jsp错误（求帮忙）错误提示在5行

Question

Statement stmt = dbConn.createStatement();
String sql = "select * from user_N where accnumber=;";
sql += "'" + accnumber + "' and password='";
sql += password + "'";
ResultSet rs = stmt.executeQuery(sql);
if(rs.next())%>
/jsp:forward
<%
stmt.close();
dbConn.close();

Answer 1

select * from user_N where accnumber=;" //最后多一个; 去掉即可