Java使用Gson对字符串进行手动反序列化的方法分享

实现思路:
    使用stream包下 JsonReader类对字符串进行手动序列化

String json = "{\"name\":\"Java265.com\",\"age\":\"989\"}";
User user = new User();
JsonReader reader = new JsonReader(new StringReader(json));
reader.beginObject(); // throws IOException
while (reader.hasNext()) {
    String s = reader.nextName();
    switch (s) {
        case "name":
            user.name = reader.nextString();
            break;
        case "age":
            user.age = reader.nextInt(); //自动转换
            break;
        case "email":
            user.email = reader.nextString();
            break;
    }
}
reader.endObject(); // throws IOException
System.out.println(user.name);     
System.out.println(user.age);    
System.out.println(user.email);