• SQLite支持的并发访问数


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    sqlite支持的并发访问数??

    import xlrd
    import time
    import sys
    import os
    import requests
    import sqlite3
    import threading
    
    curPath = os.path.abspath(os.path.dirname(__file__))
    rootPath = os.path.split(curPath)[0]
    sys.path.append(rootPath)
    
    MAX_USED_TIMES, overrun_str, DB_KEY_EXHAUST = 1980, '天配额超限,限制访问', 'DB_KEY_EXHAUST'
    
    db = 'py_bdspider_status.db'
    
    
    def db_init_key_table():
        conn = sqlite3.connect(db)
        c = conn.cursor()
        sql = 'DELETE  FROM  baidu_map_key_used'
        c.execute(sql)
        conn.commit()
        pcity_file = '%s\%s' % (curPath, 'bdmap_key.txt')
        with open(pcity_file, 'r', encoding='utf-8') as pf:
            c_ = 0
            for i in pf:
                if len(i) < 4:
                    continue
                author, key = i.replace('
    ', '').split('	')
                localtime_ = time.strftime("%y%m%d%H%M%S", time.localtime())
                sql = 'INSERT INTO baidu_map_key_used (author,key,update_time,today_used) VALUES ("%s","%s","%s",%s) ' % (
                    author, key, localtime_, 0)
                c.execute(sql)
        conn.commit()
        conn.close()
    
    
    # db_init_key_table()
    
    def db_get_one_effective():
        conn = sqlite3.connect(db)
        c = conn.cursor()
        sql = 'SELECT key FROM baidu_map_key_used WHERE today_used<=%s ' % (MAX_USED_TIMES)
        res = c.execute(sql).fetchone()
        if res is None:
            return DB_KEY_EXHAUST
        else:
            return res[0]
        conn.close
    
    
    def db_update_one_today_used(key):
        conn = sqlite3.connect(db)
        c = conn.cursor()
        localtime_ = time.strftime("%y%m%d%H%M%S", time.localtime())
        sql = 'UPDATE baidu_map_key_used SET today_used = today_used+1 ,update_time=%s WHERE key="%s" ' % (
            localtime_, key)
        c.execute(sql)
        conn.commit()
        conn.close()
    
    
    dir_, dir_exception = 'baidu_map_uid', 'baidu_map_uid_exception'
    requested_file_list = []
    requested_file_dir_str, requested_file_dir_exception_str = '%s\%s\' % (curPath, dir_), '%s\%s\' % (
        curPath, dir_exception)
    requested_file_dir = os.listdir(requested_file_dir_str)
    
    
    def chk_if_requested_file():
        for f in requested_file_dir:
            to_in = f.split('.txt')[0]
            if to_in not in requested_file_list:
                requested_file_list.append(to_in)
    
    
    def write_requested_res(request_name, str_, type_='.txt'):
        fname = '%s%s%s' % (requested_file_dir_str, request_name, type_)
        with open(fname, 'w', encoding='utf-8') as ft:
            ft.write(str_)
        print('ok', threading.get_ident(), request_name)
    
    
    def write_requested_exception_res(request_name, str_, type_='.txt'):
        fname = '%s%s%s' % (requested_file_dir_exception_str, request_name, type_)
        with open(fname, 'w', encoding='utf-8') as ft:
            ft.write(str_)
    
    
    fname_source = '官方上传任务.csv_py170829093808-BD_request_name-REDUCTION170829142821'
    
    
    def fun_():
        fname_open = '%s\%s' % (curPath, fname_source)
        FEXCEL = '%s%s' % (fname_open, '.xlsx')
        data = xlrd.open_workbook(FEXCEL)
        table = data.sheets()[0]
        nrows, ncols = table.nrows, table.ncols
        # http://api.map.baidu.com/place/v2/suggestion?query=瀛嘉天下&region=重庆市&city_limit=true&output=json&ak=oy2Q7IluhhwTGlz6l8pXYv6a0m6hXxr1
        base_url = 'http://api.map.baidu.com/place/v2/suggestion?query=R-QUERY&region=R-CITY&city_limit=true&output=json&ak=R-AK'
        for i in range(1, nrows):
            l = table.row_values(i)
            dbid, area_code, name_, request_name, type_, city, district, addr, street = l
            request_name_chk = '%s%s%s' % (city, district, request_name)
            chk_if_requested_file()
            if request_name_chk in requested_file_list:
                continue
            ak = db_get_one_effective()
            if ak == DB_KEY_EXHAUST:
                print(DB_KEY_EXHAUST)
                break
            else:
                url_ = base_url.replace('R-QUERY', request_name).replace('R-CITY', city).replace('R-AK', ak)
            try:
                bd_res_json_str = requests.get(url_).text
                db_update_one_today_used(ak)
                write_requested_res(request_name_chk, bd_res_json_str)
            except Exception:
                bd_res_json_str = '请求百度-异常'
                write_requested_exception_res(request_name_chk, bd_res_json_str)
                print(bd_res_json_str)
    
    
    class MyThread(threading.Thread):
        def __init__(self, func):
            threading.Thread.__init__(self)
            self.func = func
    
        def run(self):
            self.func()
    
    
    thread_sum = 16
    
    
    def main():
        threads_list = []
        for nloop in range(0, thread_sum, 1):
            thread_instance = MyThread(fun_)
            threads_list.append(thread_instance)
        for t in threads_list:
            t.setDaemon = False
            t.start()
        for t in threads_list:
            t.join()
    
    
    if __name__ == '__main__':
        main()
    

      

    import xlrd
    import time
    import sys
    import os
    import requests
    import sqlite3
    import threading
    
    curPath = os.path.abspath(os.path.dirname(__file__))
    rootPath = os.path.split(curPath)[0]
    sys.path.append(rootPath)
    
    MAX_USED_TIMES, overrun_str, DB_KEY_EXHAUST = 1980, '天配额超限,限制访问', 'DB_KEY_EXHAUST'
    
    db = 'py_bdspider_status.db'
    
    
    def db_init_key_table():
        conn = sqlite3.connect(db)
        c = conn.cursor()
        sql = 'DELETE  FROM  baidu_map_key_used'
        c.execute(sql)
        conn.commit()
        pcity_file = '%s\%s' % (curPath, 'bdmap_key.txt')
        with open(pcity_file, 'r', encoding='utf-8') as pf:
            c_ = 0
            for i in pf:
                if len(i) < 4:
                    continue
                author, key = i.replace('
    ', '').split('	')
                localtime_ = time.strftime("%y%m%d%H%M%S", time.localtime())
                sql = 'INSERT INTO baidu_map_key_used (author,key,update_time,today_used) VALUES ("%s","%s","%s",%s) ' % (
                    author, key, localtime_, 0)
                c.execute(sql)
        conn.commit()
        conn.close()
    
    
    # db_init_key_table()
    
    def db_get_one_effective():
        conn = sqlite3.connect(db)
        c = conn.cursor()
        sql = 'SELECT key FROM baidu_map_key_used WHERE today_used<=%s ' % (MAX_USED_TIMES)
        res = c.execute(sql).fetchone()
        if res is None:
            return DB_KEY_EXHAUST
        else:
            return res[0]
        conn.close
    
    
    def db_update_one_today_used(key):
        conn = sqlite3.connect(db)
        c = conn.cursor()
        localtime_ = time.strftime("%y%m%d%H%M%S", time.localtime())
        sql = 'UPDATE baidu_map_key_used SET today_used = today_used+1 ,update_time=%s WHERE key="%s" ' % (
            localtime_, key)
        c.execute(sql)
        conn.commit()
        conn.close()
    
    
    dir_, dir_exception = 'baidu_map_uid', 'baidu_map_uid_exception'
    requested_file_list = []
    requested_file_dir_str, requested_file_dir_exception_str = '%s\%s\' % (curPath, dir_), '%s\%s\' % (
        curPath, dir_exception)
    requested_file_dir = os.listdir(requested_file_dir_str)
    
    
    def chk_if_requested_file():
        for f in requested_file_dir:
            to_in = f.split('.txt')[0]
            if to_in not in requested_file_list:
                requested_file_list.append(to_in)
    
    
    def write_requested_res(request_name, str_, type_='.txt'):
        fname = '%s%s%s' % (requested_file_dir_str, request_name, type_)
        with open(fname, 'w', encoding='utf-8') as ft:
            ft.write(str_)
        print('ok', threading.get_ident(), request_name)
    
    
    def write_requested_exception_res(request_name, str_, type_='.txt'):
        fname = '%s%s%s' % (requested_file_dir_exception_str, request_name, type_)
        with open(fname, 'w', encoding='utf-8') as ft:
            ft.write(str_)
    
    
    fname_source = '官方上传任务.csv_py170829093808-BD_request_name-REDUCTION170829142821'
    
    
    def fun_():
        fname_open = '%s\%s' % (curPath, fname_source)
        FEXCEL = '%s%s' % (fname_open, '.xlsx')
        data = xlrd.open_workbook(FEXCEL)
        table = data.sheets()[0]
        nrows, ncols = table.nrows, table.ncols
        # http://api.map.baidu.com/place/v2/suggestion?query=瀛嘉天下&region=重庆市&city_limit=true&output=json&ak=oy2Q7IluhhwTGlz6l8pXYv6a0m6hXxr1
        base_url = 'http://api.map.baidu.com/place/v2/suggestion?query=R-QUERY&region=R-CITY&city_limit=true&output=json&ak=R-AK'
        i_counter = 0
        for i in range(1, nrows):
            l = table.row_values(i)
            i_counter += 1
            dbid, area_code, name_, request_name, type_, city, district, addr, street = l
            request_name_chk = '%s%s%s' % (city, district, request_name)
            chk_if_requested_file()
            if request_name_chk in requested_file_list:
                continue
            ak = db_get_one_effective()
            if ak == DB_KEY_EXHAUST:
                print(DB_KEY_EXHAUST)
                break
            else:
                url_ = base_url.replace('R-QUERY', request_name).replace('R-CITY', city).replace('R-AK', ak)
            try:
                bd_res_json_str = requests.get(url_).text
                db_update_one_today_used(ak)
                write_requested_res(request_name_chk, bd_res_json_str)
            except Exception:
                bd_res_json_str = '请求百度-异常'
                write_requested_exception_res(request_name_chk, bd_res_json_str)
                print(bd_res_json_str)
    
    
    class MyThread(threading.Thread):
        def __init__(self, func):
            threading.Thread.__init__(self)
            self.func = func
    
        def run(self):
            self.func()
    
    
    thread_sum = 100
    
    
    def main():
        threads_list = []
        for nloop in range(0, thread_sum, 1):
            thread_instance = MyThread(fun_)
            threads_list.append(thread_instance)
        for t in threads_list:
            t.setDaemon = False
            t.start()
        for t in threads_list:
            t.join()
    
    
    if __name__ == '__main__':
        main()
    

      

    import xlrd
    import time
    import sys
    import os
    import requests
    import sqlite3
    import threading
    
    curPath = os.path.abspath(os.path.dirname(__file__))
    rootPath = os.path.split(curPath)[0]
    sys.path.append(rootPath)
    
    db = 'py_bdspider_status.db'
    conn = sqlite3.connect(db)
    c = conn.cursor()
    MAX_USED_TIMES, overrun_str, DB_KEY_EXHAUST = 1980, '天配额超限,限制访问', 'DB_KEY_EXHAUST'
    
    
    def db_init_key_table():
        sql = 'DELETE  FROM  baidu_map_key_used'
        c.execute(sql)
        conn.commit()
        pcity_file = '%s\%s' % (curPath, 'bdmap_key.txt')
        with open(pcity_file, 'r', encoding='utf-8') as pf:
            c_ = 0
            for i in pf:
                if len(i) < 4:
                    continue
                author, key = i.replace('
    ', '').split('	')
                localtime_ = time.strftime("%y%m%d%H%M%S", time.localtime())
                sql = 'INSERT INTO baidu_map_key_used (author,key,update_time,today_used) VALUES ("%s","%s","%s",%s) ' % (
                    author, key, localtime_, 0)
                c.execute(sql)
        conn.commit()
    
    
    # db_init_key_table()
    
    def db_get_one_effective():
        sql = 'SELECT key FROM baidu_map_key_used WHERE today_used<=%s ' % (MAX_USED_TIMES)
        res = c.execute(sql).fetchone()
        if res is None:
            return DB_KEY_EXHAUST
        else:
            return res[0]
    
    
    def db_update_one_today_used(key):
        localtime_ = time.strftime("%y%m%d%H%M%S", time.localtime())
        sql = 'UPDATE baidu_map_key_used SET today_used = today_used+1 ,update_time=%s WHERE key="%s" ' % (
            localtime_, key)
        c.execute(sql)
        conn.commit()
    
    
    dir_, dir_exception = 'baidu_map_uid', 'baidu_map_uid_exception'
    requested_file_list = []
    requested_file_dir_str, requested_file_dir_exception_str = '%s\%s\' % (curPath, dir_), '%s\%s\' % (
        curPath, dir_exception)
    requested_file_dir = os.listdir(requested_file_dir_str)
    
    
    def chk_if_requested_file():
        for f in requested_file_dir:
            to_in = f.split('.txt')[0]
            if to_in not in requested_file_list:
                requested_file_list.append(to_in)
    
    
    def write_requested_res(request_name, str_, type_='.txt'):
        fname = '%s%s%s' % (requested_file_dir_str, request_name, type_)
        with open(fname, 'w', encoding='utf-8') as ft:
            ft.write(str_)
        print('ok', threading.get_ident(), request_name)
    
    
    def write_requested_exception_res(request_name, str_, type_='.txt'):
        fname = '%s%s%s' % (requested_file_dir_exception_str, request_name, type_)
        with open(fname, 'w', encoding='utf-8') as ft:
            ft.write(str_)
    
    
    fname_source = '官方上传任务.csv_py170829093808-BD_request_name-REDUCTION170829142821'
    
    
    def fun_():
        fname_open = '%s\%s' % (curPath, fname_source)
        FEXCEL = '%s%s' % (fname_open, '.xlsx')
        data = xlrd.open_workbook(FEXCEL)
        table = data.sheets()[0]
        nrows, ncols = table.nrows, table.ncols
        # http://api.map.baidu.com/place/v2/suggestion?query=瀛嘉天下&region=重庆市&city_limit=true&output=json&ak=oy2Q7IluhhwTGlz6l8pXYv6a0m6hXxr1
        base_url = 'http://api.map.baidu.com/place/v2/suggestion?query=R-QUERY&region=R-CITY&city_limit=true&output=json&ak=R-AK'
        i_counter = 0
        for i in range(1, nrows):
            l = table.row_values(i)
            i_counter += 1
            print(i_counter)
            if i_counter > 60:
                break
            dbid, area_code, name_, request_name, type_, city, district, addr, street = l
            request_name_chk = '%s%s%s' % (city, district, request_name)
            chk_if_requested_file()
            if request_name_chk in requested_file_list:
                continue
            ak = db_get_one_effective()
            if ak == DB_KEY_EXHAUST:
                print(DB_KEY_EXHAUST)
                break
            else:
                url_ = base_url.replace('R-QUERY', request_name).replace('R-CITY', city).replace('R-AK', ak)
                print(url_)
            try:
                bd_res_json_str = requests.get(url_).text
                db_update_one_today_used(ak)
                write_requested_res(request_name_chk, bd_res_json_str)
            except Exception:
                bd_res_json_str = '请求百度-异常'
                write_requested_exception_res(request_name_chk, bd_res_json_str)
                print(bd_res_json_str)
    
    
    
    class MyThread(threading.Thread):
        def __init__(self, func):
            threading.Thread.__init__(self)
            self.func = func
    
        def run(self):
            self.func()
    
    thread_sum = 4
    
    
    def main():
        threads_list = []
        for nloop in range(0, thread_sum, 1):
            thread_instance = MyThread(fun_)
            threads_list.append(thread_instance)
        for t in threads_list:
            t.setDaemon = False
            t.start()
        for t in threads_list:
            t.join()
    
        conn.close()
    
    
    if __name__ == '__main__':
        main()
    

      

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  • 原文地址:https://www.cnblogs.com/rsapaper/p/7449247.html
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