Regex 从响应头中提取会话ID

如何从这个ResponseHeader中提取JSESSIONID（在“=”之后和“；”之前的所有内容）

Set-Cookie:Apache=40.76.87.14.1462996905538733; path=/; domain=.cra-arc.gc.ca,JSESSIONID=KjahaS5VdMBttn9bAYuS_iHFXOgmqQyMxHcht1kBS7p1YOpdV2V_!1094217526; path=/; HttpOnly

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您可以使用以下模式：

/JSESSIONID=([^;]*)/

解释上述正则表达式：

JSESSIONID=           # match the text literally
(                     # asserts that all content inside it will be in group $1
    [^;]                  # means any character not ';'
    *                     # as many as possible
)                     # end of the group $1

您所需的值将位于组1内

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您可以在中看到它。

您可以使用以下模式：

/JSESSIONID=([^;]*)/

解释上述正则表达式：

JSESSIONID=           # match the text literally
(                     # asserts that all content inside it will be in group $1
    [^;]                  # means any character not ';'
    *                     # as many as possible
)                     # end of the group $1

您所需的值将位于组1内

您可以在中看到它。

您可以使用：

/JSESSIONID=(.*?);/

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Regex101演示版：

JSESSIONID=(.*?);

Match the character string “JSESSIONID=” literally (case sensitive) «JSESSIONID=»
Match the regex below and capture its match into backreference number 1 «(.*?)»
   Match any single character that is NOT a line break character (line feed, carriage return, line separator, paragraph separator) «.*?»
      Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the character “;” literally «;»

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正则表达式解释：

JSESSIONID=(.*?);

Match the character string “JSESSIONID=” literally (case sensitive) «JSESSIONID=»
Match the regex below and capture its match into backreference number 1 «(.*?)»
   Match any single character that is NOT a line break character (line feed, carriage return, line separator, paragraph separator) «.*?»
      Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the character “;” literally «;»

您可以使用：

/JSESSIONID=(.*?);/

---

Regex101演示版：

JSESSIONID=(.*?);

Match the character string “JSESSIONID=” literally (case sensitive) «JSESSIONID=»
Match the regex below and capture its match into backreference number 1 «(.*?)»
   Match any single character that is NOT a line break character (line feed, carriage return, line separator, paragraph separator) «.*?»
      Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the character “;” literally «;»

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正则表达式解释：

JSESSIONID=(.*?);

Match the character string “JSESSIONID=” literally (case sensitive) «JSESSIONID=»
Match the regex below and capture its match into backreference number 1 «(.*?)»
   Match any single character that is NOT a line break character (line feed, carriage return, line separator, paragraph separator) «.*?»
      Between zero and unlimited times, as few times as possible, expanding as needed (lazy) «*?»
Match the character “;” literally «;»

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谢谢！我想我可以用JS在“=”处拆分字符串，因为它仍然可以捕获整个组，从JSSessionID一直到分号之前的字符串。是的，您可以；）。。。正如您现在所说的是JS，我的答案是：

var result=string.match（/JSESSIONID=（[^；]*）/）[1]谢谢！我想我可以用JS在“=”处拆分字符串，因为它仍然捕获整个组，从JSSessionID一直到分号之前的字符串。是的，您可以；）。。。正如您现在所说的是JS，我的答案是：
var result=string.match（/JSESSIONID=（[^；]*）/）[1]哦，这也很整洁！非常感谢。哦，这也很整洁！非常感谢。