java中带回调函数的字符串替换,类似js中的replace(rgExp,function)

https://blog.csdn.net/weixin_33834075/article/details/91599852

 

 

 

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

public class TestRegExp {
    public static void main(String[] args) {
        String str = "insert into @@table(@@dataAsIn1sertKeys:aaa.aa) values( @@dataAsInsertValues )";
        System.out.println(replaceString(str));
    }

    public static String replaceString(String str) {
        Pattern pattern = Pattern.compile("@@[0-9a-zA-Z:.]+");
        Matcher m = pattern.matcher(str);
        if (!m.find()) {
            return str;
        }

        StringBuffer sb = new StringBuffer();
        int index = 0;
        do {
            index++;
            String group0 = m.group(0);
            System.out.println(group0);
            m.appendReplacement(sb, "aaaa_" + index + "_" + m.group(0));
        } while (m.find());

        m.appendTail(sb);
        return sb.toString();
    }

}