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编程就像搭积木，少了任何一个就拼接不起来，所有积木都找到就只剩下调试。
一、echarts 获取图片方法getDataURL
详细配置：https://www.echartsjs.com/zh/api.html#echartsInstance.getDataURL
var element = document.getElementById("元素id");
var chart = echarts.init(element);
var option={} //省略
chart.setOption(option);
var picInfo = chart.getDataURL(); // 获取 base64 位格式的图片
// console.log("echarts.getDataURL", picInfo);
思路来源：
https://www.cnblogs.com/zhang1f/p/11093779.html
https://jingyan.baidu.com/article/6b182309dcd748ba59e15974.html
二、 实现导出word
思路来源： https://bbs.csdn.net/topics/392294267
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width" />
<title>EChart柱状图</title>
<script src="jquery-1.10.2.min.js"></script>
<script src="FileSaver.js"></script>
<script src="jquery.wordexport.js"></script>
</head>
<body>
<a class="word-export" href="javascript:void(0)"> 导出 </a>
<div id="page-content" >
<font size="3" color="red">aaaaa！！！</font>
<div style="width:30px;height:30px;background-color:red">bbbb<div>
</div>
</body>
<script type="text/javascript">
jQuery(document).ready(function($) {
$("a.word-export").click(function(event) {
$("#page-content").wordExport("aaa");
});
});
</script>
</html>
核心代码：
<script src="jquery-1.10.2.min.js"></script>
<script src="FileSaver.js"></script>
<script src="jquery.wordexport.js"></script>
//输出word
$("#page-content").wordExport("aaa");
在哪下载？
https://github.com/Jasmine1227/jquery.wordexport.js.git
下载链接来自文章 https://www.cnblogs.com/jas0203/p/9205607.html
三、 Ueditor 生成 word
就在Ueditor 上一级 添加一个
<div id="myid"> <div>
然后 $("#id").wordExport("aaa");
四、 Ueditor图文 + echarts 图 生成 word
同上 在他们两个的上一级加一点 id。
五 、Ueditor 中显示 echarts 中生成的图片
只需要 在 Ueditor 中加一个 image，然后把base64 位数据赋值给src 属性就好了！
<image id ="imgID" src=" Base64位图片数据" style=“这里还可以调节样式”>
也可以参考 一种的配置调节base64位图片样式。
同时可以隐藏 echarts 图表 ，让用户开起来 就是在一个网页版的word里生成了文章和图片。
六 百度搜索：
jQuery-Word-Export
jquery.wordexport.js
还有很多可以拓展学习的内容！！
七、拓展思考：
生成pdf ？
查看pdf ：pdf.js https://www.cnblogs.com/hao-1234-1234/p/8353593.html
生成excel：
jquery.table2excel.js
Echarts 数据视图 生成Excel的方法
https://www.cnblogs.com/hao-1234-1234/p/9257043.html
后端生成 word、excel、pdf、图片？
后端 生成 带有echarts 图片的word？
八、其它没用上的：
1、base64转图片，网站 imgbase64.duoshitong.com
2、base64转图片，代码
https://www.cnblogs.com/ryze/p/Ryze1.html
function dataURLtoFile(dataurl, filename = 'file') {
let arr = dataurl.split(',')
let mime = arr[0].match(/:(.*?);/)[1]
let suffix = mime.split('/')[1]
let bstr = atob(arr[1])
let n = bstr.length
let u8arr = new Uint8Array(n)
while (n--) {
u8arr[n] = bstr.charCodeAt(n)
}
return new File([u8arr], `${filename}.${suffix}`, {
type: mime
})
}
var base64Img = imgDataUrl // base64编码的图片
var imgFile = dataURLtoFile(base64Img)
console.log('imgFile====>', imgFile)
JS 将 base64编码的图片转化为图片文件 （核心代码同上）
https://www.jianshu.com/p/e26aaca7e201
function dataURLtoFile(dataurl, filename = 'file') {
let arr = dataurl.split(',')
let mime = arr[0].match(/:(.*?);/)[1]
let suffix = mime.split('/')[1]
let bstr = atob(arr[1])
let n = bstr.length
let u8arr = new Uint8Array(n)
while (n--) {
u8arr[n] = bstr.charCodeAt(n)
}
return new File([u8arr], `${filename}.${suffix}`, {
type: mime
})
}
// base64编码的图片
var base64Img = 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';
// 转成图片文件
var imgFile = dataURLtoFile(base64Img);
## 如果想要预览转出来的图片可以：
const fileReader = new FileReader(); // 创建一个 fileReader
fileReader.readAsDataURL(imgFile); // 将生成的图片文件读到 fileReader中
const img = new Image();
img.src = fileReader.result; // 将 fileReader.result 设置为 图片的 src
document.body.appendChild(img);
还可以继续百度 base64
| 
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发表于 2021-7-17 14:31:41
