Unable to read TLD “META-INF/c.tld” from JAR file的

今天重新open project，以前是用jdk1.5、tomcat5开发、部署的，

本次使用jdk1.6、tomcat6部署，结果总是报错，启动时正常，

在通过浏览器访问项目时，出错，

错误信息如下;

2008-9-22 10:29:23 org.apache.catalina.core.StandardWrapperValve invoke

严重: Servlet.service() for servlet jsp threw exception

org.apache.jasper.JasperException: /index.jsp(2,0) Unable to read TLD "META-INF/c.tld" from JAR file "file:/D:/svnframe/web/WEB-INF/lib/standard-1.1.2.jar": org.apache.jasper.JasperException: Failed to load or instantiate TagLibraryValidator class: org.apache.taglibs.standard.tlv.JstlCoreTLV

         at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)

         at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)

         at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:88)

         at org.apache.jasper.compiler.Parser.processIncludeDirective(Parser.java:334)

         at org.apache.jasper.compiler.Parser.parseIncludeDirective(Parser.java:367)

         at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:475)

         at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1433)

         at org.apache.jasper.compiler.Parser.parse(Parser.java:133)

         at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:216)

         at org.apache.jasper.compiler.ParserController.parse(ParserController.java:103)

         at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:153)

         at org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)

         at org.apache.jasper.compiler.Compiler.compile(Compiler.java:294)

         at org.apache.jasper.compiler.Compiler.compile(Compiler.java:281)

         at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:566)

         at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)

         at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:337)

         at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)

         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

         at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)

         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:75)

         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)

         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)

         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)

         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)

         at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)

         at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)

         at java.lang.Thread.run(Thread.java:619)

…

解决路径;

在project-name/WEB-INF/lib下jsp-api.jar，就算是在eclipse中Build Path下接触此文件，引入tomcat6中的JSP-API.JAR . SERVLET-API.JAR，

也是不可以的，最后删除project下的此jar，问题解决。

引文如下;

引用

Unable to read TLD “META-INF/c.tld” from JAR file
I installed the lastest version of JasperServer on my my brand new server based on tomcat6 with jdk6 but on the first page I got the message “Unable to read TLD “META-INF/c.tld” from JAR file…”.

My first try was to downgrade tomcat and jdk to a previous version andit seemed to work. I first thought in a bug somewhere in tomcat and after some time (20 minutes of my precious time!!!!!) my attention got capured by a message in catalina.out “.. file geronimo.jar skiped … contains Servet violation spec….. ”

So JasperServer contains in WEB-INF/lib some servlet libraries?!?! Could be possible it’s not a war made by me so somebody could have made some mistake. Listing the files in WEB-INF/lib i found the entire world of web libraries, included jsp-api. Yes this is the problem!

Tomcat excludes genonimo.jar because it contains Servlet api’s but loads jsp-api located in WEB-INF/lib because no checkis made. No jsp can be compiled because jasper (not jasper reports) compiles from a classloader and jsp-api are located in a different classloader.

Removig jsp-api everything works fine again.

URL：http://blog.ilz.it/?p=3

评论

13 楼 wjy20150716 2017-12-05  

我遇到的问题，删除哪个都不行，最后实在没办法了，就用了Tomcat 5

12 楼 iijjll 2014-02-12  

crystal1205 写道

RonQi 写道

google搜索“Unable to read TLD "META-INF/c.tld" from JAR file”找到这里，一开始以为是jstl的jar包问题，移除lib下的jsp-api.jar和servlet-api.jar就好了，谢谢

这个我必须要登录，必须顶下！
解决实际问题的好帖啊。
我以为build path下remove掉就行。没想到tomcat下还有这东东，必须删掉然后OK！
报了别的错，我还以为jstl jar版本问题不对呢。

可能是tomcat下的包和工程下的包有冲突吧？

11 楼 iijjll 2014-02-12  

oh，yeah！ get it。问题解决了！

10 楼 crystal1205 2013-09-25  

RonQi 写道

google搜索“Unable to read TLD "META-INF/c.tld" from JAR file”找到这里，一开始以为是jstl的jar包问题，移除lib下的jsp-api.jar和servlet-api.jar就好了，谢谢

这个我必须要登录，必须顶下！
解决实际问题的好帖啊。
我以为build path下remove掉就行。没想到tomcat下还有这东东，必须删掉然后OK！
报了别的错，我还以为jstl jar版本问题不对呢。

9 楼 xp2wenjing 2012-05-25  

谢谢了，至少解决了我的问题

8 楼 d02540315 2011-07-28  

I have fixed it, thanks.
By the way, how to let maven exclude jsp-servlet.jar while building war package?

7 楼 superzhouych 2011-07-21  

果然是这样。。。多谢。不过，为什么？

6 楼 RonQi 2011-03-07  

google搜索“Unable to read TLD "META-INF/c.tld" from JAR file”找到这里，一开始以为是jstl的jar包问题，移除lib下的jsp-api.jar和servlet-api.jar就好了，谢谢

5 楼 aittjack 2011-02-27  

问题解决了，感谢通过google找到这篇文章

4 楼 luoting2762 2010-07-09  

问题解决了。谢谢

3 楼 ioworker 2010-03-08  

果然删除那个jsp-api.jar就OK了， 谢谢！

2 楼 andy54321 2009-06-16  

yajie 写道

你写的文章是给自己看的吧？怎么看起来不明白？

呵呵；
如果你碰到同样的问题，顺着Google来到这里，你就明白啦；
自己碰到、搞了半天的东东就记了下来，方便自己、方便别人吧

1 楼 yajie 2009-05-22  

你写的文章是给自己看的吧？怎么看起来不明白？