Detailed explanation of the usage method of fastjson in Java's JSON processor

fastjson is a JSON parser and generator implemented in Java language with good performance, developed by Alibaba engineers.

Main features:

• Fast FAST (faster than any other Java-based parsers and generators, including jackson)

• Powerful (supports normal JDK classes including any Java Bean Class, Collection, Map, Date or enum)

• Zero dependency (no dependency on any other class library except JDK)

Sample code:

 import com.alibaba.fastjson.JSON; Group group = new Group(); group.setId(0L); group.setName("admin"); User guestUser = new User(); guestUser.setId(2L); guestUser.setName("guest"); User rootUser = new User(); rootUser.setId(3L); rootUser.setName("root"); group.getUsers().add(guestUser); group.getUsers().add(rootUser); group.getUsers().add(rootUser); String jsonString = JSON.toJSONString(group); System.out.println(jsonString);

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