search
HomeDatabaseMysql Tutorial解决mysql的默认字符编码和中文乱码问题

文章详细的介绍了解决mysql的默认字符编码和中文乱码问题 ,有需要了解的朋友可参考一下。

MySQL的默认编码是Latin1,不支持中文,那么如何修改MySQL的默认编码呢,下面以UTF-8为例来说明

启动mysql后,以root登录mysql
mysql > show variables like 'character%';  #执行编码显示
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | latin1 |
| character_set_connection | latin1 |
| character_set_database | latin1 |
| character_set_filesystem | binary |
| character_set_results | latin1 |
| character_set_server | latin1 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
这是安装后,默认的字符编码(图为Solaris下的截图,windows的类似)

需要注意的是,要修改的地方非常多,相应的修改方法也很多。下面是一种最简单最彻底的方法:

一、Windows
1、中止MySQL服务
2、在MySQL的安装目录下找到my.ini,如果没有就把my-medium.ini复制为一个my.ini即可
3、打开my.ini以后,在[client]和[mysqld]下面均加上default-character-set=utf8,保存并关闭
4、启动MySQL服务

二、Linux
1、中止MySQL服务(bin/mysqladmin -u root shutdown -p)
2、在/etc/下找到my.cnf,如果没有就把MySQL的安装目录下的support-files目录下的my-large.cnf复制到/etc/下并改名为my.cnf即可
3、打开my.cnf以后,修改以下,保存并关闭

         找到客户端配置[client] 在下面添加
        default-character-set=utf8 默认字符集为utf8
        在找到[mysqld] 添加
        default-character-set=utf8 默认字符集为utf8
        init_connect='SET NAMES utf8' (设定连接mysql时使用utf8编码,以让mysql数据库为utf8运行)

4、启动MySQL服务(bin/mysqld_safe &),重新查看编码显示

    mysql > show variables like 'character%'; #执行编码显示
+--------------------------+----------------------------+
| Variable_name | Value |
+--------------------------+----------------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | utf8 |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | utf8 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
修改后的编码显示(图为Solaris下的截图,windows的类似)

非常简单,这样的修改一劳永逸,今后MySQL一切相关的默认编码均为UTF-8了,创建新表格的时候无需再次设置

Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
MySQL BLOB : are there any limits?MySQL BLOB : are there any limits?May 08, 2025 am 12:22 AM

MySQLBLOBshavelimits:TINYBLOB(255bytes),BLOB(65,535bytes),MEDIUMBLOB(16,777,215bytes),andLONGBLOB(4,294,967,295bytes).TouseBLOBseffectively:1)ConsiderperformanceimpactsandstorelargeBLOBsexternally;2)Managebackupsandreplicationcarefully;3)Usepathsinst

MySQL : What are the best tools to automate users creation?MySQL : What are the best tools to automate users creation?May 08, 2025 am 12:22 AM

The best tools and technologies for automating the creation of users in MySQL include: 1. MySQLWorkbench, suitable for small to medium-sized environments, easy to use but high resource consumption; 2. Ansible, suitable for multi-server environments, simple but steep learning curve; 3. Custom Python scripts, flexible but need to ensure script security; 4. Puppet and Chef, suitable for large-scale environments, complex but scalable. Scale, learning curve and integration needs should be considered when choosing.

MySQL: Can I search inside a blob?MySQL: Can I search inside a blob?May 08, 2025 am 12:20 AM

Yes,youcansearchinsideaBLOBinMySQLusingspecifictechniques.1)ConverttheBLOBtoaUTF-8stringwithCONVERTfunctionandsearchusingLIKE.2)ForcompressedBLOBs,useUNCOMPRESSbeforeconversion.3)Considerperformanceimpactsanddataencoding.4)Forcomplexdata,externalproc

MySQL String Data Types: A Comprehensive GuideMySQL String Data Types: A Comprehensive GuideMay 08, 2025 am 12:14 AM

MySQLoffersvariousstringdatatypes:1)CHARforfixed-lengthstrings,idealforconsistentlengthdatalikecountrycodes;2)VARCHARforvariable-lengthstrings,suitableforfieldslikenames;3)TEXTtypesforlargertext,goodforblogpostsbutcanimpactperformance;4)BINARYandVARB

Mastering MySQL BLOBs: A Step-by-Step TutorialMastering MySQL BLOBs: A Step-by-Step TutorialMay 08, 2025 am 12:01 AM

TomasterMySQLBLOBs,followthesesteps:1)ChoosetheappropriateBLOBtype(TINYBLOB,BLOB,MEDIUMBLOB,LONGBLOB)basedondatasize.2)InsertdatausingLOAD_FILEforefficiency.3)Storefilereferencesinsteadoffilestoimproveperformance.4)UseDUMPFILEtoretrieveandsaveBLOBsco

BLOB Data Type in MySQL: A Detailed Overview for DevelopersBLOB Data Type in MySQL: A Detailed Overview for DevelopersMay 07, 2025 pm 05:41 PM

BlobdatatypesinmysqlareusedforvoringLargebinarydatalikeImagesoraudio.1) Useblobtypes (tinyblobtolongblob) Basedondatasizeneeds. 2) Storeblobsin Perplate Petooptimize Performance.3) ConsidersxterNal Storage Forel Blob Romana DatabasesizerIndimprovebackupupe

How to Add Users to MySQL from the Command LineHow to Add Users to MySQL from the Command LineMay 07, 2025 pm 05:01 PM

ToadduserstoMySQLfromthecommandline,loginasroot,thenuseCREATEUSER'username'@'host'IDENTIFIEDBY'password';tocreateanewuser.GrantpermissionswithGRANTALLPRIVILEGESONdatabase.*TO'username'@'host';anduseFLUSHPRIVILEGES;toapplychanges.Alwaysusestrongpasswo

What Are the Different String Data Types in MySQL? A Detailed OverviewWhat Are the Different String Data Types in MySQL? A Detailed OverviewMay 07, 2025 pm 03:33 PM

MySQLofferseightstringdatatypes:CHAR,VARCHAR,BINARY,VARBINARY,BLOB,TEXT,ENUM,andSET.1)CHARisfixed-length,idealforconsistentdatalikecountrycodes.2)VARCHARisvariable-length,efficientforvaryingdatalikenames.3)BINARYandVARBINARYstorebinarydata,similartoC

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Dreamweaver Mac version

Dreamweaver Mac version

Visual web development tools

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.