Unable to compile class for JSP 解决方法

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最新推荐文章于 2025-04-11 21:42:07 发布

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本文介绍了一种解决Apache Tomcat服务器中JSP文件编译失败的问题，具体表现为HTTP状态500错误，并且提示方法getDispatcherType()未定义。通过调整servlet-api版本，成功解决了该问题。

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HTTP Status 500 - Unable to compile class for JSP:

type Exception report

message Unable to compile class for JSP:

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: [65] in the generated java file: [/usr/local/tomcat/work/Catalina/localhost/MyHDFSWeb/org/apache/jsp/index_jsp.java]
The method getDispatcherType() is undefined for the type HttpServletRequest

Stacktrace:
   org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:102)
   org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:198)
   org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:450)
   org.apache.jasper.compiler.Compiler.compile(Compiler.java:361)
   org.apache.jasper.compiler.Compiler.compile(Compiler.java:336)
   org.apache.jasper.compiler.Compiler.compile(Compiler.java:323)
   org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:570)
   org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:356)
   org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
   org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
   org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/8.0.18 logs.

Apache Tomcat/8.0.18

我是这样解决的：linux系统，eclipse工程里面有一个servlet-api-2.5-6.1.14.jar ，,然后tomcat8下的lib里面有一个servlet-api.jar，我后来用后面的servlet-api.jar代替前面的servlet-api-2.5-6.1.14.jar，结果就可以正常运行了，可能是这两个包有冲突，只能使用一个