The import javax.servlet can't be resolved

If you are getting the error "The import javax.servlet can't be resolved", it means that the javax.servlet package is not available on the classpath.

To fix this error, you need to include the servlet-api.jar file in your classpath. This file is usually provided by the Java EE web container (e.g. Tomcat) that you are using.

If you are using an Integrated Development Environment (IDE) such as Eclipse or IntelliJ IDEA, you can add the servlet-api.jar file to your project's classpath as follows:

  1. Download the servlet-api.jar file and save it to a local directory.
  2. In your IDE, right-click on your project and select "Properties" (Eclipse) or "Project Structure" (IntelliJ IDEA).
  3. In the "Java Build Path" section, click on the "Libraries" tab.
  4. Click on the "Add External JARs" button and select the servlet-api.jar file that you downloaded.
  5. Click on the "OK" button to apply the changes.

Alternatively, if you are using Maven as your build tool, you can include the javax.servlet dependency in your pom.xml file:

<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>javax.servlet-api</artifactId>
  <version>4.0.1</version>
  <scope>provided</scope>
</dependency>

I hope this helps. Let me know if you have any questions.