谁能给我指点一下session对象的setAttribute()和getAttribute()方法怎么使用啊？
这是我写的一个程序，过程是在choice.jsp文件中选择要买的物品，提交以后在session.jsp文件中将要买的物品显示出来。
choice.jsp文件如下：
<html>
<head>
<title>
Doing Some Shoppings
</title>
</head>
<body>
<form action= "show.jsp " method= "post ">
What do you want to buy: <input type= "radio " name= "choice " value= "basketball " checked> basketball
<input type= "radio " name= "choice " value= "football "> football
<input type= "radio " name= "choice " value= "baseball "> baseball
<br> <br>
<input type= "submit " name= "go ">
<input type= "reset " name= "reset ">
</form>
<%
session.setArribute( "choice ",value)
%>
</body>
</html>
报错如下：
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 17 in the jsp file: /111/choice1.jsp
Generated servlet error:
C:\Program Files\Apache Software Foundation\Tomcat 5.0\work\Catalina\localhost\web\org\apache\jsp\_111\choice1_jsp.java:61: '; ' expected
^
1 error
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:332)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:412)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.0.28 logs.
show.jsp文件如下：
<%@ page contentType= "text/html;charset=GB2312 " %>
<HTML>
<BODY>
the things you bought are: <%session.getAttribrute( "choice "); %>
</BODY>
</HTML>
[解决办法]
value 是radio属性
但是你不能直接再java代码里面用
你要在show.jsp里面 按下面的得到这个选中的值
String value= request.getParameter( "choice ");
然后out.println(value);
[解决办法]
session.setArribute( "choice ",value);中的value没有定义，一般session不这么用，session是用来保存客户提交的信息的，通常一个页面用来给客户提交信息，也就你写的choise.jsp;客户再把信息提交给session页面，我们记为session.jsp;这个页面中就要用到session.setArribute( "choice ",value);问题来了，其中的value是一个变量，是一个java变量，它的值是怎么获得的呢？这就要通过你在choise里面定义的表单form来获得了，用request对象获得赋值给value,然后在通过session.setArribute( "choice ",value);最后就是你的show.jsp页面了这个时候用session.getAttribrute( "choice "); 就可以获得刚刚set的值。
说的不好，见谅～～～
我的异常网推荐解决方案：The server encountered an internal error () that prevented it from fulfilling this request.,http://www.myexception.cn/java-web/317.html
我的异常网推荐解决方案：org.apache.jasper.JasperException: Unable to compile class,http://www.myexception.cn/j2ee/2308.html