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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