前面已经完成ClickHouse的搭建，创建账号，创建数据库，保存数据库等，接下来就是在SpringBoot项目中集成ClickHouse。
一，引入依赖
XML
<!-- SpringBoot集成ClickHouse -->
<dependency>
<groupId>com.baomidou</groupId>
<artifactId>mybatis-plus-spring-boot3-starter</artifactId>
<version>3.5.5</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</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>二，添加数据源配置
1，在applicaiton.yml中添加数据源配置
spring: datasource: type: com.alibaba.druid.pool.DruidDataSource click: driverClassName: ru.yandex.clickhouse.ClickHouseDriver url: jdbc:clickhouse://x.x.x.x:8123/account username: clickhouse password: clickhouse initialSize: 10 maxActive: 100 minIdle: 10 maxWait: 6000
2，在applicaiton.yml中添加mybatis-plus配置
mybatis-plus: mapper-locations: classpath*:mapper/*.xml configuration: log-impl: org.apache.ibatis.logging.stdout.StdOutImpl map-underscore-to-camel-case: true cache-enabled: true lazy-loading-enabled: true multiple-result-sets-enabled: true use-generated-keys: true default-statement-timeout: 60 default-fetch-size: 100 type-aliases-package: com.xxx.springboot.repository.entity
三，添加自定义数据源
1，创建配置类
java
package com.xxx.springboot.config;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
/**
* @author wangrong03
* @date 2024/11/5 下午3:59
*/
@Data
@Component
@ConfigurationProperties(prefix = "spring.datasource.click")
public class ClickHouseCommonConfig {
private String driverClassName ;
private String url ;
private Integer initialSize ;
private Integer maxActive ;
private Integer minIdle ;
private Integer maxWait ;
private String username;
private String password;
}2，新增数据源
java
package com.xxx.springboot.config;
import com.alibaba.druid.pool.DruidDataSource;
import jakarta.annotation.Resource;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import javax.sql.DataSource;
@Configuration
@EnableConfigurationProperties(ClickHouseCommonConfig.class)
@MapperScan(basePackages = {"com.xxx.springboot.repository.mapper"},
sqlSessionFactoryRef = "SqlSessionFactory")
public class DruidConfig {
@Resource
private ClickHouseCommonConfig clickHouseCommonConfig;
/**
* 重写 DataSource
* @return
*/
@Bean
public DataSource dataSource() {
DruidDataSource datasource = new DruidDataSource();
datasource.setUrl(clickHouseCommonConfig.getUrl());
datasource.setDriverClassName(clickHouseCommonConfig.getDriverClassName());
datasource.setInitialSize(clickHouseCommonConfig.getInitialSize());
datasource.setMinIdle(clickHouseCommonConfig.getMinIdle());
datasource.setMaxActive(clickHouseCommonConfig.getMaxActive());
datasource.setMaxWait(clickHouseCommonConfig.getMaxWait());
datasource.setUsername(clickHouseCommonConfig.getUsername());
datasource.setPassword(clickHouseCommonConfig.getPassword());
return datasource;
}
@Bean("SqlSessionFactory")
public SqlSessionFactory sqlSessionFactoryBean(DataSource dataSource) throws Exception {
SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
sqlSessionFactoryBean.setDataSource(dataSource);
org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration();
configuration.setMapUnderscoreToCamelCase(true);
configuration.setDefaultFetchSize(100);
configuration.setDefaultStatementTimeout(60);
sqlSessionFactoryBean.setMapperLocations(
new PathMatchingResourcePatternResolver().getResources("classpath*:mapper/*.xml"));
sqlSessionFactoryBean.setConfiguration(configuration);
return sqlSessionFactoryBean.getObject();
}
}3，在SpringBootApplicaiton的注解下加上MapperScan注解
四，实现新增和删除
1，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.xxx.springboot.repository.mapper.StudentMapper"> <resultMap id="BaseResultMap" type="com.xxx.springboot.repository.entity.Student"> <id column="StudentID" property="studentId" jdbcType="INTEGER" /> <result column="StudentName" property="studentName" jdbcType="VARCHAR" /> <result column="Address" property="address" jdbcType="VARCHAR" /> <result column="Grade" property="grade" jdbcType="INTEGER" /> <result column="Age" property="age" jdbcType="INTEGER" /> <result column="Gender" property="gender" jdbcType="INTEGER" /> <result column="StartTime" property="startTime" jdbcType="VARCHAR" /> </resultMap> <insert id="saveData" parameterType="com.xxx.springboot.repository.entity.Student" > INSERT INTO student (StudentID,StudentName,Address,Grade,Age,Gender,StartTime) VALUES (#{studentId,jdbcType=INTEGER},#{studentName,jdbcType=VARCHAR},#{address,jdbcType=VARCHAR}, #{grade,jdbcType=INTEGER},#{age,jdbcType=INTEGER},#{gender,jdbcType=INTEGER},#{startTime,jdbcType=VARCHAR}) </insert> <select id="queryAll" resultMap="BaseResultMap"> SELECT StudentID,StudentName,Address,Grade,Age,Gender,StartTime FROM student </select> </mapper>
2, mapper
后面就是在service里调用这个save和queryAll方法就可以，不再赘述了。