質問編集履歴
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サブスクリプション：Visual Studio Enterprise – MPN
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場所：西日本
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App Serviceプラン：B1
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Azure SQL Databaseを用いたウェブアプリを作成し、
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同じく
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同じくAzureのWebappにデプロイしました。
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デプロイした後1日～2日ほどは正常に動作しますが、
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関係ありそうなコードは
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```python
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# dao.py
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class DbManeger:
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server = '〇〇.database.windows.net'
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database = '〇〇'
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username = '〇〇'
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password = '〇〇'
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driver= '{ODBC Driver 17 for SQL Server}'
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cnxn = pyodbc.connect('DRIVER='+driver+';SERVER=tcp:'+server+';PORT=1433;DATABASE='+database+';UID='+username+';PWD='+ password)
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cursor = cnxn.cursor()
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select = "SELECT * FROM dbo.users"
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def select_db(self, select):
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self.cursor.execute(select)
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rows = self.cursor.fetchall()
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rows = [list(item) for item in rows]
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return rows
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def close_db(self):
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self.cursor.close()
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self.cnxn.close()
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def execute(self, exe):
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self.cursor.execute(exe)
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self.cursor.execute("COMMIT")
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```
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```python
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# app.py
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@app.route('/login', methods=["GET", "POST"])
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def login():
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if(request.method == "POST"):
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users = config.get_userlist() # ログイン用ユーザー
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def nested_dict(): return defaultdict(nested_dict)
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user_check = nested_dict()
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for i in users.values():
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user_check[i.name]["password"] = i.password
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user_check[i.name]["id"] = i.id
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user_check[i.name]["data"] = i.data
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# ユーザーチェック
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if(request.form["username"] in user_check and request.form["password"] == user_check[request.form["username"]]["password"]):
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# ユーザーが存在した場合はログイン
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login_user(users.get(user_check[request.form["username"]]["id"]))
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session["username"] = request.form["username"]
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session["password"] = request.form["password"]
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itemlist = config.ITEM_LIST
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session["itemlist"] = itemlist[1]
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data_state = user_check[request.form["username"]]["data"]
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session["data_state"] = data_state
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return render_template("index.html",
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title="〇〇",
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login_info=login_info_state())
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else:
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return render_template("login.html", msg="パスワードが違います。",
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title="〇〇",
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login_info=login_info_state())
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else:
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return render_template("login.html",
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title="〇〇",
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login_info=login_info_state())
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```
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```python
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# config.py
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def get_itemlist():
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db_maneger = dao.DbManeger()
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items = db_maneger.select_db("select * from dbo.hin_list ORDER BY hin_name")
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items = np.array(items).T.tolist()
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return items
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ITEM_LIST = get_itemlist()
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hin_code = ITEM_LIST[0][0]
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db_maneger = DbManeger()
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past_data = db_maneger.select_db(f"SELECT days.date, days.ave_temp, days.EUR_YEN, hin.tanka, hin.PCR FROM dbo.forecast_days AS days INNER JOIN dbo.forecast_{hin_code} AS hin ON days.date = hin.date")
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src_data = pd.DataFrame(past_data, columns=["日付", "平均気温(℃)", "ユーロ/円", "単価", "PCR"])
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datelist = src_data["日付"].to_numpy().tolist()
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FORECAST_PERIOD = f"{datelist[0]}～{datelist[-1]}"
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class User(UserMixin):
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def __init__(self, id, name, password, data):
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self.id = id
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self.name = name
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self.password = password
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self.data = data
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def get_userlist():
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db_maneger = dao.DbManeger()
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users = db_maneger.select_db("select * from dbo.users")
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userlist = []
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i = 0
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for row in users:
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row.insert(0, i)
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userlist.append(row)
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i = i + 1
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userlist = np.array(userlist).T.tolist()
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USERS = {}
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for i in range(len(userlist[0])):
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Userr = User(i + 1, userlist[1][i], userlist[2][i], userlist[3][i])
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USERS[i + 1] = Userr
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return USERS
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```
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エラーは以下の通りです。
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File "/tmp/8d967a1d088906d/app.py", line 286, in login
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users = config.get_userlist()
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File "/tmp/8d967a1d088906d/config.py", line 65, in get_userlist
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users = db_maneger.select_db("select * from dbo.users")
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File "/tmp/8d967a1d088906d/model/dao.py", line 20, in select_db
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self.cursor.execute(select)
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pyodbc.OperationalError: ('08S01', '[08S01] [Microsoft][ODBC Driver 17 for SQL Server]Communication link failure (0) (SQLExecDirectW)')
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"POST /login HTTP/1.1" 500 290 "https://〇〇.azurewebsites.net/" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.159 Safari/537.36"
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2021-09-01T00:21:58.555787350Z key error
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ローカル環境ではこのエラーは起きず、デプロイすると発生します。
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15
287
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なおpython はver3.7.9です。
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