在运行时获取泛型属性的值

import java.lang.reflect.Field;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;

public class GenericExample<T> {
    private T genericField;

    public static void main(String[] args) throws NoSuchFieldException, IllegalAccessException {
        GenericExample<String> example = new GenericExample<>();
        example.genericField = "Hello, World!";

        Class<?> clazz = example.getClass();
        Field field = clazz.getDeclaredField("genericField");

        Type genericType = field.getGenericType();
        if (genericType instanceof ParameterizedType) {
            ParameterizedType parameterizedType = (ParameterizedType) genericType;
            Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
            if (actualTypeArguments.length > 0) {
                Class<?> fieldType = (Class<?>) actualTypeArguments[0];
                Object value = field.get(example);
                System.out.println("Field Type: " + fieldType);
                System.out.println("Field Value: " + value);
            }
        }
    }
}