CODEWITHSUNDEEP
javaspringimagespring-mvcbase64
Dancyg
Dancyg

Reputation: 159

JAVA Spring returning image bytes - Error 406 not acceptable

I'm having next issue - each image sends request:

<img src="getImage/9.jpg"/>

Spring MVC Controller:

    @Secured( "ROLE_ADMIN")
    @RequestMapping(value = "/getImage/{img_name:.+}")
    public byte[] getImage(@PathVariable String img_name)  {

        byte[] data;

        try {
            String realpath = "D:\\Project\\images\\" + img_name;
            Path path = Paths.get(realpath);
            data = Files.readAllBytes(path)


        }catch (IOException e){
            data = null;
        }

        return data;
    }

On the side of browser I'm receiving next error:

406 Not Acceptable

What could be the reason of such issue? What data should I send from the server side to make this <img src="getImage/9.jpg"?> work properly.

Upvotes: 0

Views: 1878

Answers (1)

Mudassar
Mudassar

Reputation: 3205

Kindly add this code in the spring-context.xml file which registers a ByteArrayHttpMessageConverter

<mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>image/jpeg</value> <value>image/png</value> </list> </property> </bean> </mvc:message-converters> </mvc:annotation-driven

and the class should be

 @Secured( "ROLE_ADMIN")
@RequestMapping(value = "/getImage/{img_name:.+}")
public  ResponseEntity<byte[]> getImage(@PathVariable String img_name)
        throws InternalServerError {

    byte[] data;
    try {
        String realpath = "D:\\Project\\images\\" + img_name;
        Path path = Paths.get(realpath);
        data = Files.readAllBytes(path)


    }catch (IOException e){
        data = null;
    }

    final HttpHeaders headers = new HttpHeaders();
    headers.setContentType(MediaType.IMAGE_JPEG);
    return new ResponseEntity<byte[]>(data , headers, HttpStatus.OK);
}

Upvotes: 4

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