Java开发中判断集合类为空的方法-转载

避免写两个判断

org.springframework.util.CollectionUtils

方法：

public static boolean isEmpty(Collection collection)
{
return collection == null || collection.isEmpty();
}

public static boolean isEmpty(Map map)
{
return map == null || map.isEmpty();
}
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原文：https://blog.csdn.net/sinosoft12345/article/details/54614005