| 发表于：2007-04-27 20:59:33 楼主 |
login.jsp
<%@ page language= "java " contenttype= "text/html;charset=gb2312 "%>
<%@ taglib uri= "http://struts.apache.org/tags-bean " prefix= "bean "%>
<%@ taglib uri= "http://struts.apache.org/tags-html " prefix= "html "%>
<%@ taglib uri= "http://struts.apache.org/tags-logic " prefix= "logic "%>
<%@ taglib uri= "http://struts.apache.org/tags-tiles " prefix= "tiles "%>
<!doctype html public "-//w3c//dtd html 4.01 transitional//en ">
<html:html lang= "true ">
<head>
<html:base />
<title> login.jsp </title>
<!--
<link rel= "stylesheet " type= "text/css " href= "styles.css ">
-->
</head>
<body>
<h2> 用户登录 </h2>
<html:form action= "/loginaction " method= "post ">
用户名: <html:text property= "name "> </html:text> <br>
密 码: <html:password property= "password "> </html:password> <br>
<html:submit value= "登录 "> </html:submit>
<html:reset value= "重置 "> </html:reset>
</html:form>
</body>
</html:html>
struts-config.xml
<?xml version= "1.0 " encoding= "utf-8 "?>
<!doctype struts-config public "-//apache software foundation//dtd struts configuration 1.2//en " "http://struts.apache.org/dtds/struts-config_1_2.dtd ">
<struts-config>
<data-sources />
<form-beans >
<form-bean name= "loginform " type= "cn.mldn.lxh.struts.form.loginform " />
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<action
attribute= "loginform "
input= "/errors.jsp "
name= "loginform "
path= "/loginaction "
scope= "request "
type= "cn.mldn.lxh.struts.action.loginaction " >
<forward name= "suc " path= "/login_success.jsp "> </forward>
<forward name= "fal " path= "/login_failure.jsp "> </forward>
</action>
</action-mappings>
<message-resources parameter= "cn.mldn.lxh.struts.applicationresources " />
</struts-config>
loginaction.java
/*
* generated by myeclipse struts
* template path: templates/java/javaclass.vtl
*/
package cn.mldn.lxh.struts.action;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
import org.apache.struts.action.action;
import org.apache.struts.action.actionform;
import org.apache.struts.action.actionforward;
import org.apache.struts.action.actionmapping;
import cn.mldn.lxh.struts.form.loginform;
/**
* myeclipse struts
* creation date: 04-27-2007
*
* xdoclet definition:
* @struts.action path= "/login " name= "loginform " input= "/form/login.jsp " scope= "request " validate= "true "
*/
public class loginaction extends action {
/*
* generated methods
*/
/**
* method ＥＸＥＣute
* @param mapping
* @param form
* @param request
* @param response
* @return actionforward
*/
public actionforward ＥＸＥＣute（actionmapping mapping, actionform form,
httpservletrequest request, httpservletresponse response) {
loginform loginform = （loginform) form;// todo auto-generated method stub
string name=loginform.getname（);
string password=loginform.getpassword（);
if（ "mldn ".equals（name)&& "lxh ".equals（password))
{
//跳转到成功页
return mapping.findforward（ "suc ");
}
else
{ //跳转到失败页
return mapping.findforward（ "fal ");
}
}
}
loginform.java
/*
* generated by myeclipse struts
* template path: templates/java/javaclass.vtl
*/
package cn.mldn.lxh.struts.form;
import javax.servlet.http.httpservletrequest;
import org.apache.struts.action.actionerrors;
import org.apache.struts.action.actionform;
import org.apache.struts.action.actionmapping;
import org.apache.struts.action.actionmessage;
/**
* myeclipse struts
* creation date: 04-27-2007
*
* xdoclet definition:
* @struts.form name= "loginform "
*/
public class loginform extends actionform {
/*
* 完成数据验证（是否为空,长度是否符合要求,验证时需要保存错误)
* generated fields
*/
/** password property */
private string password;
/** name property */
private string name;
/*
* generated methods
*/
/**
* method validate
* @param mapping
* @param request
* @return actionerrors
*/
public actionerrors validate（actionmapping mapping,
httpservletrequest request) {
// todo auto-generated method stub
actionerrors errors=new actionerrors（);
if（this.name==null ¦ ¦ " ".equals（this.name))
{
errors.add（ "name ",new actionmessage（ "name.null "));
}
if（this.password==null ¦ ¦ " ".equals（this.password))
{
errors.add（ "password ",new actionmessage（ "password.null "));
}
return null;
}
/**
* method reset
* @param mapping
* @param request
*/
public void reset（actionmapping mapping, httpservletrequest request) {
// todo auto-generated method stub
}
/**
* returns the password.
* @return string
*/
public string getpassword（) {
return password;
}
/**
* set the password.
* @param password the password to set
*/
public void setpassword（string password) {
this.password = password;
}
/**
* returns the name.
* @return string
*/
public string getname（) {
return name;
}
/**
* set the name.
* @param name the name to set
*/
public void setname（string name) {
this.name = name;
}
}
上面几个文件是主要的.
可以当我配置好后运行login.jsp出现如下错误:
http status 500 -
--------------------------------------------------------------------------------
type exception report
message
description the server encountered an internal error （) that prevented it from fulfilling this request.
exception
javax.servlet.servletexception: cannot find actionmappings or actionformbeans collection
org.apache.jasper.runtime.pagecontextimpl.dohandlepageexception（pagecontextimpl.java:825)
org.apache.jasper.runtime.pagecontextimpl.handlepageexception（pagecontextimpl.java:758)
org.apache.jsp.login_jsp._jspservice（login_jsp.java:88)
org.apache.jasper.runtime.httpjspbase.service（httpjspbase.java:94)
javax.servlet.http.httpservlet.service（httpservlet.java:802)
org.apache.jasper.servlet.jspservletwrapper.service（jspservletwrapper.java:324)
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)
root cause
javax.servlet.jsp.jspexception: cannot find actionmappings or actionformbeans collection
org.apache.struts.taglib.html.formtag.lookup（formtag.java:741)
org.apache.struts.taglib.html.formtag.dostarttag（formtag.java:443)
org.apache.jsp.login_jsp._jspx_meth_html_form_0（login_jsp.java:160)
org.apache.jsp.login_jsp._jspx_meth_html_html_0（login_jsp.java:120)
org.apache.jsp.login_jsp._jspservice（login_jsp.java:79)
org.apache.jasper.runtime.httpjspbase.service（httpjspbase.java:94)
javax.servlet.http.httpservlet.service（httpservlet.java:802)
org.apache.jasper.servlet.jspservletwrapper.service（jspservletwrapper.java:324)
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.
--------------------------------------------------------------------------------
apache tomcat/5.0.28
哪位能告诉我这是什么原因呀.... |
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