一、插件安裝
git clone https://github.com/fangyuzhong2016/HadoopIntellijPlugin.git
注意:從Github上下載的源碼需要經(jīng)過編譯才能使用
- 編譯
①、目前 Intellij plugin for hadoop 的源碼使用maven 進(jìn)行編譯和打包,因此在編譯之前請確保安裝JDK1.8和maven3 以上版本。
②、Intellij plugin for hadoop插件基于 IntelliJ IDEA Ultimate 2017.2 版本進(jìn)行開發(fā)的,因此需要安裝IntelliJ IDEAUltimate 2017 以上版本
③、進(jìn)入源碼目錄 ../HadoopIntellijPlugin/ 修改 pom.xml 文件,主要修改hadoop的版本和IntelliJ IDEA 安裝的路徑,設(shè)置如下:
# 修改properties 版本內(nèi)容與idea安裝路徑
<!--設(shè)置hadoop版本-->
<hadoop.2.version>3.0.0-alpha2</hadoop.2.version>
<!--設(shè)置Intellij-IDEA的安裝路徑-->
<IntellijIde.dir>C:\Program Files\JetBrains\IntelliJ IDEA 2018.2</IntellijIde.dir>
④、執(zhí)行mvn 命令:
先執(zhí)行
C:\Users\Administrator>d:
D:\>cd HadoopIntellijPlugin
D:\HadoopIntellijPlugin>mvn clean
mvn clean
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 40.727 s
[INFO] Finished at: 2019-11-21T13:54:47+08:00
[INFO] ------------------------------------------------------------------------
然后執(zhí)行
D:\HadoopIntellijPlugin>mvn assembly:assembly
[INFO] Reading assembly descriptor: assembly.xml
[INFO] artifact net.minidev:json-smart: checking for updates from aliyun-repos
[INFO] artifact net.minidev:json-smart: checking for updates from central
[INFO] artifact net.minidev:json-smart: checking for updates from dynamodb-local-oregon
[INFO] artifact net.minidev:json-smart: checking for updates from apache.snapshots.https
[INFO] artifact net.minidev:json-smart: checking for updates from repository.jboss.org
[INFO] HadoopIntellijPlugin/lib/HadoopIntellijPlugin-1.0.jar already added, skipping
[INFO] Building zip: D:\HadoopIntellijPlugin\target\HadoopIntellijPlugin-1.0.zip
[INFO] HadoopIntellijPlugin/lib/HadoopIntellijPlugin-1.0.jar already added, skipping
[INFO]
[INFO] <<< maven-assembly-plugin:2.2-beta-5:assembly (default-cli) < package @ HadoopIntellijPlugin <<<
[INFO]
[INFO]
[INFO] --- maven-assembly-plugin:2.2-beta-5:assembly (default-cli) @ HadoopIntellijPlugin ---
[INFO] Reading assembly descriptor: assembly.xml
[INFO] HadoopIntellijPlugin/lib/HadoopIntellijPlugin-1.0.jar already added, skipping
[INFO] Building zip: D:\HadoopIntellijPlugin\target\HadoopIntellijPlugin-1.0.zip
[INFO] HadoopIntellijPlugin/lib/HadoopIntellijPlugin-1.0.jar already added, skipping
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 01:00 min
[INFO] Finished at: 2019-11-21T16:28:22+08:00
[INFO] ------------------------------------------------------------------------
編譯完成后 在.../target/HadoopIntellijPlugin-1.0.zip 即為該插件的安裝包,然后安裝到 IntelliJ 中即可。
D:\HadoopIntellijPlugin\target

-
安裝HadoopIntellijPlugin
安裝plugin
安裝plugin -
修改GUI
再次打開IDEA。由于用的是idea的框架。所以idea的ui要改成idea的動態(tài)生成插入,在這里設(shè)置:在Setting里面找到GUI Designer
修改GUI
GUI文件系統(tǒng) -
HDFS設(shè)置
設(shè)置
設(shè)置
參數(shù)填寫:
只需要填寫HDFS地址即可
注意:測試功能似乎不完善,會提示連接失敗,但是直接點確定就可以正常使用。 每次更改文件,可能都需要以用戶登錄權(quán)限,比較麻煩。這個可以配置,在hdfs-site.xml來配置
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
常見問題:
-
測試提示失敗,但可以正常使用。
連接失敗
在源碼的:
com.fangyuzhong.intelliJ.hadoop.fsconnection.ConnectionManager類中。
二、Intellij plugin for hadoop 插件配置和源碼的相關(guān)說明
1、插件的源碼說明

①、core 包,為插件項目的核心包,公共組件庫,包括了 通用UI界面、多線程操作、Hadoop連接設(shè)置基類、Hadoop文件系統(tǒng)通用操作類、插件項目設(shè)置通用類和其他工具類
②、fsconnection 包,Hadoop文件系統(tǒng)連接實現(xiàn)類和連接相關(guān)配置實現(xiàn)類
③、fsobject 包,文件系統(tǒng)對象類的實現(xiàn)(對于HDFS來講就是 目錄樹和文件樹節(jié)點的組織方式的實現(xiàn))
④、fsbrowser包,插件的主界面實現(xiàn),包括讀取HDFS文件系統(tǒng)相關(guān)數(shù)據(jù)進(jìn)行展示、文件系統(tǒng)對象的創(chuàng)建、下載、刪除、上傳和其他一些操作
⑤、globalization包,插件多語言支持類
⑥、options 包,插件設(shè)置類
⑦、mainmenu包, 插件主菜單操作類
2、插件配置相關(guān)說明
插件配置在.../resources/目錄下,包括HadoopNavigator_en_US.properties、HadoopNavigator_zh_CN.properties 、plugin.xml
HadoopNavigator_en_US.properties 文件為插件界面的英文語言配置
HadoopNavigator_zh_CN.properties 文件為插件界面的中文語言配置
目前插件界面的語言只支持 簡體中文和英文,其他的語言,需要自行制作語言包。系統(tǒng)初始默認(rèn)的語言為操作系統(tǒng)默認(rèn)的語言。
三、插件使用
-
創(chuàng)建目錄(測試不好使)
創(chuàng)建目錄 -
下載文件
下載文件 -
上傳文件
上傳文件
四、Hadoop編程示例
-
創(chuàng)建項目
創(chuàng)建項目
選擇Maven
設(shè)定包名
指定Maven
指定項目保存路徑 添加Maven依賴
<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.xtsz</groupId>
<artifactId>hadoop-exercise</artifactId>
<version>1.0.0</version>
<name>hadoop-exercise</name>
<url>hadoop練習(xí)</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<version.hadoop>2.9.2</version.hadoop>
</properties>
<dependencies>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-common</artifactId>
<version>${version.hadoop}</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-hdfs</artifactId>
<version>${version.hadoop}</version>
</dependency>
<dependency>
<groupId>org.apache.hadoop</groupId>
<artifactId>hadoop-client</artifactId>
<version>${version.hadoop}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<!-- 此處指定main方法入口的class -->
<mainClass>com.xtsz.WordCount</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>assembly</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
- 代碼編寫
import java.io.IOException;
import java.util.StringTokenizer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
public class WordCount {
/**
* Mapper
*/
public static class TokenizerMapper
extends Mapper<Object, Text, Text, IntWritable> {
private final static IntWritable one = new IntWritable(1);
private Text word = new Text();
public void map(Object key, Text value, Context context
) throws IOException, InterruptedException {
StringTokenizer itr = new StringTokenizer(value.toString());
while (itr.hasMoreTokens()) {
word.set(itr.nextToken());
context.write(word, one);
}
}
}
/**
* Reducer
*/
public static class IntSumReducer
extends Reducer<Text, IntWritable, Text, IntWritable> {
private IntWritable result = new IntWritable();
public void reduce(Text key, Iterable<IntWritable> values,
Context context
) throws IOException, InterruptedException {
int sum = 0;
for (IntWritable val : values) {
sum += val.get();
}
result.set(sum);
context.write(key, result);
}
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
Job job = Job.getInstance(conf, "word count");
job.setJarByClass(WordCount.class);
job.setMapperClass(TokenizerMapper.class);
job.setCombinerClass(IntSumReducer.class);
job.setReducerClass(IntSumReducer.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(IntWritable.class);
FileInputFormat.addInputPath(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
}
- 打包可執(zhí)行jar
使用插件:
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<!-- 此處指定main方法入口的class -->
<mainClass>com.xtsz.WordCount</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>assembly</goal>
</goals>
</execution>
</executions>
</plugin>


-
上傳運行
上傳jar文件
root@master:~# hadoop jar hadoop-exercise-1.0.0.jar hdfs://master:9000/wordcount hdfs://master:9000/output



hello 7
jerry 1
jone 1
kitty 1
marquis 1
tom 2
world 1
五、非Maven方式導(dǎo)包
1. 新建Java項目







2. 導(dǎo)入jar包
可以在hadoop的 share/hadoop 目錄下找到,找到module點擊右側(cè)的小加號JARS or directories…



common:

comom/lib:

hdfs:

mapreduce:

yarn:

3. 代碼編寫
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import java.io.IOException;
import java.util.StringTokenizer;
public class WordCountTest {
/**
* Mapper
*/
public static class TokenizerMapper
extends Mapper<Object, Text, Text, IntWritable> {
private final static IntWritable one = new IntWritable(1);
private Text word = new Text();
public void map(Object key, Text value, Context context
) throws IOException, InterruptedException {
StringTokenizer itr = new StringTokenizer(value.toString());
while (itr.hasMoreTokens()) {
word.set(itr.nextToken());
context.write(word, one);
}
}
}
/**
* Reducer
*/
public static class IntSumReducer
extends Reducer<Text, IntWritable, Text, IntWritable> {
private IntWritable result = new IntWritable();
public void reduce(Text key, Iterable<IntWritable> values,
Context context
) throws IOException, InterruptedException {
int sum = 0;
for (IntWritable val : values) {
sum += val.get();
}
result.set(sum);
context.write(key, result);
}
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
Job job = Job.getInstance(conf, "word count");
job.setJarByClass(WordCountTest.class);
job.setMapperClass(TokenizerMapper.class);
job.setCombinerClass(IntSumReducer.class);
job.setReducerClass(IntSumReducer.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(IntWritable.class);
FileInputFormat.setInputPaths(job, new Path("hdfs://192.168.71.130:9000/wordcount"));
FileOutputFormat.setOutputPath(job, new Path("hdfs://192.168.71.130:9000/result"));
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
}
4. 運行測試



六、常見問題
- Unable to import maven project: See logs for details
更換Maven版本為:3.5.4 - 清空日志
root@master:/usr/local/hadoop-2.9.2/logs# echo "">hadoop-root-namenode-master.log
- 打包插件
<plugin>
<artifactId>maven-dependency-plugin</artifactId>
<configuration>
<!--依賴傳遞-->
<excludeTransitive>false</excludeTransitive>
<!-- 表示復(fù)制的jar文件添加版本信息 -->
<stripVersion>true</stripVersion>
<!--用來指定拷出后Libraries的存放地-->
<outputDirectory>./lib</outputDirectory>
</configuration>
</plugin>
- 可執(zhí)行Jar插件
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<appendAssemblyId>false</appendAssemblyId>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
<archive>
<manifest>
<!-- 此處指定main方法入口的class -->
<mainClass>com.xtsz.WordCount</mainClass>
</manifest>
</archive>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>assembly</goal>
</goals>
</execution>
</executions>
</plugin>
- java.lang.InterruptedException
當(dāng)關(guān)閉DFSStripedOutputStream的時候,如果在向data/parity塊刷回數(shù)據(jù)失敗的時候,streamer線程不會被關(guān)閉。同時在DFSOutputStream#closeImpl中也存在這個問題。
DFSOutputStream#closeImpl總是會強制性地關(guān)閉線程,會引起InterruptedException。 - 缺少tools.jar
<dependency>
<groupId>jdk.tools</groupId>
<artifactId>jdk.tools</artifactId>
<version>1.8</version>
<scope>system</scope>
<systemPath>${JAVA_HOME}/lib/tools.jar</systemPath>
</dependency>
















