application.properties文件

server.port=8053spring.datasource.primary.jdbc-url=jdbc:mysql://xxxxxxx:3306/xxxxxxx spring.datasource.primary.username=xxxxxxx spring.datasource.primary.password=xxxxxxx spring.datasource.primary.driver-class-name= com.mysql.cj.jdbc.Driverspring.datasource.secondary.jdbc-url=jdbc:mysql://xxxxxxx:3306/xxxxxxx spring.datasource.secondary.username=xxxxxxx spring.datasource.secondary.password=xxxxxxx spring.datasource.secondary.driver-class-name= com.mysql.cj.jdbc.Driver# Hikari will use the above plus the following to setup connection pooling spring.datasource.type=com.zaxxer.hikari.HikariDataSource #最小空閑連接，默認值10，小于0或大于maximum-pool-size，都會重置為maximum-pool-size spring.datasource.hikari.minimum-idle=5 #最大連接數，小于等于0會被重置為默認值10；大于零小于1會被重置為minimum-idle的值 spring.datasource.hikari.maximum-pool-size=15 #自動提交從池中返回的連接，默認值為true spring.datasource.hikari.auto-commit=true #空閑連接超時時間，默認值600000（10分鐘），大于等于max-lifetime且max-lifetime>0，會被重置為0；不等于0且小于10秒，會被重置為10秒。 #只有空閑連接數大于最大連接數且空閑時間超過該值，才會被釋放 spring.datasource.hikari.idle-timeout=30000 #連接池名稱，默認HikariPool-1 spring.datasource.hikari.pool-name=Hikari #連接最大存活時間.不等于0且小于30秒，會被重置為默認值30分鐘.設置應該比mysql設置的超時時間短；單位ms spring.datasource.hikari.max-lifetime=55000 #連接超時時間:毫秒，小于250毫秒，會被重置為默認值30秒 spring.datasource.hikari.connection-timeout=30000 #連接測試查詢 spring.datasource.hikari.connection-test-query=SELECT 1

pom文件

<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency>

DataSourceConfig文件

import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.boot.jdbc.DataSourceBuilder; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Primary; import org.springframework.jdbc.core.JdbcTemplate;import javax.sql.DataSource;/*** @author qushen* @date 2021/6/14 15:03*/ @Configuration public class DataSourceConfig {@Bean(name = "primaryDataSource")@Qualifier("primaryDataSource")@ConfigurationProperties(prefix="spring.datasource.primary")public DataSource primaryDataSource() {return DataSourceBuilder.create().build();}@Bean(name = "secondaryDataSource")@Qualifier("secondaryDataSource")@Primary@ConfigurationProperties(prefix="spring.datasource.secondary")public DataSource secondaryDataSource() {return DataSourceBuilder.create().build();}@Bean(name = "primaryJdbcTemplate")public JdbcTemplate primaryJdbcTemplate(@Qualifier("primaryDataSource") DataSource dataSource) {return new JdbcTemplate(dataSource);}@Bean(name = "secondaryJdbcTemplate")public JdbcTemplate secondaryJdbcTemplate(@Qualifier("secondaryDataSource") DataSource dataSource) {return new JdbcTemplate(dataSource);}}

jdbcserviceImlp文件

@Service @Log4j2 public class jdbcserviceImlp implements jdbcservice {@Autowired@Qualifier("primaryJdbcTemplate")protected JdbcTemplate jdbcTemplate1;@Autowired@Qualifier("secondaryJdbcTemplate")protected JdbcTemplate jdbcTemplate2;@Overridepublic String selectMysqlVersion() {String sql="SELECT * from table limit 1 ";List<Map<String, Object>> primary=jdbcTemplate1.queryForList(sql);log.info(primary);List<Map<String, Object>> secondary=jdbcTemplate2.queryForList(sql);log.info(secondary);return "成功";} }

jdbcservice文件

public interface jdbcservice {String selectMysqlVersion(); }

jdbcController文件

import com.sws.jdbcduo.service.jdbcservice; import lombok.extern.slf4j.Slf4j; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody;import javax.annotation.Resource;/*** @author qushen* @date 2021/6/14 15:19*/ @Slf4j @Controller @RequestMapping("/api") public class jdbcController {@Resourceprivate jdbcservice jdbcService;@RequestMapping("/jdbc")@ResponseBodypublic void jdbc(){String Response=jdbcService.selectMysqlVersion();log.info(Response);}}

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