Home Backend Development Python Tutorial Python中让MySQL查询结果返回字典类型的方法

Python中让MySQL查询结果返回字典类型的方法

Jun 16, 2016 am 08:42 AM
mysql python

Python的MySQLdb模块是Python连接MySQL的一个模块,默认查询结果返回是tuple类型,只能通过0,1..等索引下标访问数据
默认连接数据库:

复制代码 代码如下:

MySQLdb.connect(
    host=host,
        user=user,
        passwd=passwd,
        db=db,
        port=port,
        charset='utf8'
)
查询数据:
复制代码 代码如下:

cur = conn.cursor()
cur.execute('select b_id from blog limit 1')
data = cur.fetchall() 
cur.close()
conn.close()

打印:
复制代码 代码如下:

for row in data:
    print type(row)
    print row

执行结果:
复制代码 代码如下:


(1L,)

为tuple类型。
我们可以这么干使得数据查询结果返回字典类型,即 字段=数据
导入模块
复制代码 代码如下:

import MySQLdb.cursors
在连接函数里加上这个参数  cursorclass = MySQLdb.cursors.DictCursor 如:
复制代码 代码如下:

MySQLdb.connect(
    host=host,
        user=user,
        passwd=passwd,
        db=db,
        port=port,
        charset='utf8',
    cursorclass = MySQLdb.cursors.DictCursor
)
再重新运行脚本,看看执行结果:
复制代码 代码如下:


{'b_id': 1L}

搞定!
注意,在连接的时候port如果要指定则值必须是整型,否则会出错!
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