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Can any one tell me how I can return string message from controller?
If i just return a string from a controller method then spring mvc treating it as a jsp view name.
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The Best Answer is. public class StringResponse { private String response; public StringResponse(String s) { this. response = s; } // get/set omitted... }
Instead of passing a null argument for your error case, pass in a String . Spring is smart enough to see the String and write it as text to the response body. Alternatively, provide a @ExceptionHandler that will handle the exception itself and have your handler throw the exception.
Spring @GetMapping ExampleThe @GetMapping annotation is a specialized version of @RequestMapping annotation that acts as a shortcut for @RequestMapping(method = RequestMethod. GET) . The @GetMapping annotated methods in the @Controller annotated classes handle the HTTP GET requests matched with given URI expression.
Annotate your method in controller with @ResponseBody:
@RequestMapping(value="/controller", method=GET) @ResponseBody public String foo() { return "Response!"; } From: 15.3.2.6 Mapping the response body with the @ResponseBody annotation:
The
@ResponseBodyannotation [...] can be put on a method and indicates that the return type should be written straight to the HTTP response body (and not placed in a Model, or interpreted as a view name).
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With Spring 4, if your Controller is annotated with @RestController instead of @Controller, you don't need the @ResponseBody annotation.
The code would be
@RestController public class FooController { @RequestMapping(value="/controller", method=GET) public String foo() { return "Response!"; } } You can find the Javadoc for @RestController here
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