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。
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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
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配置hbase-site.xml
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cd /usr/local/hbase/conf
vi hbase-site.xml
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<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>
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配置hbase-env.sh
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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
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运行测试
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cd /usr/local/hbase/bin
./start-hbase.sh
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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:
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<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>
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版本是1.3.2,注意和你自己的一致,可以登录hbase shell时查看。
(
插播反爬信息)博主csdn地址:https://wzlodq.blog.csdn.net/
log4j.properties配置
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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
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hbase-site.xml配置
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<?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>
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hbasecrud.java
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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;
/**
* 建立连接
*/
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();
}
}
/**
* 关闭连接
*/
public static void close(){
try {
if (admin!= null )
admin.close();
} catch (ioexception e){
e.printstacktrace();
}
}
/**
* 创建表
* @param mytablename 表名
* @param colfamily 列族数组
* @throws ioexception
*/
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
}
}
/**
* 添加数据
* @param tablename 表名
* @param rowkey 行键
* @param colfamily 列族
* @param col 列限定符
* @param val 数据
* @throws ioexception
*/
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();
}
/**
* 获取数据
* @param tablename 表名
* @param rowkey 行键
* @param colfamily 列族
* @param col 列限定符
* @throws ioexception
*/
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();
}
}
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client.java
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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~" );
}
}
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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。
原创不易,请勿转载(
本不富裕的访问量雪上加霜)
博主首页:https://wzlodq.blog.csdn.net/
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原文链接:https://blog.csdn.net/qq_45034708/article/details/115678645