//从给定位置读取Json文件

    public static String readJson(String path){

        //从给定位置获取文件

        File file = new File(path);

        BufferedReader reader = null;

        //返回值,使用StringBuffer

        StringBuffer data = new StringBuffer();

        //

        try {

            reader = new BufferedReader(new FileReader(file));

            //每次读取文件的缓存

            String temp = null;

            while((temp = reader.readLine()) != null){

                data.append(temp);

            }

        } catch (FileNotFoundException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }finally {

            //关闭文件流

            if (reader != null){

                try {

                    reader.close();

                } catch (IOException e) {

                    e.printStackTrace();

                }

            }

        }

        return data.toString();

    }

    //给定路径与Json文件，存储到硬盘

    public static void writeJson(String path,Object json,String fileName){

        BufferedWriter writer = null;

        File file = new File(path + fileName + ".json");

        //如果文件不存在，则新建一个

        if(!file.exists()){

            try {

                file.createNewFile();

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

        //写入

        try {

            writer = new BufferedWriter(new FileWriter(file));

            writer.write(json.toString());

        } catch (IOException e) {

            e.printStackTrace();

        }finally {

            try {

                if(writer != null){

                    writer.close();

                }

            } catch (IOException e) {

                e.printStackTrace();

            }

        }

//        System.out.println("文件写入成功！");

    }

}