将JSON文件转为Java对象

1. 引入gradle依赖：

 // https://mvnrepository.com/artifact/cn.hutool/hutool-all
 implementation group: 'cn.hutool', name: 'hutool-all', version: '5.7.18'

2.进行解析转为对象

    public static void main(String[] args) throws Exception {
        //文件路径
        String url = "C:\\Users\\Focusmedia\\Downloads\\newjson.json";
        //判断文件是否存在
       if (!FileUtil.isFile(url)) {
            System.out.println("文件路径不存在");
            return;
        }
        //解析读到json文件字符串
        String s = FileUtil.readString(url, Charset.forName("UTF-8"));
        //转为对象
        GalaxyMultiQueryResponse response = JSONUtil.toBean(s, GalaxyMultiQueryResponse.class);
        //数据处理
        for (GalaxyMultiQueryResponseDetail datum : response.getData()) {
            System.out.println("\"" + datum.getBuildingId() + "\"");
        }
    }