将 {{xxx}} 替换为 %s

Question

如何将下面句子中的

{{......}}

替换为

%s

？

String str="Your appointment with {{provider_name}} on {{start_time}} is cancelled at {{careCenter_name}}. Call {{careCenter_phoneNumber}} for queries.";

结果应该是这样的：

Your appointment with %s on %s is cancelled at %s. Call %s for queries.";

Answer 1

使用 String.replaceAll() 或 String.replaceFirst()

Answer 2

    String str="Your appointment with {{provider_name}} on {{start_time}} is cancelled at {{careCenter_name}}. Call {{careCenter_phoneNumber}} for queries.";
    String reg="(?:\\{\\{([\\w_-]+)\\}\\})";
    Pattern p = Pattern.compile(reg);
    Matcher m = p.matcher(str);
    while(m.find()){
        str = str.replace(m.group(0), "%s");
    }
    System.out.println(str);

当您想要处理用两个花括号括起来的实际值时，可以使用 m.group(1) 。

Answer 3

尝试使用这个正则表达式：-

String s = "Your appointment with {{provider_name}} on {{start_time}}";
s = s.replaceAll("\\{.*?\\}\\}", "%s");

输出：- 您于 %s 与 %s 的约会

Answer 4

将此正则表达式与

String.replaceAll()

方法一起使用：

str.replaceAll("\\{\\{.+?\\}\\}", "%s")