配置自定义数据源

package com.huawei.metrics.config;

import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

import javax.sql.DataSource;

@Configuration
@MapperScan(basePackages = "com.huawei.metrics.click", sqlSessionFactoryRef = "clickSqlSessionFactory")
public class ClickHouseDataSourceConfig {


    @Bean("clickDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.click")
    public DataSource getclickDataSource() {
        return DataSourceBuilder.create().build();
    }


    @Bean("clickSqlSessionFactory")
    public SqlSessionFactory clickSqlSessionFactory(@Qualifier("clickDataSource") DataSource dataSource)
        throws Exception {
        SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean();
        sqlSessionFactoryBean.setDataSource(dataSource);
        sqlSessionFactoryBean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath*:config/click/*.xml"));
        return sqlSessionFactoryBean.getObject();
    }


    @Bean("clickSqlSessiontemplate")
    public SqlSessionTemplate clickSqlSessiontemplate(@Qualifier("clickSqlSessionFactory") SqlSessionFactory sqlSessionFactory) {
        return new SqlSessionTemplate(sqlSessionFactory);
    }


    @Bean("clickTransactionManager")
    public DataSourceTransactionManager clickTransactionManager(@Qualifier("clickDataSource") DataSource dataSource) {
        return new DataSourceTransactionManager(dataSource);
    }

}