chrome console发送post

var url = "http://127.0.0.1:9090/index.php/a/create";

var params = "username=test&password=111111";

var xhr = new XMLHttpRequest();

xhr.open("POST", url, true);

xhr.setRequestHeader("Content-type","application/x-www-form-urlencoded");

xhr.onload = function (e) {

if (xhr.readyState === 4) {

if (xhr.status === 200) {

console.log(xhr.responseText);

} else {

console.error(xhr.statusText);

}

}

};

xhr.onerror = function (e) {

console.error(xhr.statusText);

};

xhr.send(params);