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在Action中添加方法

[HttpPost] 

125 public ActionResult UploadImage() 

126 { 

127 string savePath = "../Content/Images/"; 

128 string saveUrl = "http://www.cnblogs.com/Content/Images/"; 

129 string fileTypes = "gif,jpg,jpeg,png,bmp"; 

130 int maxSize = 1000000; 

131 

132 Hashtable hash = new Hashtable(); 

133 

134 HttpPostedFileBase file = Request.Files["imgFile"]; 

135 if (file == null) 

136 { 

137 hash = new Hashtable(); 

138 hash["error"] = 0; 

139 hash["url"] = "请选择文件"; 

140 return Json(hash); 

141 } 

142 

143 string dirPath = Server.MapPath(savePath); 

144 if (!Directory.Exists(dirPath)) 

145 { 

146 hash = new Hashtable(); 

147 hash["error"] = 0; 

148 hash["url"] = "上传目录不存在"; 

149 return Json(hash); 

150 } 

151 

152 string fileName = file.FileName; 

153 string fileExt = Path.GetExtension(fileName).ToLower(); 

154 

155 ArrayList fileTypeList = ArrayList.Adapter(fileTypes.Split(',')); 

156 

157 if (file.InputStream == null || file.InputStream.Length > maxSize) 

158 { 

159 hash = new Hashtable(); 

160 hash["error"] = 0; 

161 hash["url"] = "上传文件大小超过限制"; 

162 return Json(hash); 

163 } 

164 

165 if (string.IsNullOrEmpty(fileExt) || Array.IndexOf(fileTypes.Split(','), fileExt.Substring(1).ToLower()) == -1) 

166 { 

167 hash = new Hashtable(); 

168 hash["error"] = 0; 

169 hash["url"] = "上传文件扩展名是不允许的扩展名"; 

170 return Json(hash); 

171 } 

172 

173 string newFileName = DateTime.Now.ToString("yyyyMMddHHmmss_ffff", DateTimeFormatInfo.InvariantInfo) + fileExt; 

174 string filePath = dirPath + newFileName; 

175 file.SaveAs(filePath); 

176 string fileUrl = saveUrl + newFileName; 

177 

178 hash = new Hashtable(); 

179 hash["error"] = 0; 

180 hash["url"] = fileUrl; 

181 

182 return Json(hash, "text/html;charset=UTF-8");; 

183 } 

页面中配置为：

        KE.show({
            id: 'editor',
            imageUploadJson: '/Blog/UploadImage'
        });

关键还是在于 Json的格式

CNBLOG:http://www.cnblogs.com/upupto/archive/2010/08/24/1807202.html

方法可用，不过我已经修改过代码了！

非常感谢！