java - 什么是 Map 类

Question

我必须将 Map<ClassType1,Object> 的类传递给构造函数.如果我通过 Map.class只是，我有一个错误。所以我想知道 Map<MyClassType1,Object> 的类别是什么？

public class GetSessionRequest extends SpiceRequest<Map<ClassType1, Object>> {

    private Client mClient;
    public GetSessionRequest(Class<Map<ClassType1, Object>> clazz) {
        super(clazz);
    }

    public GetSessionRequest(Client client) {
        super(/*What should I pass here. I can't pass Map.class*/); 
        mClient = client;
    }


    @Override
    public Map<ClassType1, Object> loadDataFromNetwork() throws Exception {
        Map<ClassType1, Object> map = mClient.getSession();
        return map;
    }

}

Answer 1

我想你的意思是这样的:

public class T {
    public T(Class<Map<MyClassType1, Object>> cls) {
    }
}

但是你需要这个:

public class T {
    public T(Class<? extends Map<MyClassType1, Object>> cls) {
    }

    public static void main(String[] args) {
        Map<MyClassType1, Object> m = new HashMap<MyClassType1, Object>();
        T t = new T(m.getClass());
    }
}