大数据系列（hadoop） 集群环境搭建 idea 开发设置

搭建idea开发环境，实现idea远程开发、调试、打包。

资源环境

• idea 2017.2
• Hadoop 集群环境

 搭建步骤：http://www.cnblogs.com/YellowstonePark/p/7750213.html

新建项目

 

输入GroupId、ArtifactId

输入project Name 、Project Location

 

 修改pom.xml 添加依赖

<?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.hadoopbook</groupId>
    <artifactId>hadoop-demo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <packaging>jar</packaging>
    <url>http://maven.apache.org</url>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-common</artifactId>
            <version>2.7.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-hdfs</artifactId>
            <version>2.7.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.hadoop</groupId>
            <artifactId>hadoop-client</artifactId>
            <version>2.7.4</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
    </build>

</project>

　　将hadoop配置文件夹下的log4j.properties 和 core-site.xml文件复制到项目resources目录下

 

 

<configuration>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://192.168.1.50:9000</value>
    </property>
</configuration>

　　

新建包com.hsd.excise  和 Excise java类文件

package com.hsd.excise;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;

import java.net.URI;

public class Excise {

    public static void main(String[] args)throws Exception{
        String uri = "hdfs://192.168.1.50:9000/";
        Configuration conf = new Configuration();

        FileSystem fs = FileSystem.get(URI.create(uri),conf);

        //列出hdfs上 /input 目录下的所有文件
        FileStatus[] statuses = fs.listStatus(new Path("/input"));
        for (FileStatus status:statuses){
            System.out.println(status);
        }


    }
}

　　

选中 项目名右键 ->Open Module Setting