package com.gezi;

import com.alibaba.fastjson.JSON;

import java.io.*;
import java.util.ArrayList;
import java.util.List;
/**
 * 作者：是一个鸽子啊
 * 时间：2020/06/07
 */
public class BoxJsonUtils {
    //读取json文件
    public static String readJsonFile(String fileName) {
        String jsonStr = "";
        try {
            File jsonFile = new File(fileName);
            FileReader fileReader = new FileReader(jsonFile);
            Reader reader = new InputStreamReader(new FileInputStream(jsonFile),"utf-8");
            int ch = 0;
            StringBuffer sb = new StringBuffer();
            while ((ch = reader.read()) != -1) {
                sb.append((char) ch);
            }
            fileReader.close();
            reader.close();
            jsonStr = sb.toString();
            return jsonStr;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
    //json转List
    public static List<Box> jsonBoxList(String jsonStr) {
        List<Box> boxList=new ArrayList<>();
        boxList = JSON.parseArray(jsonStr, Box.class);
        return boxList;
    }
    public static List<Fly> jsonFlyList(String jsonStr) {
        List<Fly> flyList=new ArrayList<>();
        flyList = JSON.parseArray(jsonStr, Fly.class);
        return flyList;
    }

}