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Java連接Hbase的項(xiàng)目實(shí)踐

更新時(shí)間：2024年01月11日 10:30:06 作者：楓葉梨花

HBase是基于Hadoop的高可靠、高性能、面向列的NoSQL數(shù)據(jù)庫(kù),它提供了對(duì)海量數(shù)據(jù)的存儲(chǔ)和實(shí)時(shí)讀寫的能力,本文主要介紹了Java連接Hbase的項(xiàng)目實(shí)踐,具有一定的參考價(jià)值,感興趣的可以了解一下

我在網(wǎng)上試了很多代碼，但是大部分都不能實(shí)現(xiàn)，Java連接Hbase，一直報(bào)一個(gè)錯(cuò)

java.util.concurrent.ExecutionException: org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = NoNode for /hbase/hbaseid

一直也不清楚為什么。后面各種嘗試，最后嘗試出來(lái)了，能正常連接hbase，但是也不知道為啥能出來(lái)，所以該代碼可能只能解決我自己的問(wèn)題，其他人的問(wèn)題請(qǐng)謹(jǐn)慎參考，不保證準(zhǔn)確與否，因?yàn)槲乙膊恢罏槭裁?？？？?/p>

引入Jar，本公司使用的Hbase是2.0.2.1.7.x，所以我使用的Jar也是2.0.2版本，根據(jù)實(shí)際情況引入，然后還用了log4j2的日志

<?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.hbase</groupId>
    <artifactId>hbase-operation</artifactId>
    <version>0.0.1</version>

    <properties>
        <maven.compiler.source>8</maven.compiler.source>
        <maven.compiler.target>8</maven.compiler.target>
    </properties>

    <dependencies>

        <dependency>
            <groupId>org.apache.hbase</groupId>
            <artifactId>hbase-server</artifactId>
            <version>2.0.2</version>
            <exclusions>
                <exclusion>
                    <artifactId>servlet-api</artifactId>
                    <groupId>javax.servlet</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>slf4j-log4j12</artifactId>
                    <groupId>org.slf4j</groupId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.apache.hbase</groupId>
            <artifactId>hbase-client</artifactId>
            <version>2.0.2</version>
            <exclusions>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-api</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>log4j</groupId>
                    <artifactId>log4j</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.22</version>
        </dependency>

        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.32</version>
        </dependency>

        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.17.1</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.logging.log4j</groupId>
                    <artifactId>log4j-api</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-api</artifactId>
            <version>2.17.1</version>
        </dependency>

        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-slf4j-impl</artifactId>
            <version>2.17.0</version>
            <exclusions>
                <exclusion>
                    <artifactId>log4j-api</artifactId>
                    <groupId>org.apache.logging.log4j</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>log4j-core</artifactId>
                    <groupId>org.apache.logging.log4j</groupId>
                </exclusion>
                <exclusion>
                    <artifactId>slf4j-api</artifactId>
                    <groupId>org.slf4j</groupId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-assembly-plugin</artifactId>
                <version>3.0.0</version>
                <configuration>
                    <archive>
                        <manifest>
                            <mainClass>com.hbase.HbaseSearch</mainClass>
                        </manifest>
                    </archive>
                    <descriptorRefs>
                        <descriptorRef>jar-with-dependencies</descriptorRef>
                    </descriptorRefs>
                </configuration>
                <executions>
                    <execution>
                        <id>make-assembly</id>
                        <phase>package</phase>
                        <goals>
                            <goal>single</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

日志配置

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="DEBUG">
    <Appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
        </Console>
    </Appenders>
    <Loggers>
        <Root level="info">
            <AppenderRef ref="Console"/>
        </Root>
    </Loggers>
</Configuration>

實(shí)際代碼

package com.hbase;

import lombok.extern.slf4j.Slf4j;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.util.Bytes;
import java.util.List;

/**
 * @author panlf
 * @date 2023/11/1
 */
@Slf4j
public class HbaseSearch {
    public static void main(String[] args) throws Exception {
        log.info("start111");
        // 創(chuàng)建HBase配置對(duì)象
        Configuration config = HBaseConfiguration.create();
        config.set("hbase.zookeeper.quorum", "fdp-master,fdp-slave1,fdp-slave2,fdp-slave3"); // 設(shè)置ZooKeeper地址
  	config.set("hbase.rootdir","hdfs://fdp-master:8020/apps/hbase/data");
        config.set("zookeeper.znode.parent","/hbase-unsecure");
        // 創(chuàng)建HBase連接
        Connection connection = ConnectionFactory.createConnection(config);
        Admin admin = connection.getAdmin();

        // 獲取所有表名
        List<TableDescriptor> tableDescriptors = admin.listTableDescriptors();
        for (TableDescriptor tableDescriptor : tableDescriptors) {
            System.out.println("表名： " + Bytes.toString(tableDescriptor.getTableName().getName()));
        }
        System.out.println("over");

        // 關(guān)閉資源
        admin.close();
        connection.close();
    }
}

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