Tuckey UrlRewrite 中的正则表达式

【问题标题】：Regex in Tuckey UrlRewriteTuckey UrlRewrite 中的正则表达式
【发布时间】：2015-01-15 17:31:35
【问题描述】：

我正在使用Tuckey URLRewrite，我需要一个接受除“/”或“\”之外的所有内容的规则

我写了一条规则，但是 tukey 显示无休止的异常并且没有加载页面

    <rule>
        <from>^/post/([^/\n\\]+)/type/([a-z]+)$</from>
        <to>/post/?slug=$1&amp;type=$2</to>
    </rule>

来自regexr 我已经验证了这个表达式“（[^/\n\]+）”将选择除“/”或“\”之外的所有内容，但我遇到了例外。我错过了什么吗？

以下是例外情况：

at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.apache.catalina.core.ApplicationHttpRequest.setAttribute(ApplicationHttpRequest.java:281)
    at org.tuckey.web.filters.urlrewrite.RuleBase.matchesBase(RuleBase.java:205)
    at org.tuckey.web.filters.urlrewrite.NormalRule.matches(NormalRule.java:92)
    at org.tuckey.web.filters.urlrewrite.RuleChain.doRuleProcessing(RuleChain.java:83)
    at org.tuckey.web.filters.urlrewrite.RuleChain.process(RuleChain.java:137)
    at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:144)
    at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
    at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:213)
    at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:171)
    at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
    at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
    at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:213)
    at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:171)
    at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
    at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
    at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
    at org.tuckey.web.filters.urlrewrite.NormalRewrittenUrl.doRewrite(NormalRewrittenUrl.java:213)
    at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:171)

。 . 继续..

【问题讨论】：

  • 除了“/”和^/post/([^/\n\\]+)/type/([a-z]+)$之外的所有东西都一样吗？
  • 我没听懂你在说什么，但我已经更新了我的问题
  • 遇到此异常时您输入了什么网址？
  • 它是localhost:8080/myapp/post-page.jsp/to-defeat-fear/type/random
  • 但是你的规则在开头匹配/post/，而你有post-page.jsp？

标签： java regex url-rewriting tuckey-urlrewrite-filter


【解决方案1】：

OP 有这样的规则：

<rule> 
<from>^/post</from> 
<to>/post/</to> 
</rule> 

<rule> 
<from>^/post/([^/]+)</from> 
<to>/post/?slug=$1</to> 
</rule> 

<rule> 
<from>^/post/([^/]+)/type/([a-z]+)$</from> 
<to>/post/?slug=$1&amp;type=$2</to> 
</rule>

显然问题在于这里的规则排序。从第一个模式开始：^/post 会覆盖以/post 开头的任何内容，并导致下面的模式（如^/post/([^/]+)/type/([a-z]+)$）被完全忽略。

这些规则需要像这样重新排序：

<rule> 
<from>^/post/([^/]+)/type/([a-z]+)$</from> 
<to>/post/?slug=$1&amp;type=$2</to> 
</rule> 

<rule> 
<from>^/post/([^/]+)</from> 
<to>/post/?slug=$1</to> 
</rule> 

<rule> 
<from>^/post</from> 
<to>/post/</to> 
</rule>

即将通用的包罗万象的类型规则置于特定的目标规则之下。

【讨论】：

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