今天遇到这样一个异常: 严重: Servlet.service() for servlet jsp threw exception javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach> 根据异常的提示信息,我们知道不能遍历对应的集合,为什么哪?我调试了一下一到页面就报错,出现问题的地方在页面,又回头看了一...
javax.servlet.http.HttpServlet.service(HttpServlet.java:729) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) root cause javax.servlet.ServletException: javax.servlet.jsp.JspTagException: Don't know how to iterate over supplied "items" in <forEach> org.apache.jasper....
那这样的话出错是肯定的。 Don't know how to iterate over supplied "item" 这句话描述的太标准了! 在此感谢:http://wjm9ooy9.blog.163.com/blog/static/20725728420124303639484/ 教训:严格区分集合与实体类的名称,特别是在同一页面加载或同一个类处理数据的时候。总之一句话:别搞些让人误解的东西,人如此...
org.apache.catalina.fileupload.PartItem has the property fileName but thats not accessible to me as I only have the interface Part which has a getName method, but that one points to the name of the part and not the filename. Is it possible thats a specification error? IMO javax.servlet...
目录 什么叫发布 webapp发布方式 reload 总结 什么叫发布 发布就是让tomcat知道我们的程序在哪里,并根据我们的配置创建Context,进行初始化、启动,如下: 程序所在的位置 创建Context,添加到Host 初始化(创建解析webxml的digester) 启动(初始化filter、listener、servlet) webapp发布方式 在tomcat 中发布webapp的...How...
<Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/> </Context> There are three ways to use theManagerweb application. ...
When user tries to execute rules viakie-serverorIntelligent Process Serverit throws following exception after sending request. How to solve this kind of issue? Raw cause-exception : com.thoughtworks.xstream.mapper.CannotResolveClassException cause-message : com.test.brms.simple.FactOneHandleMessage cla...
In my case, I made a servlet filter that discarded the user's original URL and invoked a "home page" URL of its own choosing when the transition from un-authenticated to authenticated mode was detected. Since there's no callback to support that, I simply looked for the point when the ...
起因:在学习深入刨析tomcat的学习中,第11章,说了调用过滤链的原理,但没有给出实例来,自己经过分析,给出来了一个FilterDemo 在startup包下,创建类ZytFilter,对于调用过滤器,之前不知道需要加上在doFilter方法里面加入filterChain.doFilter(servletRequest,servletResponse); package com.zyt.tomcat.ex11.startup; imp...
at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.53.jar:4.0.FR] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.53.jar:9.0.53] ...