关于JavaBean使用的问题 本帖最后由 oicp110 于 2010-03-30 14:07:51 编辑 解决方案 » 免费领取超大流量手机卡，每月29元包185G流量+100分钟通话, 中国电信官方发货 那样写当然有错了，userBean.java里只返回了userID和password的值，而另外2个字段肯定是没有值的。session.setAttribute("usert", rs.getString("usert"));session.setAttribute("userID", rs.getString("userID"));session.setAttribute("username", rs.getString("username"));session.setAttribute("password", rs.getString("password"));By the way, 你没有给出welcome.jsp的正确代码，我看怎么和userBean.java内容一样啊！ welcome.jsp的代码在这<%-- Document : welcome Created on : 2010-3-17, 20:01:41 Author : Administrator--%><%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <h1>WELCOME TO VISIT MY WORLD!</h1> <jsp:useBean id="userbean" scope="page" class="newpackage.userBean"> <jsp:setProperty name="userbean" property="userID"/> <jsp:setProperty name="userbean" property="password"/> <jsp:setProperty name="userbean" property="username"/> </jsp:useBean> <table> <tr> <td>账号</td><td>密码</td><td>昵称</td><td>测试信息</td> </tr> <tr> <font size="30" ><td><%out.print(userbean.getUserID());%></td>   <td><%out.print(userbean.getPassword());%></td>   <td><%out.print(userbean.getUsername());%></td>   <td><%out.print(userbean.getUsert());%></td> </font> <br> <br> </tr> <font size="20" ><td><%out.print(userbean.getUserID());%></td>   <td><%= request.getAttribute("username")%></td>   <td><%= session.getAttribute("username")%></td>   <td><%out.print(userbean.getUsername());%></td> </font> </table> <%out.print(userbean.ss);%> <input type="submit" name="OK" value="确定"> </body></html> 这个帖子有点乱，我重写了一个，大家帮忙看看吧~~http://topic.csdn.net/u/20100401/09/29d52c54-3d6b-480a-b914-b5eda2110394.html?08819407676938734 关于extjs window 的问题，奇怪？？？？？ SAX解析XML,为什么会报内存溢出？ No managedConnections availiable within..错误 调查一下各位报表开发使用什么三方插件 『求救』iframe嵌套jsp中文参数乱码问题 跪求 交友网站 能部署的那种 菜鸟问个弱弱的问题 JSP网站环境配置问题？ 父窗口如何控制子窗口刷新？？？ Tomcat配置虚拟目录之后，log4j不会每天生成新文件 在MyEclipse中配置完tomcat出现的问题，各位大侠，帮忙看看。 编码问题，比较崩溃
session.setAttribute("usert", rs.getString("usert"));
session.setAttribute("userID", rs.getString("userID"));
session.setAttribute("username", rs.getString("username"));
session.setAttribute("password", rs.getString("password"));
By the way, 你没有给出welcome.jsp的正确代码，我看怎么和userBean.java内容一样啊！
Document : welcome
Created on : 2010-3-17, 20:01:41
Author : Administrator
--%><%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd"><html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<h1>WELCOME TO VISIT MY WORLD!</h1>
<jsp:useBean id="userbean" scope="page" class="newpackage.userBean">
<jsp:setProperty name="userbean" property="userID"/>
<jsp:setProperty name="userbean" property="password"/>
<jsp:setProperty name="userbean" property="username"/>
</jsp:useBean> <table>
<tr>
<td>账号</td><td>密码</td><td>昵称</td><td>测试信息</td>
</tr>
<tr>
<font size="30" ><td><%out.print(userbean.getUserID());%></td>  
<td><%out.print(userbean.getPassword());%></td>  
<td><%out.print(userbean.getUsername());%></td>  
<td><%out.print(userbean.getUsert());%></td>
</font>
<br>
<br>
</tr>
<font size="20" ><td><%out.print(userbean.getUserID());%></td>  
<td><%= request.getAttribute("username")%></td>  
<td><%= session.getAttribute("username")%></td>  
<td><%out.print(userbean.getUsername());%></td>
</font>
</table>
<%out.print(userbean.ss);%>
<input type="submit" name="OK" value="确定"> </body>
</html>
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