javascript - 如何获取 jQuery.get "Data"中的特定元素

Question

所以我有数据(data.html)

$(document).ready(function(){
    setTimeout(function(){
        $.get("/computers/{{computer.id}}/live", function(data){
            console.log(data)
        });
    }, 5000);
});

问题是“data”是“/computers/{{computer.id}}/live”的整个源代码我想在html中获取特定的id

/computers/{{computer.id}}/live (HTML file):

<script type="text/javascript" src="{{ url_for('static', filename='jquery.js') }}"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">

<script>
 $(document).ready(function(){
      setTimeout(function(){
            $('#id').load("")
        }, "{{timer}}");
      });
</script>
<div id="id">
<span class="badge badge-light"  id ="cpu">{{computer.cpu_usage_procentage}}</span>
<span class="badge badge-light"  id ="memory">{{computer.memory_usage_procentage}}</span>
</div>

如何选择cpu和内存 id和console.log它们的值(当然在data.html中)或更具体地将它们放入 data.html页面

Answer 1

您可以使用 jQuery 默认函数解析 html 来完成此操作:

 var html = `<div id="id">
<span class="badge badge-light"  id ="cpu">44%</span>
<span class="badge badge-light"  id ="memory">66%</span>
</div>`;
var parsed = $(html);

var cpuUsage = parsed.find("#cpu").text();
var memUsage = parsed.find("#memory").text();
console.log(`CPU usage ${cpuUsage} - Mem usage ${memUsage}`);

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

您还可以在服务器中创建 API 以提供 JSON 格式的信息:

/computers/{{computer.id}}/livejson:

{
  cpuUsage: "{{computer.cpu_usage_procentage}}",
  memUsage: "{{computer.memory_usage_procentage}}"
}

在客户端:

 $.get("/computers/{{computer.id}}/livejson", function(json){
    var data = JSON.parse(json);
    console.log(`CPU usage ${data.cpuUsage} - Mem usage ${data.memUsage}`);
 });