feat: 修改爬蟲方式
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137
getData.py
137
getData.py
@ -4,33 +4,35 @@ import os
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import csv
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from bs4 import BeautifulSoup as bs
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header = {
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'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:79.0) Gecko/20100101 Firefox/79.0',
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'Cookie': '輸入登入暨大教務系統後所得到的cookie'
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}
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session = requests.Session()
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mainURL = "https://ccweb.ncnu.edu.tw/student/"
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courses = []
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generalCourse = []
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def getGeneralCourseData(year):
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'''
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透過年份取得 通識課程分類的csv檔
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供後續課程對應。
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def login(username, password):
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global session
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response = session.get('https://ccweb.ncnu.edu.tw/student/login.php')
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root = bs(response.text, 'html.parser')
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loginToken = root.find('input', {'name': 'token'}).get('value')
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先儲存到 generalCourse list，後續再用 courseID 對應通識分類
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'''
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# request login page
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response = session.post(
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"https://ccweb.ncnu.edu.tw/student/login.php",
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data={
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'token': loginToken,
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'modal': '0',
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'username': username,
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'password': password,
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'type': 'a'
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}
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)
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# 教務系統有開放 年度的query
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# 但實際操作後似乎僅開放當前學年度
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response = requests.get(mainURL+"aspmaker_student_common_rank_courses_viewlist.php?x_studentid=0&z_studentid=LIKE&x_year={}&z_year=%3D&cmd=search&export=csv".format(year), headers=header)
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data = response.text
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courses = data.split('\r\n')[1:-1]
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for course in courses:
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course = course.split(',')
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generalCourse.append(course)
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# 成功的話 return http 302, redirect
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if len(response.history)!=0:
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return True
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else:
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return False
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def curlDepartmentCourseTable(year):
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'''
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@ -39,74 +41,63 @@ def curlDepartmentCourseTable(year):
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'''
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print("取得所有課程資料：")
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response = requests.get(mainURL+"aspmaker_course_opened_semester_stat_viewlist.php?x_year={}&recperpage=ALL".format(year), headers=header)
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data = response.text
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root = bs(data, "html.parser")
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# 切換年度，應該是用 cookie 儲存當前閱覽的年份
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url = 'https://ccweb.ncnu.edu.tw/student/aspmaker_course_opened_detail_viewlist.php?cmd=search&t=aspmaker_course_opened_detail_view&z_year=%3D&x_year={}&z_courseid=%3D&x_courseid=&z_cname=LIKE&x_cname=&z_deptid=%3D&x_deptid=&z_division=LIKE&x_division=&z_grade=%3D&x_grade=&z_teachers=LIKE&x_teachers=&z_not_accessible=LIKE&x_not_accessible='
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response = session.get(url.format(year))
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count = 1
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departmentsTR = root.findAll('tr')[1:] # 清除 thead
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for tr in departmentsTR:
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name = tr.findAll('td')[4].find('span').find('span').string # 取得 科系名稱
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link = mainURL + tr.find('a').get('data-url').replace('amp;', '') # 清除不必要符號， 取得 連結
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print("擷取{}課程... ({}/{})...".format(name, count, len(departmentsTR)))
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count += 1
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extractDepartmentCourseTable(name, link) # 透過連結 開始擷取 各科系課程
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# 取得 所有課程的 csv
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response = session.get('https://ccweb.ncnu.edu.tw/student/aspmaker_course_opened_detail_viewlist.php?export=csv')
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with open("allCourses.csv", "wb") as fp:
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fp.write(response.content)
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def extractDepartmentCourseTable(departmentName, link):
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def extractDepartmentCourseTable(year):
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'''
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透過各科系連結取得課程資訊
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若為通識類別還要跟csv檔資料做對應，取得正確通識類別
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對應後存取到 output.json
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'''
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response = requests.get(link, headers=header)
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data = response.text
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root = bs(data, "html.parser")
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with open("allCourses.csv") as fp:
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csvData = fp.read()
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ans = []
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courses = csvData.split('"\n')[1:-1]
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for course in courses:
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course = course.replace('\n', '.')
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# print(course)
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data = course[1:].split('","')
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courseTR = root.findAll('tr')[1:] # 清除 thead
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for tr in courseTR:
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courseObj = {}
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tds = tr.find_all('td')
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courseObj['link'] = mainURL + tds[0].find('a').get('href')
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courseObj['year'] = tds[1].find('span').string
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courseObj['number'] = tds[2].find('span').string
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courseObj['class'] = tds[3].find('span').string
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courseObj['name'] = tds[4].find('span').string
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courseObj['department'] = tds[5].find('span').string
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courseObj['graduated'] = tds[6].find('span').string
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courseObj['grade'] = tds[7].find('span').string
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courseObj['teacher'] = tds[8].find('span').string
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courseObj['place'] = tds[9].find('span').string
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courseObj['time'] = tds[11].find('span').string
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baseLink = "https://ccweb.ncnu.edu.tw/student/aspmaker_course_opened_detail_viewview.php?showdetail=&year={}&courseid={}&_class={}&modal=2"
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courseObj['link'] = baseLink.format(year, data[1].zfill(6), data[2])
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courseObj['year'] = data[0]
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courseObj['number'] = data[1]
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courseObj['class'] = data[2]
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courseObj['name'] = data[3]
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courseObj['department'] = data[4]
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courseObj['graduated'] = data[6]
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courseObj['grade'] = data[7]
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courseObj['teacher'] = data[8]
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courseObj['place'] = data[9]
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courseObj['time'] = data[13]
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courseObj['credit'] = data[14]
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if courseObj['department']=="99, 通識" :
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flag = False
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for row in generalCourse:
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if row[2] == '"{}"'.format(courseObj['number']):
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courseObj['department'] = row[0].replace('"', '')
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generalCourse.remove(row)
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flag = True
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break
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if not flag:
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print(" - 找不到對應的通識類別： {} ( {} )".format(courseObj['name'], courseObj['number']))
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courses.append(courseObj)
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with open('output.json', 'w') as fp:
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json.dump(courses, fp)
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ans.append(courseObj)
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with open("歷年課程資料/{}_output.json".format(year), 'w') as fp:
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json.dump(ans, fp, ensure_ascii=False)
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if __name__ == "__main__":
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year = input("年份: ")
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getGeneralCourseData(year)
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while True:
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username = input("學號： ")
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password = input("密碼： ")
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if login(username, password):
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break
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else:
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print("登入失敗！")
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curlDepartmentCourseTable(year)
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print("\n\n=====================")
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print("未列入追蹤的通識課程")
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print("=====================\n")
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for notIn in generalCourse:
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if "體育:" not in notIn[5]:
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print(" - 未列入追蹤的新通識課程： {}".format(notIn))
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extractDepartmentCourseTable("1101")
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