py插入postgres数据库代码示例2021-05-19
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py插入postgres数据库代码示例
def saveToPostgis(feats,remarks):
# 连接数据库
conn = psycopg2.connect(database='postgis_21_sample', user='postgres', password='postgres', host='192.168.1.100', port='5432')
curs = conn.cursor()
# 编辑写入数据的sql
# xy = [minx,miny,minx,maxy,maxx,maxy,maxx,miny,minx,miny]
# geom = 'POLYGON(({} {},{} {},{} {},{} {},{} {}))'.format(*xy)
# print(geom)
delete_sql = 'delete from gridmanagement where \'remarks\'=\'%s\'' % remarks
curs.execute(delete_sql)
insert_sql = ''
for feat in feats:
geom = feat.geometry()
wkt = geom.asWkt()
id = feat.attribute('id')
wgbh = feat.attribute('wgbh')
insert_sql += 'insert into gridmanagement(NO,GEOM,remarks) values(\'%s\',ST_GeomFromText(\'%s\'),\'%s\');'%(wgbh,wkt,remarks)
curs.execute(insert_sql)
# #判断不存在再进行加入
# sqlSelect = 'select count(*) from geosel where no = \'%s\''%bianhao
# curs.execute(sqlSelect)
# # 获取结果集的每一行
# rows = curs.fetchall()
# for r in rows:
# for nCount in r:
# if nCount==0:
# curs.execute(insert_sql)
# 提交数据
conn.commit()
# 关闭数据库
curs.close()
标签:insert,curs,05,示例,geom,sql,remarks,feat,postgres 来源: https://blog.csdn.net/qq503690160/article/details/117037457