ckeditor在jsp下增加图片上传功能
    ckeditor配合ckfinder是可以实现图片上传功能的，但是只有php和asp支持，找了几天资料，终于成功在jsp上也实现了这个功能。
    参考资料:http://blog.163.com/ytrtfhj@126/blog/static/890531092010226023136/

   先来效果图 



    首先在编辑器完全生成后调用addUploadButton(editor)函数，传入编辑器变量，建议在CKEDITOR.replace之后直接使用.

function addUploadButton(editor){
CKEDITOR.on('dialogDefinition', function( ev ){

               var dialogName = ev.data.name;

               var dialogDefinition = ev.data.definition;

               if ( dialogName == 'image' ){

                   var infoTab = dialogDefinition.getContents( 'info' );

                   infoTab.add({

                       type : 'button',

                       id : 'upload_image',

                       align : 'center',

                       label : '上传',

                       onClick : function( evt ){

                           var thisDialog = this.getDialog();

                           var txtUrlObj = thisDialog.getContentElement('info', 'txtUrl');

                           var txtUrlId = txtUrlObj.getInputElement().$.id;

                           addUploadImage(txtUrlId);

                       }

                   }, 'browse'); //place front of the browser button

               }

           });

       }
function addUploadImage(theURLElementId){

           var uploadUrl = "upload.jsp"; //这是我自己的处理文件/图片上传的页面URL

           var imgUrl = win