使用python连接到局域网数据库

Question

I have set up xampp to both of my PCs with success. When I try to connect to the localhost of PC 1 while I am on PC 1 through python, everything works fine. But when I am trying to connect to PC 2 xampp sql I cant get a connection. I have cofigured xampp to accept connections from other devices in the lan and I can access it perfectly through my web browser but not from my python programm.

This is my code:

def GetResults(self):
        try:
            cnx = mysql.connector.connect(user='test', password= '123456', host='paraliass-pc', port='3306', database='test')
            cursor = cnx.cursor()
        except mysql.connector.Error as err:
            if err.errno == errorcode.ER_ACCESS_DENIED_ERROR:
                print("Something is wrong with your username or password")
                self.statusBar().showMessage("Wrong Username or Password")
            elif err.errno == errorcode.ER_BAD_DB_ERROR:
                print("Database does not exist")
                self.statusBar().showMessage("Database does not exist")

        if cnx :               
            print("Connected")
            self.statusBar().showMessage("Connected")

        cursor = cnx.cursor()
        cursor.execute("SELECT * FROM STAFF WHERE NAME LIKE '" + self.textEdit.text() + "%' OR SURNAME LIKE '" + self.textEdit.text() + "%'" + "OR RANK LIKE '" + self.textEdit.text() + "%'")

I am getting this error which does not appear when I am connecting to the same pc I am running the program on

UnboundLocalError: local variable 'cnx' referenced before assignment

By the way, if i change the username or password on the localhost to be wrong on purpose, I get the same error.

Answer 1

You should consider granting privileges to connect remotely to MySQL, and bind MySQL to use the IP address and port of your choosing. By default, MySQL will only listen for connections via localhost/socket.