开放端口
安全组没开放端口是原罪!!!导致好多BUG费时费力。Hbase悄悄咪咪的用了好多端口,比如被我抓到的42239,直接搜索报错药不对症。
Hbase安装
下载压缩包
可以去官网下载http://hbase.apache.org/downloads.html
也可以去镜像下载历史版本http://archive.apache.org/dist/hbase/
以1.3.2版本为例:
直接下载或者下载到本地再上传都行,看你哪个快。
wget http://archive.apache.org/dist/hbase/1.3.2/hbase-1.3.2-bin.tar.gz
tar -zxvf hbase-1.3.2-bin.tar.gz #解压
mv hbase-1.3.2-bin /urs/local/hbase
配置hbase-site.xml
cd /usr/local/hbase/conf
vi hbase-site.xml
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>hbase.rootdir</name>
<value>/hbase-data</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>master:2181</value>
</property>
配置hbase-env.sh
cd /usr/local/hbase/conf
echo $JAVA_HOME #若没有安装jdk可百度(偷懒)
vi hbase-env.sh #添加要一致
export JAVA_HOME=/usr/local/java
运行测试
cd /usr/local/hbase/bin
./start-hbase.sh
ip:16010访问
域名配置
服务器 vi /etc/hosts
私网ip master
本地 C:\Windows\System32\drivers\etc\hosts
公网ip master
IDEA源码
目录结构:
创建一个maven项目并在pom.xml添加依赖:
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-server</artifactId>
<version>1.3.2</version>
</dependency>
<dependency>
<groupId>org.apache.hbase</groupId>
<artifactId>hbase-client</artifactId>
<version>1.3.2</version>
</dependency>
版本是1.3.2,注意和你自己的一致,可以登录hbase shell时查看。
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log4j.properties配置
log4j.rootLogger=debug, stdout, R
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=firestorm.log
log4j.appender.R.MaxFileSize=100KB
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%p %t %c - %m%n
log4j.logger.com.codefutures=DEBUG
hbase-site.xml配置
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl" rel="external nofollow" ?>
<configuration>
<property>
<name>hbase.cluster.distributed</name>
<value>true</value>
</property>
<property>
<name>hbase.rootdir</name>
<value>/hbase-data</value>
</property>
<property>
<name>hbase.zookeeper.quorum</name>
<value>master:2181</value>
</property>
</configuration>
HBaseCRUD.java
package ex3;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import java.io.IOException;
public class HbaseCRUD {
private static Configuration configuration;
private static Connection connection;
private static Admin admin;
public static void init(){
configuration=HBaseConfiguration.create();
configuration.set("hbase.zookeeper.quorum","121.36.240.205"); // 换成你自己的IP
configuration.set("hbase.zookeeper.property.clientPort","2181");
try{
connection=ConnectionFactory.createConnection(configuration);
admin=connection.getAdmin();
}catch (IOException e){
e.printStackTrace();
}
}
public static void close(){
try{
if(admin!=null)
admin.close();
}catch (IOException e){
e.printStackTrace();
}
}
public static void createTable(String myTableName,String[]colFamily)throws IOException{
TableName tablename = TableName.valueOf(myTableName);
if(admin.tableExists(tablename)){
System.out.println("表名已存在!");
}
else{
HTableDescriptor hTableDescriptor = new HTableDescriptor(tablename);
for(String str:colFamily){ //增加一列
HColumnDescriptor hColumnDescriptor = new HColumnDescriptor(str);
hTableDescriptor.addFamily(hColumnDescriptor);
}
admin.createTable(hTableDescriptor); //建表
}
}
public static void insertData(String tablename,String rowKey,String colFamily,String col,String val)throws IOException{
Table table = connection.getTable(TableName.valueOf(tablename));//获取表名
Put put = new Put(rowKey.getBytes());
put.addColumn(colFamily.getBytes(),col.getBytes(),val.getBytes());
table.put(put);
table.close();
}
public static void getData(String tablename,String rowKey,String colFamily,String col)throws IOException{
Table table = connection.getTable(TableName.valueOf(tablename));
Get get = new Get(rowKey.getBytes());
get.addColumn(colFamily.getBytes(),col.getBytes());
Result result = table.get(get);
String val = new String(result.getValue(colFamily.getBytes(),col==null?null:col.getBytes()));
System.out.println("值为:"+val);
table.close();
}
}
Client.java
package ex3;
import org.apache.log4j.BasicConfigurator;
import java.io.IOException;
public class Client {
public static void main(String[] args) throws IOException {
HbaseCRUD.init();
//建表
HbaseCRUD.createTable("student",new String[]{"score"});
//插入数据
HbaseCRUD.insertData("student","lisa","score","Java","85");
HbaseCRUD.insertData("student","lisa","score","C/C++","80");
HbaseCRUD.insertData("student","lisa","score","MySQL","82");
HbaseCRUD.insertData("student","jerry","score","Java","65");
//查询数据
HbaseCRUD.getData("student","lisa","score","Java");
HbaseCRUD.getData("student","lisa","score","MySQL");
HbaseCRUD.getData("student","jerry","score","Java");
HbaseCRUD.close();
System.out.println("记得一键三连~");
}
}
点击运行后需要点耐心等待,灰色INFO、DEBUG信息都可不用管,报错的话会是红色字体(评论区交流),有tomcat内味了。
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