maven项目出错， 发生 java.lang.ClassNotFoundExc?400报错
maven项目出错， 发生 java.lang.ClassNotFoundException:? 400 报错
java.lang.ClassNotFoundException: maven项目出错， 发生 java.lang.ClassNotFoundException:
HTTP Status 500 - Error instantiating servlet class com.yanfei.web.RandomKeysServlet -------------------------------------------------------------------------------- type Exception report message Error instantiating servlet class com.yanfei.web.RandomKeysServlet description The server encountered an internal error that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error instantiating servlet class com.yanfei.web.RandomKeysServlet org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) root cause java.lang.ClassNotFoundException: com.yanfei.web.RandomKeysServlet org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1722) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1573) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318) java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) java.lang.Thread.run(Unknown Source) note The full stack trace of the root cause is available in the Apache Tomcat/7.0.63 logs. -------------------------------------------------------------------------------- Apache Tomcat/7.0.63
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https://developer.aliyun.com/profile/5yerqm5bn5yqg?spm=a2c6h.12873639.0.0.6eae304abcjaIB
更新一下项目依赖 update project
######Failure to transfer org.slf4j:slf4j-api:jar:1.6.1 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.slf4j:slf4j-api:jar:1.6.1 from/to central (https://repo.maven.apache.org/maven2): connect timed outorg.eclipse.aether.transfer.ArtifactTransferException: Failure to transfer org.slf4j:slf4j-api:jar:1.6.1 from https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.slf4j:slf4j-api:jar:1.6.1 from/to central (https://repo.maven.apache.org/maven2): connect timed outat org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:238)at org.eclipse.aet######我猜这个应该是你编译出问题了，如果是eclipse看看problems试图里的错误信息，解决后再project -> clean下
######把依赖的子项目install一下######
子项目 clean install
父项目 clean update
2020-06-04 16:50:34赞同 展开评论
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