与Jackson中的GSON类似

Question

I am trying to convert an array or List (java) to JSON format. I have seen that in GSON we can do a the following:

data.add("hello");
data.add(someobject);
String gson = new Gson().toJson(data); 

Is there any similar way in Jackson?

Answer 1

There is an equivalent in Jackson: ObjectMapper.writeValueAsString .

List data = new ArrayList();
ObjectMapper mapper = new ObjectMapper();

data.add("hello");
data.add(someobject);

String json = mapper.writeValueAsString(data);