读写json文件

写
//生成json文件
        Person person=new Person("张三",18);
        Writer writer= null;
        try {
            writer = new OutputStreamWriter(new FileOutputStream("E:\\a.json"),"utf-8");
            JSONWriter jsonWriter = new JSONWriter(writer);
            jsonWriter.writeObject(person);
            jsonWriter.close();
            writer.close();
        } catch (Exception e) {
          e.printStackTrace();
        }

读
//读取json文件
        Reader reader=null;
        try {
            reader=new InputStreamReader(new FileInputStream("E:\\a.json"),"utf-8");
            JSONReader jsonReader=new JSONReader(reader);
            //1、
            //Person person1=new Person();
            //jsonReader.readObject(person1);
            //System.out.println("person1："+person1);
            //2、
            Person person2 = jsonReader.readObject(Person.class);
            System.out.println("person2："+person2);
            jsonReader.close();
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }