Using Eclipse to create and run Java servlets is a popular choice among Java developers. Here are the steps to create and run a servlet using Eclipse:

1. Create a new Dynamic Web Project in Eclipse by going to File > New > Dynamic Web Project. Give the project a name and click Finish.

2. Right-click on the project in the Package Explorer and select New > Servlet. Give the servlet a name and specify a package. Click Finish.

3. Eclipse will generate a Java file for the servlet. You can add your own code to the file to implement the servlet's functionality.

4. To test the servlet, you need to deploy the web application to a server. In Eclipse, you can configure a server to use for testing by going to Window > Preferences > Server > Runtime Environments. Click Add to add a new server runtime environment.

5. Once you have a server configured, right-click on the project in the Package Explorer and select Run As > Run on Server. Choose the server you want to use and click Finish.

6. Eclipse will launch the server and deploy the web application to it. You should be able to access the servlet in a web browser by navigating to the appropriate URL, which will depend on the server and context path you specified.

That's the basic process for creating and running a servlet using Eclipse. Of course, there are many variations on this process depending on the specific requirements of your application, but this should give you a good starting point.