大佬们,为什么我重写了hashCode和equals方法,判断两个类相等为什么还是false
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + id.hashCode();
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Product other = (Product) obj;
if (id != other.id)
return false;
return true;
}