从 php 中的一个简单 Web 服务中,我生成一个 json,我想将其传递到另一个页面以加载数组。生成的json如下:
[{"x":1686736391,"y":19.06},{"x":1686746674,"y":19.06},{"x":1686767695,"y":19.68}]
其中“x”是 mysql 日期的 unix_timestamp,y 是整数值
在第二页上,我想使用canvasjs创建一个图表,然后运行以下代码:
<!DOCTYPE HTML>
<html>
<head>
<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<script src="https://canvasjs.com/assets/script/jquery-1.11.1.min.js"></script>
<script>
window.onload = function () {
var dataPoints = [];
var chart = new CanvasJS.Chart("chartContainer", {
animationEnabled: true,
title:{
text: "title"
},
axisY: {
title: "values",
titleFontSize: 24,
prefix: "$"
},
data: [{
type: "line",
yValueFormatString: "$#,##0.00",
dataPoints: dataPoints
}]
});
function addData(data) {
for (var i = 0; i < data.length; i++) {
dataPoints.push({
x: new Date(data[i][0]),
y: data[i][1]
});
}
console.log(dataPoints);
chart.render();
}
$.getJSON("https://mywebsitesite.com/webservice.php?id=1", addData);
}
</script>
</head>
<body>
<div id="chartContainer" style="height: 300px; width: 100%;"></div>
</body>
</html>
但是 console.log(dataPoints) 结果给了我 x 的无效数据和 y 的未定义数据:
我做错了什么? 提前谢谢