spring中action无法实例化，Unable to instantiate Action

原创 于 2020-03-22 23:51:46 发布 · 189 阅读 · 0 ·
CC 4.0 BY-SA版权
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
文章标签：

#ssh

一位新手开发者在处理applicationContext.xml配置文件时遇到了难题，尝试了一整天仍未解决，寻求高手帮助，指出代码中的错误。

请问哪位大神能帮我看看这个问题，搞了一天没研究出来，小白一枚，按照一个网上的例子做的，但就是有bug,请指点一下，拜托~在这里插入图片描述这个是applicationContext.xml文件
这个是struts文件

Unable to instantiate Action, XXX, defined for ‘XXXAction‘ in namespace ‘/‘null（SSH报错）
陪衬丶角色的博客
07-05 433
以下是问题代码： Stacktraces Unable to instantiate Action, cn.itcauc.action.AdminLoginAction, defined for 'adminloginAction' in namespace '/'null com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:316) com.opensymph
Unable to instantiate Action
huobengluantiao8
03-04 202
在配置SSJ的时候，打开页面发现提示：无法实例化action Struts has detected an unhandled exception: Messages: userAction Unable to instantiate Action, userAction, defined for 'register_login_add' in namespace '/lub...
action 无法实例化
王小稚的博客
08-15 1642
报错信息如下：各种配置均正确，而且后台还不报错，只有前端页面显示action无法实例化的错误，究其原因是因为，action在struts2.xml的配置有问题，但进行多次对比并没有发现错误，  后来经大神指点， 发现于 classs属性中前后有空格 所致。   目前尚不清楚，为什么会出现前台报错，后台无错误信息的原因， 估计和 struts2 中action加载的顺序有关。     之后补上
Unable to instantiate Action(Action无法实例化)
AtGdut的专栏
11-04 1654
今晚写程序遇到这个问题，网上大多说是大多数问题出在Action里，于是弄了一个晚上也无法解决。 刚刚看了applicationContext.xml里bean的配置，发现原来是对应的Action的class参数写错了。 初学者，权当做笔记提醒自己，大牛勿笑，嘿嘿～～
Unable to instantiate factory class [%s] for factory type [%s]
08-22
对于Hive环境中的“Unable to instantiate”错误，例如`org.apache.hadoop.hive.ql.metadata.Session`无法实例化，这通常与元数据存储的初始化有关。如果Hive的元数据库（如MySQL）未正确初始化，可能会导致此类错误...
unable to instantate action
04-23
好的，我现在需要解决用户在Struts2中遇到的“Unable to instantiate action”错误。首先，我需要回顾一下这个错误的常见原因。根据之前的知识，这类问题通常和配置错误相关，比如类路径问题、依赖缺失或Struts.xml...
Unable to instantiate Action, com.csg.ui.wggl.wgdawh.action.WgdawhYwslAction, defined for 'wgdawhywsl' in namespace '/wggl/wgdawh'Type com.csg.comp.entity.fw.T_FW_WGGZDJBXX not present [WEB:kfgj.tomcat.WGZX.apache-tomcat-8.5.42]
05-11
首先，用户提到的错误“Unable to instantiate Action”通常表示在实例化某个类时出了问题。错误中的“Type not present”说明某个类或类型在运行时无法找到。这里的类型是T_FW_WGGZDJBXX，这可能是一个实体类、依赖...
整合Struts2.1.6+Spring2.5.6+Hibernate3.3.1常见错误解析
`Unable to instantiate Action, saveUserAction, defined for 'saveUser' in namespace '/'`表示Struts2无法实例化`saveUserAction`。这可能是由于Action类没有正确的构造函数，或者Action类的路径在`struts.xml`...
idea启动springboot项目报错;org.springframework.beans.factory.BeanCreationException. Message: Error creating bean with name 'servletEndpointRegistrar' defined in class path resource [org/springframework/boot/actuate/autoconfigure/endpoint/web/ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.cloud.client.serviceregistry.ServiceRegistryAutoConfiguration$ServiceRegistryEndpointConfiguration': Unsatisfied dependency expressed through field 'registration'; nested exception is org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.cloud.client.serviceregistry.Registration' available: expected single matching bean but found 2: eurekaRegistration,consulRegistration 2025-05-27 13:58:16.934 default [main] INFO o.a.catalina.core.StandardService - Stopping service [Tomcat] 2025-05-27 13:58:17.012 default [main] WARN o.a.c.loader.WebappClassLoaderBase - The web applica[tion [api] appears to have started a thread named spring.cloud.inetutils] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) java.lang.Thread.run(Thread.java:748) 2025-05-27 13:58:17.017 default [main] WARN o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat 2025-05-27 13:58:17.449 default [main] INFO o.s.b.a.l.ConditionEvaluationReportLoggingListener - Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2025-05-27 13:58:17.460 default [main] ERROR o.s.b.d.LoggingFailureAnalysisReporter - *************************** APPLICATION FAILED TO START *************************** Description: Field registration in org.springframework.cloud.client.serviceregistry.ServiceRegistryAutoConfiguration$ServiceRegis2025-05-27 13:58:17.012 default [main] WARN o.a.c.loader.WebappClassLoaderBase - The web applica[tion [api] appears to have started a thread named spring.cloud.inetutils] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: sun.misc.Unsafe.park(Native Method) java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039) java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442) java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) java.lang.Thread.run(Thread.java:748) 2025-05-27 13:58:17.017 default [main] WARN o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat 2025-05-27 13:58:17.449 default [main] INFO o.s.b.a.l.ConditionEvaluationReportLoggingListener - Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled. 2025-05-27 13:58:17.460 default [main] ERROR o.s.b.d.LoggingFailureAnalysisReporter - tryEndpointConfiguration required a single bean, but 2 were found: - eurekaRegistration: defined in BeanDefinition defined in class path resource [org/springframework/cloud/netflix/eureka/EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.class] - consulRegistration: defined by method 'consulRegistration' in class path resource [org/springframework/cloud/consul/serviceregistry/ConsulAutoServiceRegistrationAutoConfiguration.class] Action: Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed 25-05-27@13:58:17 INFO - [DUBBO] Run shutdown hook now., dubbo version: 2.0.0.SR1, current host: 127.0.0.1 25-05-27@13:58:17 INFO - [DUBBO] Close all registries [], dubbo version: 2.0.0.SR1, current host: 127.0.0.1 Process finished with exit code 1
05-28
好的，用户遇到了Spring Boot项目启动时的NoUniqueBeanDefinitionException问题，具体是在ServiceRegistryAutoConfiguration中的registration字段有多个bean，导致Eureka和Consul的注册实例冲突。我需要帮他解决这个...
struts2+spring Unable to instantiate Action
NeboFeng的博客
12-28 2299
错误代码：HTTP Status 500 - Unable to instantiate Action, myIndexAction1, defined for 'Index' in namespace '/'Cannot find class [action.IndexAction] for bean with name 'myIndexAction1' defined in ServletCo
访问action无法实例化对象
wakeupxm的博客
01-14 943
今天在编程时报了这样一个错误： Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [cn.iteach.bos.web.action.system.AdminMenuAction]: Constructor threw exception; nested exception
Unable to instantiate Action,
BIG.KE的博客
07-11 940
@org.springframework.beans.factory.annotation.Autowired(required=true)defined for 'takeTime_findAll' in namespace '/'Error框架整合,注解错误,检查dao service action的注解Unable to instantiate Action, cn.test.bos.w...
Unable to instantiate Action错误的解决
11-05 1131
 Unable to instantiate Action, ....action.CertAction, defined for ... in namespace /...null 原因是变量定义：   private UserUtil userUtil = (UserUtil)ServletActionContext.getContext().getSession().get("use
was访问首页报错unable to instantiate action
最新发布
09-24
要解决WebSphere Application Server (WAS) 访问首页报错 “unable to instantiate action” 的问题，可从多个方面进行排查和处理： ### 检查类路径 - 确保所有必需的类文件都在WAS的类路径中。缺失相关的类文件会...
评论
添加红包

请填写红包祝福语或标题

个

红包个数最小为10个

元

红包金额最低5元

当前余额3.43元 前往充值 >
需支付：10.00元
成就一亿技术人!
领取后你会自动成为博主和红包主的粉丝 规则
hope_wisdom
发出的红包
实付元
使用余额支付
点击重新获取
扫码支付
钱包余额 0

抵扣说明：

1.余额是钱包充值的虚拟货币，按照1:1的比例进行支付金额的抵扣。
2.余额无法直接购买下载，可以购买VIP、付费专栏及课程。

余额充值