如何替换两个字符串，以使一个字符串最终不会替换另一个字符串？

Question

假设我有以下代码：

String word1 = "bar";
String word2 = "foo";
String story = "Once upon a time, there was a foo and a bar."
story = story.replace("foo", word1);
story = story.replace("bar", word2);

这段代码运行后，价值story会"Once upon a time, there was a foo and a foo."

如果我以相反的顺序替换它们，则会发生类似的问题：

String word1 = "bar";
String word2 = "foo";
String story = "Once upon a time, there was a foo and a bar."
story = story.replace("bar", word2);
story = story.replace("foo", word1);

的值story将是"Once upon a time, there was a bar and a bar."

我的目标是把story成"Once upon a time, there was a bar and a foo."我怎么能做到呢？

Answer 1

使用Apache Commons StringUtils中的replaceEach()方法：

StringUtils.replaceEach(story, new String[]{"foo", "bar"}, new String[]{"bar", "foo"})