clickhouse 安装和java通过jdbc链接

 检查

需要确保是否x86_64处理器构架、Linux并且支持SSE 4.2指令集

grep -q sse4_2 /proc/cpuinfo && echo "SSE 4.2 supported" || echo "SSE 4.2 not supported"

官网给的是Ubuntu/Debian的安装方式：如下

sudo apt-get install dirmngr
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E0C56BD4

echo "deb http://repo.yandex.ru/clickhouse/deb/stable/ main/" | sudo tee /etc/apt/sources.list.d/clickhouse.list
sudo apt-get update

sudo apt-get install -y clickhouse-server clickhouse-client

sudo service clickhouse-server start
clickhouse-client

centos的安装

参考：https://github.com/Altinity/clickhouse-rpm-install

#step 1
#先下载安装脚本
curl -s https://packagecloud.io/install/repositories/altinity/clickhouse/script.rpm.sh | sudo bash
#可以指定系统版本 
curl -s https://packagecloud.io/install/repositories/altinity/clickhouse/script.rpm.sh | sudo os=centos dist=7 bash
#这里注意，我当时指定错了系统版本，导致找不到libstdc++的依赖包，汗颜！！

#step 2 
#查看库里clickhouse相关的包
sudo yum list 'clickhouse*'

#step 3
#安装核心的服务和客户端
sudo yum install -y clickhouse-server clickhouse-client

#step 4
#启动服务
service clickhouse-server start

#step 5
#启动客户端
clickhouse-client

通过java JDBC链接Clickhouse

maven 依赖

<dependency>
    <groupId>ru.yandex.clickhouse</groupId>
    <artifactId>clickhouse-jdbc</artifactId>
    <version>0.1.54</version>
</dependency>

 java代码

JDBC Driver Class: ru.yandex.clickhouse.ClickHouseDriver

和mysql不同，不需要先Class.forName();加载drive；

应为我没有配置账号密码，所以直接给个url就可以创建链接，代码如下：

    public static Connection getClickHouseConnection() throws SQLException {
        String url="jdbc:clickhouse://ip:8123/dataBaseName";
        ClickHouseDataSource dataSou=new ClickHouseDataSource(url);
        return dataSou.getConnection();
    }

附：Clickhouse官方文档 https://clickhouse.yandex/docs/zh/