部署Tomcat8遇到的 “The method getDispatcherType() is undefined for the type HttpServletRequest” 問題

錯誤報告

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

An error occurred at line: [52] in the generated java file: [D:\apache-tomcat-8.0.15\work\Catalina\localhost\allRunServer\org\apache\jsp\register_jsp.java]
The method getDispatcherType() is undefined for the type HttpServletRequest

Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:103)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:199)
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:564)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
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)

解決方案

選中項目-》右鍵build path-》Configure build path->add library->server runtime