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perf: 提前创建数据库连接池

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Spring Boot 新版本默认会在第一次请求数据库时创建连接池
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xiongxiaoyang 2025-03-19 07:50:50 +08:00
parent 4b00ea68a9
commit acf9c76757
1 changed files with 10 additions and 1 deletions
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11
novel-admin/src/main/java/com/java2nb/AdminApplication.java
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@ -1,5 +1,6 @@
package com.java2nb;
import com.zaxxer.hikari.HikariDataSource;
import lombok.extern.slf4j.Slf4j;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.CommandLineRunner;
@ -13,6 +14,7 @@ import org.springframework.transaction.annotation.EnableTransactionManagement;
import javax.sql.DataSource;
import java.net.InetAddress;
import java.sql.Connection;
@EnableTransactionManagement
@ -34,7 +36,14 @@ public class AdminApplication {
return args -> {
// 提前创建连接池，而不是在第一次访问数据库时才创建，提高第一次登录速度
log.info("创建连接池...");
dataSource.getConnection();
try (Connection connection = dataSource.getConnection()) {
HikariDataSource hikariDataSource = (HikariDataSource) dataSource;
log.info("最小空闲连接数：{}", hikariDataSource.getMinimumIdle());
log.info("最大连接数：{}", hikariDataSource.getMaximumPoolSize());
log.info("创建连接池完成.");
log.info("数据库：{}", connection.getMetaData().getDatabaseProductName());
log.info("数据库版本：{}", connection.getMetaData().getDatabaseProductVersion());
}
log.info("项目启动啦，访问路径：{}",
"http://" + InetAddress.getLocalHost().getHostAddress() + ":" + ctx.getEnvironment()
.getProperty("server.port"));