I have the following method in my project
public void execute(final int apiId, final ResponseHandler handler, final Type type)
and the type is determined using TypeToken as follows
final Type serviceErrorType = new TypeToken<>() {
}.getType();
我在这里看过这个link，但对Type和TypeToken不能完全理解
任何人都可以分享一个链接或帮助理解这两个概念吗？
从您提供的link个选项中:
强制客户端创建此类的子类，这样即使在运行时也可以检索类型信息.
让我们举个例子.
Assume you want to parse a JSON to Java class with Gson library. Now, you have to specifically tell Gson, that:
I want this JSON to be translated to a List of User objects
How would you tell that to Gson? If it was only User, you could tell User.class. But it isn't possible to say List<User>.class
new Gson().fromJson(json, new TypeToken<List<User>>(){}.getType())
但现在您可以精确地指定Gson应该将其转换为List of Users.
应该引用文档中的解释:
表示泛型类型
T.Java还没有提供表示泛型类型的方法，所以这个类提供了.
Have a look at this blog post for more details on the topic.