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Ajax based on SPRINGMVC

Source: Internet
Author: User
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Background Code 


Package controller;

Import Javax.servlet.http.HttpServletRequest;
Import Org.springframework.stereotype.Controller;
Import org.springframework.web.bind.annotation.RequestMapping;
Import Org.springframework.web.bind.annotation.RequestMethod;
Import Org.springframework.web.bind.annotation.ResponseBody;

@Controller public
class Ajaxhandler {
	@RequestMapping (value = "/ajax.action", method = Requestmethod.post, produces = "Text/html;charset=utf-8")
	@ResponseBody public
	String method1 (HttpServletRequest request) {
		//Get the value
		of key username String username = request.getparameter ("username");

		Processing the obtained parameter
		System.out.println (username);
		String reslut = "Login succeeded:" + username;

		Return the result return
		Reslut;}

}





Front Code


<script type= "Text/javascript" src= "js/jquery-3.2.1.min.js" ></script>  
    <script type= "text/ JavaScript >  
    $ (function () {/  
          
        * Ajax Post */  
        $ (' #submitbt '). Click (function () {  
            var Username = $ ("# Username "). Val ();  
            $.post ("Ajax.action", {  
                username:username,  
            }, function (data) {  
                //from the back of the database  
                ;          
            });  
        } );  
          /* Ajax post */  
    });  
          
          
    </script>  
    <body>  
        <form action= "" method= "post" >  
        username<input type= "text" Name= "username"  id= "username"/>  
        <input type= "button"  value= "Ajax" id= "SUBMITBT" >  
        </form>  
</body>






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