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news.py
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news.py
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# -*- coding:utf-8 -*-
"""
Created on 2019/01/21
@author: Rosen Lee
@group :
"""
import json
import time
import sys
import random
import datetime
import MySQLdb as mdb
import traceback
#import basicData
reload(sys)
sys.setdefaultencoding('utf-8')
"""
CREATE TABLE `news` (
`id` int unsigned not NULL AUTO_INCREMENT PRIMARY KEY ,
`content` text not null comment '内容',
`cursor` varchar(32) null comment '访问API时的标号',
`item_id` int unsigned not null comment 'API返回的标号',
`create_date` datetime default now() comment '输入时间',
`display_time` datetime comment '展示时间',
`score` int comment '权重',
`tag` varchar(1024) comment 'tag',
`source` varchar(8) default 'wsj' comment 'wsj or sina',
`create_by` varchar(32) comment '输入者',
UNIQUE INDEX `item_id_index`(`item_id`, `source`) USING BTREE,
INDEX `tag_index`(`tag`) USING BTREE
)ENGINE=InnoDB DEFAULT CHARSET=utf8;
,
1547970922
https://api-prod.wallstreetcn.com/apiv1/content/lives?channel=global-channel&client=pc&limit=20&first_page=false&accept=live%2Cvip-live&cursor=1547970922
http://zhibo.sina.com.cn/api/zhibo/feed?page=1&page_size=20&zhibo_id=152&tag_id=0&dire=f&dpc=1&pagesize=20&_=1548341385078
"""
try:
from urllib.request import urlopen, Request
except ImportError:
from urllib2 import urlopen, Request
'''
get num of day
'''
def getNumOfDay():
a = time.time()
dayNum = int (time.strftime('%j', time.localtime(a)) )
return dayNum
'''
get num of year, from 2019
'''
def getNumOfYear():
a = time.time()
yearNum = int (time.strftime('%y', time.localtime(a)) )
return yearNum - 19;
class DBAccess:
def __init__(self):
self.conn = None
def __del__( self ):
if self.conn is not None:
self.conn.close()
def commit( self ):
try:
self.conn.commit()
return True
except mdb.Error, e:
self.conn.rollback()
print "Error %d: %s" % (e.args[0], e.args[1])
return False
def connect( self, host='localhost', user='mvno', passwd='123456', db='RECORD', port=3306 ):
try:
self.conn = mdb.connect(host, user, passwd, db, port)
self.conn.cursor().execute("set names utf8")
except mdb.Error, e:
print "Error %d: %s" % (e.args[0], e.args[1])
return False
return True
def Query( self, sql ):
try:
cursor = self.conn.cursor(mdb.cursors.DictCursor)
cursor.execute(sql)
rows = cursor.fetchall()
cursor.close()
return rows
except mdb.Error, e:
print "Error %d: %s" % (e.args[0], e.args[1])
return None
def Insert( self, sql ):
try:
cursor = self.conn.cursor()
cursor.execute(sql)
cursor.close()
return True
except mdb.Error, e:
print "Error %d: %s" % (e.args[0], e.args[1])
return False
def Delete( self, sql ):
try:
cursor = self.conn.cursor()
cursor.execute(sql)
return True
except mdb.Error, e:
print "Error %d: %s" % (e.args[0], e.args[1])
return False
def QueryNews( self, pointNum):
sql = "SELECT * from `news` where `cursor`='%s' " %( pointNum);
print sql
return self.Query(sql)
def QueryMinCursor( self):
sql = "SELECT min(`cursor`) as min from `news` where source = 'wsj' ;" ;
print sql
return self.Query(sql)
def QueryMinId( self, source):
sql = "SELECT if(min(`item_id`) is null, 0, min(`item_id`)) as min from `news` where `source` = '%s' ;" % (source);
print sql
return self.Query(sql)
def QueryMaxId( self, source):
sql = "SELECT if(max(`item_id`) is null, 0, max(`item_id`)) as max from `news` where `source` = '%s' ;" % (source);
print sql
return self.Query(sql)
def InsertNews( self , content, displayTime, cursor, itemId, score):
try:
sql = '''insert into `news` (`content`, `cursor`, `display_time`, `item_id`, `score`) values( '%s', '%s', '%s', '%s', '%s');''' % (content , cursor ,displayTime, itemId, score);
#print (sql)
records = self.Insert(sql)
if records is None:
print (sql)
print "插入数据出错！"
return False
if(True == records) :
self.commit();
return True
except:
traceback.print_exc()
return None
def InsertNewsSina( self , content, displayTime, cursor, itemId, score,tag, source):
try:
sql = '''insert into `news` (`content`, `cursor`, `display_time`, `item_id`, `score`, `tag`, `source`) values( '%s', '%s', '%s', '%s', '%s', '%s', '%s');''' % (content , cursor ,displayTime, itemId, score,tag, source);
print (sql)
records = self.Insert(sql)
if records is None:
print (sql)
print "插入数据出错！"
return False
if(True == records) :
self.commit();
return True
except:
traceback.print_exc()
return None
def getJsonText(url):
time.sleep(random.randint(1, 13)*1)
request = Request(url)
try:
text = urlopen(request, timeout=100).read()
#result = unicode(text,'GBK').encode('UTF-8')
#result = text.encode('gbk', 'ignore')
return text
except :
print ("url Exception")
traceback.print_exc()
return None
org_url="https://api-prod.wallstreetcn.com/apiv1/content/lives?channel=global-channel&client=pc&limit=60&first_page=false&accept=live%2Cvip-live&cursor="
#cursor = '1547970922'
#sina_url="http://zhibo.sina.com.cn/api/zhibo/feed?page=1&page_size=20&zhibo_id=152&tag_id=0&dire=f&dpc=1&pagesize=20&_=1548341385078"
#st = time.localtime(int(cursor))
#displayTime = time.strftime("%Y-%m-%d %X", st)
#sinaMinId = 0
#wsj
def GetPage(cursor):
url = org_url + cursor
page = getJsonText(url)
jsonText = json.loads(page)
itemNum = len(jsonText['data']['items'])
#print(itemNum)
for i in range(itemNum) :
content = jsonText['data']['items'][i]['content_text']
display_time = jsonText['data']['items'][i]['display_time']
st = time.localtime(int(display_time))
displayTime = time.strftime("%Y-%m-%d %X", st)
itemId=jsonText['data']['items'][i]['id']
score=jsonText['data']['items'][i]['score']
ret = db_record.InsertNews(content.encode('utf-8'), displayTime, cursor, itemId, score)
print(ret)
print("next_cursor", jsonText['data']['next_cursor'])
return jsonText['data']['next_cursor'].encode('utf-8');
#sina
'''
#返回 页面信息
"page_info": {
"totalPage": 20,
"pageSize": 20,
"prePage": 1,
"nextPage": 2,
"firstPage": 1,
"lastPage": 20,
"totalNum": 400,
"pName": "page",
"page": 1,
"max_id": 1112501,
"min_id": 1112481,
"last_id": 1112481,
},
'''
def GetPageSina(cursor):
sina_url="http://zhibo.sina.com.cn/api/zhibo/feed?zhibo_id=152&tag_id=0&dire=f&dpc=1&pagesize=20&page_size=20&page="
url = sina_url + str(cursor)
print('url = ', url)
page = getJsonText(url)
jsonText = json.loads(page)
resultCode = jsonText['result']['status']['code']
currentTime = jsonText['result']['timestamp']
#print( "resultCode = ", resultCode )
#print( "current-time = ", currentTime)
dataNode = jsonText['result']['data']['feed']
itemNum = len(dataNode['list'])
pageInfo = dataNode['page_info']
itemId=''
#print('page-size = ', pageInfo['pageSize'])
#print('itemNum', itemNum)
for i in range(itemNum) :
content = dataNode['list'][i]['rich_text'].encode('utf-8')
#content = dataNode['list'][i]['rich_text'].encode('utf-8').decode('unicode_escape')
displayTime = dataNode['list'][i]['create_time'].encode('utf-8')
itemId= dataNode['list'][i]['id']
score= 1
#get tags
tagNum = len(dataNode['list'][i]['tag'])
tagStr = ""
for t in range(tagNum):
#f
if(9 == int(dataNode['list'][i]['tag'][t]['id'])):
score = 2
tagStr = tagStr + "," + dataNode['list'][i]['tag'][t]['name'].encode('utf-8')
ret = db_record.InsertNewsSina(content.encode('utf-8'), displayTime, cursor, itemId, score, tagStr, 'sina')
print( content )
print( tagStr )
# print(displayTime, cursor, itemId, score,tagStr)
pageInfo['max_id'] = dataNode['max_id']
pageInfo['min_id'] = dataNode['min_id']
#pageInfo['last_id'] = itemId
return pageInfo
#param: period, 区间。
# startSecond， 从哪一秒开始？
def LoopGetRecords(period, startSecond):
try:
maxSeconds = 60*60*24*int(period); #获取 n 天的数据
cursorNum = int(startSecond);
while(cursorNum is not None) :
#print(int(time.time()))
#print(cursorNum)
if(int(startSecond) - int(cursorNum) > maxSeconds):
print("超期，不再继续") ;
break;
cursorNum = GetPage(str(cursorNum));
except :
print ("url Exception")
traceback.print_exc()
return None
'''
本次页所在区间最大值， 最小值
数据表中的最大值，最小值
数据越新，id的数值越大。
由于数据在更新，页码包括的数据也可能变化。
本页的最大值 减去 数据表的最大值，即是本轮要更新的数据差。
历史记录
数据表中的最小值 减去 页面返回 的最小值，即为可更新的数据差 。
pageNum = (pageMax - tableMax )/pageSize
142930-120849
每次脚本执行最多更新 页数为30页，每页为20条。
'''
def LoopGetRecordsSina(period, startPage):
try:
pageSize = 20
sinaMinId = 0
idRet = db_record.QueryMinId('sina')
if idRet is not None:
sinaMinId = idRet[0]['min']
sinaMaxId = 0
idRet = db_record.QueryMaxId('sina')
if idRet is not None:
sinaMaxId = idRet[0]['max']
maxPageNum = (int(sinaMaxId) - int(sinaMinId))/pageSize + int(period); #获取 n 页的数据
pageNum = int(startPage);
#用来记录上次的页码，为了防止出现死循环
lastPage = pageNum
while(pageNum is not None) :
print('get page-index = ', pageNum)
#print('start-page = ', startPage)
print('max-page = ', maxPageNum)
if(int(pageNum) - int(startPage) > maxPageNum):
print("----超期，不再继续") ;
break;
pageInfo = GetPageSina(str(pageNum));
pageNum = pageInfo['nextPage']
lastId = pageInfo['min_id']
#if(1==startPage):
#maxPageNum = (pageInfo['max_id'] - sinaMaxId)/pageSize + 1
# print('max-page-num = ', maxPageNum)
# startPage = 0
print('last-id = ', lastId)
print('table-max-id = ', sinaMaxId)
if( lastId < sinaMaxId):
#向下是重复了
print('----到了最近的历史数据区间上限，不再继续')
#顺便 计算历史记录从哪里开始继续找
print(lastId, sinaMinId)
#nextPage = ( lastId - sinaMinId )/pageSize - 1
idRet = db_record.QueryMinId('sina')
if idRet is not None:
sinaMinId = idRet[0]['min']
#跳过重复页面
pageNum = pageNum + (lastId - sinaMinId )/pageSize
print('last-page = ', lastPage)
#判断是否出现重复页码
if(pageNum <= lastPage):
pageNum = pageNum + (lastPage-pageNum) + 1
lastPage = pageNum
print('next-page = ', pageNum)
except :
print ("url Exception")
traceback.print_exc()
return None
'''
another version of get record from sina
'''
def LoopGetRecordsSina_V2(period, startPage):
try:
historyStartPage=6550
pageSize = 20
sinaMinId = 0
idRet = db_record.QueryMinId('sina')
if idRet is not None:
sinaMinId = idRet[0]['min']
sinaMaxId = 0
idRet = db_record.QueryMaxId('sina')
if idRet is not None:
sinaMaxId = idRet[0]['max']
todayNum = getNumOfDay()
yearNum = getNumOfYear()
#96 是指从4月6日开始。
maxPageNum = (todayNum - 96 +1) *period + historyStartPage + yearNum*400;
historyPageNum = (todayNum - 96) *period + historyStartPage + yearNum*400;
# maxPageNum = (int(sinaMaxId) - int(sinaMinId))/pageSize + int(period); #获取 n 页的数据
pageNum = int(startPage);
#用来记录上次的页码，为了防止出现死循环
lastPage = pageNum
while(pageNum is not None) :
print('get page-index = ', pageNum)
#print('start-page = ', startPage)
print('max-page = ', maxPageNum)
if(int(pageNum) - int(startPage) > maxPageNum):
print("----超期，不再继续") ;
break;
pageInfo = GetPageSina(str(pageNum));
pageNum = pageInfo['nextPage']
lastId = pageInfo['min_id']
#if(1==startPage):
#maxPageNum = (pageInfo['max_id'] - sinaMaxId)/pageSize + 1
# print('max-page-num = ', maxPageNum)
# startPage = 0
print('last-id = ', lastId)
print('table-max-id = ', sinaMaxId)
if( lastId < sinaMaxId):
#向下是重复了
print('----到了最近的历史数据区间上限，不再继续')
#顺便 计算历史记录从哪里开始继续找
print(lastId, sinaMinId)
#nextPage = ( lastId - sinaMinId )/pageSize - 1
#跳过重复页面
pageNum = historyPageNum
print('last-page = ', lastPage)
#判断是否出现重复页码
if(pageNum <= lastPage):
pageNum = pageNum + (lastPage-pageNum) + 1
lastPage = pageNum
print('next-page = ', pageNum)
except :
print ("url Exception")
traceback.print_exc()
return None
#
if __name__ == '__main__':
#
if len(sys.argv) > 2 and sys.argv[1] == "-r":
print ("read mode")
# table = OpenFile(sys.argv[2]);
exit()
db_record = DBAccess()
db_record.connect('127.0.0.1', 'db', 'passwd', 'db', 3306)
#nextPage = LoopGetRecordsSina(35, 1);
LoopGetRecordsSina_V2(35,1)
# sys.exit()
# exit();
# 开始处理华尔街 消息
cursorNum = int(time.time())
LoopGetRecords(1, cursorNum);
ret = db_record.QueryMinCursor();
print(ret)
if ret is not None:
#print(ret[0]['min'])
minCursorNum = ret[0]['min']
LoopGetRecords(7, minCursorNum);
print ("end", time.asctime( time.localtime(time.time()) ))