程序包 org.springframework.util.comparator
Useful generic
java.util.Comparator implementations, such as an invertible comparator and a compound comparator.类概要 类 说明 BooleanComparator ComparableComparator<T extends Comparable<T>> Comparator that adapts Comparables to the Comparator interface.Comparators Convenient entry point with generically typed factory methods for common SpringComparatorvariants.CompoundComparator<T> 已过时。 as of Spring Framework 5.0, in favor of the standard JDK 8Comparator.thenComparing(Comparator)InstanceComparator<T> Compares objects based on an arbitrary class order.InvertibleComparator<T> 已过时。 as of Spring Framework 5.0, in favor of the standard JDK 8Comparator.reversed()NullSafeComparator<T> A Comparator that will safely compare nulls to be lower or higher than other objects.