我寫的部分代碼?sb.append("select * from imooc_goddess where 1=1"); //sb.append(" where user_name like ? and mobile like ?"); if(params!=null &&params.size()>0){ for (int i = 0; i < params.size(); i++) { Map<String,Object> map=params.get(i); sb.append(" and "+map.get("name")+" "+map.get("rela")+" "+map.get("value")+"　"); }顯示結(jié)果select * from imooc_goddess where 1=1 and user_name = '小美'　 and mobile = '18451922609'　Exception in thread "main" com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?€€ and mobile = '18451922609'?€€' at line 1 ?