账号密码包含反斜线时怎么办
2009-10-19 00:00:00 来源:WEB开发网 闂傚倸鍊搁崐鎼佸磹閹间礁纾归柟闂寸绾惧綊鏌熼梻瀵割槮缁炬儳缍婇弻鐔兼⒒鐎靛壊妲紒鐐劤缂嶅﹪寮婚悢鍏尖拻閻庨潧澹婂Σ顔剧磼閹冣挃闁硅櫕鎹囬垾鏃堝礃椤忎礁浜鹃柨婵嗙凹缁ㄧ粯銇勯幒瀣仾闁靛洤瀚伴獮鍥敍濮f寧鎹囬弻鐔哥瑹閸喖顬堝銈庡亝缁挸鐣烽崡鐐嶆棃鍩€椤掑嫮宓佸┑鐘插绾句粙鏌涚仦鎹愬闁逞屽墰閹虫捇锝炲┑瀣╅柍杞拌兌閻ゅ懐绱撴担鍓插剱妞ゆ垶鐟╁畷銉р偓锝庡枟閻撴洘銇勯幇闈涗簼缂佽埖姘ㄧ槐鎾诲礃閳哄倻顦板┑顔硷工椤嘲鐣烽幒鎴旀瀻闁规惌鍘借ⅵ濠电姷鏁告慨顓㈠磻閹剧粯鈷戞い鎺嗗亾缂佸鏁婚獮鍡涙倷閸濆嫮顔愬┑鐑囩秵閸撴瑦淇婇懖鈺冪<闁归偊鍙庡▓婊堟煛鐏炵硶鍋撻幇浣告倯闁硅偐琛ラ埀顒冨皺閺佹牕鈹戦悙鏉戠仸闁圭ǹ鎽滅划鏃堟偨缁嬭锕傛煕閺囥劌鐏犻柛鎰ㄥ亾婵$偑鍊栭崝锕€顭块埀顒佺箾瀹€濠侀偗婵﹨娅g槐鎺懳熺拠鑼舵暱闂備胶枪濞寸兘寮拠宸殨濠电姵纰嶉弲鎻掝熆鐠虹尨宸ョ€规挸妫濆铏圭磼濡搫顫嶇紓浣风劍閹稿啿鐣烽幋锕€绠婚悹鍥у级瀹撳秴顪冮妶鍡樺鞍缂佸鍨剁粋宥夋倷椤掍礁寮垮┑鈽嗗灣閸樠勭妤e啯鍊垫慨妯煎亾鐎氾拷

问: 如果密码中包含反斜线,该如何处理呢?
答: 在mysql中,反斜线"\"是有特殊意义的,用于转义,因此如果密码中包含"\",就需要特别注意。有一种一劳永逸的办法,就是在密码中不用反斜线,哈哈。另一种,那就是需要多加几个反斜线,例如:
(root:hostname:Thu Oct 15 09:15:38 2009)[mysql]> grant usage on *.* to yejr@localhost identified by 'ye\\\jr';
Query OK, 0 rows affected (0.02 sec)
(root:imysql.cn:Thu Oct 15 09:16:22 2009)[mysql]> select password('ye\jr');
+-------------------------------------------+
| password('ye\jr') |
+-------------------------------------------+
| *9DB91006131E32B22135599033C6A9C196EC3C6B |
+-------------------------------------------+
1 row in set (0.00 sec)
(root:imysql.cn:Thu Oct 15 09:23:32 2009)[mysql]> select host,user,password from user where user='yejr';
+-----------+------+-------------------------------------------+
| host | user | password |
+-----------+------+-------------------------------------------+
| localhost | yejr | *F06D79D5F57894772B64BF3164ABB714EBDBD3E2 |
+-----------+------+-------------------------------------------+
1 row in set (0.01 sec)
(root:imysql.cn:Thu Oct 15 09:16:28 2009)[mysql]> select password('ye\\\jr');
+-------------------------------------------+
| password('ye\\\jr') |
+-------------------------------------------+
| *F06D79D5F57894772B64BF3164ABB714EBDBD3E2 |
+-------------------------------------------+
1 row in set (0.01 sec)
[@tc_10.11.54.224_cnc ~]# mysql -uyejr -p'ye\jr'
Logging to file '/home/mysql/query.log'
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 63
Server version: 5.x.x-percona-highperf-x-log MySQL Percona High Performance Edition (GPL)
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
(yejr:imysql.cn:Thu Oct 15 09:24:58 2009)[(none)]> Bye
从上面的例子可以看到,如果密码中有反斜线,就需要在它前面再加2个反斜线。
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