重点:
Type type =new TypeToken<List<Student>>(){ }.getType();
把type对象直接传入到fromJson中
List<Student> list = new ArrayList<>(); list.add(new Student("小张","男",20,"读书")); list.add(new Student("小明","男",20,"跑步")); list.add(new Student("小红","女",20,"旅游")); list.add(new Student("小白","男",20,"唱歌")); //将list集合序列化 String s = new Gson().toJson(list); System.out.println("序列化为:"+s); //将list集合反序列化 Type type =new TypeToken<List<Student>>(){ }.getType(); List<Student> list1 = new Gson().fromJson(s,type); System.out.println(list1.get(1).getName());