第 9 章 Miscellaneous

		
ObjectMapper mapper = new ObjectMapper();
User user = new User();

//Object to JSON in file
mapper.writeValue(new File("c:\\user.json"), user);

//Object to JSON in String
String jsonInString = mapper.writeValueAsString(user);

//Convert object to JSON string and pretty print
String jsonInString = mapper.writerWithDefaultPrettyPrinter().writeValueAsString(user);