Java正则表达式提取两个单词之间的字符串

我有一根像这样的线

<br/><description>Using a combination of remote probes, (TCP/IP, SMB, HTTP, NTP, SNMP, etc...) it is possible to guess the name of the remote operating system in use, and sometimes its version.</description><br/><fname>os_fingerprint.nasl</fname><br/><plugin_modification_date>2012/12/01</plugin_modification_date><br/><plugin_name>OS Identification</plugin_name><br/><plugin_publication_date>2003/12/09</plugin_publication_date><br/><plugin_type>combined</plugin_type><br/><risk_factor>None</risk_factor><br/><solution>n/a</solution><br/><synopsis>It is possible to guess the remote operating system.</synopsis><br/><plugin_output><br/>Remote operating system : Microsoft Windows Server 2008 R2 Enterprise Service Pack 1<br/>Confidence Level : 99<br/>Method : MSRPC<br/><br/> <br/>The remote host is running Microsoft Windows Server 2008 R2 Enterprise Service Pack 1</plugin_output><br/>

使用远程探测组合（TCP/IP、SMB、HTTP、NTP、SNMP等），可以猜测正在使用的远程操作系统的名称，有时它的版本。
os_fingerprint.nasl
2012/12/01
os Identification
2003/12/09
组合
无
n/a
可以猜测远程操作系统。
远程操作系统：Microsoft Windows Server 2008 R2 Enterprise Service Pack 1
置信度：99
方法：MSRPC


远程主机正在运行Microsoft Windows Server 2008 R2企业服务包1

我想提取“远程操作系统：”并获取“Microsoft Windows Server 2008 R2企业服务包1”

远程操作系统：Microsoft Windows Server 2008 R2企业服务包1

所以我用

Pattern pattern = Pattern.compile("(?<=\\bRemote operating system :\\b).*?(?=\\b<br/>\\b)");

---

Pattern Pattern=Pattern.compile（（？在正则表达式中
：
之后和
\\b
之前没有空格

试着这样做：

Pattern.compile("(?<=\\bRemote operating system : \\b).*?(?=\\b<br/>\\b)");
//                                               ^additional space

Pattern.compile（“（？）？
请注意，通常不建议对标记语言使用正则表达式。
但是，在这里，您对特定的文本字符串使用正则表达式，而该字符串恰好位于标记内部，所以我想这是可以的。
尝试以下模式：
“*”远程操作系统：（.*）
“

publicstaticvoidmain（字符串[]args）引发异常{
String s=“
使用远程探测组合（TCP/IP、SMB、HTTP、NTP、SNMP等…）可以猜测正在使用的远程操作系统的名称，有时还可以猜测其版本。
os_fingerprint.nasl
2012/12/01
os Identification
2003/12/09
组合
无
n/a
可以猜测远程操作系统。

远程操作系统：Microsoft Windows Server 2008 R2企业服务包1
置信度：99
方法：MSRPC


远程主机正在运行Microsoft Windows Server 2008 R2企业服务包1
；
Pattern=Pattern.compile（“.*远程操作系统：（.*？）
”）；
匹配器m=模式匹配器；
if（m.find（））{
系统输出println（m.group（1））；
}
else System.out.println（“未找到”）；
}
尝试下一步：

if (str.matches("^.*Remote operating system : ([^<]*).*$")) {
    System.out.println(
        str.replaceAll("^.*Remote operating system : ([^<]*).*$", "$1")
    );
}

if（str.matches（“^.*”远程操作系统：([^
String test = 
        "<br/><description>Using a combination of remote probes, " +
        "(TCP/IP, SMB, HTTP, NTP, SNMP, etc...) it is possible to guess " +
        "the name of the remote operating system in use, and sometimes " +
        "its version.</description><br/><fname>os_fingerprint.nasl</fname>" +
        "<br/><plugin_modification_date>2012/12/01</plugin_modification_date>" +
        "<br/><plugin_name>OS Identification</plugin_name><br/>" +
        "<plugin_publication_date>2003/12/09</plugin_publication_date><br/>" +
        "<plugin_type>combined</plugin_type><br/><risk_factor>None</risk_factor>" +
        "<br/><solution>n/a</solution><br/><synopsis>It is possible to guess the " +
        "remote operating system.</synopsis><br/><plugin_output><br/>Remote operating " +
        "system : Microsoft Windows Server 2008 R2 Enterprise Service Pack 1<br/>" +
        "Confidence Level : 99<br/>Method : MSRPC<br/><br/> <br/>The remote host is " +
        "running Microsoft Windows Server 2008 R2 Enterprise Service Pack 1" +
        "</plugin_output><br/>";
        Pattern pattern = Pattern.compile("Remote\\soperating\\ssystem\\s:\\s(.+?)\\<br/>");
        Matcher matcher = pattern.matcher(test);
        if (matcher.find()) {
            System.out.println(matcher.group(1));
        }

Microsoft Windows Server 2008 R2 Enterprise Service Pack 1

public static void main(String[] args) throws Exception {
    String s = "<br/><description>Using a combination of remote probes, (TCP/IP, SMB, HTTP, NTP, SNMP, etc...) it is possible to guess the name of the remote operating system in use, and sometimes its version.</description><br/><fname>os_fingerprint.nasl</fname><br/><plugin_modification_date>2012/12/01</plugin_modification_date><br/><plugin_name>OS Identification</plugin_name><br/><plugin_publication_date>2003/12/09</plugin_publication_date><br/><plugin_type>combined</plugin_type><br/><risk_factor>None</risk_factor><br/><solution>n/a</solution><br/><synopsis>It is possible to guess the remote operating system.</synopsis><br/><plugin_output><br/>Remote operating system : Microsoft Windows Server 2008 R2 Enterprise Service Pack 1<br/>Confidence Level : 99<br/>Method : MSRPC<br/><br/> <br/>The remote host is running Microsoft Windows Server 2008 R2 Enterprise Service Pack 1</plugin_output><br/>";

    Pattern pattern = Pattern.compile(".*Remote operating system : (.*?)<br/>");
    Matcher m = pattern.matcher(s);
    if (m.find()) {
      System.out.println(m.group(1));
    }
    else System.out.println("Not found");
}

if (str.matches("^.*Remote operating system : ([^<]*).*$")) {
    System.out.println(
        str.replaceAll("^.*Remote operating system : ([^<]*).*$", "$1")
    );
}