java使用CKEditor实现图片上传功能

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

@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>"); 
  } 
 
 }  
 } 
 
} 

<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：

<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。