Flask error : Method Not Allowed The method is not allowed for the requested URL

Question

我正在使用 Flask 制作电影推荐系统项目，当我点击登录时我添加了登录页面，它显示不允许的方法所请求的 URL 不允许该方法。 “每当我尝试将数据提交到我的 Flask 表单时，我都会收到以下错误：

Method Not Allowed The method is not allowed for the requested URL.
Relevant parts of my code are as follows:
when i click on login it shows error method Not allowed.
help regarding this solution.
"

#自动完成一些电影

def get_suggestions():
        data = pd.read_csv("tmdb.csv")
        return list(data["title"].str.capitalize())
    

app = Flask(__name__)

#主页

@app.route("/index", methods=["GET", "POST"])
def index():

    NewMovies = []
    with open("movieR.csv", "r") as csvfile:
        readCSV = csv.reader(csvfile)
        NewMovies.append(random.choice(list(readCSV)))
    m_name = NewMovies[0][0]
    m_name = m_name.title()

    with open("movieR.csv", "a", newline="") as csv_file:
        fieldnames = ["Movie"]
        writer = csv.DictWriter(csv_file, fieldnames=fieldnames)
        writer.writerow({"Movie": m_name})
        result_final = get_recommendations(m_name)
        names = []
        dates = []
        ratings = []
        overview = []
        types = []
        mid = []
        for i in range(len(result_final)):
            names.append(result_final.iloc[i][0])
            dates.append(result_final.iloc[i][1])
            ratings.append(result_final.iloc[i][2])
            overview.append(result_final.iloc[i][3])
            types.append(result_final.iloc[i][4])
            mid.append(result_final.iloc[i][5])
    suggestions = get_suggestions()

    return render_template(
        "index.html",
        suggestions=suggestions,
        movie_type=types[5:],
        movieid=mid,
        movie_overview=overview,
        movie_names=names,
        movie_date=dates,
        movie_ratings=ratings,
        search_name=m_name,
    )

#登录码

@app.route("/")
@app.route("/login", methods=["GET", "POST"])
def login():
    if flask.request.method == "POST":
        un = request.form["username"]
        pwd = request.form["password"]
        if un not in database:
            return flask.render_template("login.html", info="Invalid User")
        else:
            if database[un] != pwd:
                return flask.render_template("login.html", info="Invalid Password")
            else:
                return render_template("index.html")
    return render_template("login.html")


if __name__ == "__main__":
    app.run()

Answer 1

您没有在 @app.route("/") 中指定 methods。

新代码：

@app.route("/", methods=["GET", "POST"])
@app.route("/login", methods=["GET", "POST"])
def login():
    if flask.request.method == "POST":
        un = request.form["username"]
        pwd = request.form["password"]
        if un not in database:
            return flask.render_template("login.html", info="Invalid User")
        else:
            if database[un] != pwd:
                return flask.render_template("login.html", info="Invalid Password")
            else:
                return render_template("index.html")
    return render_template("login.html")

Flask error : Method Not Allowed The method is not allowed for the requested URL

Flask error : Method Not Allowed The method is not allowed for the requested URL

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