springboot 整合jsp過程中的一些問題

標籤：lan   null   proc   point   using   base   nio   epo   ide   

出現一個奇葩的null 指標異常

java.lang.NullPointerException: null    at org.apache.catalina.authenticator.AuthenticatorBase.getJaspicProvider(AuthenticatorBase.java:1192)    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:465)    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798)    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434)    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)    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)

剛開始看到這個錯，一臉悶逼，後面找了個文章後https://stackoverflow.com/questions/38802437/upgrading-spring-boot-from-1-3-7-to-1-4-0-causing-nullpointerexception-in-authen

看到覺得可能是包的衝突問題，因為本地都沒問題

後面用AuthConfigFactoryImpl這個類，去尋找，springboot裡的tomcat有這麼一個類，javax-api裡也有，所以我就嘗試把javaee-apI的包排除了，就可以了

  　　　　　　　　<exclusion>                    <groupId>javax</groupId>                    <artifactId>javaee-api</artifactId>                </exclusion>

 

springboot 整合jsp過程中的一些問題