Java string.split - 由多个字符分隔符组成 [英] Java string.split - by multiple character delimiter

问题描述

我想基于所有可能的分隔符解析整个文件，如逗号，冒号，冒号，句号，空格，hipns等。

I would like to parse entire file based on all the possible delimiters like commas, colon, semi colons, periods, spaces, hiphens etcs.

假设我有一个假设的字符串行你好，X怎么样：你呢？我应该得到带有项目Hi，X，How，how，are，any和you的输出数组。

Suppose I have a hypothetical string line "Hi,X How-how are:any you?" I should get output array with items Hi,X,How,how,are,any and you.

如何在String.split方法中指定所有这些分隔符？

How do I specify all these delimiter in String.split method?

提前致谢。

推荐答案

String.split 采用正则表达式，在这种情况下，您需要非单词字符（正则表达式 \W ）作为拆分，所以它只是：

String.split takes a regular expression, in this case, you want non-word characters (regex \W) to be the split, so it's simply:

String input = "Hi,X How-how are:any you?";
String[] parts = input.split("[\\W]");

如果你想更明确，你可以使用表达式中的确切字符：

If you wanted to be more explicit, you could use the exact characters in the expression:

String[] parts = input.split("[,\\s\\-:\\?]");

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