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 m = new hashmap();

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("

out.println("window.parent.ckeditor.tools.callfunction(" + callback

+ ",''," + "'文件大小不得大于10m');");

out.println("");

}

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

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("

out.println("window.parent.ckeditor.tools.callfunction(" + callback

+ ",'" +imageurl + "','')");

out.println("");

}else{

out.println("

out.println("window.parent.ckeditor.tools.callfunction(" + callback

+ ",''," + "'文件格式不正确(必须为"+allimageextensionname+"文件)');");

out.println("");

}

}

}

}

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

5.若是在maven项目中使用的ckeditor，需要在pom.xml中添加如下代码：

com.ckeditor

ckeditor-java-core

3.5.3

6.最终效果图

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