Xr308
2021-06-02 18:52
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Mac M1 idea向navicat添加中文总出现“??”中文乱码

navicat for mysql 新建新建连接和数据库方式 添加信息均选择自动或者uhf8都会出现中文乱码。如图 添加frt和“姓名”,frt可添加成功,name一栏输入中文信息一直出现“??”符号。

java语句和sql语句均没有错误 mysql为 5.7.31版本

 

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  • CSDN专家-林老师 2021-06-02 19:10
    已采纳

    首先进入MySQL执行语句:show variables like '%character%';查看MySQL字符集。

    如果出现非UTF8字符集则进行下列操作:

    1、cd /etc

    2、sudo vim my.cnf

    3、将下列代码键入my.cnf文件中

    # Example MySQL config file for medium systems.  
      #  
      # This is for a system with little memory (32M - 64M) where MySQL plays  
      # an important part, or systems up to 128M where MySQL is used together with  
      # other programs (such as a web server)  
      #  
      # 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]
      character-set-server=utf8
      init_connect='SET NAMES utf8
      port        = 3306  
      socket      = /tmp/mysql.sock  
      skip-external-locking  
      key_buffer_size = 16M  
      max_allowed_packet = 1M  
      table_open_cache = 64  
      sort_buffer_size = 512K  
      net_buffer_length = 8K  
      read_buffer_size = 256K  
      read_rnd_buffer_size = 512K  
      myisam_sort_buffer_size = 8M  
      character-set-server=utf8  
      init_connect='SET NAMES utf8' 
    # 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  
    # (via the "enable-named-pipe" option) will render mysqld useless!  
    #   
    #skip-networking  
    
      # Replication Master Server (default)  
      # binary logging is required for replication  
      log-bin=mysql-bin  
    
        # binary logging format - mixed recommended  
        binlog_format=mixed  
    
          # required unique id between 1 and 2^32 - 1  
          # defaults to 1 if master-host is not set  
          # but will not function as a master if omitted  
          server-id   = 1  
    
        # Replication Slave (comment out master section to use this)  
        #  
        # To configure this host as a replication slave, you can choose between  
        # two methods :  
        #  
        # 1) Use the CHANGE MASTER TO command (fully described in our manual) -  
        #    the syntax is:  
        #  
        #    CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>,  
        #    MASTER_USER=<user>, MASTER_PASSWORD=<password> ;  
        #  
        #    where you replace <host>, <user>, <password> by quoted strings and  
        #    <port> by the master's port number (3306 by default).  
        #  
        #    Example:  
        #  
        #    CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306,  
        #    MASTER_USER='joe', MASTER_PASSWORD='secret';  
        #  
        # OR  
        #  
        # 2) Set the variables below. However, in case you choose this method, then  
        #    start replication for the first time (even unsuccessfully, for example  
        #    if you mistyped the password in master-password and the slave fails to  
        #    connect), the slave will create a master.info file, and any later  
        #    change in this file to the variables' values below will be ignored and  
        #    overridden by the content of the master.info file, unless you shutdown  
        #    the slave server, delete master.info and restart the slaver server.  
        #    For that reason, you may want to leave the lines below untouched  
        #    (commented) and instead use CHANGE MASTER TO (see above)  
        #  
        # required unique id between 2 and 2^32 - 1  
        # (and different from the master)  
        # defaults to 2 if master-host is set  
        # but will not function as a slave if omitted  
        #server-id       = 2  
        #  
        # The replication master for this slave - required  
        #master-host     =   <hostname>  
        #  
        # The username the slave will use for authentication when connecting  
        # to the master - required  
        #master-user     =   <username>  
        #  
        # The password the slave will authenticate with when connecting to  
        # the master - required  
        #master-password =   <password>  
        #  
        # The port the master is listening on.  
        # optional - defaults to 3306  
        #master-port     =  <port>  
        #  
        # binary logging - not required for slaves, but recommended  
        #log-bin=mysql-bin  
    
          # 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]  
              no-auto-rehash  
              # Remove the next comment character if you are not familiar with SQL  
              #safe-updates  
              default-character-set=utf8   
    
            [myisamchk]  
            key_buffer_size = 20M  
            sort_buffer_size = 20M  
            read_buffer = 2M  
            write_buffer = 2M  
    
              [mysqlhotcopy]  
              interactive-timeout

    4、重启MySQL服务。

    已采纳该答案
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  • 试一下Navicat中新建MySql连接时在连接界面,编码方式选择Auto即可,不用设置UTF-8.

    这里写图片描述

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  • 有问必答小助手 2021-06-03 15:16

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