private static void getAttrs(Map<String, String> attr, String s, String[] pairs) {
        // when addiction attr be like "m=10&__addcol1__worldid="
        if (s.endsWith(EQUAL) && pairs.length == 1) {
            attr.put(pairs[0], "");
        } else {
            attr.put(pairs[0], pairs[1]);
        }
    }
Get the attrs in pairs can be complicated in online env
inlong-agent/agent-common/src/main/java/org/apache/inlong/agent/utils/AgentUtils.java