private void test1() {
Method[] methods = TestObj.class.getMethods();
Method listMethod = null;
Method arrayMethod = null;
for (Method m : methods) {
if (m.getName().equals("ListPara")) {
listMethod = m;
} else if (m.getName().equals("ArrayPara")) {
arrayMethod = m;
}
}
Class arrayParaType = arrayMethod.getParameterTypes()[0];
boolean isArray = arrayParaType.isArray(); //是 Array
/**
* 获取 Array 的元素类型
* */
Class arrayEleType = arrayParaType.getComponentType();
if (MenuInfo.class == arrayEleType) {
System.out.println(arrayEleType.toString());
}
Class listParaType = listMethod.getParameterTypes()[0];
boolean isList = List.class.isAssignableFrom(listParaType); //是 List
/**
* 获取 List 的元素类型
* */
Type listType = listMethod.getGenericParameterTypes()[0];
ParameterizedType parameterizedType = (ParameterizedType) listType;
Type[] actualTypeArguments = parameterizedType.getActualTypeArguments();
Class listEleType = (Class) actualTypeArguments[0];
if (MenuInfo.class == listEleType) {
System.out.println(listEleType.toString());
}
}
class TestObj {
public void ListPara(List menuInfos) {
//
}
public void ArrayPara(MenuInfo[] menuInfos) {
//
}
}