我正在将WebSphere应用程序迁移到JBoss EAP 6.4。在部署期间，我收到以下错误：
无法确定servlet：java.lang.NullPointerException
使用此堆栈跟踪：
12:48:06,194 DEBUG [org.jboss.as.security] (MSC service thread 1-2) Qualified url patterns: {/=PatternInfo[pattern=/,type=3,isOverridden=false,qualifiers=[]]}
12:48:06,194 FINE [javax.enterprise.resource.webcontainer.jsf.config] (ServerService Thread Pool -- 132) ConfigureListener.contextInitialized(/scWeb)
12:48:06,224 DEBUG [org.jboss.as.web.security] (ServerService Thread Pool -- 96) Failed to determine servlet: java.lang.NullPointerException
at org.jboss.as.web.deployment.JBossContextConfig.beforeLoadOnStartup(JBossContextConfig.java:666) [jboss-as-web-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:178) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
at org.jboss.as.web.deployment.JBossContextConfig.lifecycleEvent(JBossContextConfig.java:260) [jboss-as-web-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:115) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3592) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
at org.apache.catalina.core.StandardContext.start(StandardContext.java:3802) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
at org.jboss.as.web.deployment.WebDeploymentService.doStart(WebDeploymentService.java:163) [jboss-as-web-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.web.deployment.WebDeploymentService.access$000(WebDeploymentService.java:61) [jboss-as-web-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.web.deployment.WebDeploymentService$1.run(WebDeploymentService.java:96) [jboss-as-web-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [rt.jar:1.8.0_45]
at java.util.concurrent.FutureTask.run(Unknown Source) [rt.jar:1.8.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [rt.jar:1.8.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [rt.jar:1.8.0_45]
at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_45]
at org.jboss.threads.JBossThread.run(JBossThread.java:122)
12:48:43,934 DEBUG [org.jboss.ejb.client.txn] (Periodic Recovery) Send recover request for transaction origin node identifier 1 to EJB receiver with node name inbaghpc00516
12:52:40,593 ERROR [org.jboss.as.controller.management-operation] (HttpManagementService-threads - 1) JBAS013412: Timeout after [300] seconds waiting for service container stability. Operation will roll back. Step that first updated the service container was 'deploy' at address '[("deployment" => "PCB-5.3.ear")]'
这是如何引起的？如何解决？
以下是scweb ....
的web.xml ....
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_1234567890" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>Shortcode Management Web</display-name>
<distributable />
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext-*.xml</param-value>
</context-param>
<filter>
<filter-name>authenticationFilter</filter-name>
<filter-class>
com.singtel.pcb.scweb.filter.AuthenticationFilter
</filter-class>
</filter>
<filter-mapping>
<filter-name>authenticationFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>
org.apache.struts.action.ActionServlet
</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>
/WEB-INF/struts-config.xml
</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- Struts Action Servlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!--
<resource-ref id="ResourceRef_12345678909">
<res-ref-name>jdbc/pcbDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
-->
<error-page>
<error-code>404</error-code>
<location>/404.html</location>
</error-page>
</web-app>
的struts-config.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">
<struts-config>
<!-- Form Beans -->
<form-beans>
<form-bean name="LoginForm" type="com.singtel.pcb.scweb.forms.LoginActionFormBean" />
<!--many like this-->
</form-beans>
<global-forwards>
<!-- Default forward to "Welcome" action -->
<!-- Demonstrates using index.jsp to forward -->
<forward name="failure" path="/Error.jsp" />
<forward name="response" path="/Response.jsp" />
<forward name="Error" path="/Error.jsp" />
</global-forwards>
<action-mappings>
<action
name="LoginForm"
attribute="LoginForm"
type="com.singtel.pcb.scweb.action.LoginAction"
path="/pages/login"
input="/pages/login.jsp"
scope="request"
validate="true">
<forward name="ShortcodeHome" path="/pages/lumlum.jsp" />
<forward name="NumberLevelHome" path="/pages/sumnum.jsp" />
<forward name="Failure" path="/pages/login.jsp" />
</action>
<!--many like this-->
</action-mappings>
<controller locale="false" maxFileSize="500K" nocache="true" processorClass="org.springframework.web.struts.DelegatingRequestProcessor" />
<message-resources parameter="com.singtel.pcb.scweb.resource.ApplicationResources"/>
<plug-in
className="org.springframework.web.struts.ContextLoaderPlugIn">
<set-property property="contextConfigLocation"
value="/WEB-INF/actions-*.xml" />
</plug-in>
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames"
value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml" />
</plug-in>
</struts-config>
的applicationContext-config.xml中
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"
"http://www.springframework.org/dtd/spring-beans-2.0.dtd">
<beans>
<bean id="userRoleService" class="com.singtel.pcb.sam.dto.UserRoleService">
<property name="dataSource" ref="dataSource"></property>
</bean>
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>
classpath:com/singtel/pcb/scweb/resource/scweb.properties
</value>
</list>
</property>
</bean>
<bean id="dataSource"
class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName">
<value>${database.connection.datasource}</value>
</property>
</bean>
</beans>
答案 0 :(得分：1)
Failed to determine servlet:如果环境设置正确web.xml。
在Web容器（.war）所需的给定方案datasource中，不提供Web存档。这意味着它被不知情的评论，因为intialContext.lookup()失败，这是从过滤类调用的，基本上在Filter
web.xml（AuthFilter.java）
所以取消评论以下几行解决了问题，这可以启动网络生命周期，因此Failed to determine servlet问题解决了....
<resource-ref id="ResourceRef_12345678909">
<res-ref-name>jdbc/pcbDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
除了查找此错误之外，它还可能会发起我们在此讨论的web container
引起：java.sql.SQLException：ORA-28001：密码已过期
这表示您设置的数据库密码已过期。转到并重置密码。就我而言，它是Oracle。我的JBoss服务器配置中明确提到了密码 - stanalone.xml。所以我已登录并在SQL Plus命令行实用程序中重置它。
执行此操作时，请确保删除JBoss tmp foler缓存数据，因为Web容器已缓存并且密码存储为容器内的某个状态。