java - java通过正则表达式更改包含{n}的字符串

Question

我有一个字符串，其中包含像 {0}、{1} ... {n} 这样的表达式。我有长度为 n 的字符串列表。{0} 替换为 param[0]，{1} 替换为 param[1]，{n} 替换为 param[n]。我怎样才能做到这一点？

List<String> params = new ArrayList<String>;
param[0] = "dortmund";
param[1] = "5555";
String message = "customers address is  {0}, phone number is {1}, please check them.";

Answer 1

您可以使用MessageFormat：

MessageFormat messageFormat = new MessageFormat("customers address is  {0}, phone number is {1}, please check them.");
Object[] args = {"dortmund", "5555"};
String message = messageFormat.format(args);

Answer 2

for (int i=0; i < params.size(); ++i) {
    message = message.replace("{"+i+"}", params[i]);
}