import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.ArrayList;
import java.util.List;

public class Main {
    public static void main(String[] args) throws Exception {
        // 创建一个包含字符串的List
        List<String> list = new ArrayList<>();
        list.add("item1");
        list.add("item2");
        list.add("item3");

        // 将List转换成JSON字符串
        ObjectMapper objectMapper = new ObjectMapper();
        String json = objectMapper.writeValueAsString(list);

        System.out.println(json);
    }
}