如何在Pattern类中使用变量而不是字符串？

I am attempting to search for a word in between two words and am using the Pattern class in Java. So far my code is:

我试图在两个单词之间搜索一个单词，并在Java中使用Pattern类。到目前为止我的代码是：

Pattern pattern = Pattern.compile("(?<=PlaintiffAtty_0).*?(?=</span>)");
Matcher matcher = pattern.matcher(sourcecode.toString());

        while (matcher.find()) {
            System.out.println(matcher.group().toString());

The first pattern word "PlaintiffAtty_0" will be changing as the number will increase, so I would like to use it as a variable. How would insert a variable there instead of having to change the string every time?

第一个模式词“PlaintiffAtty_0”将随着数字的增加而改变，所以我想将它用作变量。如何在那里插入变量而不必每次都更改字符串？

1 个解决方案

#1

Use string concatenation and Pattern.quote to ensure that any special characters inside the string are treated literally:

使用字符串连接和Pattern.quote确保字符串中的任何特殊字符都按字面处理：

Pattern.compile("(?<="+Pattern.quote(myString)+").*?(?=</span>)");

where myString is a variable, a method call, an access to an array, etc.

其中myString是变量，方法调用，对数组的访问等。

#1