direct online code <script type="text/javascript">
var timename = null;
function show1(){
timename=setInterval(function cj(){
$.ajax({
type: "GET",
url: "/opsmanager/server/diary",
success:function(json){
console.log(json);
$("#textareaid").val(json);
},
error:function(){
clearInterval(timename);
}
});},100);
}
function show2(){
clearInterval(timename);
}
</script>
</head>
<body>
<div style="padding:15px 25px;width:1200px;height: 830px;background-color: white;">
<form>
<input type="button" onclick="show1()" value="查询">
<input type="button" onclick="show2()" value="停止">
<fieldset>
<legend>Configuration file modification</legend>
<div style="float: left;">
<textarea rows="20" cols="100" name="textareaid" id="textareaid">
</textarea>
</div>
</fieldset>
</form> Set a button to turn the timer on and off timename=setInterval(function a(){}, 1000) The front a is the program to be executed periodically, the latter 1000 is how often to execute it, and show2() is the stop ding timer