How can I return JSON responses with Dropwizard healthcheck?

问题

I've been working on adding healthchecks to my dropwizard service. The problem is dropwizard returns plain text responses when I run my healthchecks. And I can only add an optional string messages to this output.

For example: * Available Disk Space: OK Disk usage is not critically high (my message string) * Available Memory: OK * CPU Usage: OK * deadlocks: OK

Is there a way to return these messages in JSON format so that I can parse the output easily?

Thanks a million!

回答1:

You can pass ObjectMapper to your healthcheck. Then you can use appropriate methods such as com.fasterxml.jackson.databind.ObjectMapper#writeValueAsString of ObjectMapper and pass String argument to create a healthcheck instance.

回答2:

If possible, upgrade to Dropwizard v0.7.1. The default health check format will be JSON.

来源：https://stackoverflow.com/questions/18981107/how-can-i-return-json-responses-with-dropwizard-healthcheck