如何在Java中使用sendgrid API获取处理、传递、退回、丢弃等事件？

<dependency>
    <groupId>com.sendgrid</groupId>
    <artifactId>sendgrid-java</artifactId>
    <version>4.7.0</version>
</dependency>

import com.sendgrid.*;

public class SendGridExample {
    public static void main(String[] args) {
        String apiKey = "YOUR_SENDGRID_API_KEY";
        SendGrid sg = new SendGrid(apiKey);
    }
}

import com.sendgrid.*;
import java.io.IOException;

public class SendGridExample {
    public static void main(String[] args) {
        String apiKey = "YOUR_SENDGRID_API_KEY";
        SendGrid sg = new SendGrid(apiKey);

        try {
            Request request = new Request();
            request.setMethod(Method.GET);
            request.setEndpoint("user/webhooks/event/settings/parse");
            Response response = sg.api(request);
            System.out.println(response.getStatusCode());
            System.out.println(response.getBody());
            System.out.println(response.getHeaders());
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}