如何在不从Java中的字符串中删除任何字符的情况下拆分字符串？

Question

我有一个这样的字符串：

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

我必须把它分成几个块：

["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

RegEx分手：

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

Read about look arounds in regex