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miaomiaomiaoa
V2EX  ›  Python

小白求教,这种 json 怎么用 python 解析成参数数组插入 mysql 当中?

  •  
  •   miaomiaomiaoa · 2015-05-11 12:52:17 +08:00 · 3662 次点击
    这是一个创建于 3469 天前的主题,其中的信息可能已经有所发展或是发生改变。

    初学python的小白
    json文件如下:
    [
    {
    "_id": "55501245ef21cb978435bdb0",
    "index": 0,
    "guid": "316f9bb8-1e0e-4b02-ad41-bc2e65966a26",
    "balance": "$1,115.97",
    "age": 34,
    "eyeColor": "brown",
    "name": "Manning Schroeder",
    "gender": "male",
    "about": "Commodo cupidatat occaecat aliquip mollit deserunt fugiat ad sint magna ex anim nisi deserunt anim. Nulla laborum excepteur velit ad sit adipisicing esse minim. Pariatur aliquip reprehenderit adipisicing cupidatat anim labore minim ut.\r\n",
    "tags": [
    "exercitation",
    "amet",
    "quis",
    "consequat"
    ],
    "friends": [
    {
    "id": 0,
    "name": "Mandy Erickson"
    },
    {
    "id": 1,
    "name": "Lang Cooper"
    },
    {
    "id": 2,
    "name": "Hill Alvarado"
    }
    ],
    "greeting": "Hello, Manning Schroeder! You have 1 unread messages.",
    "favoriteFruit": "banana"
    },

    我现在能会读单个元素,但是在拼接字符串的时候,总是出错,球大神解答。
    我的代码如下:
    import json,pprint
    with open('/Users/xxxosx/Downloads/1.json','r') as jf:
    jdata = json.load(jf)
    content = 'insert into xxx values'
    for i in jdata:
    a= {i["_id"],",",i["index"],",",i["guid"],",",i["isActive"],",",i["balance"],i["picture"],i["age"],i["eyeColor"],
    i["name"],i[blahblah]}
    content =content.join(a)
    print content
    for j in range(3):
    print i["friends"][j]["id"],i["friends"][j]["name"]

    5 条回复    2015-05-11 20:41:11 +08:00
    Septembers
        1
    Septembers  
       2015-05-11 12:53:12 +08:00
    建议你去玩MongoDB(我是来歪楼的
    miaomiaomiaoa
        2
    miaomiaomiaoa  
    OP
       2015-05-11 13:06:12 +08:00
    @Septembers 。。我是玩oracle11g得。。
    fangjinmin
        3
    fangjinmin  
       2015-05-11 13:13:23 +08:00
    a=[i["_id"],i["index"],i["guid"],i["isActive"],i["balance"],i["picture"],i["age"],i["eyeColor"],
    i["name"],i[blahblah]]
    content = content + "(" + ",".join(a) + ")"
    fzinfz
        4
    fzinfz  
       2015-05-11 20:37:11 +08:00
    为了LZ的视力着想,建议以后不要string join了,改用%s吧~

    范例: http://mysql-python.sourceforge.net/MySQLdb.html

    c.executemany(
    """INSERT INTO breakfast (name, spam, eggs, sausage, price)
    VALUES (%s, %s, %s, %s, %s)""",
    [
    ("Spam and Sausage Lover's Plate", 5, 1, 8, 7.95 ),
    ("Not So Much Spam Plate", 3, 2, 0, 3.95 ),
    ("Don't Wany ANY SPAM! Plate", 0, 4, 3, 5.95 )
    ] )
    fzinfz
        5
    fzinfz  
       2015-05-11 20:41:11 +08:00
    这有个更好的: http://dev.mysql.com/doc/connector-python/en/connector-python-example-cursor-transaction.html


    add_salary = ("INSERT INTO salaries "
    "(emp_no, salary, from_date, to_date) "
    "VALUES (%(emp_no)s, %(salary)s, %(from_date)s, %(to_date)s)")

    # Insert salary information
    data_salary = {
    'emp_no': emp_no,
    'salary': 50000,
    'from_date': tomorrow,
    'to_date': date(9999, 1, 1),
    }

    cursor.execute(add_salary, data_salary)
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