I don't use regex that much so I am having some troubles with this right now. I'm trying to replace ["item1", "item2"] with item1, item2 using string.replaceAll(). However, I don't know how do I match the [, and I don't know how to replace all special characters but the comma.
我没有使用正则表达式，所以我现在遇到了一些麻烦。我正在尝试使用string.replaceAll（）将item1，item2替换为[“item1”，“item2”]。但是，我不知道如何匹配[，而且我不知道如何替换所有特殊字符但逗号。
1 个解决方案
#1
2
You can use following regular expression to solve your problem.
您可以使用以下正则表达式来解决您的问题。
String s = "[\"item1\", \"item2\"]";
System.out.println(s.replaceAll("\\[\"([a-z0-9]*)\",\\s*\"([a-z0-9]+)\"\\]", "$1, $2"));
Note that I have use parenthesis to group what I wanted and use them in the replace string. Your groups will identify as $1, $2, $3... as it appears in your regular expression.
请注意，我使用括号来分组我想要的内容并在替换字符串中使用它们。您的群组将标识为正常表达式中显示的$ 1，$ 2，$ 3 ....
#1
2
You can use following regular expression to solve your problem.
您可以使用以下正则表达式来解决您的问题。
String s = "[\"item1\", \"item2\"]";
System.out.println(s.replaceAll("\\[\"([a-z0-9]*)\",\\s*\"([a-z0-9]+)\"\\]", "$1, $2"));
Note that I have use parenthesis to group what I wanted and use them in the replace string. Your groups will identify as $1, $2, $3... as it appears in your regular expression.
请注意，我使用括号来分组我想要的内容并在替换字符串中使用它们。您的群组将标识为正常表达式中显示的$ 1，$ 2，$ 3 ....