Question

jquery 怎么 使用 正则表达式 提取 字符串中的时间

例如字符串20-Sep-2018 14:58:39.686 信息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
20-Sep-2018 14:58:39.693 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache\apache-tomcat-8.0.50\webapps\manager has finished in 293 ms
20-Sep-2018 14:58:39.693 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory E:\apache\apache-tomcat-8.0.50\webapps\ROOT
20-Sep-2018 14:58:40.008 信息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR w

Answer 1

var s = '20-Sep-2018 14:58:39.686 信息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them.'+
'20-Sep-2018 14:58:39.693 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache\apache-tomcat-8.0.50\webapps\manager has finished in 293 ms'+
'20-Sep-2018 14:58:39.693 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory E:\apache\apache-tomcat-8.0.50\webapps\ROOT'+
'20-Sep-2018 14:58:40.008 息 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR w';

s.match(/\d{2}:\d{2}:\d{2}\.\d{3}(?=\s+信息)/g);

追问

首先感谢回复，我看了下后缀这个能换个写法么，因为后缀可能各种求情况，还有时间格式，这个能多提供几个么，在match里或则，匹配获取几种常见的时间格式，麻烦给回复下，我提高了悬赏分数，谢谢。

追答

还是要要据你的实际情况, 就算加了其它时间格式,如果用不到也没用,还影响性能,最好看看有没有什么地方是固定不变的.

Answer 2

你给的例子的字符串有规律啊。日期都在信息两个字前面。如果真实情况也是这样就简单了。截取信息前面多少位就行了啊