Java奇怪分裂行为与|字符 [英] Java Strange split behavior with | character

问题描述

我有一个小文件，其中包含一些内容，我想用|字符。

当我尝试使用任何其他字符（例如>）时，它工作正常，但是|

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行本身（这里用>字符）

addere>添加>（1）

拆分>结果

[addere，to add，（1）]

拆分|结果

[，a，d，d，e，r，e，|，t，o，a，d，d，|，（，1， >

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为什么要拆分所有内容，甚至忽略|字符本身中的字符？

提前感谢。

解决方案

反斜杠，因为它的含义在正则表达式中是特殊的。然后你必须为Java本身转义反斜杠。尝试：

  text.split（\\ |）
  

I have a little file that contains some content that I want to split with the "|" character.

When I tried it with any other character (eg. ">"), it worked perfectally fine, but with the "|" character, there were some unexpected outcomes.

---

The line itself (here with the > character)
addere>to add>(1)

Split ">" outcome
[addere, to add, (1)]

Split "|" outcome
[, a, d, d, e, r, e, |, t, o, , a, d, d, |, (, 1, )]

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Why is it splitting everything and even ignoring the "|" character in the string itself?
Thanks in advance.

解决方案

You must escape the pipe character with a backslash, because its meaning is special in a regex. Then you must escape the backslash for Java itself. Try:

text.split("\\|")

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