javax.naming.NameNotFoundException：名称未在此上下文中绑定。 无法find
我在tomcat 8.0.41上部署了一个webapp。 该webapp应该连接到一个MySQL服务器5.7。
值得一提
tomcat和mysql服务器都是作为docker-container运行的。 这就是为什么msyql-url是：“jdbc：mysql：// db：3306 / ProjectDB”。 jdcb-jar通过docker-compose添加到tomcat。 但我认为这不应该是错误的根源。
ConnectionBuilder.java
package Persistence; import java.sql.Connection; import java.sql.SQLException; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.sql.DataSource; public class ConnectionBuilder { public Connection conn; public ConnectionBuilder()throws NamingException, SQLException { Context intitialContext = new InitialContext(); Context environmentContext = new InitialContext(); environmentContext = (Context) intitialContext.lookup("java:comp/env"); DataSource dataSource = (DataSource) environmentContext.lookup("jdbc/projectCon"); this.conn = dataSource.getConnection(); } } server.xml中
<?xml version='1.0' encoding='utf-8'?> <Server port="8005" shutdown="SHUTDOWN"> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on"/> <Listener className="org.apache.catalina.core.JasperListener" /> <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/> <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener"/> <GlobalNamingResources> <Recource name="jdbc/projectCon" global="jdbc/projectCon" type="javax.sql.DataSource" auth="Container" factory="org.apache.tomcat.jdbc.pool.DataSourceFactory" maxActive="15" maxIdle="3" maxWait="-1" removeAbandonedTimeout="300" defaultAutoCommit="true" username="admin" password="password" driverClassName="com.mysql.jdbc.Driver" url="jdbc:mysql://db:3306/ProjectDB" /> </GlobalNamingResources> <Service name="Catalina"> <Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" /> <Engine name="Catalina" defaultHost="localhost"> <Realm className="org.apache.catalina.realm.LockOutRealm"> <Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/> </Realm> <Host name="localhost" appBase="webapps" unpackWARs="true" autoDeploy="true"> <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log." suffix=".txt" pattern="%h %l %u %t "%r" %s %b" /> </Host> </Engine> </Service> </Server>
的context.xml
<?xml version="1.0" encoding="UTF-8"?> <Context path="/Project"> <ResourceLink description="DB Connection" name="jdbc/projectCon" global="jdbc/projectCon" type="javax.sql.DataSource" /> </Context>
web.xml中
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.1" 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/web-app_3_1.xsd"> <recource-ref> <res-ref-name>jdbc/projectCon</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth> </recource-ref> <context-param> <param-name>javax.faces.PROJECT_STAGE</param-name> <param-value>Development</param-value> </context-param> <servlet> <servlet-name>Faces Servlet</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>Faces Servlet</servlet-name> <url-pattern>*.xhtml</url-pattern> </servlet-mapping> <session-config> <session-timeout> 30 </session-timeout> </session-config> <welcome-file-list> <welcome-file>login.xhtml</welcome-file> </welcome-file-list>
堆栈跟踪：
javax.faces.el.EvaluationException: javax.naming.NameNotFoundException: Name [jdbc/projectCon] is not bound in this Context. Unable to find [jdbc]. at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101) at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) at javax.faces.component.UICommand.broadcast(UICommand.java:315) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790) at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1282) at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:658) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:509) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1104) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684) at org.apache.tomcat.util.net.AprEndpoint$SocketWithOptionsProcessor.run(AprEndpoint.java:2445) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745)
这也发生在部署：
2017年2月26日21：49：15.201 INFO [localhost-startStop-1] com.sun.faces.config.ConfigureListener.contextInitialized初始化Mojarra 2.2.14（20161114-2152无法获取svn信息）上下文'/ project'