解决方案太麻烦，还不如重新安装一下呢？
下面是转载一些大大的；
2、完善mysql配置文件： 如果确认mysql服务正常运行，还提示文章标题的此错误，那就是“/etc/my.cnf”配置文件的问题了。解决办法是修 改“/etc/my.cnf”配置文件，在配置文件中添加“[client]”选项和“[mysql]”选项，并使用这两个选项下的“socket”参数 值，与“[mysqld]”选项下的“socket”参数值，指向的socket文件路径完全一致。如下： [mysqld] datadir=/storage/db/mysql socket=/storage/db/mysql/mysql.sock ...省略n行（<span class='wp_keywordlink'><a href="http://www.aiezu.com" title="爱E族计算机网络技术博客" target="_blank">爱E族</a></span>）... [client] default-character-set=utf8 socket=/storage/db/mysql/mysql.sock [mysql] default-character-set=utf8 socket=/storage/db/mysql/mysql.sock [mysqld] datadir=/storage/db/mysql socket=/storage/db/mysql/mysql.sock ...省略n行（爱E族）... [client] default-character-set=utf8 socket=/storage/db/mysql/mysql.sock [mysql] default-character-set=utf8 socket=/storage/db/mysql/mysql.sock 其中socket等于的路径就是socket文件的位置，我们只要修改my.cnf文件,告诉mysql，mysqldump，mysqladmin等命令，mysql服 务的socket文件位置在哪里，然后重启mysqld服务即可。 3、php连接mysql服务提示"Can't connect to local MySQL server through socket..."的解决方法 有时候mysql服务正常运行,用户名密码也完全正确，使用php的mysql_connect函数却连接不了mysql，调用php的mysql_error()函 数提示“Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock'”，这是我们需要修 改/etc/php.ini文件。 在/etc/php.ini文件中"[MySQL]"项下找到"mysql.default_socket"，并设置其值指向正确的mysql服务socket文件即可，如: [MySQL] ...省略n行... mysql.default_socket = "/storage/db/mysql/mysql.sock" [MySQL] ...省略n行... mysql.default_socket = "/storage/db/mysql/mysql.sock" 4、python连接mysql提示"Can't connect to local MySQL server through socket..."的解决方法: 在连接mysql数据库函数中指定socket文件，如下： #!/usr/bin/python from MySQLdb import connect conn = connect(db="pzy", user="root", host="localhost", unix_socket="/storage/db/mysql/mysql.sock") cur = conn.cursor() count=cur.execute("show databases") print 'there has %s dbs' % count conn.commit() conn.close() #!/usr/bin/python from MySQLdb import connect conn = connect(db="pzy", user="root", host="localhost", unix_socket="/storage/db/mysql/mysql.sock") cur = conn.cursor() count=cur.execute("show databases") print 'there has %s dbs' % count conn.commit() conn.close() 5. php pdo连接mysql提示"Can't connect to local MySQL server through socket..."的解决方法: 同样在连接字符串添加mysql socket文件的位置即可，如下: <?php $dsn = "mysql:host=localhost;dbname=pzy;unix_socket=/storage/db/mysql/mysql.sock"; $db = new PDO($dsn, 'root', ''); $rs = $db->query("SELECT * FROM qrtest"); while($row = $rs->fetch()){ print_r($row); } ?> <?php $dsn = "mysql:host=localhost;dbname=pzy;unix_socket=/storage/db/mysql/mysql.sock"; $db = new PDO($dsn, 'root', ''); $rs = $db->query("SELECT * FROM qrtest"); while($row = $rs->fetch()){ print_r($row); } ?>
