mysql JDBC URL格式各个参数详解

mysql JDBC URL格式如下:

jdbc:mysql://[host:port],[host:port].../[database][?参数名1][=参数值1][&参数名2][=参数值2]...

现只列举几个重要的参数,如下表所示:

参数名称 参数说明 缺省值 最低版本要求
user 数据库用户名(用于连接数据库)   所有版本
password 用户密码(用于连接数据库)   所有版本
useUnicode 是否使用Unicode字符集,如果参数characterEncoding设置为gb2312或gbk,本参数值必须设置为true false 1.1g
characterEncoding 当useUnicode设置为true时,指定字符编码。比如可设置为gb2312或gbk false 1.1g
autoReconnect 当数据库连接异常中断时,是否自动重新连接? false 1.1
autoReconnectForPools 是否使用针对数据库连接池的重连策略 false 3.1.3
failOverReadOnly 自动重连成功后,连接是否设置为只读? true 3.0.12
maxReconnects autoReconnect设置为true时,重试连接的次数 3 1.1
initialTimeout autoReconnect设置为true时,两次重连之间的时间间隔,单位:秒 2 1.1
connectTimeout 和数据库服务器建立socket连接时的超时,单位:毫秒。 0表示永不超时,适用于JDK 1.4及更高版本 0 3.0.1
socketTimeout socket操作(读写)超时,单位:毫秒。 0表示永不超时 0 3.0.1

 

对应中文环境,通常mysql连接URL可以设置为:

jdbc:mysql://localhost:3306/test?user=root&password=&useUnicode=true&characterEncoding=gbk&autoReconnect=true&failOverReadOnly=false

在使用数据库连接池的情况下,最好设置如下两个参数:

autoReconnect=true&failOverReadOnly=false

需要注意的是,在xml配置文件中,url中的&符号需要转义成“&”。比如在tomcat的server.xml中配置数据库连接池时,mysql jdbc url样例如下:

jdbc:mysql://localhost:3306/test?user=root&password=&useUnicode=true&characterEncoding=gbk

&autoReconnect=true&failOverReadOnly=false

其他参数请参见mysql jdbc官方文档: MySQL Connector/J Documentation

posted @   silentmuh  阅读(1551)  评论(0编辑  收藏  举报
编辑推荐:
· Linux系列:如何用heaptrack跟踪.NET程序的非托管内存泄露
· 开发者必知的日志记录最佳实践
· SQL Server 2025 AI相关能力初探
· Linux系列:如何用 C#调用 C方法造成内存泄露
· AI与.NET技术实操系列(二):开始使用ML.NET
阅读排行:
· 被坑几百块钱后,我竟然真的恢复了删除的微信聊天记录!
· 没有Manus邀请码?试试免邀请码的MGX或者开源的OpenManus吧
· 【自荐】一款简洁、开源的在线白板工具 Drawnix
· 园子的第一款AI主题卫衣上架——"HELLO! HOW CAN I ASSIST YOU TODAY
· Docker 太简单,K8s 太复杂?w7panel 让容器管理更轻松!
Live2D
欢迎阅读『mysql JDBC URL格式各个参数详解』
  1. 1 Walk Thru Fire Vicetone
  2. 2 爱你 王心凌
  3. 3 Inspire Capo Productions - Serenity
  4. 4 Welcome Home Radical Face
  5. 5 粉红色的回忆 李玲玉
Walk Thru Fire - Vicetone
00:00 / 00:00
An audio error has occurred, player will skip forward in 2 seconds.

作词 : Van Der Voort, Joren Johannes

作曲 : Victor Pool/Justin Gammella/Ruben Christopher den Boer/Meron Mengist/Joren van der Voort

Talk to me

Spill the secrets you've been keeping

Life cuts deep

Let me help pick up the pieces

You're not alone, I'm by your side

Don't you know, don't you know

I'll walk through fire with you

I'll walk through fire

No matter what, I'll make it right

Don't you know, don't you know

I'll walk through fire with you

I'll walk through fire

I'm not an angel, I'm not a saint

I've been a closed book full of mistakes

But when you're broken, when you're in pain

Oooh, ooh

I'll walk through fire with you

I'll walk through fire

I'll walk through fire with you

I'll walk through fire

You know I

Don't pretend to be a savior

But let me in, yeah

I promise nobody can break us

You're not alone, I'm by your side

Don't you know, don't you know

I'll walk through fire with you

I'll walk through fire

No matter what, I'll make it right

Don't you know, don't you know

I'll walk through fire with you

I'll walk through fire

I'm not an angel, I'm not a saint

I've been a closed book full of mistakes

But when you're broken, when you're in pain

Oooh, ooh

I'll walk through fire with you

I'll walk through fire with you

I'll walk through fire

I'll walk through fire with you

I'll walk through fire with you

You're not alone, I'm by your side

Don't you know, don't you know

I'll walk through fire with you

I'll walk through fire

I'm not an angel, I'm not a saint

I've been a closed book full of mistakes

But when you're broken, when you're in pain

Oooh, ooh

I'll walk through fire with you

I'll walk through fire with you

I'll walk through fire

I'll walk through fire with you

I'll walk through fire with you

点击右上角即可分享
微信分享提示