weblogic

Getting a list of all classloaders in a JVM

生来就可爱ヽ(ⅴ<●) 提交于 2021-02-07 04:51:43
问题 Is it possible to get a list of all class loaders in a JVM or at least all class loaders associated with web apps in a Java EE Server (WebLogic in my case). 回答1: There are good overviews on the class loader hierarchy at: Archived version of http://e-docs.bea.com/wls/docs81/programming/classloading.html http://weblogic.sys-con.com/node/42876 You can use ClassLoader.getParent() to walk through you current application's applications resolution tree, but you really can't look through the children

How to deploy a Spring Boot application on Weblogic 12c (12.1.3)?

a 夏天 提交于 2021-02-04 19:49:52
问题 I'm trying to deploy a simple Spring Boot application on Weblogic 12c (12.1.3), in a developer environment it does work perfectly. However when need to repackage it in a war and to attach it to an earand this does not seem to deploy correctly. This is the stacktrace: <Nov 23, 2016 6:15:13 PM CET> <Error> <Munger> <BEA-2156200> <Unable to load descriptor weblogic.utils.classloaders.GenericClassLoader@6964c078 finder: weblogic.utils.classloaders.CodeGenClassFinder@5715556 annotation: my-app-ear

How to deploy a Spring Boot application on Weblogic 12c (12.1.3)?

青春壹個敷衍的年華 提交于 2021-02-04 19:48:09
问题 I'm trying to deploy a simple Spring Boot application on Weblogic 12c (12.1.3), in a developer environment it does work perfectly. However when need to repackage it in a war and to attach it to an earand this does not seem to deploy correctly. This is the stacktrace: <Nov 23, 2016 6:15:13 PM CET> <Error> <Munger> <BEA-2156200> <Unable to load descriptor weblogic.utils.classloaders.GenericClassLoader@6964c078 finder: weblogic.utils.classloaders.CodeGenClassFinder@5715556 annotation: my-app-ear

Tomcat服务器的下载与安装。并配置到 idear中

强颜欢笑 提交于 2021-02-02 10:33:02
文章目录 前言 一、Tomcat服务器(重点) 软件架构 常见的web服务器 二、下载步骤 注意: 二、将Tomcat配置到 idear中 三、新建一个web项目(重要) 四、IDEA中热部署【重点掌握】 总结 前言   Tomcat 服务器是一个免费的开放源代码的Web 应用服务器,属于轻量级应用服务器,在中小型系统和并发访问用户不是很多的场合下被普遍使用,是开发和调试JSP 程序的首选。对于一个初学者来说,可以这样认为,当在一台机器上配置好Apache 服务器,可利用它响应HTML(标准通用标记语言下的一个应用)页面的访问请求。实际上Tomcat是Apache 服务器的扩展,但运行时它是独立运行的,所以当你运行tomcat 时,它实际上作为一个与Apache 独立的进程单独运行的。 一、Tomcat服务器(重点) 软件架构   1).C/S(Client/Server)(客户端/服务器)结构:桌面、网络版应用程序。例如:QQ,暴风,百度网盘,各种游戏的客户端 特点:在客户端电脑需要安装后才能使用,启动后都有自己的“界面”,运行时,需要要联网。 缺点:制作困难(至少要有客户端程序、服务器程序)、客户端使用麻烦(需要下载安装程序,安装)、后期维护,更新困难(尤其是客户端)。 优点:可以充分的利用客户端硬件资源(CPU、显卡…)可以在界面上显示非常酷炫的效果。   2).B/S

容器、微服务和互联网架构浅谈

喜夏-厌秋 提交于 2021-02-02 08:50:36
随着云服务的兴起,企业应用正在从分层式架构逐步迁移到互联网架构。传统的企业应用架构通常是单一架构(Monolithic),即典型的MVC三层架构。以一个主流的J2EE企业应用而言,其按照模型(数据层)——控制器(服务层)——视图(访问层)进行构建,然后打包为一个war包,部署运行于J2EE应用服务器上,例如Tomcat、JBoss、WebLogic等。 然而,经过多年应用,Monolithic架构也逐渐老化,越来越不适应技术的发展。首先,随着加入的应用功能增多,产生了代码堆积现象,系统越来越庞大和复杂。尤其是引入敏捷开发后,产生了较多问题。例如应用持续集成方法时,自动加载、编译、加载、测试整个应用代码的时间过长,不能快速形成正反馈。其次,组件与组件之间的耦合性太强,所有应用都运行在服务器上的相同进程中。应用规模增大后,只有同时增加应用的副本,将多个副本部署到多个服务器上,无法实现弹性伸缩。最后,开发团队之间,工作交集复杂,协调耗散大。 从长期实践看,Monolithic架构天然的不具备健壮性,因为一旦某个组件出现问题,整个服务基本上就挂了。自身不具备分布式服务能力,通常需要依赖于负载均衡器、数据库HA等来实现服务的分布化和负载分担。相对而言,互联网架构优势在于分布式、去中心化,支持弹性伸缩。其核心是轻应用、微服务。微服务架构也是从Monolithic架构演进来的

浅析Tomcat、JBOSS、WebSphere、WebLogic、Apache【转】

别来无恙 提交于 2021-01-29 22:49:57
确实很详细很不错的文章! 拿来转载一下~ 点击前往👇 浅析Tomcat、JBOSS、WebSphere、WebLogic、Apache 浅析Tomcat、JBOSS、WebSphere、WebLogic、Apache https://blog.csdn.net/u013573133/article/details/23379565 来源: oschina 链接: https://my.oschina.net/lixingsikao/blog/4937628

java.lang.IllegalStateException: :Cannot initialize context because there is already a root application context present

我的梦境 提交于 2021-01-29 13:08:39
问题 I am trying to migrate application deployed on weblogic 12 to tomcat 9 and while doing so I am facing following exception java.lang.IllegalStateException: Cannot initialize context because there is already a root application context present - check whether you have multiple ContextLoader* definitions in your web.xml! content of my web.xml is as follows <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/j2ee"

How to create DefaultMessageListenerContainer in Spring-Boot?

…衆ロ難τιáo~ 提交于 2021-01-29 04:55:41
问题 I am new to Spring-Boot and trying to create DefaultMessageListenerContainer so I can use the weblogic workmanager and run several message listeners in multithreaded fashion. Can someone please provide some example. So far, I found the below solution but how do I implement this in Spring-Boot? <bean class="org.springframework.jms.listener.SimpleMessageListenerContainer"> <property name="connectionFactory" ref="connectionFactory"/> <property name="destination" ref="destination"/> <property

single jms consumer for multiple jms servers

假如想象 提交于 2021-01-28 21:52:33
问题 I am using a distributed jms queue and weblogic is my app server. There are three jms servers deployed in my clustered enviroment. The producers just send the message using name of queue jndi lookup 'udq' for example. Now I have associated a consumer for each jms server and I was able to consume the message, no problem so far. Here is question, can I have a single consumer to consume the messages from the 3 jms servers. The weblogic allows jndi naming for destination lookup with following

Weblogic Jaxws deployment - class does not support JDK1.5

耗尽温柔 提交于 2021-01-28 11:06:56
问题 WebLogic Server Version: 10.3.6.0 Spring version: 3.2.1.RELEASE Java JDK 1.6 I am trying to deploy a Spring application as WAR that uses jaxws into a Weblogic server. The application works well with Jetty. However when deploying(I mean starting deployed app) Weblogic following exception occurs: Caused By: java.lang.UnsupportedOperationException: This class does not support JDK1.5 at weblogic.xml.jaxp.RegistryTransformerFactory.setFeature(RegistryTransformerFactory.java:317) at com.sun.xml.ws