我为Inject bean设置了一个项目 但是，当您尝试开始获取空指针错误 你能告诉我没有吗？
的public_html \ WEB-INF \面对-config.xml中
<?xml version='1.0' encoding='UTF-8'?>
<faces-config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
version="2.2"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd">
<application>
<locale-config>
<default-locale>ru</default-locale>
</locale-config>
<resource-bundle>
<base-name>by.softclub.abank.admin.ui.resources.Labels</base-name>
<var>lbl</var>
</resource-bundle>
<resource-bundle>
<base-name>by.softclub.abank.admin.ui.resources.Regexp</base-name>
<var>regexp</var>
</resource-bundle>
<action-listener>org.primefaces.application.DialogActionListener</action-listener>
<navigation-handler>org.primefaces.application.DialogNavigationHandler</navigation-handler>
<!-- <view-handler>org.primefaces.application.DialogViewHandler</view-handler> -->
<el-resolver>
org.primefaces.application.exceptionhandler.PrimeExceptionHandlerELResolver
</el-resolver>
</application>
<factory>
<exception-handler-factory>
org.primefaces.application.exceptionhandler.PrimeExceptionHandlerFactory
</exception-handler-factory>
</factory>
<lifecycle>
<phase-listener>by.softclub.abank.admin.ui.faces.UniqueSessionPhaseListener</phase-listener>
</lifecycle>
</faces-config>
的public_html \ WEB-INF \ beans.xml中
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/beans_1_1.xsd"
version="1.2" bean-discovery-mode="annotated">
<!-- some content -->
</beans>
UniqueSessionPhaseListener
public class UniqueSessionPhaseListener implements PhaseListener {
@Inject
ApplicationBean applicationBean;
public PhaseId getPhaseId() {
return PhaseId.RENDER_RESPONSE;
}
public void afterPhase(PhaseEvent phaseEvent) {
}
public void beforePhase(PhaseEvent phaseEvent) {
if (applicationBean.sessionIntercepted(FacesUtils.getSession())) {
SessionBean sessionBean = (SessionBean) FacesUtils.getSession().getAttribute("sessionBean");
if (sessionBean.isAuthenticated()) {
sessionBean.logoutAction();
}
}
}
}
ApplicationBean
@ApplicationScoped
@Named("applicationBean")
public class ApplicationBean implements Serializable {
public ApplicationBean() {
}
}
错误日志
09:35:58,189 ERROR [stderr] (default task-35) java.lang.NullPointerException
09:35:58,189 ERROR [stderr] (default task-35) at by.softclub.abank.admin.ui.faces.UniqueSessionPhaseListener.beforePhase(UniqueSessionPhaseListener.java:26)
09:35:58,189 ERROR [stderr] (default task-35) at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:228)
09:35:58,190 ERROR [stderr] (default task-35) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:99)
09:35:58,190 ERROR [stderr] (default task-35) at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
09:35:58,190 ERROR [stderr] (default task-35) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
09:35:58,190 ERROR [stderr] (default task-35) at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
09:35:58,190 ERROR [stderr] (default task-35) at com.github.zhanhb.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:55)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
09:35:58,190 ERROR [stderr] (default task-35) at by.softclub.abank.admin.ui.faces.UrlFilter.doFilter(UrlFilter.java:118)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
09:35:58,190 ERROR [stderr] (default task-35) at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
09:35:58,190 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
09:35:58,193 ERROR [stderr] (default task-35) at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199)
09:35:58,193 ERROR [stderr] (default task-35) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774)
09:35:58,193 ERROR [stderr] (default task-35) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
09:35:58,193 ERROR [stderr] (default task-35) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
09:35:58,193 ERROR [stderr] (default task-35) at java.lang.Thread.run(Thread.java:745)
09:35:58,193 SEVERE [org.primefaces.application.exceptionhandler.PrimeExceptionHandler] (default task-35) null: java.lang.NullPointerException
at by.softclub.abank.admin.ui.faces.UniqueSessionPhaseListener.beforePhase(UniqueSessionPhaseListener.java:26) [classes:]
at com.sun.faces.lifecycle.Phase.handleBeforePhase(Phase.java:228) [jsf-impl-2.2.12-jbossorg-2.jar:2.2.12-jbossorg-2]
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:99) [jsf-impl-2.2.12-jbossorg-2.jar:2.2.12-jbossorg-2]
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219) [jsf-impl-2.2.12-jbossorg-2.jar:2.2.12-jbossorg-2]
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:659) [jboss-jsf-api_2.2_spec-2.2.12.jar:2.2.12]
at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:86) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98) [primefaces-5.0.jar:5.0]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at com.github.zhanhb.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:55) [character-encoding-filter-2.1.6.4.jar:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at by.softclub.abank.admin.ui.faces.UrlFilter.doFilter(UrlFilter.java:118) [classes:]
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:72) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:282) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:261) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:80) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:172) [undertow-servlet-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:199) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:774) [undertow-core-1.2.9.Final.jar:1.2.9.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_102]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_102]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_102]
我试试
How to @Inject in a PhaseListener
但也是空指针
public static ApplicationBean getApplicationBean() {
FacesContext context = FacesContext.getCurrentInstance();
return context.getApplication()
.evaluateExpressionGet(context, "#{applicationBean}", ApplicationBean.class);
}
Whee ApplicationBean注释@ManagedBean一切正常
更改PhaseListener
import javax.el.ELContext;
import javax.enterprise.context.ApplicationScoped;
import javax.faces.application.Application;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.naming.InitialContext;
import javax.naming.NamingException;
@ApplicationScoped
public class UniqueSessionPhaseListener implements PhaseListener {
public PhaseId getPhaseId() {
return PhaseId.RENDER_RESPONSE;
}
public void afterPhase(PhaseEvent phaseEvent) {
}
public void beforePhase(PhaseEvent phaseEvent) {
FacesContext context = FacesContext.getCurrentInstance();
ELContext elContext = context.getELContext();
Object object = context.getApplication().evaluateExpressionGet(context, "#{applicationBean}", Object.class);
Application application = context.getApplication();
ApplicationBean applicationBean0 = application.evaluateExpressionGet(context, "#{applicationBean}", ApplicationBean.class);
ApplicationBean applicationBean00 = (ApplicationBean) application.getExpressionFactory().createValueExpression(elContext, "#{applicationBean}", ApplicationBean.class).getValue(elContext);
ApplicationBean applicationBean000 = (ApplicationBean) elContext.getELResolver().getValue(elContext, null, "applicationBean");
ApplicationBean applicationBean = (ApplicationBean) FacesContext.getCurrentInstance().getApplication().getELResolver().getValue(elContext, null, "#{applicationBean}");
ApplicationBean applicationBean1 = context.getApplication().evaluateExpressionGet(context, "#{applicationBean}", ApplicationBean.class);
InitialContext initialContext = null;
try {
initialContext = new InitialContext();
ApplicationBean beanManager = (ApplicationBean) initialContext.lookup("java:comp/applicationBean");
} catch (NamingException e) {
e.printStackTrace();
}
ApplicationBean bean = FacesUtils.getApplicationBean();
if (bean.sessionIntercepted(FacesUtils.getSession())) {
SessionBean sessionBean = (SessionBean) FacesUtils.getSession().getAttribute("sessionBean");
if (sessionBean.isAuthenticated()) {
sessionBean.logoutAction();
}
}
}
}
已于2016年9月21日更新
添加问题：
1）我怎样才能找到正确的路径上的bean.xml（faces-config在WEB-INF中），所以我觉得不太可能，但仍然有想法，用beans.xml出了点问题。 2）服务器设置，他的库（I WildFly 9）不能影响CDI应用程序吗？