使用Mule表达式语言和Regex从字符串中获取十进制值

#[message.payload match /[0-9]+/]

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    public static void main(String[] args) {
        String input = "This is a string with decimal value 123.45";
        String pattern = "\\d+\\.\\d+";

        Pattern decimalPattern = Pattern.compile(pattern);
        Matcher matcher = decimalPattern.matcher(input);

        if (matcher.find()) {
            String decimalValue = matcher.group();
            System.out.println("Decimal value: " + decimalValue);
        }
    }
}