springboot+mybatis配置clickhouse实现插入查询功能

说明

clickhouse 是一款用于大数据实时分析的列式数据库管理系统，在大数据量查询时有着非常优秀的性能，
但是也有缺点，就是不支持事务，不支持真正的删除 / 更新，所以笔者只演示插入和查询。

1.添加maven依赖

<dependency>
  <groupid>org.springframework.boot</groupid>
  <artifactid>spring-boot-starter-web</artifactid>
 </dependency>
 <dependency>
  <groupid>org.springframework.boot</groupid>
  <artifactid>spring-boot-starter-aop</artifactid>
 </dependency>
 <dependency>
  <groupid>org.springframework.boot</groupid>
  <artifactid>spring-boot-starter-test</artifactid>
 </dependency>
 <dependency>
  <groupid>org.mybatis.spring.boot</groupid>
  <artifactid>mybatis-spring-boot-starter</artifactid>
  <version>1.3.2</version>
 </dependency>
 <dependency>
  <groupid>com.alibaba</groupid>
  <artifactid>druid-spring-boot-starter</artifactid>
  <version>1.1.13</version>
 </dependency>
 <dependency>
  <groupid>commons-lang</groupid>
  <artifactid>commons-lang</artifactid>
  <version>2.6</version>
 </dependency>
 <!-- clickhouse数据库 -->
 <dependency>
  <groupid>ru.yandex.clickhouse</groupid>
  <artifactid>clickhouse-jdbc</artifactid>
  <version>0.1.53</version>
 </dependency>
 <dependency>
  <groupid>org.projectlombok</groupid>
  <artifactid>lombok</artifactid>
  <optional>true</optional>
 </dependency>

2、配属数据源

spring:
 datasource:
 type: com.alibaba.druid.pool.druiddatasource
clickhouse:
 driverclassname: ru.yandex.clickhouse.clickhousedriver
 url: jdbc:clickhouse://106.55.55.249:8123/default
 password: ck的密码
 initialsize: 10
 maxactive: 100
 minidle: 10
 maxwait: 6000
mybatis:
 mapper-locations: classpath:mapper/*mapper.xml
 type-aliases-package: com.wyu.tt16clickhouse.entity
server:
 port: 8090

3、参数配置

import lombok.data;
import org.springframework.beans.factory.annotation.value;
import org.springframework.stereotype.component;

@data
@component
public class chparam {
 private string driverclassname;
 private string url;
 private string password;
 private integer initialsize;
 private integer maxactive;
 private integer minidle;
 private integer maxwait;

 @value("${clickhouse.driverclassname}")
 public void setdriverclassname(string driverclassname) {
 this.driverclassname = driverclassname;
 }

 @value("${clickhouse.url}")
 public void seturl(string url) {
 this.url = url;
 }

 @value("${clickhouse.password}")
 public void setpassword(string password) {
 this.password = password;
 }

 @value("${clickhouse.initialsize}")
 public void setinitialsize(integer initialsize) {
 this.initialsize = initialsize;
 }

 @value("${clickhouse.maxactive}")
 public void setmaxactive(integer maxactive) {
 this.maxactive = maxactive;
 }

 @value("${clickhouse.minidle}")
 public void setminidle(integer minidle) {
 this.minidle = minidle;
 }

 @value("${clickhouse.maxwait}")
 public void setmaxwait(integer maxwait) {
 this.maxwait = maxwait;
 }
}

4、druid连接池配置

import com.alibaba.druid.pool.druiddatasource;
import org.springframework.beans.factory.annotation.autowired;
import org.springframework.context.annotation.bean;
import org.springframework.context.annotation.configuration;

import javax.sql.datasource;

@configuration
public class druidconfig {

 @autowired
 private chparam chparam;

 @bean
 public datasource datasource() {
 druiddatasource datasource = new druiddatasource();
 datasource.seturl(chparam.geturl());
 datasource.setdriverclassname(chparam.getdriverclassname());
 datasource.setinitialsize(chparam.getinitialsize());
 datasource.setminidle(chparam.getminidle());
 datasource.setmaxactive(chparam.getmaxactive());
 datasource.setmaxwait(chparam.getmaxwait());
 datasource.setpassword(chparam.getpassword());
 return datasource;
 }
}

5、mapper.xml

<?xml version="1.0" encoding="utf-8"?>
<!doctype mapper public "-//mybatis.org//dtd mapper 3.0//en" 
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.wyu.tt16clickhouse.usermapper">

 <select id="queryuser" resulttype="com.wyu.tt16clickhouse.entity.user">
 select userid, appid, version, regtime from `default`.`user`
 </select>

 <insert id="insertuser" parametertype="com.wyu.tt16clickhouse.entity.user">
  insert into `default`.`user` (`userid`, `appid`, `version`, `regtime`)
  values (#{userid}, #{appid}, #{version}, #{regtime})
 </insert>
</mapper>

6、mapper接口

@mapper
public interface usermapper {

 list<user> queryuser();

 integer insertuser(user user);
}

7.controller接口

@slf4j
@restcontroller
public class usercontroller {

 @autowired
 private usermapper usermapper;

 @requestmapping("/queryuser")
 public object query(){
 list userlist = usermapper.queryuser();
 log.info(userlist.tostring());
 return userlist.tostring();
 }

 @requestmapping("/insertuser")
 public object insertuser(){
 user user = new user();
 user.setappid("ss");
 user.setregtime(new date());
 user.setuserid(777744);
 user.setversion("3.2");
 integer flag = usermapper.insertuser(user);
 return flag;
 }
}

8.创建一个clickhouse表，然后插入几条数据测试一下

create table user
(
 userid int32,
 appid string,
 version string,
 regtime date
)
 engine = mergetree partition by toyyyymm(regtime) order by userid settings index_granularity = 8192;
 
insert into default.user (userid, appid, version, regtime) values (123457, 'rr', '3.6', '2020-01-07');
insert into default.user (userid, appid, version, regtime) values (43234, 'hh', '2.5', '2020-06-06');
insert into default.user (userid, appid, version, regtime) values (1234, 'tt', '2.4', '2020-07-24');
insert into default.user (userid, appid, version, regtime) values (12345, 'rr', '2.5', '2020-07-29');
insert into default.user (userid, appid, version, regtime) values (123456, 'tt', '2.1', '2020-07-09');
insert into default.user (userid, appid, version, regtime) values (234561, 'gg', '3.0', '2020-07-31'); 

9.测试

参考文章：springboot2 整合 clickhouse数据库案例解析

总结

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