select * from tb where time=XXX and (affectAreaCode like %1% or affectAreaCode like ‘%2%’…)

DBObject dbObject = new BasicDBObject();
String[] areaids = areaCode.split(",");
BasicDBList values = new BasicDBList();
for (String areaid : areaids) {
    Pattern pattern = Pattern.compile("^.*" + areaid + ".*$"
 
, Pattern.CASE_INSENSITIVE);
    values.add(new BasicDBObject("affectAreaCode", pattern));
}
dbObject.put("$or", values);