捕获错误

mysql> show create table testtransaction;
+-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table           | Create Table                                                                                                                                                                                                                                                                                                                              |
+-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| testtransaction | CREATE TABLE `testtransaction` (
  `sn` int(11) NOT NULL AUTO_INCREMENT,
  `ip` varchar(40) COLLATE utf8_unicode_ci DEFAULT NULL,
  `info` varchar(200) COLLATE utf8_unicode_ci DEFAULT NULL,
  `env` varchar(40) COLLATE utf8_unicode_ci DEFAULT NULL,
  PRIMARY KEY (`sn`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci |
+-----------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

url(r'^testtransaction/$', newview.testtransaction),

url(r'^testtransaction/$', newview.testtransaction),

def testtransaction(request):
    print  req.get_full_path()
    a= req.GET['ip']
    b= req.GET['info']
    c= req.GET['env']
    param={'ip':a,'info':b,'env':c}
    print param
    conn= MySQLdb.connect(
        host='localhost',
        port = 3306,
        user='root',
        passwd='1234567',
        db ='DEVOPS'
        )
    cursor = conn.cursor()
    sql = "insert into testtransaction(ip,info,env) values('%s','%s','%s')" % (a,b,c)
    try :
     cursor.execute(sql)
     conn.commit()
     return HttpResponse('add success')
    except :
     conn.rollback()
     return HttpResponse('add failed')
	 
	 
System check identified no issues (0 silenced).
March 07, 2018 - 20:12:45
Django version 1.11, using settings 'mysite.settings'
Starting development server at http://0.0.0.0:9000/
Quit the server with CONTROL-C.
/testtransaction/?ip=1.1.1.1&info=%27aa%27&env=%27hy%27
{u'info': u"'aa'", u'ip': u'1.1.1.1', u'env': u"'hy'"}
[07/Mar/2018 20:12:48] "GET /testtransaction/?ip=1.1.1.1&info=%27aa%27&env=%27hy%27 HTTP/1.1" 200 10



Starting development server at http://0.0.0.0:9000/
Quit the server with CONTROL-C.
/testtransaction/?ip=1.1.1.1&info=%27aa%27&env=%27hy%27
{u'info': u"'aa'", u'ip': u'1.1.1.1', u'env': u"'hy'"}
(1064, "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'aa'',''hy'')' at line 1")
[07/Mar/2018 20:38:51] "GET /testtransaction/?ip=1.1.1.1&info=%27aa%27&env=%27hy%27 HTTP/1.1" 200 10


/testtransaction/?ip=1.1.1.1&info=aa&env=hy
{u'info': u'aa', u'ip': u'1.1.1.1', u'env': u'hy'}
(1062, "Duplicate entry '1.1.1.1' for key 'testtransaction_idx1'")
[07/Mar/2018 20:42:04] "GET /testtransaction/?ip=1.1.1.1&info=aa&env=hy HTTP/1.1" 200 10


try之后的代码组,就是你打算管理的代码。except之后的代码组,则是你处理错误的代码:




a=10
b=2
try:
    c=a/b
    print c
except e:
    print e
	


a=10
b=0
try:
    c=a/b
    print c
except Exception, e:
    print e
	
C:Python27python.exe C:/Users/TLCB/PycharmProjects/untitled/mycompany/ddd/a8.py
integer division or modulo by zero