通过java客户端访问hdfs提示以下错误
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epositorycommons-collectionscommons-collections3.2.2commons-collections-3.2.2.jar;C:UsersAdministrator.m2 epositoryorgapachehbasehbase-hadoop-compat1.3.1hbase-hadoop-compat-1.3.1.jar;C:UsersAdministrator.m2 epositoryorgapachehbasehbase-hadoop2-compat1.3.1hbase-hadoop2-compat-1.3.1.jar;C:UsersAdministrator.m2 epositoryorgapachecommonscommons-math2.2commons-math-2.2.jar;C:UsersAdministrator.m2 epositoryorgmortbayjettyjetty-sslengine6.1.26jetty-sslengine-6.1.26.jar;C:UsersAdministrator.m2 epositoryorgmortbayjettyjsp-2.16.1.14jsp-2.1-6.1.14.jar;C:UsersAdministrator.m2 epositoryorgmortbayjettyjsp-api-2.16.1.14jsp-api-2.1-6.1.14.jar;C:UsersAdministrator.m2 epositoryorgmortbayjettyservlet-api-2.56.1.14servlet-api-2.5-6.1.14.jar;C:UsersAdministrator.m2 epositoryorgcodehausjacksonjackson-jaxrs1.9.13jackson-jaxrs-1.9.13.jar;C:UsersAdministrator.m2 epository omcatjasper-compiler5.5.23jasper-compiler-5.5.23.jar;C:UsersAdministrator.m2 epository omcatjasper-runtime5.5.23jasper-runtime-5.5.23.jar;C:UsersAdministrator.m2 epositorycommons-elcommons-el1.0commons-el-1.0.jar;C:UsersAdministrator.m2 epositoryorgjamonjamon-runtime2.4.1jamon-runtime-2.4.1.jar;C:UsersAdministrator.m2 epositorycomlmaxdisruptor3.3.0disruptor-3.3.0.jar;C:UsersAdministrator.m2 epositoryorgapachehbasehbase-common1.3.1hbase-common-1.3.1.jar;C:UsersAdministrator.m2 epositorycomgithubstephencfindbugsfindbugs-annotations1.3.9-1findbugs-annotations-1.3.9-1.jar;C:Program FilesJetBrainsIntelliJ IDEA 2018.2.5libidea_rt.jar" hdfs.examples.CopyFromLocalFile Connected to the target VM, address: '127.0.0.1:51383', transport: 'socket' SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFactory). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. Exception in thread "main" java.lang.NoSuchMethodError: org.apache.hadoop.security.authentication.util.KerberosUtil.hasKerberosTicket(Ljavax/security/auth/Subject;)Z at org.apache.hadoop.security.UserGroupInformation.<init>(UserGroupInformation.java:653) at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:844) at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:803) at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:676) at org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:2978) at org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:2968) at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2830) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:389) at hdfs.common.FileSystemUtil.getFileSystem(FileSystemUtil.java:22) at hdfs.examples.CopyFromLocalFile.main(CopyFromLocalFile.java:14) Disconnected from the target VM, address: '127.0.0.1:51383', transport: 'socket' Process finished with exit code 1
原因是在pom文件中缺少hadoop-common的依赖，增加之后错误消失。