OP130/src/com/mes/util/Base64Utils.java

package com.mes.util;

import org.apache.commons.codec.binary.Base64;

import java.nio.charset.StandardCharsets;

public class Base64Utils {
    public static String getBase64(String str) {
        if (str == null) {
            return "";
        }
        byte[] binaryData = str.getBytes(StandardCharsets.UTF_8);
        return Base64.encodeBase64String(binaryData);
    }
}