我创建了一个弹簧网络应用程序,用于将图像存储为blob并显示<img>标记.如何在页面上显示？它没有在我的页面上使用百万富翁模板引擎显示image.img.
我试过这段代码:
<img th:attr="src=@{${Advertising.image}} , title=#{background}, alt=#{background}"
width="20" height="20"/>
@RequestMapping("/ViewAd.html")
public String viewAdvertise(ModelMap map) throws IOException {
map.addAttribute("Advertising", advertisingDAO.findById(2));
return "/admin/EditAdvertisement";
}
作为Nizet答案的扩展,这里有一些代码可以举例说明:
@EnableAutoConfiguration
@ComponentScan
@Controller
public class Main {
public static void main(String[] args) {
SpringApplication.run(Main.class, args);
}
@RequestMapping(value = "/home")
public ModelAndView home() throws IOException {
ModelAndView view = new ModelAndView("index");
view.addObject("image_id", 1);
return view;
}
@RequestMapping(value = "/image/{image_id}", produces = MediaType.IMAGE_PNG_VALUE)
public ResponseEntity<byte[]> getImage(@PathVariable("image_id") Long imageId) throws IOException {
byte[] imageContent = //get image from DAO based on id
final HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.IMAGE_PNG);
return new ResponseEntity<byte[]>(imageContent, headers, HttpStatus.OK);
}
}
的index.html
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<p>
You can find <b>your inlined image</b> just below this text.
</p>
<p>
<img th:src="@{/image/${image_id}}" />
</p>
<p>
Regards, <br />
? <em>The Thymeleaf Team</em>
</p>
</body>
</html>
| 归档时间： |
|
| 查看次数： |
7975 次 |
| 最近记录： |