import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class StringUtils {
public static String composeMessage(String template,Properties data) throws Exception {
Pattern p = Pattern.compile("\\$\\{(\\w+)\\}", Pattern.MULTILINE);
Matcher m = p.matcher(template);
while (m.find()) {
template = template.replace(m.group(), data.getProperty(m.group(1)));
}
return template;
}
/**
* @param args
*/
public static void main(String[] args) {
String template="尊敬的客戶${customerName}妳好！本次消費金額${amount}，您帳戶${accountNumber}上的余額為${balance}";
Properties prop = new Properties();
prop.put("customerName", "張三");
prop.put("amount", "10");
prop.put("accountNumber", "No.123456");
prop.put("balance", "80.5");
try {
System.out.println(composeMessage(template, prop));
} catch (Exception e) {
e.printStackTrace();
}
}
}
//利用正則表達式，匹配妳的變量