解决python连接mysql报错问题
最近跑python脚本时遇到一个问题，当sql语句中有中文时，执行python脚本报以下错误：
Traceback (most recent call last):
File "kpi_daily_report.py", line 356, in
result = cal(line, sys.argv[1], sys.argv[2])
File "kpi_daily_report.py", line 324, in cal
result = run(sql)
File "kpi_daily_report.py", line 49, in run
rtn = conn31.selectall(sql)
File "/data0/home/yangjing150/test/kpidaily222/mysql_db_connector.py", line 100, in selectall
raise ex;
UnicodeEncodeError: 'latin-1' codec can't encode characters in position 204-206: ordinal not in range(256)
经过查询与测试，下面三点可以完美解决问题
1、python脚本设置utf-8为默认字符集
import os, sys
import mysql
reload(sys)
sys.setdefaultencoding( "utf-8" )
2、mysql连接时，设置字符集charset='utf8'
3、cursor执行sql语句时，加上字符集utf8的设置
self.cursor.execute('SET NAMES utf8;')
具体代码如下：
def selectall(self, commandText):
rtn = None
try:
if self.auto and self.con == None:
self.con = mysql.connect(host = self.host, port = self.port,
user = self.user, passwd = self.passwd, db = self.db,
connect_timeout = 1 ,charset='utf8')
if self.con:
self.cursor = self.con.cursor()
self.cursor.execute('SET NAMES utf8;')
if self.cursor:
self.cursor.execute('SET NAMES utf8;')
self.cursor.execute(commandText)
rtn = self.cursor.fetchall()
except Exception as ex:
raise ex;
finally:
if self.auto:
self.close()
return rtn
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