IDEA import jar package

1. Click the Project Structure of the Java project, and select Modules, click JARS or directories, and select the lib directory of WEB-INF, and click OK, provided that the jar packages have been copied to the lib directory

2. Under Project Structure, select Artifacts, and import the jar package in the lib directory. This way, when publishing to tomcat, the jar package that comes with it will also be published, and there will be no error when accessing JSP.

 

 

Graphical explanation to be continued. . .

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