关于门市合同纠纷怎么解决是怎样规定的

结论：协商、调解、仲裁、诉讼。
解析：
任何违约行为都可能引起纠纷。对于合同纠纷案件，当事人可以通过下列途径向律师寻求帮助：                                                                                                                          1、和解。和解是由争议各方根据合同约定的违约责任和各方实际情况，自行协商而不需通过司法程序解决纠纷的方式。                                                                                  2、调解。调解通常由各方互谅互让为原则进行。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        3、仲裁。当事人不愿和解、调解或者和解、调解不成的，可根据仲裁协议向仲裁机构申请仲裁。                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  4、诉讼。如果当事人一方不愿仲裁,则不能采用仲裁的方式、而只能采用诉讼的方式来解决双方当事人之间的争议。所以，诉讼是解决合同纠纷的最终形式。若双方当事人达成和解或者调解，即可不进行仲裁。
法律依据：
《中华人民共和国民事诉讼法》第二十三条
因合同纠纷提起的诉讼，由被告住所地或者合同履行地人民法院管辖。