将JSON文件转换为Excel

package com.duan;
import cn.afterturn.easypoi.excel.ExcelExportUtil;
import cn.afterturn.easypoi.excel.entity.TemplateExportParams;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.apache.poi.ss.usermodel.Workbook;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
import java.io.*;
import java.util.*;

public class JsonRead {
    private static List<JSONArray> jsonList = new ArrayList<>();
    private static void process(String txtStr)  {
        JSONObject json = JSONObject.fromObject(txtStr);
        JSONArray datas = json.getJSONArray("data");
        jsonList.add(datas);
    }

    public static void saveFile(List<JSONArray> l) throws IOException{
        List<Proj> list = new ArrayList<>();
        for (JSONArray datas:l) {
            for (int i = 0; i < datas.size(); i++) {
                Map<String, Object> map = new HashMap<>();
                JSONObject obj = datas.getJSONObject(i);
                String propertyTypes = obj.getString("propertyTypes")；
                String pid = obj.getString("pid");
                String projName = obj.getString("projName");
                String saleStatus = obj.getString("saleStatus");
                String status = obj.getString("status");

                Proj proj = new Proj(propertyTypes, pid, projName, saleStatus, status);
                list.add(proj);
            }
        }
        Map<String, Object> map = new HashMap<>();
        map.put("list", list);
        String excelName = "/Users/root/Desktop/export/test1.xlsx";　　　　//所需保存的模板文件
        TemplateExportParams params = new TemplateExportParams(excelName);
        Workbook work = ExcelExportUtil.exportExcel(params, map);
        FileOutputStream fos = new FileOutputStream("/Users/root/Desktop/export/test1_map.xlsx");　//所需生成的Excel文件　
        work.write(fos);
        fos.close();
    }

    public static void main(String[] args) throws IOException {
        String fileName = "/Users/root/Desktop/未命名文件夹";　　//Json文件所在的文件夹路径～
        File file = new File(fileName);		　　　　　　　　//获取其file对象
        File[] fs = file.listFiles();
        for (File f: fs
             ) {
            if(!f.getName().contains("json")){
                continue;
            }
            BufferedReader bufferedReader = new BufferedReader(new FileReader(f));
            String context = null;
            StringBuilder json = new StringBuilder();

            //json内容转化为Map集合通过遍历集合来进行封装
            while ((context = bufferedReader.readLine()) != null) {
                //Context就是读到的json数据
                json.append(context);
            }
            String txtStr = json.toString();
            if (txtStr != null) {
                JSONObject json1 = JSONObject.fromObject(txtStr);
                JSONArray datas = json1.getJSONArray("data");
                jsonList.add(datas);
            } else {
                System.out.println("Read the content is empty!");
            }
        }
        saveFile(jsonList);
    }
}
@Data
@NoArgsConstructor
@AllArgsConstructor
class Proj{
    String propertyTypes;
    String pid;
    String projName;
    String saleStatus;  //销售状态
    String status;      //是否隐藏状态
}