java - Get form's multiple inputs with the same name in spring mvc -

i have input fields in jsp page, , fields can dynamically created or removed. have map input fields spring mvc's @modelattributes. not know how map input fields.

i want submit form composed of:

<form enctype="multipart/form-data">     <!-- code omitted -->      <div>         <input type="text" name="content">         <input type="file" name="file">     </div>     <div>         <input type="text" name="content">         <input type="file" name="file">     </div>     <div>         <input type="text" name="content">         <input type="file" name="file">     </div> </form> 

and fields should guided java classe(@modelattribute):

package com.musicovery12.cookingstep.web.command;  import java.util.arrays; import java.util.list;   public class addrecipecommand {      private string mainimageurl;     private string foodname;     private string kcal;     private string ingredients;     private string fooddescription;      // not know how map field.     private list<recipestep> recipesteps;      private string videourl;       public string getmainimageurl() {         return mainimageurl;     }     public void setmainimageurl(string mainimageurl) {         this.mainimageurl = mainimageurl;     }     public string getfoodname() {         return foodname;     }     public void setfoodname(string foodname) {         this.foodname = foodname;     }     public string getkcal() {         return kcal;     }     public void setkcal(string kcal) {         this.kcal = kcal;     }     public string getingredients() {         return ingredients;     }     public void setingredients(string ingredients) {         this.ingredients = ingredients;     }     public string getfooddescription() {         return fooddescription;     }     public void setfooddescription(string fooddescription) {         this.fooddescription = fooddescription;     }     public list<recipestep> getrecipesteps() {         return recipesteps;     }     public void setrecipesteps(list<recipestep> recipesteps) {         this.recipesteps = recipesteps;     }     public string getvideourl() {         return videourl;     }     public void setvideourl(string videourl) {         this.videourl = videourl;     }     @override     public string tostring() {         return "addrecipecommand [mainimageurl=" + mainimageurl + ", foodname="                 + foodname + ", kcal=" + kcal + ", ingredients=" + ingredients                 + ", fooddescription=" + fooddescription + ", recipesteps="                 + recipesteps + ", videourl=" + videourl + "]";     } } 

that command class has property not primitive type. it's recipestep:

package com.musicovery12.cookingstep.web.command;  import org.springframework.web.multipart.multipartfile;  public class recipestep {     private string content;     private multipartfile image;      public recipestep() {}      public string getcontent() {         return content;     }     public void setcontent(string content) {         this.content = content;     }     public multipartfile getimage() {         return image;     }     public void setimage(multipartfile image) {         this.image = image;     }      @override     public string tostring() {         return "recipestep [content=" + content + ", image=" + image + "]";     }   } 

so question is, how map form's input fields above java class? possible changing name of input fields? then, how?

public class multiplefileuploadform {

private list<multipartfile> files;      public list<multipartfile> getfiles() {         return files;     }      public void setfiles(list<multipartfile> files) {         this.files = files;     }  

}

public @responsebody string handlefileupload(@modelattribute("multiplefileuploadform") multiplefileuploadform multiplefileuploadform){

}

add @modelattribute in controller

wiki