Spring Boot 配置Hadoop

忘是亡心i 2022-05-15 08:27 895阅读 0赞

# **Spring Boot 配置Hadoop** #

### **核心** ###

*  FsShell自动注入

### **项目工程** ###

*  Maven工程

### **Maven的setting.xml文件配置** ###

。。。 <mirror> <id>nexus</id> <mirrorOf>*,!cloudera</mirrorOf> <url>http://repo1.maven.org/maven2/</url> </mirror> 。。。

### **pom配置** ###

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.peng</groupId> <artifactId>hdfstest</artifactId> <version>1.0-SNAPSHOT</version> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build>  <repositories> <repository> <id>repo</id> <url>http://repo1.maven.org/maven2/</url> </repository> <repository> <id>cloudera</id> <url>https://repository.cloudera.com/content/repositories/releases/</url> </repository> </repositories>  <dependencies> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-client</artifactId> <version>2.6.0-cdh5.7.0</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.10</version> <scope>test</scope> </dependency> <dependency> <groupId>org.mortbay.jetty</groupId> <artifactId>jetty</artifactId> <version>6.1.26</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.25</version> <scope>test</scope> </dependency>  <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-hadoop-boot</artifactId> <version>2.5.0.RELEASE</version> </dependency>  </dependencies> </project>

### **配置文件【resources下】** ###

*  application.properties【配置文件，映射键值对】
    
     
    
        spring.hadoop.fsUri=hdfs://centos00:8020

### **测试程序** ###

*  SpringBootHadoopTest.java
    
     
    
        package com.peng; import org.apache.hadoop.fs.FileStatus; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.CommandLineRunner; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.data.hadoop.fs.FsShell; @SpringBootApplication public class SpringBootHadoopTest implements CommandLineRunner { @Autowired FsShell fsShell; @Override public void run(String... strings) throws Exception { System.out.println("=========run start============"); for (FileStatus fileStatus : fsShell.lsr("/data")) { System.out.println(">" + fileStatus.getPath()); } System.out.println("===========run end==========="); } public static void main(String[] args) { System.out.println("===========main start==========="); SpringApplication.run(SpringBootHadoopTest.class, args); System.out.println("===========main end==========="); } }

### **执行结果** ###

===========main start=========== log4j:WARN No appenders could be found for logger (org.springframework.core.env.StandardEnvironment). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v1.4.7.RELEASE) =========run start============ >hdfs://centos00:8020/data >hdfs://centos00:8020/data/10000_access.log >hdfs://centos00:8020/data/8_access.log >hdfs://centos00:8020/data/hello.txt ===========run end=========== ===========main end=========== Process finished with exit code 0