Java實用類庫之StringUtils
阿新 • • 發佈:2018-08-26
檢查 commons org extract repeat emp rac href string
org.apache.commons.lang.StringUtils
作為jdk中lang包的補充
檢查CharSequence是否為空,null或者空格
CharSequence (CharBuffer, Segment, String, StringBuffer, StringBuilder)
- isBlank(CharSequence) 可以檢查空,null和空格
- isEmpty(CharSequence) 只能檢查空和null
- 還有isNotBlank(cs)和isNotEmpt(cs)
字符串截取
Substring/Left/Right/Mid - null-safe substring extractions
字符串補全
LeftPad/RightPad/Center/Repeat - pads a String
參考
- doc:https://commons.apache.org/proper/commons-lang/apidocs/index.html?org/apache/commons/lang3/StringUtils.html
- apache下載:https://commons.apache.org/proper/commons-lang/
Java實用類庫之StringUtils