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社区首页 >问答首页 >Regex Java - Opennms HTTP收集器

问Regex Java - Opennms HTTP收集器
EN

Stack Overflow用户
提问于 2015-08-12 13:35:14
回答 2查看 286关注 0票数 1

更新:日志报告：

代码语言：javascript
复制
no attributes defined by the response: <a class="navbar-brand" href="http://foo.com/foo1">

        CSG - Client:DRS - Site:foo1 Gdns - August 13 2015 06:28 AM
        <i style="display:none">opennms9929opennms</i>
    </a>

中的regex似乎是不正确的。请有人为我的问题提供正确的标准吗？谢谢，

我一直试图使用OpenNMS设置一个HTTP收集器，以定期从网站收集一个数字，原始的HTML代码如下：

代码语言：javascript
复制
<!DOCTYPE HTML> 
............
<i style="display:none" >opennms781opennms</i>
............
</body>
</html>

目标是使用regex在opennms(number)opennms之间收集数字。

正如在OpenNMS HTTP收集器Wiki中解释的那样，我编辑了所需的XML文件，OpenNMS能够提取原始的HTML数据并将它们记录在日志中，但是我仍然收到以下警告/错误：

代码语言：javascript
复制
2015-08-13 14:18:39,946 WARN  [Collectd-Thread-49-of-50] o.o.n.c.HttpCollector: doCollection: More than 1 Content-Language headers received. Ignoring them!
2015-08-13 14:18:39,946 WARN  [Collectd-Thread-49-of-50] o.o.n.c.HttpCollector: doCollection: no attributes defined by the response: <a class="navbar-brand" href="http://foo.com/foo1">

    CSG - Client:DRS - Site:foo1 Gdns - August 13 2015 06:28 AM
    <i style="display:none">opennms9929opennms</i>
</a>
2015-08-12 12:08:14,771 WARN  [Collectd-Thread-10-of-50] o.o.n.c.HttpCollector: collect: http collection failed
org.opennms.netmgt.collectd.HttpCollector$HttpCollectorException: Unexpected exception caught during HTTP collection
    at org.opennms.netmgt.collectd.HttpCollector.doCollection(HttpCollector.java:307) ~[opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.HttpCollector.access$100(HttpCollector.java:107) ~[opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.HttpCollector$HttpCollectionSet.collect(HttpCollector.java:179) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.HttpCollector.collect(HttpCollector.java:139) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectionSpecification.collect(CollectionSpecification.java:274) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService.doCollection(CollectableService.java:388) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService.doRun(CollectableService.java:322) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService.access$000(CollectableService.java:70) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService$1.run(CollectableService.java:300) [opennms-services-16.0.2.jar:?]
    at org.opennms.core.logging.Logging.withPrefix(Logging.java:66) [org.opennms.core.logging-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService.run(CollectableService.java:296) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.scheduler.LegacyScheduler$1.run(LegacyScheduler.java:209) [opennms-services-16.0.2.jar:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_51]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_51]
    at org.opennms.core.concurrent.LogPreservingThreadFactory$3.run(LogPreservingThreadFactory.java:124) [opennms-util-16.0.2.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51]
2015-08-12 12:08:14,771 WARN  [Collectd-Thread-10-of-50] o.o.n.c.CollectableService: run: failed collection for 63/(foo's IP)/HttpSecCount/foo1
2015-08-12 12:08:14,771 ERROR [Collectd-Thread-10-of-50] o.o.n.c.CollectableService: Collection failed for an unknown reason (code 2.  Please review previous logs for this thread for details.  You can also open up an enhancement bug report (include your logs) to request that failure messages are logged for this type of error.
org.opennms.netmgt.collectd.CollectionFailed: Collection failed for an unknown reason (code 2.  Please review previous logs for this thread for details.  You can also open up an enhancement bug report (include your logs) to request that failure messages are logged for this type of error.
    at org.opennms.netmgt.collectd.CollectableService.doCollection(CollectableService.java:413) ~[opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService.doRun(CollectableService.java:322) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService.access$000(CollectableService.java:70) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService$1.run(CollectableService.java:300) [opennms-services-16.0.2.jar:?]
    at org.opennms.core.logging.Logging.withPrefix(Logging.java:66) [org.opennms.core.logging-16.0.2.jar:?]
    at org.opennms.netmgt.collectd.CollectableService.run(CollectableService.java:296) [opennms-services-16.0.2.jar:?]
    at org.opennms.netmgt.scheduler.LegacyScheduler$1.run(LegacyScheduler.java:209) [opennms-services-16.0.2.jar:?]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_51]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_51]
    at org.opennms.core.concurrent.LogPreservingThreadFactory$3.run(LogPreservingThreadFactory.java:124) [opennms-util-16.0.2.jar:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_51]

我想知道是否有人知道是什么导致了这个问题？

http-datacollection-config.xml

代码语言：javascript
复制
<http-collection name="sec-count">
    <rrd step="900">
      <rra>RRA:AVERAGE:0.5:1:2016</rra>
      <rra>RRA:AVERAGE:0.5:12:1488</rra>
      <rra>RRA:AVERAGE:0.5:288:366</rra>
      <rra>RRA:MAX:0.5:288:366</rra>
      <rra>RRA:MIN:0.5:288:366</rra>
    </rrd>
    <uris>
      <uri name="foo">
        <url path="/foo1/index.php"
         host="www.foo.com"
             user-agent="Mozilla/5.0 (Windows NT 6.3; rv:36.0) Gecko/20100101 Firefox/36.0" 
             matches="(?!opennms)(\d+)(?=opennms)" response-range="100-399" >
        </url>
        <attributes>
          <attrib alias="secondCount" match-group="1" type="gauge"/>
        </attributes>
      </uri>
    </uris>
  </http-collection>

包“collectd-configuration.xml：”下的Example1

代码语言：javascript
复制
<service name="HttpSecCount" interval="900000" user-defined="false" status="on">
            <parameter key="collection" value="sec-count"/>
        </service>
<collector service="HttpSecCount" class-name="org.opennms.netmgt.collectd.HttpCollector"/>
java
http
opennms
EN

回答 2

Stack Overflow用户

发布于 2015-08-13 13:52:23

(?!opennms)(\d+)(?=opennms)不是您要寻找的正则表达式：

​

​

试一试下面的方法：

代码语言：javascript
复制
(?<=opennms)(\d+)(?=opennms)

​

​

用https://www.debuggex.com/可视化

票数 0
EN

Stack Overflow用户

发布于 2015-08-13 21:43:24

错误是由不正确的正则表达式引起的，这是使用验证工具 wiki中提供的Java修复的。

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/31966805

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