从Jackson 2.2的ObjectMapper中打印JSON(Pretty printing JSON from Jackson 2.2's ObjectMapper)

 现在我有一个org.fasterxml.jackson.databind.ObjectMapper的实例，并希望得到一个具有漂亮JSON的String 。 我的Google搜索的所有结果都提出了Jackson 1.x的这种做法，我似乎找不到适当的，不被弃用的方法，使用2.2。 即使我不认为代码对于这个问题是绝对必要的，这里是我现在所说的： 
 
ObjectMapper mapper = new ObjectMapper();
mapper.setSerializationInclusion(Include.NON_NULL);
System.out.println("\n\n----------REQUEST-----------");
StringWriter sw = new StringWriter();
mapper.writeValue(sw, jsonObject);
// Want pretty version of sw.toString() here

Right now I have an instance of org.fasterxml.jackson.databind.ObjectMapper and would like to get a String with pretty JSON. All of the results of my Google searches have come up with Jackson 1.x ways of doing this and I can't seem to find the proper, non-deprecated way of doing this with 2.2. Even though I don't believe that code is absolutely necessary for this question, here's what I have right now:
 
ObjectMapper mapper = new ObjectMapper();
mapper.setSerializationInclusion(Include.NON_NULL);
System.out.println("\n\n----------REQUEST-----------");
StringWriter sw = new StringWriter();
mapper.writeValue(sw, jsonObject);
// Want pretty version of sw.toString() here

原文：https://stackoverflow.com/questions/17617370