jquery发送post请求

function AjaxSubmit3() {

            //jquery发送post请求

            $.ajax({

                url: '/app04/ajax1/',

                type: 'POST',

                data: {'p': 123},

                success:function () {

                }

            })

        }

原生发送post请求

 function AjaxSubmit4() {

        //原生发送post请求

            var xhr = new XMLHttpRequest();

            xhr.onreadystatechange = function () {

                if (xhr.readyState == 4){

                    console.log(xhr.responseText);

                }

            }

            xhr.open('POST', '/app04/ajax1/');

             //需要加请求头, 设置请求头

            xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded; charset-UTF-8');

            xhr.send('p=123');

        }