Java: Printing out an object for debugging

Question

I would like an easy way to print out a java object, or to say it another way, serialize an object as a string. I would like to see the values of all variables contained within the object, and if there are more objects (like a list or whatever) it should print out the stuff in that object as well. Basically, it would be something like JSON encoding, but JSON doesn't support infinity, and I need to see if there is infinity or NaN in one of the double or float values.

How can I do this?

Answer 1

您可以使用Gson序列化为JSON，因为它现在支持NaN和+/-无限

Answer 2

More often than not ToStringBuilder.reflectionToString(Object) works great. It wont work when doing Maps though.