Question

我知道我可以使用set来点击Firebase，但我想使用AJAX，所以我尝试了下面的代码。当我在浏览器中加载test.html时，控制台会说 -

XMLHttpRequest无法加载https://jleiphonebook.firebaseio.com/json。请求的资源上不存在“Access-Control-Allow-Origin”标头。因此不允许原点'null'访问。响应的HTTP状态代码为405。

// text.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Firebase Test</title>
    <script src='https://cdn.firebase.com/js/client/2.2.1/firebase.js'></script>
  </head>
  <body>
    <div id="hi"></div>
    <script   src="https://code.jquery.com/jquery-1.12.2.min.js"   integrity="sha256-lZFHibXzMHo3GGeehn1hudTAP3Sc0uKXBXAzHX1sjtk="   crossorigin="anonymous"></script>
    <script>
      $(document).ready(function () {
        var param = {lastName: "Doe", firstName: "John"};
        $.ajax({
          url: 'https://jleiphonebook.firebaseio.com/json',
          type: "POST",
          data: param,
          success: function () {
            alert("success");
          }
        });
      });
    </script>
  </body>
</html>

// firebase规则

{
    "rules": {
        ".read": true,
        ".write": true
    }
}

Answer 1

Firebase希望正文为JSON字符串，因此您需要对其进行字符串化：

$(document).ready(function () {
   var param = {lastName: "Doe", firstName: "John"};

   $.ajax({
     url: 'https://jleiphonebook.firebaseio.com/.json',
     type: "POST",
     data: JSON.stringify(param),
     success: function () {
       alert("success");
     },
     error: function(error) {
       alert("error: "+error);
     }
   });
 });

顺便提一下：

$.post('https://jleiphonebook.firebaseio.com/.json',
  JSON.stringify(param),
  function () {
    alert("success");
  }
);

如何设置简单的firebase ajax请求？

1 个答案: