CKEditor与dotnetcore实现图片上传功能


            本文实例为大家分享了CKEditor与dotnetcore实现图片上传的具体代码，供大家参考，具体内容如下

CKEditor的使用

1.引入js库





<script src="http://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：http://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: 'http://cdn.mathjax.org/mathjax/2.6-latest/MathJax.js?config=TeX-AMS_HTML',  

   codeSnippet_theme: 'ir_black',

   height: 450,   

   contentsCss: ['http://cdn.ckeditor.com/4.6.1/standard-all/contents.css'],   

   format_tags: 'p;h1;h2;h3;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";





配置完成即可使用图片上传功能



 以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持中文源码网。