工具类：Gson——获取你想要的Type

/**
 * Gson获取Type工具类
 * <p>
 * https://www.jianshu.com/p/9ddd2d5b2d37
 */

public class TypeFactory {

    public static Type $List(Type type) {
        return $Gson$Types.newParameterizedTypeWithOwner(null, List.class, type);
    }

    public static Type $Set(Type type) {
        return $Gson$Types.newParameterizedTypeWithOwner(null, Set.class, type);
    }

    public static Type $HashMap(Type type, Type type2) {
        return $Gson$Types.newParameterizedTypeWithOwner(null, HashMap.class, type, type2);
    }

    public static Type $Map(Type type, Type type2) {
        return $Gson$Types.newParameterizedTypeWithOwner(null, Map.class, type, type2);
    }

    public static Type $Parameterized(Type ownerType, Type rawType, Type... typeArguments) {
        return $Gson$Types.newParameterizedTypeWithOwner(ownerType, rawType, typeArguments);
    }

    public static Type $Array(Type type) {
        return $Gson$Types.arrayOf(type);
    }

    public static Type $SubtypeOf(Type type) {
        return $Gson$Types.subtypeOf(type);
    }

    public static Type $SupertypeOf(Type type) {
        return $Gson$Types.supertypeOf(type);
    }
}

示例

List<Dim> dims = gson.fromJson(json, TypeFactory.$List(Dim.class));