request.setAttribute( "userInfo ", uib);
/*dd*/ System.out.println(uib);
RequestDispatcher rd=request.getRequestDispatcher( "profile.jsp ");
rd.forward(request, response);
我在已使用以上的代码把一个包含用户信息的bean设置到request中，该怎么在forward到的profile.jsp页中读取啊？
我在profile.jsp中加了以下代码：
<jsp:directive.page import= "com.data.UserInfoBean "/>
<%@ taglib uri= "http://java.sun.com/jstl/core_rt " prefix= "c " %>
<jsp:useBean id= "userInfo " class= "UserInfoBean " scope= "request ">
<jsp:setProperty name= "userInfo " property= "* " />
</jsp:useBean>
调用时用的：
<c:out value= "${param.userInfo.userName} " />
但是老是提示出错：
org.apache.jasper.JasperException: /admin/profile.jsp(5,0) The value for the useBean class attribute UserInfoBean is invalid.（jsp:useBean那一行）
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1175)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1117)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2164)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2214)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2220)
org.apache.jasper.compiler.Node$Root.accept(Node.java:457)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2164)
org.apache.jasper.compiler.Generator.generate(Generator.java:3322)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:199)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:296)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:265)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:564)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:299)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.qxauc.ViewUserDo.doPost(ViewUserDo.java:82)
com.qxauc.ViewUserDo.doGet(ViewUserDo.java:22)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.authenticate.AdminAccessFilter.doFilter(AdminAccessFilter.java:55)
com.uitl.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:27)
----------------------------------------------------
或者报错：
org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:599)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:141)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:315)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
com.qxauc.ViewUserDo.doPost(ViewUserDo.java:82)
com.qxauc.ViewUserDo.doGet(ViewUserDo.java:22)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)