springMVC ajax传对象数组

ajax:

contentType:"application/json"
data:JSON.stringify(arr)
dataType:"json"

controller:

     1.bean:
     
          public ~~~~~~(@RequestBody List<bean> arr)
          (@RequestBody 类名[] arr)  !!!arr 为实体bean

     2.key-value
     
          public~~~~~~~(@RequestBody List<Map<string,string>> users){
          
	            for( Map<string,string> map : users){
	                 user u = new user();
	                 u.setName(map.get("name"));
	            }
           }

3.json字串

   data : {
	       users:Json.stringify(user)
	      }
	      

	public ~~~~~(string users)