简单句子语法问题,帮忙
方舟 2003-10-15 11:17:41 String time1=new java.util.Date().toLocaleString();
String update="update linkway.news set news_title='"+title+"',news_writer='"+writer+"',news_time='to_date('"+time1+"','yyyy-mm-dd hh24:mi:ss')',news_content='"+content+"' where news_id='"+id+"'";
conn.executeUpdate(update);
请问以上输入to_date值,写法错哪?