|
四、实例 登陆页面：index.jsp Html代码 <%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8" %> <html> <head> <title>系统登录</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <link href="css/vbulletin.css" rel="stylesheet" type="text/css"> <style type="text/css"> .btn { font-family: "Tahoma", "宋体"; font-size: 9pt; color: #001E3C; BORDER-BOTTOM: #6794BC 1px solid; BORDER-LEFT: #8BB8E0 1px solid; BORDER-RIGHT: #6794BC 1px solid; BORDER-TOP: #8BB8E0 1px solid; background-image: url(image/buttonbg.gif); CURSOR: hand; font-style: normal; padding-left: 3px; padding-right: 3px; } </style> <script type="text/javascript"> function doLogin(){ var vform = document.loginform; if(!loginform.username.value){ alert("请输入用户名！") return; } if(!loginform.password.value){ alert("请输入密码！") return; } vform.submit(); } </script> </head> <body topmargin="0" leftmargin="0" > <form action="receive.jsp" name="longinForm" method="post"> <table width="100%" height="100%"> <tr> <td align="center" valign="middle"> <TABLE id="form1" cellspacing="0" cellpadding="0" border="0" style="width: 500;"> <CAPTION style="display: none"> </CAPTION> <TR> <TD> <TABLE width="100%" height="100%" cellspacing="0" cellpadding="0" border="0" style="table-layout: fixed"> <TR> <TD valign="top"> <FIELDSET id="form1_group0" style="width: 100%;"> <LEGEND>系统登录</LEGEND> <DIV> <DIV style="width: 100%; height: 100%"> <TABLE width="100%" cellspacing="0" cellpadding="4" border="0" style="table-layout: fixed;"> <COLGROUP> <COL width="100"></COL> <COL width="50%"></COL> <COL width="100"></COL> <COL width="50%"></COL> </COLGROUP> <TR> <TD align="right"> 用户名 </TD> <TD class="InnerTableContentCell"> <input type="text" name="username" style="width: 100%;"> </TD> <TD align="right"> 密码 </TD> <TD> <input type="password" name="password" style="width: 100%;" /> <input type="hidden" name="action2" value="0"> </TD> </TR> <TR> <TD colSpan="4" align="right"> <input type="button" name="login" value="登录" onclick="this.form.submit();" class="btn"/> </TD> </TR> </TABLE> </DIV> </DIV> </FIELDSET> </TD> </TR> </TABLE> </TD> </TR> </TABLE> </td> </tr> </table> </form> </body> </html> 接收数据页面：receive.jsp Html代码 <%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8" info="动作标签"%> <jsp:useBean id="userVo" class="exercise.vo.UserVo" scope="request"> <jsp:setProperty name="userVo" property="name" param="username"/> <jsp:setProperty name="userVo" property="password" param="password"/> </jsp:useBean> <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" > <link href="css/vbulletin.css" rel="stylesheet" type="text/css"> </head> <body> This is my JSP page. <br> <hr>用<jsp:getProperty>获取表单中提交过来的值<br> name:<jsp:getProperty property="name" name="userVo"/><br> password:<jsp:getProperty property="password" name="userVo"/> <br><br><hr> <% out.println("从vo对象中直接获取：<br> name:"+userVo.getName()+ "<br>password:"+userVo.getPassword()+"<br>"); String serviceName = request.getServerName();//1.jsp内部的request对象 out.println("<br><hr>服务器名: "+serviceName); out.println("<br>MIME类型： "+response.getContentType());//2.jsp内部的response对象 session.setAttribute("sessionName","jsp内部的session对象");//3.jsp内部的session对象 out.println("<br>session对象: "+session.getAttribute("sessionName"));//4.jsp内部的out对象 pageContext.setAttribute("pageContext","上下文环境的引用");//5.jsp内部的pageContext对象 //6. application //7. config ServletConfig的实例 //8. page java.lang.Object的实例 //9. exception 必须在page指令中isErrorPage=true的页面使用 java.lang.Throwable的一个实例 String info = pageContext.getServletContext().getServerInfo(); out.println("获取page指令中的info属性："+info); %> </body></html> (责任编辑：admin) |