Python(1040，“连接过多") [英] Python (1040, 'Too many connections')

问题描述

im新手使用Python. 我有3个属性(名称，价格，图像)的Item表 我想从链接获取html并保存到表中.所以我这样做

im newbie in Python. I have Item table with 3 attributes ( name, price, image) I want to get html from link and save to table. So i do that

from books.models import Book, Author, Publisher, Item
import urllib
import gzip
from StringIO import StringIO
from BeautifulSoup import BeautifulSoup
import MySQLdb as mdb

def updateItems(request): 
    con = mdb.connect('localhost', 'anhnt', '12', 'db_django');
    cur = con.cursor()
    link = "http://pandagift.vn/i263/price1/qua-tang-doc-dao.htm"
    request = urllib.urlopen(link)
    output1 = open('web.txt', 'wb')
    html = ""
    html = request.read()
    output1.write(html)
    output1.close()
    beautifulSoup = BeautifulSoup(html)
    list_item = beautifulSoup.findAll("div", {"class":"Item_ProcNews"})
    if list_item:
    for item in list_item :
        #lay anh san pham
        image = item.findAll("img")[0]      
        st = str(image)
        beginindex = st.find('src') + 5
            endindex = st.find('jpg') + 3
        if(endindex == 2):
                endindex = st.find('png') + 3
            if(endindex == 2):
            endindex = st.find('jpeg') + 4
            if(endindex == 3):
                endindex = st.find('gif') + 3
            if(endindex == 2):
                        endindex = st.find('bmp') + 3
                if(endindex == 2):
                        endindex = st.find('JPG') + 3
        itemimage = str(image)[beginindex:endindex].encode('utf-8')
        #lay ten san pham
            name = item.findAll("span", {"class":"item-name"})[0]
        temp = name.findAll("a")[0]
        #itemname = temp.get('alt').encode('utf-8')
        itemname = temp.string.encode('utf-8')
            #lay gia san pham
            price = item.findAll("span", {"class":"price"})[0]
        #temp1 = str(price)
        #beginindex1 = temp1.find('price') + 7
            #endindex1 = temp1.find('/span') -1
        #itemprice = str(temp1)[beginindex1:endindex1]
        itemprice = str(price.string)
        #luu vao csdl
        query = "INSERT INTO books_item(name, price, image) VALUES('"+itemname+"', '"+itemprice+"', '"+itemimage+"')"
        cur.execute(query)
        #print query
    else:
        cur.execute("INSERT INTO books_item(name, price) VALUES('Hat', '10000vnd')")
    updateItems(request)

返回

  Exception Type:   OperationalError
  Exception Value:  (1040, 'Too many connections')

请告诉我为什么会发生，我可以解决它.非常感谢:)

Please tell me why its happen and can i do fix it. Thanks many :)

推荐答案

http://dev.mysql.com/doc/refman/5.0/en/too-many-connections.html

如果在尝试连接到mysqld服务器时收到太多连接错误，则意味着所有可用连接正在被其他客户端使用.

If you get a Too many connections error when you try to connect to the mysqld server, this means that all available connections are in use by other clients.

允许的连接数由max_connections系统变量控制.其默认值为100.如果需要支持更多连接，则应为此变量设置一个较大的值.

The number of connections permitted is controlled by the max_connections system variable. Its default value is 100. If you need to support more connections, you should set a larger value for this variable.

这意味着您打开的数据库连接数量超出了服务器允许的数量，而没有关闭它们.我从未在您的代码中看到对close连接con的调用.

This means that you have opened more connections to the database than permitted by the server without closing them. I never see calls to close the connection con in your code.

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