MySQL連接斷開后如何自動重連

要實現MySQL連接斷開后的自動重連，您可以使用編程語言（如Python、Java等）來實現。這里我將為您提供一個Python示例，展示如何在連接斷開后自動重新連接到MySQL數據庫。

首先，確保已安裝mysql-connector-python庫。如果尚未安裝，請使用以下命令進行安裝：

pip install mysql-connector-python

接下來，創建一個Python腳本并添加以下代碼：

import mysql.connector
from mysql.connector import Error
import time

def create_connection():
    connection = None
    try:
        connection = mysql.connector.connect(
            host="your_host",
            user="your_user",
            password="your_password",
            database="your_database"
        )
        print("Connection to MySQL DB successful")
    except Error as e:
        print(f"The error '{e}' occurred")

    return connection

def execute_query(connection, query):
    cursor = connection.cursor()
    try:
        cursor.execute(query)
        connection.commit()
        print("Query executed successfully")
    except Error as e:
        print(f"The error '{e}' occurred")

def main():
    connection = create_connection()

    while True:
        if not connection.is_connected():
            print("Connection lost, reconnecting...")
            connection = create_connection()
        else:
            # Replace this with your own query
            query = "SELECT * FROM your_table"
            execute_query(connection, query)

        time.sleep(5)  # Wait for 5 seconds before the next iteration

if __name__ == "__main__":
    main()

請確保將your_host、your_user、your_password和your_database替換為您的MySQL數據庫的實際憑據。此外，根據需要更改your_table和查詢。

這個腳本會每隔5秒執行一次查詢。如果連接斷開，它會嘗試重新連接。如果連接成功，它將繼續執行查詢。您可以根據需要調整時間間隔和查詢。