如何使用JavaScript和Node.Js在Fusion图表上传递MySQL数据？
这里我上传了两个截图。我想在此仪表中显示MySQL数据。我正在使用JavaScript和Node.Js进行MySQL数据库连接如何使用JavaScript和Node.Js在Fusion图表上传递MySQL数据？,javascript,mysql,node.js,fusioncharts,Javascript,Mysql,Node.js,Fusioncharts,这里我上传了两个截图。我想在此仪表中显示MySQL数据。我正在使用JavaScript和Node.Js进行MySQL数据库连接 <script type="text/javascript"> let fusionCharts= document.querySelector('#chart-container') FusionCharts.ready(function() { var fusionCharts = new Fusion
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});
下面是一个片段，您可以使用上面的技术来渲染FusionCharts
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});
const mysql = require("mysql");
const express = require("express");
const bodyparser = require("body-parser");
const path = require("path");
var app = express();
//Configuring express server
app.use(bodyparser.json());
//MySQL details
var mysqlConnection = mysql.createConnection({
host: "localhost",
user: "root",
password: "",
database: "fusioncharts_jspsample",
multipleStatements: true
});
mysqlConnection.connect(err => {
if (!err) console.log("Connection Established Successfully");
else console.log("Connection Failed!" + JSON.stringify(err, undefined, 2));
});
//Establish the server connection
//PORT ENVIRONMENT VARIABLE
const port = process.env.PORT || 8080;
app.listen(port, () => console.log(`Listening on port ${port}..`));
app.use(express.static("public"));
app.get("/", (req, res) => {
res.sendFile(path.join(__dirname + "/index.html"));
});
app.get("/api/number_of_visitor/:id", (req, res) => {
mysqlConnection.query(
"SELECT * FROM number_of_visitor WHERE id = ?",
[req.params.id],
(err, rows, fields) => {
if (!err) {
res.json(rows);
} else console.log(err);
}
);
});
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Document</title>
<script src="https://cdnjs.cloudflare.com/ajax/libs/axios/0.19.2/axios.min.js"></script>
<script src="https://cdn.fusioncharts.com/fusioncharts/latest/fusioncharts.js"></script>
<script src="https://cdn.fusioncharts.com/fusioncharts/latest/themes/fusioncharts.theme.fusion.js"></script>
</head>
<body>
<h1>Angular Gauge</h1>
<script type="text/javascript">
async function fetchData(id = 1) {
const { data } = await axios.get(
`http://localhost:8080/api/number_of_visitor/${id}`
);
return data;
}
Promise.all([fetchData()]).then(v => {
console.log(v);
let val = v[0][0].bakersfield_central;
const ds = {
chart: {
caption: "Customer Satisfaction Score",
subcaption: "Last week",
lowerLimit: "0",
upperLimit: "22500",
lowerLimitDisplay: "Bad",
upperLimitDisplay: "Good",
showValue: "1",
valueBelowPivot: "1",
theme: "fusion"
},
colorRange: {
color: [
{
minValue: "0",
maxValue: "7500",
code: "#e44a00"
},
{
minValue: "7500",
maxValue: "15000",
code: "#f8bd19"
},
{
minValue: "15000",
maxValue: "22500",
code: "#6baa01"
}
]
},
dials: {
dial: [
{
value: val
}
]
}
};
FusionCharts.ready(function() {
var cSatScoreChart = new FusionCharts({
type: "angulargauge",
renderAt: "container",
width: "400",
height: "250",
dataFormat: "json",
dataSource: ds
}).render();
});
});
</script>
<div id="container"></div>
文件
角规
异步函数fetchData（id=1）{
const{data}=wait axios.get(
`http://localhost:8080/api/number_of_visitor/${id}`
);
返回数据；
}
Promise.all（[fetchData（）]）。然后（v=>{
控制台日志（v）；
设val=v[0][0]。贝克斯菲尔德中央大学；
常数ds={
图表：{
描述：“客户满意度得分”，
子选项：“上周”，
lowerLimit:“0”，
上限：“22500”，
lowerLimitDisplay：“坏”，
屏幕显示：“好”，
showValue:“1”，
valueBelowPivot:“1”，
主题：“融合”
},
颜色范围：{
颜色：[
{
最小值：“0”，
最大值：“7500”，
代码：“e44a00”
},
{
minValue:“7500”，
最大值：“15000”，
代码：“f8bd19”
},
{
minValue:“15000”，
最大值：“22500”，
代码：“6baa01”
}
]
},
拨号盘：{
拨号：[
{
值：val
}
]
}
};
FusionCharts.ready（函数（）{
var cSatScoreChart=新FusionCharts({
类型：“角度规”，
renderAt：“容器”，
宽度：“400”，
高度：“250”，
数据格式：“json”，
数据源：ds
}).render（）；
});
});
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});
如果您仍然面临问题，这里是一个演示（包括SQL文件）发布代码，而不是代码的图像。问题很简单：您没有设置任何路由。您的节点代码只是建立两个连接，将内容打印到控制台，然后退出。你需要按照这个基本的方法建立一个发送回mysql数据的路由，然后在你的html页面中请求相应的URL。我已经上传了代码。现在请检查一下。实际上，我是第一次这样做。所以，如果你能帮我写代码，那就更好了。我已经看过你的代码了。就像我说的，你没有在任何地方使用express。你需要设置路线。使用GET-route from，而不是发送回文本，用于发送回mySQL数据。请阅读-总结是，这不是解决志愿者问题的理想方法，可能会对获取答案产生反作用。请不要将此添加到您的问题中。
<script type="text/javascript">
let fusionCharts= document.querySelector('#chart-container')
FusionCharts.ready(function() {
var fusionCharts = new FusionCharts("chart-container",{
"type": "angulargauge",
"renderAt": "chart-container",
"width": "450",
"height": "250",
"dataFormat": "json",
"dataSource": {
// Chart Configuration
"chart": {
"caption": "",
"lowerLimit": "0",
"upperLimit": "100",
"showValue": "1",
"numberSuffix": "%",
"theme": "fusion",
"showToolTip": "0"
},
// Chart Data
"colorRange": {
"color": [{
"minValue": "0",
"maxValue": "50",
"code": "#F2726F"
}, {
"minValue": "50",
"maxValue": "75",
"code": "#FFC533"
}, {
"minValue": "75",
"maxValue": "100",
"code": "#62B58F"
}]
},
"dials": {
"dial": [{
"value": "80",
}]
}
}
});
fusionCharts.render();
});