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  • springboot 整合jsp过程中的一些问题

    出现一个奇葩的空指针异常

    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)

    刚开始看到这个错,一脸闷逼,后面找了个帖子后https://stackoverflow.com/questions/38802437/upgrading-spring-boot-from-1-3-7-to-1-4-0-causing-nullpointerexception-in-authen

    看到觉得可能是包的冲突问题,因为本地都没问题

    后面用AuthConfigFactoryImpl这个类,去查找,springboot里的tomcat有这么一个类,javax-api里也有,所以我就尝试把javaee-apI的包排除了,就可以了

              <exclusion>
                        <groupId>javax</groupId>
                        <artifactId>javaee-api</artifactId>
                    </exclusion>
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  • 原文地址:https://www.cnblogs.com/xuerong/p/7152738.html
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