结果显示sql语句不对 不知道为什么 求解

Question

我写的部分代码 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")+"　"); }显示结果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  

Answer 1

'小美'后面有一个中文空格