Java 如何在HandlerInterceptorAdapter中添加HttpServletRequest头？

在切换环境时，我试图向请求中添加一个授权标头作为临时解决方法。我试图在一个扩展HandlerInterceptorAdapter的拦截器中处理它

我使用了MutableHttpServletRequest类，以便能够将头添加到请求中，但似乎没有任何方法可以实际修改拦截器中返回的请求。有什么想法吗

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编辑：还是必须在筛选器中执行此操作？

HttpServletRequest类型对象是只读的，要执行此操作，您应该：

public class YourInterceptor extends HandlerInterceptorAdapter {    

    @Override
    public boolean preHandle(HttpServletRequest request,
            HttpServletResponse response, Object handler) throws Exception {
        SomeModel model = new SomeModel();
        request.setAttribute("someValue", model );
        request.addHeader("xxx","asecret");

        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request,
            HttpServletResponse response, Object handler,
            ModelAndView modelAndView) throws Exception {
        //...
         response.addHeader("dummy-header, "dummy-value");
    }

    @Override
    public void afterCompletion(HttpServletRequest request,
            HttpServletResponse response, Object handler, Exception ex)
            throws Exception {
        SomeModel model = (Long) request.getAttribute("someValue");

    }

}

->创建一个扩展HttpServletRequestWrapper的类（添加一些行为、装饰器模式）

->在您的配置类中添加

 .and().addFilterAfter(new CustomGatewayFilter(), ConcurrentSessionFilter.class)

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您应该能够在中的preHandle（）处修改请求HandlerInterceptorAdapter@kuhajeyan我看不出有什么方法可以在拦截器中修改请求，因为它实际上并不返回请求对象。也许我遗漏了什么？

HttpServletRequest

没有名为

addHeader

的方法。此外，更新

postHandle

中的

响应将不会起任何作用，因为它在该点已提交。
public class CustomGatewayFilter implements Filter {

    @Override
    public void doFilter(ServletRequest request, ServletResponse response,
                         FilterChain chain) throws IOException, ServletException {
        HttpServletRequest req = (HttpServletRequest) request;
        MutableHttpServletRequest mutableRequest = new MutableHttpServletRequest(req);
        mutableRequest.putHeader("referer", "custom value");
        chain.doFilter(mutableRequest, response);
    }
}

 .and().addFilterAfter(new CustomGatewayFilter(), ConcurrentSessionFilter.class)