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插上翅膀的小猪：
同意三楼的意见。
下载服务器上的文件-纯java处理 -
ITQCF：
一楼所言极是啊，encodeFileName这个方法为嘛找不到 ...
下载服务器上的文件-纯java处理 -
u011296404：
这个不适用与ie浏览器
下载服务器上的文件-纯java处理 -
冬天秋天：
博主 这个貌似在oracle 数据库下没有成功啊……
更新一个表的字段值等于另一个表的字段值的SQL语句 -
pangpang514：
WebUtils是在org.springframework.w ...
下载服务器上的文件-纯java处理
13:34:14,328 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception java.lang.ClassCastException: com.ceno.mcps.portal.action.www.ListAllContentAction at com.opensymphony.xwork2.util.LocalizedTextUtil.findText(LocalizedTextUtil.java:362) at com.opensymphony.xwork2.TextProviderSupport.getText(TextProviderSupport.java:224) at com.opensymphony.xwork2.ActionSupport.getText(ActionSupport.java:99) at org.apache.struts2.components.Text.end(Text.java:158) at org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:43) at org.apache.jsp.list_005fcontent_005fbefore_005flogin_jsp._jspx_meth_s_005ftext_005f1(list_005fcontent_005fbefore_005flogin_jsp.java:316) at org.apache.jsp.list_005fcontent_005fbefore_005flogin_jsp._jspx_meth_s_005fiterator_005f0(list_005fcontent_005fbefore_005flogin_jsp.java:220) at org.apache.jsp.list_005fcontent_005fbefore_005flogin_jsp._jspx_meth_s_005fif_005f0(list_005fcontent_005fbefore_005flogin_jsp.java:151) at org.apache.jsp.list_005fcontent_005fbefore_005flogin_jsp._jspService(list_005fcontent_005fbefore_005flogin_jsp.java:108) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:373) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:336) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292) at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:139) at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178) at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:343) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:213) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150) at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48) at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ParametersInterceptor.intercept(ParametersInterceptor.java:161) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:107) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:115) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.PrepareInterceptor.intercept(PrepareInterceptor.java:115) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:170) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:123) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219) at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:218) at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:216) at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:507) at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:421) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:595) 13:34:14,359 ERROR [[default]] Servlet.service() for servlet default threw exception java.io.IOException: Stream closed at org.apache.jasper.runtime.JspWriterImpl.ensureOpen(JspWriterImpl.java:204) at org.apache.jasper.runtime.JspWriterImpl.flushBuffer(JspWriterImpl.java:115) at org.apache.jasper.runtime.JspWriterImpl.flush(JspWriterImpl.java:173) at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:956) at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:609) at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:119) at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178) at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:343) at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248) at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:50) at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:507) at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:421) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446) at java.lang.Thread.run(Thread.java:595)
在用struts2的时候报了这样的错误，搞了很长时间，最后终于解决了。我在main.jsp页面嵌入了两个inclue标签，引入了两个类。
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="s" uri="/struts-tags" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
</head>
<body onload="javascript:utopMenu();">
<s:form action="" method="post" theme="simple">
<table width="100%" border="0" align="center" cellpadding="0" cellspacing="0">
<tr>
<td rowspan="3" valign="top">
<iframe name="rightFrame" id="rightFrame" src="listAllContent.action" frameborder="0" height="580px" width="100%"
scrolling="auto"></iframe>
</td>
</tr>
<tr>
<td height="10"></td>
</tr>
<tr>
<td>
<iframe src="preShowCategory.action" height="400px" scrolling="auto"
width="200px"></iframe>
</td>
</tr>
</table>
<div class="footer"></div>
</s:form>
</body>
</html>
在strust.xml里
<action name="preView" class="com.ceno.mcps.portal.action.www.PreViewAction">
<result name="success">/main.jsp</result>
</action>
<action name="listAllContent" class="com.ceno.mcps.portal.action.www.ListAllContentAction">
<result name="success">/list_content_before_login.jsp</result>
</action>
<action name="preShowCategory" class="com.ceno.mcps.portal.action.category.PreShowCategoryAction">
<result name="success">/left_category.jsp</result>
</action>
当我请求preView.action 的时候,也就会去调用preShowCategory,和listAllContent，我在preShowCategory这个action里继承了一个baseAction ,我具体实现了这些
public class BaseAction
extends ActionSupport
implements SessionAware, ModelDriven<WapStyleBean>
{......}
在listAllContent 里面我继承了base2Action 里面实现了
public class Base2Action
extends ActionSupport
implements SessionAware
{
......
}
这样就出问题了，因为baseAcion 里实现了ModelDriven接口，这样在调用listAllContent 的时候就报错了，将他们都继承baseAction是真确的，都继承base2Ation也是正确的，具体原因还没搞清楚，先记录下来，有时间了再补充进来。
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更新一个表的字段值等于另一个表的字段值的SQL语句
2012-02-10 09:22 3554将id相同的B表的name更新到A表 表a 字段id ... -
Oracle完全卸载
2012-02-04 11:40 746Oracle完全卸载 系统环境： 1、操作系统：Windo ... -
计算两个日期之间的月份
2011-11-21 15:34 915select round(months_between(TRU ... -
oracle修改排序内存及批量插入数据
2011-08-19 16:22 984显示内存大小：show parameters area_s ... -
集合参数绑定变量的实现
2010-03-11 10:44 1439问题的引出 select ename from em ... -
oracle函数
2010-03-03 15:18 726向前按自然日推n个月的函数 select add_month ... -
Oracle 概念（Oracle 10.2）
2010-02-20 13:26 11711、Oracle介绍 本章提供 ... -
SQL 的解析顺序
2009-12-23 11:44 794SQL code标准的 SQL 的解析顺序为: (1). ... -
Orcale创建临时表
2008-11-05 16:49 1973在Oracle8i或以上版本中 ... -
Oracle学习（-）概念
2008-10-02 13:37 2543一、SQL语句可分为5类： 1. 查询语句 ：用于检索数据库 ... -
explain plan，autotrace，tkprof，执行计划和静态统计信息的解读
2008-08-29 09:58 3504explain plan，autotrace，tkprof，执 ... -
表的其他的重要物理参数
2008-08-29 09:56 1057表的其他的重要物理参数 1、MSSM(Manual segm ... -
平面数据的导出与导入
2008-08-29 09:54 1383平面数据的导出与导入_1 较少数据的导出 1、 proc ... -
层次查询
2008-08-29 09:51 1137层次查询 create table emp_hire as ... -
按照一定顺序提取数据
2008-08-29 09:46 1073按照一定顺序提取数据研究 create table xxx ... -
查询key唯一 时间最早的记录列表
2008-08-28 14:41 1542查询key唯一 时间最早的记录列表 select a.* ... -
Oracle的结构体系的抽象(2)
2008-07-23 14:30 903数据库的体系结构---老王家与ORACLE的基本内容的对照 ... -
Oracle的结构体系的抽象(1)
2008-07-23 14:23 1021Oracle的结构体系的抽象 一个狂热摄影爱好者—老王的幸福家 ... -
3—如何构建高效的、稳定的、高可用性的oracle应用
2008-07-23 14:14 1005发展趋势 oracle成为主流数据库 ... -
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通过`com.opensymphony.xwork2.util.reflection`和`com.opensymphony.xwork2.injection`包，你可以了解到对象的创建、依赖注入以及AOP（面向切面编程）的实现。 10. **测试支持**： `test`目录下的代码展示了单元...
2. **类型转换（Type Conversion）**：`com.opensymphony.xwork2.converters`包提供了类型转换的支持。XWork通过`Converter`接口实现各种数据类型的自动转换，如字符串到日期、数字等，极大地简化了开发者的工作。 ...
6. **ValueStack**：XWork使用`com.opensymphony.xwork2.util.ValueStack`来存储和传递模型对象到视图。它可以方便地将Action的属性暴露给JSP或其他视图技术，实现数据绑定。 7. **配置管理**：XWork的配置主要通过...
7. **国际化与本地化**：XWork支持多语言环境，通过`com.opensymphony.xwork2.util.LocalizedTextUtil`类，可以实现动态加载和显示不同语言的文本资源。 通过研究“trunk”目录下的源码，开发者不仅可以理解XWork的...
XWork是Struts2的核心组件，它负责处理Action的业务逻辑和控制流程。在深入理解Struts2与XWork的关系之前，我们首先需要了解这两个概念的基础知识。 Struts2框架是在原有的Struts1的基础上进行改进和升级的，它克服...