Question

我想提取所有网址和＆＃34; rel＆＃34;此字符串中的相关信息：

<https://api-staging.xxx.com/v1/users>; rel="self", <https://api-staging.xxx.com/v1/users?page=1,0>; rel="next"

所以我开始：

Pattern mentionPattern = Pattern.compile("<(.+?)>");
Matcher mentionMatcher = mentionPattern.matcher(url);

它适用于网址，但我不知道如何提取＆＃34; rel＆＃34;信息。在这个例子中，我想提取＆＃34; self＆＃34;和＆＃34;下一个＆＃34;。

非常感谢你们

Answer 1

你可以这样做：

String test = "<https://api-staging.xxx.com/v1/users>; rel=\"self\", <https://api-staging.xxx.com/v1/users?page=1,0>; rel=\"next\"";
Pattern mentionPattern = Pattern.compile("[<\"](?<content>.+?)[>\"]");
Matcher m = mentionPattern.matcher(test);
while(m.find()) {
    System.out.println(m.group("content")); // using named groups
}

打印：

https://api-staging.xxx.com/v1/users
self
https://api-staging.xxx.com/v1/users?page=1,0
next

Java：如何提取信息＆＃34; rel =＆＃34; self＆＃34;＆＃34;与正则表达式

1 个答案: