Spring mvc two different controllers are passed by session

Reference reference
Two controllers do not need to be under one class

@RequestMapping("/dll")
@ResponseBody
public userbean bean(userbean bean,HttpServletRequest request){
	String id = (String)  request.getSession().getAttribute("projectid"); 
	System.out.print(id+";;;;;;;;;;;");
	return bean;
	
}

the second

//--------------------- 
//作者：云淡风轻58 
//来源：CSDN 
//原文：https://blog.csdn.net/dwenxue/article/details/81735864 
//版权声明：本文为博主原创文章，转载请附上博文链接！

@RequestMapping("/film/uploadPic")
@ResponseBody

public Object uploadPic(HttpServletRequest request) throws Exception {
	 request.getSession().setAttribute("projectid","oo"); 
  
System.out.println("上传的图片的newName: " );
   
    return "s";
    }
   // }
	
}