You need to add the Servlet API to your classpath. In Tomcat 6.0, this is in a JAR called servlet-api.jar in Tomcat's lib folder. You can either add a reference to that JAR to the project's classpath, or put a copy of the JAR in your Eclipse project and add it to the classpath from there.
If you want to leave the JAR in Tomcat's lib folder:
- Right-click the project, click Properties.
- Choose Java Build Path.
- Click the Libraries tab
- Click Add External JARs...
- Browse to find
servlet-api.jar and select it.
- Click OK to update the build path.
Or, if you copy the JAR into your project:
- Right-click the project, click Properties.
- Choose Java Build Path.
- Click Add JARs...
- Find
servlet-api.jar in your project and select it.
- Click OK to update the build path.
