第一个页面输入数据后跳转到第二个页面时出现错误。。
菜鸟寻答案。。。。不知道怎么改。。因为页面中没报错。。
页面一 index.jsp
用户名：
密码：
页面二 dologon.jsp
<%
String name=request.getParameter("name");
String pwd=request.getParameter("pwd");
%>
<%
if(name.equals("")||pwd.equals("")){
%>
<%}else{
%>
<jsp:param name="username" value ="<%= name %>"/>
<jsp:param name="userpwd" value ="<%= pwd %>"/>
</jsp:forward>
<%} %>
页面三 success.jsp
<%String username=request.getParameter("username");
String userpwd=request.getParameter("userpwd");
if(username==null)
username="";
username=new String(username.getBytes("ISO-8859-1"),"gbk");
if(userpwd==null)
userpwd="";
userpwd=new String(userpwd.getBytes("ISO-8859-1"),"gbk");
%>
| 欢迎登录！ |
|
用户名：<%=username%> 密码：<%=userpwd%> |
返回
页面四 false.jsp
登录失败！
请输入用户名或！
返回
报错。。
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:156)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
org.apache.jasper.JasperException: Unable to load class for JSP
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:620)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
root cause
java.lang.ClassNotFoundException: org.apache.jsp.dologon_jsp
java.net.URLClassLoader$1.run(Unknown Source)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(Unknown Source)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:134)
org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:66)
org.apache.jasper.JspCompilationContext.load(JspCompilationContext.java:618)
org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:144)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:329)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.
