将自定义对象的ArrayList转换为JSON

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.12.4</version>
</dependency>

public class Person {
    private String name;
    private int age;

    // 省略构造函数和getter/setter方法
}

List<Person> personList = new ArrayList<>();
personList.add(new Person("Alice", 25));
personList.add(new Person("Bob", 30));

ObjectMapper objectMapper = new ObjectMapper();
String json = objectMapper.writeValueAsString(personList);