At Org.apache.jsp.index_jsp._jspinit (index_jsp.java:23) Exception resolution

Deploy the project, start tomcat Everything is OK, enter the project address after Tomcat reported the following error:

Java.lang.NullPointerExceptionat Org.apache.jsp.index_jsp._jspinit (index_jsp.java:23)

The cause is a jar package conflict under the project Jar package and Tomcat.

Delete the Jsp-api.jar and Servlet-api.jar two jar packages in the project (web-inf\lib\),

If not, check the. classpath file to see if it references the Jsp-api.jar and Servlet-api.jar two jar packages

Delete, restart Tomcat if available

If you still have an error, you need Clean A bit

If it doesn't work, restart MyEclipse.

If it doesn't work, restart the computer.

If not, ...

Itmyhome

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

At Org.apache.jsp.index_jsp._jspinit (index_jsp.java:23) Exception resolution