是否有一种静态方法来获取当前请求的HttpServletRequest

Question

我正在使用Spring注释,我可以HttpRequestContext从Controller传递给服务.

我正在寻找一种静态的方式或任何更好的解决方案而不是RequestContext四处传播.

Answer 1

如果您使用的是弹簧,则可以执行以下操作:

public static HttpServletRequest getCurrentHttpRequest(){
    RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();
    if (requestAttributes instanceof ServletRequestAttributes) {
        HttpServletRequest request = ((ServletRequestAttributes)requestAttributes).getRequest();
        return request;
    }
    logger.debug("Not called in the context of an HTTP request");
    return null;
}

Answer 2

或者java8方式

public static Optional<HttpServletRequest> getCurrentHttpRequest() {
    return Optional.ofNullable(RequestContextHolder.getRequestAttributes())
        .filter(ServletRequestAttributes.class::isInstance)
        .map(ServletRequestAttributes.class::cast)
        .map(ServletRequestAttributes::getRequest);
}

Answer 3

我知道，这已经是答案了。我想标记为新更新。我们可以HttpServletRequest使用 来注入@Autowired。它运行良好springboot。

@Autowired
private HttpServletRequest httpServletRequest;

Answer 4

作为参考，这将是 Kotlin 方式：

    val currentRequest: HttpServletRequest?
        get() = (RequestContextHolder.getRequestAttributes() as? ServletRequestAttributes)?.request