space to open submenu.

To move through submenu items press tab and then press up or down arrow.</span> </a>
<a name='bill_pay' href='#' onClick='OOLPopUp(&#39;/myaccounts/brain/redirect.go?target=findmyroutingnumber&#39;,&#39;ool&#39;,&#39;currentPage&#39;);return false;' class='fsdnav-top-menu-item'>
Bill Pay <span class='fsdnav-ada-hidden'>link and menu. Press enter to navigate to this link. Press control + space to open submenu.
To move through submenu items press tab and then press up or down arrow.</span> </a>

我想从javascript:goto("link") 中提取以下内容（链接值代表什么） 上面的正则表达式中有多个这样的事件，但我使用的正则表达式只返回一个事件。我想全部归还。我的代码块如下所示

private static final Pattern PATTERN_WITH_ASCII_QUOTES =
    Pattern.compile("^.*goto\\('(\\w+)'\\).*",
        Pattern.MULTILINE|Pattern.DOTALL);

// "str" is the string representation of the text above.
Matcher m = PATTERN_WITH_ASCII_QUOTES.matcher(str);
while (m.find()) {
    System.out.println(m.group(1));
}

结果输出始终为findmyinfo，仅此而已。

UPDATE - 所需的输出是

 billpay (from javascript:goto('billpay');)
 findmyinfo (from javascript:goto('findmyinfo');)

我也想提取

/myaccounts/brain/redirect.go?target=findmyroutingnumber','ool','currentPage from OOLPopUp('/myaccounts/brain/redirect.go?target=findmyroutingnumber','ool','currentPage')

Answer 1

您需要将OLLPopUp 和goto 添加到非捕获组中，以获取第一个、第二个和第三个值。

 ^.*?(?:goto|OOLPopUp)\('(.*?)'\).*

DEMO

String s = "<a name='bill_pay' href='javascript:goto(&#39;billpay&#39;);' class='fsdnav-top-menu-item'>Bill Pay <span class='fsdnav-ada-hidden'>link and menu. Press enter to navigate to this link. Press control + space to open submenu.\n" + 
        "To move through submenu items press tab and then press up or down arrow.</span> </a>\n" +
        "<a name='bill_pay' href='javascript:goto(&#39;findmyinfo&#39;);' class='fsdnav-top-menu-item'>\n" +
        "<a name='bill_pay' href='#' onClick='OOLPopUp(&#39;/myaccounts/brain/redirect.go?target=findmyroutingnumber&#39;,&#39;ool&#39;,&#39;currentPage&#39;);return false;' class='fsdnav-top-menu-item'>\n" +
        "Bill Pay <span class='fsdnav-ada-hidden'>link and menu. Press enter to navigate to this link. Press control + space to open submenu.";
Pattern regex = Pattern.compile("^.*?(?:goto|OOLPopUp)\\(&#39;(.*?)&#39;\\).*", Pattern.MULTILINE);
 Matcher matcher = regex.matcher(s);
 while(matcher.find()){
        System.out.println(matcher.group(1));
}

输出：

billpay
findmyinfo
/myaccounts/brain/redirect.go?target=findmyroutingnumber','ool','currentPage

或

String s = "<a name='bill_pay' href='javascript:goto(&#39;billpay&#39;);' class='fsdnav-top-menu-item'>Bill Pay <span class='fsdnav-ada-hidden'>link and menu. Press enter to navigate to this link. Press control + space to open submenu.\n" + 
        "To move through submenu items press tab and then press up or down arrow.</span> </a>\n" +
        "<a name='bill_pay' href='javascript:goto(&#39;findmyinfo&#39;);' class='fsdnav-top-menu-item'>\n" +
        "<a name='bill_pay' href='#' onClick='OOLPopUp(&#39;/myaccounts/brain/redirect.go?target=findmyroutingnumber&#39;,&#39;ool&#39;,&#39;currentPage&#39;);return false;' class='fsdnav-top-menu-item'>\n" +
        "Bill Pay <span class='fsdnav-ada-hidden'>link and menu. Press enter to navigate to this link. Press control + space to open submenu.";
Pattern regex = Pattern.compile("^(?:.*?goto\\(&#39;(\\w+)&#39;\\).*|.*?OOLPopUp\\(&#39;(.+?&#39;\\)).*)$", Pattern.MULTILINE);
 Matcher matcher = regex.matcher(s);
 while(matcher.find()){
        System.out.println(matcher.group(1) != null ?
                matcher.group(1) : matcher.group(2)
                );
}

输出：

billpay
findmyinfo
/myaccounts/brain/redirect.go?target=findmyroutingnumber','ool','currentPage')

IDEONE

Answer 2

您总是选择作为探针的组 (1)。使用

while (m.find()) {
    System.out.println(m.group());
}

Answer 3

您的模式有问题。试试这个：

Pattern.compile("goto\\('(\\w+)'\\)",
                    Pattern.MULTILINE|Pattern.DOTALL);

在打印结果的时候也可以试试：

System.out.println(m.group(1) + " ( from " + str.substring(m.toMatchResult().start(), m.toMatchResult().end()) + " )");

输出是这样的：

billpay (from goto('billpay');)
findmyinfo (from goto('findmyinfo');)