介绍
@RequestMapping(value = "/getUserImage" , produces = org.springframework.http.MediaType.IMAGE_PNG_VALUE)
public @ResponseBody
void getUserImage(
@RequestParam(value = "userId", required = false) int userId,
HttpServletRequest request, HttpServletResponse response) {
try {
//Get file and add it to response
IOUtils.copy(inputStream, response.getOutputStream());
response.getOutputStream().flush();
response.setContentType(org.springframework.http.MediaType.IMAGE_PNG_VALUE);
response.setHeader("Content-Type","image/png");
response.flushBuffer();
inputStream.close();
} catch (Exception e){
}
}
我尝试在方法拦截器中以同样的方式添加响应头，但仍然没有成功。
但在Chrome和Firefox中也是如此。
试试这个：
@RequestMapping(value = "/image/{personId}")
@ResponseBody
public HttpEntity<byte[]> getPhoto(@PathVariable int personId) {
Person person = this.personService.getPersonById(personId);
if (person != null && person.getProfileThumbnail() != null) {
try {
byte[] image;
try {
image = org.apache.commons.io.FileUtils.readFileToByteArray(new File(msg + "/" + person.getUsername() + "/" + personId + ".png"));
} catch (FileNotFoundException e) {
image = org.apache.commons.io.FileUtils.readFileToByteArray(new File(defaultProfilePath));
}
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.IMAGE_PNG);
headers.setContentLength(image.length);
return new HttpEntity<>(image, headers);
} catch (IOException ignored) {
}
}
}
我所做的基本上是检查是否有一个图像在文件系统上为用户，如果没有，然后我加载一个默认的图像。现在它可以在所有浏览器上工作，所以即使personid是0，我也会得到默认图像，还有其他原因，我没有在这里发布。
