@RestController without @ResponseBody on methods work incorrect

I have the following controller:

@RestController
@RequestMapping(value = "/base/url")
public class MyController {

    @RequestMapping(
            value = "/child/url",
            method = RequestMethod.POST
    )
    @ResponseBody
    public String mmm() {      
        return "Ok";
    }
}

Now its working(server response Ok) but I thought that @ResponseBody redundant because we use @RestController and removed @ResponseBody annotation

and I see following server response:

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>
        <title>Error 404 Not Found</title>
    </head>
    <body>
        <h2>HTTP ERROR 404</h2>
        <p>Problem accessing /base/url/child/url/Ok. Reason:

            <pre>    Not Found</pre>
        </p>
        <hr />
        <i>
            <small>Powered by Jetty://</small>
        </i>
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        <br/>                                                


    </body>
</html>

Can you explain this behaviour ?

P.S.

Spring version: 4.1.6.RELEASE

P.S.

I have found only this part related to mvc config:

<context:annotation-config/>

<context:component-scan base-package="base.package"/>

To be able to use @RestController you have to explicitly enable the new annotation processing classes. By either adding <mvc:annotation-driven /> (for XML) or @EnableWebMvc (for Java Config).

By default the DispatcherServlet registers the, now deprecated, AnnotationMethodHandlerAdapter and DefaultAnnotationHandlerMapping which can be considered the predecessor or the newer stuff.

来源：https://stackoverflow.com/questions/35407390/restcontroller-without-responsebody-on-methods-work-incorrect

标签

java

Spring

rest

spring-mvc

controller