Scala 用键/值列表替换字符串 [英] Scala replace an String with a List of Key/Values

问题描述

我有这样的不同字符串

" Hello *|USERNAME|*,

  to activate your account please click here *|ACTIVATION_LINK|*
"

另一个例子

" Hello,

  to reset your password please click here *|RESET_URL|*
"

对于第一个字符串，我会有一个像这样的键值列表

for the first String I would have a List of key values like this

((USERNAME, Nick),(ACTIVATION_URL, http://whateverhost/activation_url))

第二个

((RESET_URL, http://whateverhost/reset_url))

我想用键/值列表替换字符串，列表可以有一个可变长度，并且字符串中键的出现可能是多个

I want to replace the strings with the List of Key/Values, the List can have a variable length and the occurrences of the keys in the String may be multiple

我试过这样的事情

mapKeyValues.map { x => bodyString.replaceAll(x._1, x._2) }

但问题是我得到了一个新列表，其中每一行都替换了一行键/值

But the problem is I get a new List where each row has the replacement of one row of the Key/Values

有没有办法做到这一点?

Is there a way to do this?

推荐答案

你可以使用 foldLeft:

You can do it using foldLeft:

mapKeyValues
  .foldLeft (bodyString) {case (acc,(key,value))=>acc.replaceAll(key, value)}

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