spring mvc获取header

两种方法：

1.在方法参数中加入@RequestHeader

2.在类级别注入HttpServletRequest

建议使用第二种方法，这样可避免每个方法都加入HttpHeaders参数

@Controller
@RequestMapping("/hello")
public class HelloController {
@Autowired
private HttpServletRequest request;

@RequestMapping(value="/printname/{name}", method=RequestMethod.GET)
public String printName(@PathVariable String name,
@RequestHeader HttpHeaders headers) {
System.out.println("from request:" + request.getHeader("code"));
System.out.println("from parameter:" + headers.getFirst("code"));

return "hello";
}
}
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import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
//..

@Controller
public class HelloController {

@RequestMapping(value = "/hello.htm")
public String hello(@RequestHeader(value="User-Agent", defaultValue = "0") String userAgent)

//..
}
}
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原文链接：https://blog.csdn.net/lzc4869/article/details/78496241