Reputation: 459
I have a Maven project running on Tomcat 8.0.50. I was trying to place a filter before a Servlet to validate some form data. I tried to extend the HttpFilter Abstract Class as per this.
But Eclipse keeps on throwing this error:
"The import javax.servlet.http.HttpFilter cannot be resolved."
I can, however, import other classes in javax.servlet.* and javax.servlet.http.*
Also, I can implement the Filter
interface.
Any help with this?
Upvotes: 1
Views: 1769
Reputation: 7948
HttpFilter class is available with java-ee 8 (with servlet 4.0). Tomcat version 8.xxx is implementing Servlet 3.1. With tomcat version 9, Servlet 4.0 is implemented.
You can add java-ee 8 dependency and use HttpFilter class. (or switch to tomcat 9 and add scope provided dependency)
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>8.0</version>
</dependency>
http://tomcat.apache.org/whichversion.html
Upvotes: 5