如何在Spring Boot中使用HikariCP,将两个数据源与Flyway结合使用
2022-09-01 13:19:00
我想在我的Spring引导应用程序中使用HikariCP作为JDBC连接池。我有两个数据源(MySQL数据库作为主数据库,通过Hibernate访问这些数据,另外还有一个Oracle数据库,用于通过JDBCTemplate读取其他一些数据)。
我将MySQL数据源设置为主bean:
@Bean
@Primary
@ConfigurationProperties("spring.datasource")
public DataSourceProperties mySQLDataSourceProperties() {
return new DataSourceProperties();
}
@Bean
@Primary
@ConfigurationProperties("spring.datasource")
public DataSource mySQLDataSource() {
return mySQLDataSourceProperties().initializeDataSourceBuilder().build();
}
@Bean
@ConfigurationProperties("oracle.datasource")
public DataSourceProperties oracleDataSourceProperties() {
return new DataSourceProperties();
}
@Bean(name = "oracleDatabase")
@ConfigurationProperties("oracle.datasource")
public DataSource oracleDataSource() {
return oracleDataSourceProperties().initializeDataSourceBuilder().build();
}
@Bean
public JdbcTemplate oracleJdbcTemplate(@Qualifier("oracleDatabase") DataSource oracleDb) {
return new JdbcTemplate(oracleDb);
}
我将以下配置放在我的应用程序.属性中:
spring.datasource.type=com.zaxxer.hikari.HikariDataSource
spring.datasource.hikari.minimum-idle=7
spring.datasource.hikari.pool-name=Test-1
spring.datasource.hikari.data-source-properties.prepStmtCacheSize=250
spring.datasource.hikari.data-source-properties.prepStmtCacheSqlLimit=2048
spring.datasource.hikari.data-source-properties.cachePrepStmts=true
spring.datasource.hikari.data-source-properties.useServerPrepStmts=true
不幸的是,这些HikariCP配置没有被读取:
HikariConfig - dataSourceJNDI..................none
HikariConfig - dataSourceProperties............{password=<masked>}
HikariConfig - driverClassName................."com.mysql.jdbc.Driver"
HikariConfig - healthCheckProperties...........{}
HikariConfig - healthCheckRegistry.............none
HikariConfig - idleTimeout.....................600000
HikariConfig - initializationFailFast..........true
HikariConfig - initializationFailTimeout.......1
HikariConfig - isolateInternalQueries..........false
HikariConfig - jdbc4ConnectionTest.............false
HikariConfig - jdbcUrl........................."jdbc:mysql://localhost:3306/testDB"
HikariConfig - leakDetectionThreshold..........0
HikariConfig - maxLifetime.....................1800000
HikariConfig - maximumPoolSize.................10
HikariConfig - metricRegistry..................none
HikariConfig - metricsTrackerFactory...........none
HikariConfig - minimumIdle.....................10
HikariConfig - password........................<masked>
HikariConfig - poolName........................"HikariPool-1"
创建HikariCP豆并停用数据源自动配置并删除“spring.datasource”:
@EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class})
@SpringBootApplication
@ComponentScan
public class SpringApplication {
@Bean
@Primary
@ConfigurationProperties(prefix = "spring.datasource.hikari")
public HikariConfig hikariConfig() {
return new HikariConfig();
}
@Bean
public DataSource dataSource() {
return new HikariDataSource(hikariConfig());
}
解决了我的问题:
HikariConfig - dataSourceJNDI..................none
HikariConfig - dataSourceProperties............{password=<masked>, prepStmtCacheSqlLimit=2048, cachePrepStmts=true, useServerPrepStmts=true, prepStmtCacheSize=250}
HikariConfig - driverClassName................."com.mysql.jdbc.Driver"
HikariConfig - healthCheckProperties...........{}
HikariConfig - healthCheckRegistry.............none
HikariConfig - idleTimeout.....................600000
HikariConfig - initializationFailFast..........true
HikariConfig - initializationFailTimeout.......1
HikariConfig - isolateInternalQueries..........false
HikariConfig - jdbc4ConnectionTest.............false
HikariConfig - jdbcUrl........................."jdbc:mysql://localhost:3306/testDB?autoReconnect=true"
HikariConfig - leakDetectionThreshold..........0
HikariConfig - maxLifetime.....................1800000
HikariConfig - poolName........................"Test-1"
但是,Flyway显示了一些以前没有显示的奇怪警告,我必须在运行Spring应用程序之前手动创建数据库Schema,即:创建架构不再起作用。
[WARN ] JdbcTemplate - DB: Can't create database 'test'; database exists (SQL State: HY000 - Error Code: 1007)
[WARN ] JdbcTemplate - DB: Unknown table 'testSchema.tenant' (SQL State: 42S02 - Error Code: 1051)
[WARN ] JdbcTemplate - DB: Unknown table 'testSchema.user' (SQL State: 42S02 - Error Code: 1051)
我的 Flyway SQL 脚本是普通的 DDL 脚本:
CREATE SCHEMA IF NOT EXISTS `testSchema` DEFAULT CHARACTER SET utf8 ;
DROP TABLE IF EXISTS `testSchema`.`tenant`;
CREATE TABLE `testSchema`.`tenant` (
`id` int NOT NULL AUTO_INCREMENT,
我认为禁用自动数据源配置不是最佳解决方案,因为Flyway停止创建架构并显示警告。有没有其他方法可以解决这个问题?