保持数据库连接活跃

src/main/java/cn/quantgroup/customer/config/data/DatabaseConnectionKeeper.java

 package cn.quantgroup.customer.config.data;
 
-import cn.hutool.log.Log;
-import javax.annotation.Resource;
 import javax.persistence.EntityManager;
 import javax.persistence.Query;
-import javax.sql.DataSource;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 
@@ -16,29 +12,22 @@ import org.springframework.stereotype.Component;
 @Component
 public class DatabaseConnectionKeeper {
 
-//    private final JdbcTemplate jdbcTemplate;
     private EntityManager entityManager;
-//    @Autowired
-//    public DatabaseConnectionKeeper(@Qualifier("secondaryDataSource") DataSource secondaryDataSource) {
-//        this.jdbcTemplate = new JdbcTemplate(secondaryDataSource);
-//    }
+
     @Autowired
     public DatabaseConnectionKeeper(@Qualifier("entityManagerSecondary") EntityManager entityManager) {
         this.entityManager = entityManager;
     }
-    // 每小时执行一次查询操作，保持数据库连接活跃
-    @Scheduled(fixedDelay = 60000) // 每小时执行一次
+    // 每一分钟执行一次查询操作，保持数据库连接活跃
+    @Scheduled(fixedDelay = 60000)
     public void keepDatabaseConnectionAlive() {
-        log.info("数据库定时任务执行");
         try {
             // 执行一个简单的查询操作
             Query countQuery = entityManager.createNativeQuery("SELECT 1");
             Object count = countQuery.getSingleResult();
-            log.info("查询结果:{}",count);
-//            jdbcTemplate.execute("SELECT 1");
         } catch (Exception ex) {
             // 处理异常
-            log.error("数据库定时任务执行异常",ex);
+            log.error("保持数据库连接活跃定时任务执行异常",ex);
         }
     }
 }
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