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  • 07.LoT.UI 前后台通用框架分解系列之——轻巧的文本编辑器

    LoT.UI汇总:http://www.cnblogs.com/dunitian/p/4822808.html#lotui

    上次说的是强大的百度编辑器 http://www.cnblogs.com/dunitian/p/5551701.html 这次说下简洁版而又不失功能的WangEditor

    先看看效果

    基本上常用功能都有了,下面说下完整的demo:

    前端案例:

    <!DOCTYPE html>
    <html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <title>WangEditor</title>
        <meta charset="utf-8" />
        <link href="Script/WangEditor/css/wangEditor.min.css" rel="stylesheet" />
    </head>
    <body>
        <div id="edit" style="min-height:20em"></div>
        <br />
        <input id="btn1" type="button" value="获取HTML" />  
        <input id="btn2" type="button" value="获取Text" />
        <div id="msg"></div>
        <script src="//cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script>
        <script src="Script/jquery-1.8.3.min.js"></script>
        <script src="Script/WangEditor/js/wangEditor.min.js"></script>
        <script type="text/javascript">        
            var editor = new wangEditor('edit');       
            // 上传图片路径
            editor.config.uploadImgUrl = '/Home/Upload';
            // 设置统一参数名
            editor.config.uploadImgFileName = 'file';       
            //编辑器创建
            editor.create();
    
            $('#btn1').click(function () {
                // 获取编辑器区域完整html代码
                var html = editor.$txt.html();
                $('#msg').html(html);
            });
    
            $('#btn2').click(function () {
                // 获取编辑器纯文本内容
                var text = editor.$txt.text();
                // 获取格式化后的纯文本
                //var formatText = editor.$txt.formatText();
                $('#msg').html(text);
            });
        </script>
    </body>
    </html>
    

    后端代码:(自己写的,如果有什么问题欢迎联系我)

    /// <summary>
            /// 图片上传
            /// </summary>
            /// <returns></returns>
            public ContentResult Upload(HttpPostedFileBase file)
            {
                if (file == null) { return Content("error|文件不能为空"); }
                if (file.ContentLength > 10485760) { return Content("error|文件10M以内"); }
                //如果是上传文件,再添加其他格式即可
                string filterStr = ".gif,.jpg,.jpeg,.bmp,.png";
                string fileExt = Path.GetExtension(file.FileName).ToLower();
                if (!filterStr.Contains(fileExt)) { return Content("error|文件后缀不对"); }
                //防止黑客恶意绕过,从根本上判断下文件后缀
                if (!file.InputStream.CheckingExt())
                {
                    //todo:一次危险记录
                    return Content("error|文件后缀不对");
                }
    
                //todo: md5判断一下文件是否已经上传过,如果已经上传直接返回 return Content(缩略图地址#sqlPath);
    
                string path = string.Format("{0}/{1}", "/lotFiles", DateTime.Now.ToString("yyyy-MM-dd"));
                string fileName = string.Format("{0}{1}", Guid.NewGuid().ToString("N"), fileExt);
                string sqlPath = string.Format("{0}/{1}", path, fileName);
                string dirPath = Request.MapPath(path);
                if (!Directory.Exists(dirPath)) { Directory.CreateDirectory(dirPath); }
                try
                {
                    //todo:未来写缩略图的代码
                    file.SaveAs(Path.Combine(dirPath, fileName));
                    //todo: 未来写存数据库的Code
                }
                catch { return Content("error|文件保存失败"); }
                return Content(string.Format("{0}#{1}", sqlPath, sqlPath));//第一个sqlPath以后换成缩略图的地址
            }
    /// <summary>
        /// 判断扩展名是否是指定类型---默认是判断图片格式,符合返回true(没有释放stream,请手动:file.InputStream.Dispose();)
        /// eg:图片+压缩+文档:"7173", "255216", "6677", "13780", "8297", "55122", "8075", "208207"
        /// eg:img,"7173", "255216", "6677", "13780" //gif  //jpg  //bmp //png
        /// eg:file,"8297", "55122", "8075", "208207" //rar //7z //zip + 文档系列
        /// </summary>
        /// <param name="stream">文件流</param>
        /// <param name="fileTypes">文件扩展名</param>
        /// <returns></returns>
        public static bool CheckingExt(this Stream stream, params string[] fileTypes)
        {
            if (fileTypes == null || fileTypes.Length == 0) { fileTypes = new string[] { "7173", "255216", "6677", "13780" }; }
            bool result = false;
            string fileclass = "";
    
            #region 读取头两个字节
            var reader = new BinaryReader(stream);
            byte[] buff = new byte[2];
            try
            {
                reader.Read(buff, 0, 2);//读取每个文件的头两个字节
                fileclass = buff[0].ToString() + buff[1].ToString();
            }
            catch (System.Exception ex) { stream.Dispose(); reader.Dispose(); return false; }
            #endregion
    
            #region 校验
            for (int i = 0; i < fileTypes.Length; i++)
            {
                if (fileclass == fileTypes[i])
                {
                    result = true;
                    break;
                }
            }
            #endregion
            return result;
        }
    

    完整demo:https://github.com/dunitian/LoTCodeBase/tree/master/NetCode/3.常用技能/03.Editor/03.WangEditor

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  • 原文地址:https://www.cnblogs.com/dunitian/p/5640053.html
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