通过反射获取字段的通用类型
import java.lang.reflect.Field; import java.util.List; public class FieldSpy<T> { /**来自 N o w J a v a . c o m**/ public boolean[][] b = { { false, false }, { true, true } }; public String name = "Alice"; public List<Integer> list; public T val; public static void main(String... args) { try { Class<?> c = Class.forName(args[0]); Field f = c.getField(args[1]);/** nowjava.com - 时 代 Java 提 供 **/ System.out.format("Type: %s%n", f.getType()); System.out.format("GenericType: %s%n", f.getGenericType()); // production code should handle these exceptions more gracefully } catch (ClassNotFoundException x) { x.printStackTrace(); } catch (NoSuchFieldException x) { x.printStackTrace(); } } }