Java上传文件错误java.lang.NoSuchMethodException的解决办法

java.lang.nosuchmethodexception: [lorg.springframework.web.multipart.multipartfile;.<init>()

   at java.lang. class .getconstructor0(unknown source)

   at java.lang. class .getdeclaredconstructor(unknown source)

   at org.springframework.beans.beanutils.instantiateclass(beanutils.java: 104 )

   at org.springframework.web.method.annotation.modelattributemethodprocessor.createattribute(modelattributemethodprocessor.java: 137 )

   at org.springframework.web.servlet.mvc.method.annotation.servletmodelattributemethodprocessor.createattribute(servletmodelattributemethodprocessor.java: 80 )

@requestmapping (value= "uploadfilesforweditor" ,method={requestmethod.get,requestmethod.post})

   @responsebody

   public static map<string,object> uploadfilesforweditor( @requestparam ( "files" )multipartfile[] files,httpservletrequest request,httpservletresponse response){

     map<string,object> map= new hashmap<>();

     list<string> url = new arraylist<>();

     for ( int i = 0 ; i < files.length; i++) {

       string result=fileuploadutils.fileupload(files[i], request, response);

       if (result!= "" ){

         url.add(result);

       }

     }

     if (url.size()> 0 ){

       map.put( "errno" , 0 );

       map.put( "msg" , "上传成功" );

       map.put( "data" ,url);

     } else {

       map.put( "errno" , 1 );

       map.put( "msg" , "上传失败" );

       map.put( "data" ,url);

     }

     return map;

   }

public static string fileupload(multipartfile file,httpservletrequest request,httpservletresponse response){

     //获取图片的原名字

     string oldname=file.getoriginalfilename();

     string timename=system.currenttimemillis()+ "_" ;

     string newname=timename+oldname; 

     //获取项目的路径 在项目路径下新建文件夹

     string path= "d:/uploadfile" ;

     //新建 uploadfile 文件夹

     file parentpath= new file(path);

     if (!parentpath.exists()){

       parentpath.mkdirs();

     }

     string src= "" ;

     try {

       file.transferto( new file(parentpath,newname));

       file thefile= new file(parentpath+ "/" +newname);

       if (thefile.exists()){

         //拼接图片的相对路径作为url

         src= "/" +newname;

       } else {

         src= "" ;

       }

     } catch (illegalstateexception e) {

       e.printstacktrace();

     } catch (ioexception e) {

       e.printstacktrace();

     }

     return src;

   }