Question

我正在使用python3，我正在创建包含两个get方法和一个post方法的简单Web服务器。

get方法工作正常，但post方法没有显示任何消息。

以下是代码：

from http.server import BaseHTTPRequestHandler, HTTPServer

导入cgi class webServerHandler（BaseHTTPRequestHandler）：

def do_GET(self):
    try:
        if self.path.endswith("/hello"):
            self.send_response(200)
            self.send_header('Content-type', 'text/html')
            self.end_headers()
            output = ""
            output += "<html><body>"
            output += "<h1>Hello!</h1>"
            output += '''<form method='POST' enctype='multipart/form-data' action='/hello'><h2>What would you like me to say?</h2><input name="message" type="text" ><input type="submit" value="Submit"> </form>'''
            output += "</body></html>"
            self.wfile.write(bytes(output,'UTF-8'))
            print (output)
            return

        if self.path.endswith("/hola"):
            self.send_response(200)
            self.send_header('Content-type', 'text/html')
            self.end_headers()
            output = ""
            output += "<html><body>"
            output += "<h1>&#161 Hola !</h1>"
            output += '''<form method='POST' enctype='multipart/form-data' action='/hello'><h2>What would you like me to say?</h2><input name="message" type="text" ><input type="submit" value="Submit"> </form>'''
            output += "</body></html>"
            self.wfile.write(bytes(output,'UTF-8'))
            print (output)
            return

    except IOError:
        self.send_error(404, 'File Not Found: %s' % self.path)

def do_POST(self):
    try:
        self.send_response(301)
        self.send_header('Content-type', 'text/html')
        self.end_headers()
        ctype, pdict = cgi.parse_header(
            self.headers.getheader('content-type'))
        if ctype == 'multipart/form-data':
            fields = cgi.parse_multipart(self.rfile, pdict)
            messagecontent = fields.get('message')
        output = ""
        output += "<html><body>"
        output += " <h2> Okay, how about this: </h2>"
        output += "<h1> %s </h1>" % messagecontent[0]
        output += '''<form method='POST' enctype='multipart/form-data' action='/hello'><h2>What would you like me to say?</h2><input name="message" type="text" ><input type="submit" value="Submit"> </form>'''
        output += "</body></html>"
        self.wfile.write(bytes(output,'UTF-8'))
        print (output)
    except:
        pass

def main():
    try:
        port = 8080
        server = HTTPServer(('', port), webServerHandler)
        print ("Web Server running on port %s" % port)
        server.serve_forever()
    except KeyboardInterrupt:
        print (" ^C entered, stopping web server....")
        server.socket.close()

if __name__ == '__main__':
    main()

Answer 1

以下是如何指定和捕获请求类型的简单示例。

您可以选择功能的访问路径，以及路径可用的方法。进入函数后，您可以捕获request.method类型，并从那里处理您的案例。

from flask import request

@app.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        do_the_login()
    elif request.method == 'GET':
        get_user_info()
    else:
        print("Unsupported request")

post方法不在python 3中显示任何消息

1 个答案: