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Image Download with Spring MVC
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| package image; | |
| import java.io.IOException; | |
| import java.io.InputStream; | |
| import javax.servlet.http.HttpServletResponse; | |
| import org.apache.commons.io.IOUtils; | |
| import org.springframework.beans.factory.annotation.Value; | |
| import org.springframework.core.io.Resource; | |
| import org.springframework.http.HttpHeaders; | |
| import org.springframework.http.HttpStatus; | |
| import org.springframework.http.MediaType; | |
| import org.springframework.http.ResponseEntity; | |
| import org.springframework.stereotype.Controller; | |
| import org.springframework.web.bind.annotation.RequestMapping; | |
| import org.springframework.web.bind.annotation.RequestMethod; | |
| import org.springframework.web.bind.annotation.ResponseBody; | |
| @Controller | |
| public class ImageController { | |
| @Value("#{'resources/images/sample.jpg'}") | |
| private Resource resource; | |
| @RequestMapping(value = "/image1", method = RequestMethod.GET) | |
| public void testImage1(HttpServletResponse response) throws IOException { | |
| InputStream in = resource.getInputStream(); | |
| try { | |
| response.setContentType("image/jpeg"); | |
| IOUtils.copy(in, response.getOutputStream()); | |
| } finally { | |
| IOUtils.closeQuietly(in); | |
| } | |
| } | |
| @RequestMapping(value = "/image2", method = RequestMethod.GET) | |
| @ResponseBody | |
| public ResponseEntity<byte[]> testImage2() throws IOException { | |
| InputStream in = resource.getInputStream(); | |
| try { | |
| HttpHeaders headers = new HttpHeaders(); | |
| headers.setContentType(MediaType.IMAGE_JPEG); | |
| return new ResponseEntity<byte[]>(IOUtils.toByteArray(in), headers, | |
| HttpStatus.OK); | |
| } finally { | |
| IOUtils.closeQuietly(in); | |
| } | |
| } | |
| @RequestMapping(value = "/image3", method = RequestMethod.GET, produces = MediaType.IMAGE_JPEG_VALUE) | |
| @ResponseBody | |
| public byte[] testImage3() throws IOException { | |
| InputStream in = resource.getInputStream(); | |
| try { | |
| return IOUtils.toByteArray(in); | |
| } finally { | |
| IOUtils.closeQuietly(in); | |
| } | |
| } | |
| } |
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