HDFS客户端操作 -学习笔记三

4.创建一个maven工程HDFS ClientDemo

file->new->project->Maven->Maven Project

5.导入相应坐标+日志添加

<dependencies>

      <dependency>

          <groupId>junit</groupId>

          <artifactId>junit</artifactId>

          <version>RELEASE</version>

      </dependency>

      <dependency>

          <groupId>org.apache.logging.log4j</groupId>

          <artifactId>log4j-core</artifactId>

          <version>2.8.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-common</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-client</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-hdfs</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>jdk.tools</groupId>

          <artifactId>jdk.tools</artifactId>

          <version>1.8</version>

          <scope>system</scope>

          <systemPath>${JAVA_HOME}/lib/tools.jar</systemPath>

      </dependency>

</dependencies> <dependencies>

      <dependency>

          <groupId>junit</groupId>

          <artifactId>junit</artifactId>

          <version>RELEASE</version>

      </dependency>

      <dependency>

          <groupId>org.apache.logging.log4j</groupId>

          <artifactId>log4j-core</artifactId>

          <version>2.8.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-common</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-client</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-hdfs</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>jdk.tools</groupId>

          <artifactId>jdk.tools</artifactId>

          <version>1.8</version>

          <scope>system</scope>

          <systemPath>${JAVA_HOME}/lib/tools.jar</systemPath>

      </dependency> <dependencies>

      <dependency>

          <groupId>junit</groupId>

          <artifactId>junit</artifactId>

          <version>RELEASE</version>

      </dependency>

      <dependency>

          <groupId>org.apache.logging.log4j</groupId>

          <artifactId>log4j-core</artifactId>

          <version>2.8.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-common</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-client</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>org.apache.hadoop</groupId>

          <artifactId>hadoop-hdfs</artifactId>

          <version>2.7.2</version>

      </dependency>

      <dependency>

          <groupId>jdk.tools</groupId>

          <artifactId>jdk.tools</artifactId>

          <version>1.8</version>

          <scope>system</scope>

          <systemPath>${JAVA_HOME}/lib/tools.jar</systemPath>

      </dependency>

</dependencies>

</dependencies>

log4j.rootLogger=INFO,stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] -%m%n

log4j.appender.logfilefile=org.apache.log4j.FileAppender

log4j.appender.logefile.File=target/spring.log

log4j.appender.logfile.layout=org.apache.log4j.PatternLayout

log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] -%m%n