Add Class DataBase.

This commit is contained in:
zhaoyafan 2022-06-27 17:29:25 +08:00
parent d33b0d2e7f
commit 4fd18d6f14
5 changed files with 132 additions and 6 deletions

1
.gitignore vendored
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*.pyc

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<module type="PYTHON_MODULE" version="4">
<component name="NewModuleRootManager">
<content url="file://$MODULE_DIR$">
<sourceFolder url="file://$MODULE_DIR$/Base" isTestSource="true" />
<sourceFolder url="file://$MODULE_DIR$/Business" isTestSource="true" />
<excludeFolder url="file://$MODULE_DIR$/venv" />
</content>
<orderEntry type="jdk" jdkName="Python 3.10 (AutoFramework)" jdkType="Python SDK" />

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97
Base/Class/DataBase.py Normal file
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import re,pymysql.cursors
class Mysql():
__conn__ = None
__curr__ = None
def __init__(self,**kwargs):
if kwargs:
self.connect(**kwargs)
def connect(self, host=None, port=0, user=None, password='', database=None, charset='', cursor='Dict'):
if self.__conn__:
raise Exception('连接已存在 | Connection already exists.')
match cursor:
case 'Index':
cursorClass = pymysql.cursors.Cursor
case 'Dict':
cursorClass = pymysql.cursors.DictCursor
case _:
cursorClass = pymysql.cursors.DictCursor
self.__conn__ = pymysql.connect(
host=host, port=port,
user=user, password=password,
database=database, charset=charset,
autocommit=True,
connect_timeout=10,
cursorclass=cursorClass,
client_flag=pymysql.constants.CLIENT.MULTI_STATEMENTS
)
self.__curr__ = self.__conn__.cursor()
return self
def execute(self,*args):
if self.__curr__ == None:
raise Exception('连接不存在 | Connection does not exist.')
self.__curr__.execute(*args)
return self
def count(self):
if self.__curr__ == None:
raise Exception('连接不存在 | Connection does not exist.')
return self.__curr__.rowcount
def fetchall(self):
if self.__curr__ == None:
raise Exception('连接不存在 | Connection does not exist.')
return self.__curr__.fetchall()
def fetchone(self):
if self.__curr__ == None:
raise Exception('连接不存在 | Connection does not exist.')
return self.__curr__.fetchone()
def close(self):
if self.__curr__ or self.__conn__:
self.__curr__.close()
self.__conn__.close()
self.__curr__ = None
self.__conn__ = None
return True
if __name__ == '__main__':
# Example.
connConfig = {
"host": "127.0.0.1", "port": 3306, "user": "root", "password": "root", "database": "db", "charset": "utf8",
}
sqlConnect = Mysql(**connConfig,cursor='Dict')
sqlConnect.execute('''
CREATE TABLE `user` (
`uid` int(11) NOT NULL AUTO_INCREMENT,
`username` char(20) DEFAULT NULL,
`email` varchar(64) DEFAULT NULL,
`phone` char(11) DEFAULT NULL,
`password` char(32) DEFAULT NULL,
PRIMARY KEY (`uid`),
UNIQUE KEY `username` (`username`),
UNIQUE KEY `email` (`email`),
UNIQUE KEY `phone` (`phone`)
)
ENGINE=MyISAM AUTO_INCREMENT=10000 DEFAULT CHARSET=utf8;
''')
print('RowCounts:', sqlConnect.count(), 'SqlResult:', sqlConnect.fetchall())
sqlConnect.execute('''
INSERT INTO user (username,email,phone,password) VALUES ("刘德华","10000@example.com","13512310000","0123456789abcdef0123456789abcdef");
''')
print('RowCounts:', sqlConnect.count(), 'SqlResult:', sqlConnect.fetchall())
sqlConnect.execute('''
INSERT INTO user (username,email,phone,password) VALUES ("周润发","10002@example.com","13512310002","0123456789abcdef0123456789abcdef");
''')
print('RowCounts:', sqlConnect.count(), 'SqlResult:', sqlConnect.fetchall())
sqlConnect.execute('''
SELECT * FROM user WHERE uid LIKE "1%";
''')
print('RowCounts:', sqlConnect.count(), 'SqlResult:', sqlConnect.fetchall())
sqlConnect.execute('''
DROP TABLE user;
''')
print('RowCounts:', sqlConnect.count(), 'SqlResult:', sqlConnect.fetchall())
sqlConnect.close()

38
main.py
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print('test')
print('test')
print('test')
print('test')
import pymysql.cursors
import re
conn = pymysql.connect(
host='127.0.0.1',
port=3306,
user='root',
password='root',
database='db',
charset='utf8',
autocommit=True,
connect_timeout=10,
cursorclass=pymysql.cursors.DictCursor,
client_flag=pymysql.constants.CLIENT.MULTI_STATEMENTS
)
curr = conn.cursor()
try:
resu = curr.execute('insert into user (username,email,phone,password) values ("刘周星驰","10003@example.com","13512310003","0123456789abcdef0123456789abcdef");')
# resu = curr.execute('select * from user;')
# resu = curr.execute('select username from user where uid like "1%";')
print('res',resu)
except:
pass
conn.commit()
print(curr.rowcount)
print(curr.fetchall())
i = "4"
match i:
case 1:
print("是1")
case "2"|"3":
print('又是1')
case _:
print("其它")