请问，这段代码如何老是报错

public static User validate(String username,String password) throws UserNotFoundException, PasswordNotCorrectExeception {
        Connection conn = null;
        Statement stmt = null;
        ResultSet rs = null;
        User u = null;
        try {
            conn = DB.getConn();
            stmt = DB.getStmt(conn);
            String sql = "select password from user where username = '" + username + "'";
            rs = DB.executeQuery(stmt, sql);
            
            if(!rs.next()) {
                throw new UserNotFoundException();
            } else if (!rs.getString("password").equals(password)) {
                throw new PasswordNotCorrectExeception();
            } else {
                u = new User();
                u.setAddr(rs.getString("addr")); //就是这里开始报错，找不到addr,但是数据库
//确实有addr，而且把下面额放上来，都是一样报错，找不到行。
                u.setId(rs.getInt("id"));
                u.setPassword(rs.getString("password"));
                u.setPhone(rs.getString("phone"));
                u.setUsername(rs.getString("username"));
                u.setRdate(rs.getTimestamp("rdate"));
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return u;
    }