案例一、
from sqlalchemy import create_engine, Integer, Column, String
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
engine = create_engine('mysql+pymysql://xiang:xiang@192.168.48.136/sqlalchemy?charset=utf8')
Base = declarative_base()
class Dictionary(Base):
__tablename__ = 'dictionary'
id = Column(Integer, primary_key=True)
key = Column(String(50))
value = Column(String(50))
DBSession = sessionmaker(bind=engine)
session = DBSession()
word = input("please input your a word:")
result =session.query(Dictionary).filter(Dictionary.key.like("%{0}%".format(word))).all()
for each in result:
print(each.id, each.key, each.value)
案例二、
import codecs
from sqlalchemy import Integer, Column, String, create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
engine = create_engine('mysql+pymysql://xiang:xiang@192.168.48.136/sqlalchemy?charset=utf8')
Base = declarative_base()
class Dictionary(Base):
__tablename__ = 'dictionary'
id = Column(Integer, primary_key=True)
key = Column(String(50))
value = Column(String(50))
DBSession = sessionmaker(bind=engine)
session = DBSession()
class HandleData(object):
def __init__(self, dataFile):
self.dataFile = dataFile
def make_data_to_str(self):
with codecs.open(self.dataFile, encoding='utf-8') as file:
for (num, value) in enumerate(file):
line = value.strip().split()
diction =Dictionary(id=num+1, key=line[0], value=line[1])
session.add(diction)
session.commit()
handleData = HandleData('dictionary.txt')
handleData.make_data_to_str()
session.close()
案例三、
import codecs
from sqlalchemy import Column, MetaData, Table
from sqlalchemy import Integer
from sqlalchemy import String
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
engine = create_engine('mysql+pymysql://xiang:xiang@192.168.48.136/sqlalchemy')
metadata = MetaData(engine)
dictionary = Table('dictionary', metadata,
Column('id', Integer, primary_key=True),
Column('key', String(50)),
Column('value', String(50))
)
metadata.create_all(engine)
