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How to explicitly obtain post data in Spring MVC?

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What is get and post method in Spring MVC?

1) In case of Get request, only limited amount of data can be sent because data is sent in header. In case of post request, large amount of data can be sent because data is sent in body. 2) Get request is not secured because data is exposed in URL bar. Post request is secured because data is not exposed in URL bar.

What is the use of model addAttribute () in Spring?

Furthermore, there's also an addAttributes() method. Its purpose is to add values in the Model that'll be identified globally. That is, every request to every controller method will return a default value as a response.

What is @RequestBody in Spring boot?

The @RequestBody annotation is applicable to handler methods of Spring controllers. This annotation indicates that Spring should deserialize a request body into an object. This object is passed as a handler method parameter.


If you are using one of the built-in controller instances, then one of the parameters to your controller method will be the Request object. You can call request.getParameter("value1") to get the POST (or PUT) data value.

If you are using Spring MVC annotations, you can add an annotated parameter to your method's parameters:

@RequestMapping(value = "/someUrl")
public String someMethod(@RequestParam("value1") String valueOne) {
 //do stuff with valueOne variable here
}

Another answer to the OP's exact question is to set the consumes content type to "text/plain" and then declare a @RequestBody String input parameter. This will pass the text of the POST data in as the declared String variable (postPayload in the following example).

Of course, this presumes your POST payload is text data (as the OP stated was the case).

Example:

    @RequestMapping(value = "/your/url/here", method = RequestMethod.POST, consumes = "text/plain")
    public ModelAndView someMethod(@RequestBody String postPayload) {    
        // ...    
    }

Spring MVC runs on top of the Servlet API. So, you can use HttpServletRequest#getParameter() for this:

String value1 = request.getParameter("value1");
String value2 = request.getParameter("value2");

The HttpServletRequest should already be available to you inside Spring MVC as one of the method arguments of the handleRequest() method.