Tomcat error: HTTP status 500 (wrapper cannot find servlet class) solution

• Java

Tomcat reports an error: HTTP status 500 - wrapper cannot find servlet class

HTTP Status 500 - Wrapper cannot find servlet class com. servlet. servlet. RegServlet or a class it depends on

type Exception report

message Wrapper cannot find servlet class com. servlet. servlet. RegServlet or a class it depends on

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

exception

root cause

java. lang.ClassNotFoundException: com. servlet. servlet. RegServlet

Solution:

After confirming that the servlet class is written correctly and the configuration file is correct, the following problems still occur:

Preparation: check whether it is generated normally in the \ WEB-INF \ classes directory Class file. If it is not generated, continue to the next step

Step 1: clear project - > clean project

Step 2: empty the Tomcat cache - > the directory file of the corresponding project under the corresponding directory \ work \ Catalina \ localhost

Step 3: republish the project

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