在java中的两个字符串之间提取字符串 [英] Extract string between two strings in java

问题描述

我尝试在<％=和％>之间获取字符串，这是我的实现：

I try to get string between <%= and %>, here is my implementation:

String str = "ZZZZL <%= dsn %> AFFF <%= AFG %>";
Pattern pattern = Pattern.compile("<%=(.*?)%>");
String[] result = pattern.split(str);
System.out.println(Arrays.toString(result));

它返回

[ZZZZL ,  AFFF ]

但我的期望是：

[ dsn , AFG ]

我错在哪里以及如何纠正它？

Where am i wrong and how to correct it ?

推荐答案

你的模式很好。但是你不应该 split（）把它扔掉，你应该 find（）它。以下代码给出了您要查找的输出：

Your pattern is fine. But you shouldn't be split()ting it away, you should find() it. Following code gives the output you are looking for:

String str = "ZZZZL <%= dsn %> AFFF <%= AFG %>";
Pattern pattern = Pattern.compile("<%=(.*?)%>");
Matcher matcher = pattern.matcher(str);
while (matcher.find()) {
    System.out.println(matcher.group(1));
}

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