如何用List获取方法 <SomeObject> 作为参数使用Reflection

Question

I have

public void setContacts(List<PersonContact> contacts) {
    this.contacts = contacts;
}

A need get this method using Reflection, I have tried

  clazz.getMethod("setContacts", ArrayList.class);

show the erro :

java.lang.NoSuchMethodException: model.person.Person.setContacts(java.util.ArrayList)

That's correct, the method signature is

    setContacts(List<PersonContact> contacts)

So, how can I pass correct signature in getMethod?

Answer 1

the parameter type is java.util.List and not java.util.ArrayList

clazz.getMethod("setContacts", List.class);

It is important that you uses the actual class because you could also have the method overloaded with an ArrayList parameter