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两道面试小Demo
2022-06-28 09:06:00 【C_x_330】
会话跟踪技术几点注意
Cookie是Web服务器发送给客户端的一小段信息,客户端请求时,可以读取该信息发送到服务器端
关闭浏览器意味着临时会话ID丢失,但所有与原会话关联的会话数据仍保留在服务器上,直至会话过期
在禁用Cookie时可以使用URL重写技术跟踪会话
在使用JDBC执行SQL语句两种创建对象执行的方式
Statement sta=con.createStatement();
ResultSet rst=sta.executeQuery("select * from book");PreparedStatement pst=con.prepareStatement("select * from book");
ResultSet rst=pst.executeQuery();
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