stringutils isblank - StringUtils isNotBlank - StringUtils isBlank isEmpty

org.apache.commons.lang3.StringUtils.isBlank

For tabs, newlines, the form feed character and StringUtils.isBlank (carriage return) all knowledge is blank.

StringUtils.isBlank

StringUtils.isBlank(str) ? defaultStr : str; 5730 } 5731 5732 /** 5733 *

Returns either the passed in String, or if the String is 5734 * empty or  

StringUtils类中isEmpty与isBlank的区别- 苏二

org.apache.commons.lang.StringUtils类提供了String的常用操作,最为常用的判空有如下两种isEmpty(String str)和isBlank(String str)。 StringUtils.

What is StringUtils.isBlank in Java?

Overview. isBlank() is a static method of the StringUtils which is used to check if the given string is blank. When is a string considered blank?

StringUtils (Apache Commons Lang 3.17.0 API)

Operations on String that are null safe. IsEmpty/IsBlank - checks if a String contains text; Trim/Strip - removes leading and trailing whitespace 

StringUtils.isBlank()的使用原创

在校验一个String类型的变量是否为空时，可以使用StringUtils.isBlank方法，它可以校验三种情况：是否为null、是否为""、是否为空字符串(引号中间有