CKEditor实现图片上传

本人用的CKEditor版本为4.3 CKEditor配置和部署参考CKEditor4.x部署和配置。

CKEditor编辑器的工具栏中初始的时候应该是这样子的，没有图片上传按钮

并且预览中有一堆火星文，可以修改相应配置删除它。

第一种方法：打开ckeditor/plugins/image/dialogs/image.js文件，搜索“b.config.image_previewText”，(b.config.image_previewText||'')单引号中的内容全删了，注意别删多了。(由于ckeditor的很多js文件都是压缩过的，格式很难看，很容易删错，所以不推荐此种方法)

第二种方法：打开config.js文件，加入下面一句话

config.image_previewText=' '; //预览区域显示内容

下面研究图片上传

要想出现上传按钮，两种方法

第一种：还是刚才那个image.js
搜索“upload”可以找到这一段 id:'Upload',hidden:true，而我使用的4.3的是

id:"Upload",hidden:!0，反正改为false就行了，(遗憾的是此种方法对我这个版本不起作用)

第二种：打开config.js文件，加入下面一句话

config.filebrowserImageUploadUrl= "admin/UserArticleFileUpload.do"; //待会要上传的action或servlet

OK现在基本上是下面这个样子的了

上面的只是一个上传页面。也就相当于一个HTML的form表单，

要配置点击"上传到服务器上"按钮后请求的Action。已在ckeditor/config.js中配置。

就是上面的 config.filebrowserImageUploadUrl = "admin/UserArticleFileUpload.do";

可使用chrome审查元素查看代码

接下来就是action中的上传方法：

public class ImageUpload extends WebSupport {  
    private File upload;       //文件  
    private String uploadContentType;   //文件类型  
    private String uploadFileName;       //文件名  
    /** 
     * 图片上传 
     * @return 
     * @throws IOException  
     */  
    public String fileUpload() throws IOException{  
        //HttpServletResponse response = ServletActionContext.getResponse();  
        getResponse().setCharacterEncoding("utf-8");  
        PrintWriter out =  getResponse().getWriter();    
        // CKEditor提交的很重要的一个参数    
        String callback = getRequest().getParameter("CKEditorFuncNum");  
        String expandedName = "";  //文件扩展名    
        if (uploadContentType.equals("image/pjpeg") || uploadContentType.equals("image/jpeg")) {    
            //IE6上传jpg图片的headimageContentType是image/pjpeg，而IE9以及火狐上传的jpg图片是image/jpeg    
            expandedName = ".jpg";    
        }else if(uploadContentType.equals("image/png") || uploadContentType.equals("image/x-png")){    
            //IE6上传的png图片的headimageContentType是"image/x-png"    
            expandedName = ".png";    
        }else if(uploadContentType.equals("image/gif")){    
            expandedName = ".gif";    
        }else if(uploadContentType.equals("image/bmp")){    
            expandedName = ".bmp";    
        }else{    
            out.println("<script type="text/javascript">");      
            out.println("window.parent.CKEDITOR.tools.callFunction(" + callback + ",''," + "'文件格式不正确（必须为.jpg/.gif/.bmp/.png文件）');");     
            out.println("</script>");    
            return null;    
        }    
        if(upload.length() > 600*1024){    
            out.println("<script type="text/javascript">");      
            out.println("window.parent.CKEDITOR.tools.callFunction(" + callback + ",''," + "'文件大小不得大于600k');");     
            out.println("</script>");    
            return null;    
        }    
            
        InputStream is = new FileInputStream(upload);    
        String uploadPath = ServletActionContext.getServletContext().getRealPath("/img/uploadImg");    
        String fileName = java.util.UUID.randomUUID().toString();  //采用时间+UUID的方式随即命名    
        fileName += expandedName;    
        File file = new File(uploadPath);  
        if(!file.exists()){  //如果路径不存在，创建  
            file.mkdirs();  
        }  
        File toFile = new File(uploadPath, fileName);    
        OutputStream os = new FileOutputStream(toFile);       
        byte[] buffer = new byte[1024];       
        int length = 0;    
        while ((length = is.read(buffer)) > 0) {       
            os.write(buffer, 0, length);       
        }       
        is.close();    
        os.close();    
            
        // 返回"图像"选项卡并显示图片    
        out.println("<script type="text/javascript">");      
        out.println("window.parent.CKEDITOR.tools.callFunction(" + callback + ",'" + "/eHomePlus/img/uploadImg" + fileName + "','')");      
        out.println("</script>");    
        return null;  
    }  
    public File getUpload() {  
        return upload;  
    }  
    public void setUpload(File upload) {  
        this.upload = upload;  
    }  
    public String getUploadContentType() {  
        return uploadContentType;  
    }  
    public void setUploadContentType(String uploadContentType) {  
        this.uploadContentType = uploadContentType;  
    }  
    public String getUploadFileName() {  
        return uploadFileName;  
    }  
    public void setUploadFileName(String uploadFileName) {  
        this.uploadFileName = uploadFileName;  
    }  
}

 config.js

CKEDITOR.editorConfig = function( config ) {  
    config.filebrowserImageUploadUrl = "admin/UserArticleFileUpload.do"; //固定路径  
    config.image_previewText=' '; //预览区域显示内容   
};

最后上传图片成功

本文转自：http://blog.csdn.net/itmyhome1990/article/details/17264627

参考文章：http://blog.csdn.net/mydwr/article/details/8669594