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这篇文章将为大家详细讲解有关使用CKEditor与dotnetcore怎么实现一个图片上传功能,文章内容质量较高,因此小编分享给大家做个参考,希望大家阅读完这篇文章后对相关知识有一定的了解。
CKEditor的使用
1.引入js库
<script src="https://cdn.ckeditor.com/4.6.1/standard-all/ckeditor.js"></script>
2.定义一个textarea标签
<textarea id="editor"> </textarea>
3.用CkEditor替换textarea即可使用基本功能
CKEDITOR.replace('editor');
4.配置CkEditor
添加图片上传,代码插入工具
CKEDITOR.replace('editor-box', { //GitHub地址:https://github.com/ckeditor toolbar: [ { name: 'document', items: ['Source'] }, { name: 'basicstyles', items: ['Bold', 'Italic'] }, { name: 'paragraph', items: ['NumberedList', 'BulletedList', '-', 'Outdent', 'Indent', '-', 'Blockquote'] }, { name: 'links', items: ['Link', 'Unlink'] }, { name: 'insert', items: ['Image','CodeSnippet'] }, { name: 'styles', items: ['Format', 'Styles'] } ], filebrowserImageUploadUrl: '/Blogs/UploadImageUrl', //配置图片上传后台Url customConfig: '', extraPlugins: 'codesnippet,image2,uploadimage', removePlugins: 'image', //mathJaxLib: 'https://cdn.mathjax.org/mathjax/2.6-latest/MathJax.js?config=TeX-AMS_HTML', codeSnippet_theme: 'ir_black', height: 450, contentsCss: ['https://cdn.ckeditor.com/4.6.1/standard-all/contents.css'], format_tags: 'p;h2;h3;h4;pre', removeDialogTabs: 'image:advanced;link:advanced;link:target', stylesSet: [ /* Inline Styles */ { name: 'Marker', element: 'span', attributes: { 'class': 'marker' } }, { name: 'Cited Work', element: 'cite' }, { name: 'Inline Quotation', element: 'q' }, /* Object Styles */ { name: 'Special Container', element: 'div', styles: { padding: '5px 10px', background: '#eee', border: '1px solid #ccc' } }, { name: 'Compact table', element: 'table', attributes: { cellpadding: '5', cellspacing: '0', border: '1', bordercolor: '#ccc' }, styles: { 'border-collapse': 'collapse' } }, { name: 'Borderless Table', element: 'table', styles: { 'border-style': 'hidden', 'background-color': '#E6E6FA' } }, { name: 'Square Bulleted List', element: 'ul', styles: { 'list-style-type': 'square' } }, /* Widget Styles */ { name: 'Illustration', type: 'widget', widget: 'image', attributes: { 'class': 'image-illustration' } }, { name: 'Featured snippet', type: 'widget', widget: 'codeSnippet', attributes: { 'class': 'code-featured' } }, { name: 'Featured formula', type: 'widget', widget: 'mathjax', attributes: { 'class': 'math-featured' } } ] });
5.后台接收图片
/// <summary> /// 图片上传 /// </summary> /// <param name="env"></param> /// <returns></returns> public async Task<IActionResult> UploadImageUrl([FromServices]IHostingEnvironment env) { // CKEditor提交的很重要的一个参数 string callback = Request.Query["CKEditorFuncNum"]; var form = Request.Form; var img = form.Files[0]; //获取图片 string fileName = img.FileName; var openReadStream = img.OpenReadStream(); byte[] buff = new byte[openReadStream.Length]; await openReadStream.ReadAsync(buff, 0, buff.Length); string filenameGuid = Guid.NewGuid().ToString(); var bowerPath = PathUtils.GetSavePath(filenameGuid, true) + ".jpg";//获取到图片保存的路径,这边根据自己的实现 var savePath = Path.Combine(env.WebRootPath, bowerPath); using (FileStream fs = new FileStream(savePath, FileMode.Create)) { await fs.WriteAsync(buff, 0, buff.Length); //服务器返回JavaScript脚本 string result = $"<script type=\"text/javascript\">window.parent.CKEDITOR.tools.callFunction(\"{callback}\", \"{"/"+bowerPath}\", \"\");</script>"; Response.ContentType = "text/html;charset=UTF-8"; return Content(result); } }
6.注意
服务器返回需要加上这个,否则会遇到前端页面不执行返回的JavaScript脚本的问题
Response.ContentType = "text/html;charset=UTF-8";
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