Consider defining a bean named captchaProducer in your configuration.

Sure, to define a bean named `captchaProducer` in your configuration, you can use the `@Bean` annotation in a configuration class. Here's an example:

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class Config {

    @Bean
    public CaptchaProducer captchaProducer() {
        // Define your implementation for captchaProducer bean here
        return new CaptchaProducerImpl();
    }
}

In this example, `CaptchaProducer` is the interface for generating captchas, and `CaptchaProducerImpl` is an implementation class. You can replace `CaptchaProducerImpl` with your own implementation class.

Make sure to include this configuration class in your application's main configuration or scan it using component scanning. Once defined, you can autowire `captchaProducer` bean in other classes where you need to generate captchas.