jdk正则表达式的一些BUG

当正则表达式为(<script(.|//s)*?</script>)是出现数据量大的时候出现栈溢出的情况

 

 

<script src="http://static.tianyaui.com/js/global/prototype1.5.0.js" type="text/JavaScript"></script>---------

<script type="text/javascript" charset="utf-8" src="http://global.tianyaui.com/global/gnav/js/global-all.js"></script>---------

<script LANGUAGE="JavaScript" type="text/javascript">

var strPowerValue=__global.getPartCookie("right","web4");

if ((strPowerValue=="y")&&(__global.isOnline()==true)){

  strURL="http://www4.tianya.cn/new/techforum/Content.asp?idItem=763&idArticle=170164";

window.location.href=strURL;

}

</script>---------

Exception in thread "main" java.lang.StackOverflowError

at java.util.regex.Pattern$GroupTail.match(Pattern.java:4218)

at java.util.regex.Pattern$BranchConn.match(Pattern.java:4078)

at java.util.regex.Pattern$CharProperty.match(Pattern.java:3345)

at java.util.regex.Pattern$Branch.match(Pattern.java:4114)

at java.util.regex.Pattern$GroupHead.match(Pattern.java:4168)

at java.util.regex.Pattern$LazyLoop.match(Pattern.java:4357)

 

修正方法

(<script(.|//n)*?</script>)

n为换行符,这样可能占有的栈就小些吧