Common Java/JEE

In this post I will show how to pass parameters into a controller via a java script ajax. The parameters will be passed into the Spring MVC controller with Jquery javascript example:

MyController.java

@RequestMapping(value = "/processmyvals", method = RequestMethod.GET)
public void process(@RequestParam(value = "myVal1", required = true) String myVal1, @RequestParam(value = "myVal2", required = true) String myVal2, HttpServletRequest request, HttpServletResponse response) throws Exception {
	System.out.println(myVal1);
	System.out.println(myVal2);
        //...
	//writeResponse tha will be injected into as result in the ajax js below
}

myvals.html

...
My Val1: 
My Val2: 

...

myjavascript.js

function processMyVals(){
	$.ajax({
		type : 'GET',
		url : "myapp/app/processvals",
		data : { "myVal1":$("#myVal1").val(), "myVal2":$("#myVal2").val()},
		success : function(result) {
			$("#displayArea").html(result);
		}
	});
}

Conclusion
As we constantly see using Spring MVC controllers is very simple and straight forward. creating these kind of Spring MVC Controller | Jquery | Javascript come very handy and I use it a lot.