Java中JSON和对象的相互转换

Jackson

jar包下载地址：https://repo1.maven.org/maven2/com/fasterxml/jackson/core/

Person p = new Person("aaa", 18);// 创建ObjectMapper对象om
ObjectMapper om = new ObjectMapper();// 将对象转为JSON
String s = om.writeValueAsString(p);
System.out.println(s);// 将JSON转为对象
Person newP = om.readValue(s, Person.class);
System.out.println(newP);