javascript - 如何从 JavaScript 获取数据到 Controller 并将其存储在数据库中

Question

我想获取从此 JavaScript 到 Controller 的位置并将其存储在数据库中:

var currPosition;

navigator.geolocation.getCurrentPosition(function(position) {
  updatePosition(position);
  setInterval(function() {
    var lat = currPosition.coords.latitude;
    var lng = currPosition.coords.longitude;
    jQuery.ajax({
      type: "POST",
      url: "myURL/location.php",
      data: 'x=' + lat + '&y=' + lng,
      cache: false
    });
  }, 1000);
}, errorCallback);

var watchID = navigator.geolocation.watchPosition(function(position) {
  updatePosition(position);
});

function updatePosition(position) {
  currPosition = position;
}

function errorCallback(error) {
  var msg = "Can't get your location. Error = ";
  if (error.code == 1)
    msg += "PERMISSION_DENIED";
  else if (error.code == 2)
    msg += "POSITION_UNAVAILABLE";
  else if (error.code == 3)
    msg += "TIMEOUT";
  msg += ", msg = " + error.message;
  alert(msg);
}

Answer 1

使用 .ajax() 发送帖子:

// ....
let formData = new FormData();
const lat = currPosition.coords.latitude;
const lng = currPosition.coords.longitude;
formData.append("x", lat);
formData.append("y", y lng;
$.ajax({
    url: "myURL/location.php", // update this with you url
    dataType: 'text',
    cache: false,
    contentType: false,
    processData: false,
    data: formData,
    type: 'POST',
    success: function(data){
        const response = jQuery.parseJSON(data);
    }
});
//....

接收codeigniter中的发布数据:

$x = $this->input->post('x');
$y = $this->input->post('y');