mysql乱码问题处理

乱码折腾了半天,百度了各种总结了以下三点。

1.server端编码设置

terminal或者cmd   mysql -u username -p 登录mysql 

然后查看字符集: show  variables like 'char%';

不是这结果就改

mysql乱码问题处理_第1张图片

直接修改/etc/my.cnf

mac下默认说没这个文件的。创建咯

sudo vi /etc/my.cnf

文件内容也贴出来吧,文件内容说我改完的,大概就说改了标红的几处utf-8

 

# Example MySQL config file for small systems.  
#  
# This is for a system with little memory (<= 64M) where MySQL is only used  
# from time to time and it's important that the mysqld daemon  
# doesn't use much resources.  
#  
# MySQL programs look for option files in a set of  
# locations which depend on the deployment platform.  
# You can copy this option file to one of those  
# locations. For information about these locations, see:  
# http://dev.mysql.com/doc/mysql/en/option-files.html  
#  
# In this file, you can use all long options that a program supports.  
# If you want to know which options a program supports, run the program  
# with the "--help" option.  

# The following options will be passed to all MySQL clients  
[client]  
default-character-set=utf8  
#password   = your_password  
port        = 3306 
socket      = /tmp/mysql.sock  

# Here follows entries for some specific programs  

# The MySQL server   
[mysqld]  
default-storage-engine=INNODB  
character-set-server=utf8  
collation-server=utf8_general_ci  
port        = 3306 
socket      = /tmp/mysql.sock  
skip-external-locking  
key_buffer_size = 16K  
max_allowed_packet = 1M  
table_open_cache = 4 
sort_buffer_size = 64K  
read_buffer_size = 256K  
read_rnd_buffer_size = 256K  
net_buffer_length = 2K  
thread_stack = 500K  

# Don't listen on a TCP/IP port at all. This can be a security enhancement,  
# if all processes that need to connect to mysqld run on the same host.  
# All interaction with mysqld must be made via Unix sockets or named pipes.  
# Note that using this option without enabling named pipes on Windows  
# (using the "enable-named-pipe" option) will render mysqld useless!  
#   
#skip-networking  
server-id   = 1 

# Uncomment the following if you want to log updates  
#log-bin=mysql-bin  

# binary logging format - mixed recommended  
#binlog_format=mixed  

# Causes updates to non-transactional engines using statement format to be  
# written directly to binary log. Before using this option make sure that  
# there are no dependencies between transactional and non-transactional  
# tables such as in the statement INSERT INTO t_myisam SELECT * FROM  
# t_innodb; otherwise, slaves may diverge from the master.  
#binlog_direct_non_transactional_updates=TRUE  

# Uncomment the following if you are using InnoDB tables  
#innodb_data_home_dir = /usr/local/mysql/data  
#innodb_data_file_path = ibdata1:10M:autoextend  
#innodb_log_group_home_dir = /usr/local/mysql/data  
# You can set .._buffer_pool_size up to 50 - 80 %  
# of RAM but beware of setting memory usage too high  
#innodb_buffer_pool_size = 16M  
#innodb_additional_mem_pool_size = 2M  
# Set .._log_file_size to 25 % of buffer pool size  
#innodb_log_file_size = 5M  
#innodb_log_buffer_size = 8M  
#innodb_flush_log_at_trx_commit = 1 
#innodb_lock_wait_timeout = 50 

[mysqldump]  
quick  
max_allowed_packet = 16M  

[mysql]  
default-character-set=utf8
no-auto-rehash  
# Remove the next comment character if you are not familiar with SQL  
#safe-updates  

[myisamchk]  
key_buffer_size = 8M  
sort_buffer_size = 8M  

[mysqlhotcopy]  
interactive-timeout
 

保存。重启mysql服务。系统偏好设置->mysql  重启。再次登录mysql 查看字符集,都是utf8就ok啦

 

2.工具链接设置

本人用navicat  navicat显示数据乱码,但是程序查出来的正常。程序插入的数据。从terminal 查询数据也是正常的,应用查出来的数据也是正常的,唯独navicat显示乱码,而且用navicat插入的数据。显示是正常啦。但是应用和terminal都是乱码,这么说字符没问题应该说navicat设置问题

修改connection,设置为auto。不要utf-8否则玩死你

mysql乱码问题处理_第2张图片

3.应用连接设置

这个地有人说需要设置utf8不要杠。去你地没啥区别。亲自试了。两个效果都一样。甚至不加也没见乱码。

不过还是加上的好啦。此处一直用utf-8,木有问题  

jdbc:mysql://127.0.0.1:3306/xxx?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull

码字不易。如果不小心解决你的问题就点个赞啦

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