严重: Servlet.service() for servlet DispatcherServlet threw exception
java.lang.StackOverflowError at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.nextElement(ApplicationHttpRequest.java:950) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.nextElement(ApplicationHttpRequest.java:923) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:968) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.hasMoreElements(ApplicationHttpRequest.java:942) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEnumerator.findNext(ApplicationHttpRequest.java:967) at org.apache.catalina.core.ApplicationHttpRequest$AttributeNamesEn