spring boot 获取 request

HttpServletRequest request = ((ServletRequestAttributes)RequestContextHolder.getRequestAttributes()).getRequest();

 Method invocation 'getRequest' may produce 'java.lang.NullPointerException' less... (Ctrl+F1)
 Inspection info: This inspection analyzes method control and data flow to report possible conditions that are always true or false, expressions whose value is statically proven to be constant, and situations that can lead to nullability contract violations.
 Variables, method parameters and return values marked as @Nullable or @NotNull are treated as nullable (or not-null, respectively) and used during the analysis to check nullability contracts, e.g. report NullPointerException (NPE) errors that might be produced.
 More complex contracts can be defined using @Contract annotation, for example:
 @Contract(", null -> null") — method returns null if its second argument is null @Contract(", null -> null; _, !null -> !null") — method returns null if its second argument is null and not-null otherwise @Contract("true -> fail") — a typical assertFalse method which throws an exception if true is passed to it
 The inspection can be configured to use custom @Nullable
 @NotNull annotations (by default the ones from annotations.jar will be used)
 

HttpServletRequest request = ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();

public static <T> T requireNonNull(T obj) {
        if (obj == null)
            throw new NullPointerException();
        return obj;
    }

@GetMapping(value = "")
public String center(HttpServletRequest request,HttpServletResponse response) {
    //...
}

@Autowired
private HttpServletRequest request;

@Autowired
private HttpServletResponse response;

@GetMapping(value = "")
public String center() {
    //...
}