SpringMVC返回图片的几种方式?

Question

SpringMVC返回图片的几种方式

Answer 1

返回二进制图片
案例：
主要借助的是 HttpServletResponse这个对象，实现case如下
@RequestMapping(value = {"/img/render"})
@CrossOrigin(origins = "*")
@ResponseBody
public String execute(HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) {
// img为图片的二进制流
byte[] img = xxx;
httpServletResponse.setContentType("image/png");
OutputStream os = httpServletResponse.getOutputStream();
os.write(img);
os.flush();
os.close();
return "success";
}
返回图片的http地址
返回base64格式的图片
直接返回二进制的图片