定时任务查询数据库

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.sql.DataSource;
+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;
+
+@Component
+public class DatabaseConnectionKeeper {
+
+    private final JdbcTemplate jdbcTemplate;
+
+    @Autowired
+    public DatabaseConnectionKeeper(@Qualifier("secondaryDataSource") DataSource secondaryDataSource) {
+        this.jdbcTemplate = new JdbcTemplate(secondaryDataSource);
+    }
+
+    // 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
+    public void keepDatabaseConnectionAlive() {
+        try {
+            jdbcTemplate.execute("SELECT 1"); // 执行一个简单的查询操作
+        } catch (Exception e) {
+            // 处理异常
+        }
+    }
+}
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