java如何使用ckeditor实现图片上传功能，具体内容如下
1.根据实际需要下载指定的ckeditor
2.删除文件ckeditor/plugins/image/dialogs/image.js预览框中文本内容，并修改hidden属性值为显示上传选项卡
删除image.js中包含在双引号中的上述文本
将image.js中的hidden属性值改为0
3.修改ckeditor/config.js文件，配置“上传到服务器”按钮调用的controller接口
4.“上传到服务器”按钮调用的controller级别的接口
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@controller@requestmapping("publicutil") public class publicutilcontroller { @requestmapping(value = "uploadimage") private void uploadimage(httpservletrequest request, httpservletresponse response, httpsession session,@requestparam multipartfile[] upload) { response.setcharacterencoding("utf-8"); printwriter out=null; try { out = response.getwriter(); } catch (ioexception e1) { logger.error("response.getwriter()异常="+e1); e1.printstacktrace(); } string callback = request.getparameter("ckeditorfuncnum"); // 获得response,request map<string, object> m = new hashmap<string, object>(); if (!servletfileupload.ismultipartcontent(request)) { m.put("error", 1); m.put("message", "请选择文件!"); //return m; logger.info("请选择文件!"); } string originalfilename=null;//上传的图片文件名 string fileextensionname=null;//上传图片的文件扩展名 for (multipartfile file : upload) { if (file.getsize()> 10*1024* 1024) { out.println("<script type=\"text/javascript\">"); out.println("window.parent.ckeditor.tools.callfunction(" + callback + ",''," + "'文件大小不得大于10m');"); out.println("</script>"); } originalfilename=file.getoriginalfilename(); logger.info("上传的图片文件名="+originalfilename); fileextensionname= originalfilename.substring( originalfilename.lastindexof(".") ,originalfilename.length()).tolowercase(); logger.info("图片文件扩展名="+fileextensionname); string[] imageextensionnamearray= websiteconstant.image_extension_name_array; string allimageextensionname=""; boolean iscontain=false;//默认不包含上传图片文件扩展名 for(int i=0;i<imageextensionnamearray.length;i++){ if(fileextensionname.equals(imageextensionnamearray[i])){ iscontain=true; } if(i==0){ allimageextensionname+=imageextensionnamearray[i]; }else{ allimageextensionname+=" , "+imageextensionnamearray[i]; } } string newfilename=java.util.uuid.randomuuid().tostring()+fileextensionname; string uploadpath =websiteconstant.pic_app_file_system_ckeditor_location; if(iscontain){//包含 file pathfile = new file(uploadpath); if (!pathfile.exists()) { // 如果路径不存在，创建 pathfile.mkdirs(); } try { fileutils.copyinputstreamtofile(file.getinputstream(), new file(uploadpath ,newfilename)); // inputstream is=file.getinputstream(); // file tofile = new file(uploadpath, newfilename); // 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(); } catch (ioexception e) { logger.error("fileutils.copyinputstreamtofile uploadpath="+uploadpath+" newfilename ="+newfilename+" exception="+e); } string imageurl=websiteconstant.pic_app_server_url+"images/ckeditor/"+newfilename; // 返回"图像信息"选项卡并显示图片 ,在对应的文本框中显示图片资源url out.println("<script type=\"text/javascript\">"); out.println("window.parent.ckeditor.tools.callfunction(" + callback + ",'" +imageurl + "','')"); out.println("</script>"); }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"+allimageextensionname+"文件）');"); out.println("</script>"); } } } } |
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<span style="font-size:14px;">public class websiteconstant { public static string[] image_extension_name_array={".jpg",".jpeg",".png",".gif",".bmp"}; public static string pic_app_server_url="http://localhost:8090/picture/"; public static string pic_app_file_system_ckeditor_location="/users/abc/documents/tomcat/webapps/picture/images/ckeditor/"; public static final int success = 1; // 操作成功 </span> |
5.若是在maven项目中使用的ckeditor，需要在pom.xml中添加如下代码：
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<dependency> <groupid>com.ckeditor</groupid> <artifactid>ckeditor-java-core</artifactid> <version>3.5.3</version> </dependency> |
6.最终效果图
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服务器之家。
