controller - req(@RequestHeader)

@RequestHeader

• Request Headers 가져오기

properties

• value : String, header 이름
• required : boolean, 필수 지정

e.g. User-Agent 읽기

@GetMapping("/agent")
public String readAgent(
	@RequestHeader(value="User-Agent",required = true) String userAgent
    @RequestHeader("x-authorization") String authorization){
	return userAgent;
}

e.g. HttpServletRequest로 읽기

@GetMapping("/agent")
public String readAgent(HttpServletRequest request){
	return request.getHeader("User-Agent");	
}

---