Tomcat报错 严重:The web application [web01] appears to have started a thread named [PooledThread-1] but has failed to stop it. This is very likely to create a memory leak. 没有关闭ResultSet,PreparedStatement,Connection的后果.用完ResultSet,PreparedStatement,Connec…

1. 问题描述 tomcat跑web项目(其中依赖java项目) 出现大量上述警告 项目起不来 关键字 memory leak 内存泄漏 2. 解决方案 难道是程序写的有问题? 最终 将tomcat VM参数中 内存调大 解决了 -Xms512m -Xmx512m -Xmn300m -Xss2048k -XX:PermSize=512m -XX:MaxPermSize=512m 需要根据机器的配置做相应调整…

前景提要:启动SpringBoot项目报错 原因: DeliveryPointServiceFallBack上面没有加 @Component-_-!…

01-Jul-2016 14:25:30.937 WARNING [localhost-startStop-1] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [ROOT] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to…

1. 问题:日志中出现下面的警告: 警告: The web application [ROOT] appears to have started a thread named [HouseKeeper] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: java.lang.Thread.sleep(Native Method) org.logicalcobw…

今日在重新部署项目时出现此问题,虽然对项目无影响,但问题就是问题.完整信息如下(使用idea工具): 十二月 05, 2015 11:44:27 上午 org.apache.catalina.startup.HostConfig undeploy 信息: Undeploying context []2015-12-05 11:44:27 JRebel: Reloading class 'com.shyy.web.controller.anntation.UserController'.2015-…

只是想记录自己的错误信息,下次再出现就知道怎么操作,不用再查找资料 解决办法: package com.wqq.quartz_test.schedule; import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; import org.springframework.web.context.WebApplicationContext; /** * @author wangqq *…

环境:一个tomcat ,一个工程配置了多数据源,在启动的时候报如下错误: SEVERE: The web application [/qdp-resource-job] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDB…

最近在用maven整合SSH做个人主页时候,在eclipse里面使用tomcat7插件发布项目是没有问题的,但当打包成war之后,使用tomcat7单独发布项目,就出现了以下的错误. 严重: Context [/wangxin] startup failed due to previous errors 八月 16, 2017 7:29:12 下午 org.apache.catalina.loader.WebappClassLoaderBase clearReferencesJdbc 严重: T…

近日发现启动tomcat的时候报如下警告: -- :: org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc 严重: The web application [] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a…

转自:http://www.cnblogs.com/interdrp/p/5632529.html 我的错误如下: 06-Sep-2016 18:57:10.595 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [] registered the JDBC driver [com.mysql.jdbc.…

问题描述 在将Spring Boot程序打包生成的war包部署到Tomcat后,启动Tomcat时总是报错,但是直接在IDEA中启动Application或者用"java -jar"方式运行jar包时都能正常运行.报错信息如下: To prevent a memory leak, the JDBC Driver has been forcibly unregistered. (为了防止内存泄漏,已强制注销JDBC驱动程序.) 开发环境 Spring Boot + MySql + Spr…

catalog . 引言 . OWASP ModSecurity Core Rule Set (CRS) Project . Installation mod_security for Apache . Installation mod_security for nginx . Installation mod_security for IIS . mod_security Configuration Directives . Processing Phases . Variables . Tr…

Web Application Penetration Testing Local File Inclusion (LFI) Testing Techniques Jan 04, 2017, Version 1.0 Contents What is a Local File Inclusion (LFI) vulnerability? Example of Vulnerable Code Identifying LFI Vulnerabilities within Web Application…

转自 http://www.cnblogs.com/tonykan/p/3514749.html lbimba  铜牌会员 这里给广大的煤油推荐一个web网站压力测试工具.它可以用来模拟多个用户操作网站,在程序投入运行时,可以用它来进行程序的测试并得到Web站点的稳定 参数,甚至于可以对一台小型的 Web服务器发动灾难性的拒绝式攻击~~它就是大名鼎鼎的web application stress.二.工具简单设置打开Web Application Stress Tool,很简洁的一个页面(如图1…

Web压力测试是目前比较流行的话题,利用Web压力测试可以有效地测试一些Web服务器的运行状态和响应时间等等,对于Web服务器的承受力测试是个非常好的手法.Web 压力测试通常是利用一些工具,例如微软的Web Application Stress.Linux下的siege.功能全面的Web-CT等等,这些都是非常优秀的Web压力测试工具. 虽然这些工具给我们测试服务器承受能力带来方便,但是它们的危害却更是惊人,甚至于利用随便一种比较全面的测试工具就可以对一台小型的 Web服务器发动灾难性的拒绝式…

刚刚翻笔记翻到一些刚学SharePoint时候解决的一些很2的初级问题,本来是有些挣扎该不该把它们记录到这个blog里的?因为担心这些很初级的文章会拉低这个blog的逼格,但是我的哥们善意的提醒了我一下,说我的逼格本来就不高,于是我就放心的开写了. 其实不开玩笑的讲,做一个SharePoint Administrator很多时候不会碰到很多developer们碰到的那么高大上的问题,难的问题虽然也会经常有,但更多的都是一些琐碎的杂七杂八的问题,可人生不就是从杂七杂八中一点一点积累的过程吗?不记录…

平台环境 Windows Server 2012 R2 Standard, SharePoint Server 2010, Microsoft SQL Server 2012 (SP1) 问题描述 在 SharePoint Central Administration 中 New Web Application 时出现如下错误: The password supplied with the username *** was not correct. Verify that it was ente…

问题描述:在安装完成SharePoint 2010后,进入Central Administration,创建一个新的Web Application,可以正常创建,但访问时却返回404. 平台环境:Windows Server 2012 R2. 分析思路:Central Administration是可以正常访问的,创建时账户(权限)也没有问题,所以初步怀疑是IIS问题. 因为是将原有SharePoint 2010卸载后安装的,当时有将数据库.IIS中应用程序池和Sites中的相关数据都删除了,所…

今天在Intellij Idea中编译项目的时候,运行起来一直会报出如下的错误: Web application not found src/main/webapp 当时感觉应该是什么文件缺少了.所以就直接把这个报错内容放到google上搜索了一下,然后在stackoverflow中按照如下的文章设置,果真跑起来了: http://stackoverflow.com/questions/22542968/intellij-idea-multi-project-wicket-app-does-no…

当你发现SharePoint服务器的CPU或者内存使用率居高不下的时候,很多人都会选择iisreset来让资源使用率降下来.但是在企业环境中,这毫无疑问会使这台服务器中断服务从而影响到用户的使用,所以我更推荐在iisreset之前一定要先试一下去Recycle那个资源使用率较高的web application. 那么Recycle和iisreset相比好处在哪呢? 简单的说,当我们recycle一个web application时,它并不会停止对用户的服务.它是这样工作的,你在IIS Manag…

SYMPTOMS When you browse a Microsoft .NET Framework 2.0 ASP.NET Web application, you may receive one of the following exceptions: Exception 1 Exception type: FileNotFoundException Exception message: Could not load file or assembly 'App_Web_-e9dbmaj,…

What things should a programmer implementing the technical details of a web application consider before making the site public? If Jeff Atwood can forget about HttpOnly cookies, sitemaps, and cross-site request forgeries all in the same site, what im…

开发Java web项目,在tomcat运行后报如下错误: Illegal access: this web application instance has been stopped already. Could not load [org.apache.commons.pool.impl.CursorableLinkedList$Cursor]. The following stack trace is thrown for debugging purposes as well as to…

学习AngularJS的笔记,这个是英文版的,有些地方翻译的很随意,做的笔记不是很详细,用来自勉.觉得写下来要比看能理解的更深入点.有理解不对的地方还请前辈们纠正! 一.关于<Mastering Web Application Development with AngularJS >的pdf和书中示例代码下载: 百度网盘-Mastering Web Application Development with AngularJS 二.用到的工具有,chrome下的插件 Batarang ,用来查看…

01-Jul-2016 10:49:05.875 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [ROOT] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web appli…

Introduction One of the really cool features that are integrated with Visual Studio 2010 is Web.Config (XDT) transformations. ASP.NET Web.Config transformations are a great way to manage configurations in several environments. We can easily change a…

这几天重装系统,装了win10,居然用vs2013打开项目出现下面这个提示错误,搞了很久才知道原因: Even though I am an administrator on the machine, Visual Studio is not running as administrator so it does not have permission to the IIS metabase files.  One solution is to run Visual Studio as admi…

一月 24, 2016 6:42:54 下午 org.apache.catalina.loader.WebappClassLoaderBase checkStateForResourceLoading 信息: Illegal access: this web application instance has been stopped already. Could not load [com.mchange.v2.resourcepool.BasicResourcePool$1DestroyRes…

重启tomcat的时候出错 Illegal access: this web application instance has been stopped already.  Could not load oracle.net.mesg.Message.  The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate…