Traceback (most recent call last):
  File "C:\Program Files (x86)\Python36-32\lib\site-packages\cherrypy\_cpdispatch.py", line 60, in __call__
    return self.callable(*self.args, **self.kwargs)
TypeError: login() missing 1 required positional argument: 'dataString'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
  File "C:\Program Files (x86)\Python36-32\lib\site-packages\cherrypy\_cprequest.py", line 670, in respond
    response.body = self.handler()
  File "C:\Program Files (x86)\Python36-32\lib\site-packages\cherrypy\lib\encoding.py", line 221, in __call__
    self.body = self.oldhandler(*args, **kwargs)
  File "C:\Program Files (x86)\Python36-32\lib\site-packages\cherrypy\_cpdispatch.py", line 66, in __call__
    raise sys.exc_info()[1]
  File "C:\Program Files (x86)\Python36-32\lib\site-packages\cherrypy\_cpdispatch.py", line 64, in __call__
    test_callable_spec(self.callable, self.args, self.kwargs)
  File "C:\Program Files (x86)\Python36-32\lib\site-packages\cherrypy\_cpdispatch.py", line 163, in test_callable_spec
    raise cherrypy.HTTPError(404, message=message)
cherrypy._cperror.HTTPError: (404, 'Missing parameters: dataString')
Cherrypy engine printout
[12/Jun/2017:13:44:03]  Testing database is disabled, deleting test users... skipping...
[12/Jun/2017:13:44:03]  ====== INIT SQL ======
[12/Jun/2017:13:44:03]  Connecting to PostgreSQL database...
[12/Jun/2017:13:44:03]  Testing engine is enabled, adding record...
[12/Jun/2017:13:44:03]  ====== INIT SRV ======
[12/Jun/2017:13:44:03] ENGINE Bus STARTING
CherryPy Checker:
The Application mounted at '' has an empty config.
[12/Jun/2017:13:44:03] ENGINE Started monitor thread 'Autoreloader'.
[12/Jun/2017:13:44:03] ENGINE Started monitor thread '_TimeoutMonitor'.
C:\Program Files (x86)\Python36-32\lib\site-packages\cherrypy\process\servers.py:411: UserWarning: Unable to verify that the server is bound on 8080
  warnings.warn(msg)
[12/Jun/2017:13:44:08] ENGINE Serving on http://0.0.0.0:8080
[12/Jun/2017:13:44:08] ENGINE Bus STARTED
    # @cherrypy.tools.json_out()
    @cherrypy.tools.json_in()
    @cherrypy.tools.accept(media='application/json')
    def login(self, dataString):
        # cherrypy.request.method == "POST":
        self.addHeader()
        db = config()
        conn = psycopg2.connect(**db)
        cur = conn.cursor()
        is_logged_in = None
        bad_username = None
        bad_password = None
        json.load(dataString)
        # input_json = cherrypy.request.json()
        # dataString = input_json["dataString"]
        # - Login
        username_input = dataString[0]
        if username_input == cur.execute("SELECT username FROM users WHERE username = %s;", (username_input)):
            username_password = dataString[1]
            if username_password == cur.execute("SELECT password FROM users WHERE password = %s;", (username_password)):
                return is_logged_in
            else:
                return bad_password
        else:
            return bad_username
    @cherrypy.expose
    def index(self):
        self.addHeader()
        return "ok"
    var dataString = [];
    dataString.login = $("#login").val();
    dataString.password = $("#password").val();
    $.ajax({
      type: 'POST',
      url: 'http://0.0.0.0:8080/login',
      data: JSON.stringify(dataString),
      contentType: 'application/json',
      dataType: 'json',
      success: function(response) {
          console.log(response);
      error: function(response) {
          console.log(response);
    <link href="style.css" rel="stylesheet">
    <script src="http://code.jquery.com/jquery-2.0.3.min.js"></script>
    <script src="example.js"></script>
  </head>
<div class="login-page">
  <div class="form">
      <form action="/process_form/" method="post">
      <!-- id="myForm" class="login-form"> -->
        <input type="text" name="login" id="login" placeholder="login"/>
        <input type="password" name="password" id="password" placeholder="password"/>
        <button form="myForm" type="submit">Login</button>
        <p class="message">Not registered? <a href="#">Create an account</a></p>
      </form>
</body>
</html>
    
javascript
python
json
ajax
cherrypy
vakacjus
发布于 2017-06-12
1 个回答
Mike Scotty
发布于 2017-06-13
已采纳
0 人赞同

在你的login函数中，你将收到的AJAX数据不包含在参数dataString中（实际上，你不会得到任何参数），而是在cherrypy.request.json。
因此，你应该改变你的登录功能，如下所示。
@cherrypy.expose
@cherrypy.tools.json_in()
def login(self):
    json_obj = cherrypy.request.json