jsp中SQL语句的问题,急!请多多指教
Connection conn=guestbook.GetConn();
Statement sqlrs= conn.createStatement() ;
String sql= "insert into Guestbook(username,tx,email,url,qq,content,ip,sex,date) values(' "+username+ "',' "+tx+ "',' "+email+ "',' "+url+ "',' "+qq+ "',' "+content+ "',' "+ip+ "',' "+sex+ "',' "+time+ "') ";
try{
sqlrs.executeUpdate(sql);
response.sendRedirect( "index.jsp ");
}catch(Exception e){
out.print("出错了");
}
上面是在jsp页面里执行数据插入的代码,执行总是捕获异常,请问是不是我的SQL语句有问题啊。请帮忙诊断一下了。急!