java.lang.NoClassDefFoundError: javax/servlet/ServletRequest 에러 해결

HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/ServletRequest

type Exception report

message Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/ServletRequest

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

exception

org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/servlet/ServletRequest
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:972)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause

java.lang.NoClassDefFoundError: javax/servlet/ServletRequest
	javax.servlet.jsp.jstl.core.Config.set(Config.java:222)
	org.springframework.web.servlet.support.JstlUtils.exposeLocalizationContext(JstlUtils.java:97)
	org.springframework.web.servlet.view.JstlView.exposeHelpers(JstlView.java:135)
	org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:211)
	org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:262)
	org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1180)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:950)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	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/8.0.28 logs.

1. 아파치 재설치

2. JDK 재설치

1번을 했을 때는 문제가 해결되지 않았습니다.

2번을 하니 문제가 해결되었습니다.