java - 在Java中，如何在不删除字符串中任何字符的情况下分割字符串？

Question

我有一个像这样的字符串:

String str = "How {$can} {$we} split this {$string}?";

我必须把它分成几个 block :

["How ","{$can}"," ","{$we}"," split this ","{$string}","?"]

Answer 1

您可以使用此拆分:

String str = "How {$can} {$we} split this {$string}?";

String[] arr = str.split("(?=\\{)|(?<=\\})");

RegEx Demo

正则表达式分解:

(?=\\{)   # if next char is {
|         # regex alternation
(?<=\\})  # if previous char is }

Read about look arounds in regex