java - 如何在 Spring MVC 中向拦截器注入(inject)属性

Question

我将 spring mvc 应用程序配置从 xml 更改为代码。自更改以来，我的拦截器中的所有注入(inject)属性都是 null (authenticationService)。

代码如下:

public class WebAuthenticationInterceptor extends HandlerInterceptorAdapter {


    @Resource(type=WebAuthenticationService.class)
    private IAuthenticationService authenticationService;

    @Override
    public boolean preHandle(HttpServletRequest request,
            HttpServletResponse response, Object handler) throws Exception {


        if(authenticationService.authenticate(request).authenticated == false)
        {
            if(isAjax(request))
                response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
            else
                response.sendRedirect(String.format("%s/#/account/logout", request.getContextPath()));

            return false;
        }
        return true;

    }

    public static boolean isAjax(HttpServletRequest request) {
        return "XMLHttpRequest".equals(request.getHeader("X-Requested-With"));
    }
}

拦截器配置:

@Override
    public void addInterceptors(InterceptorRegistry registry) {

        registry.addInterceptor(new WebAuthenticationInterceptor()).addPathPatterns("/home/**");
        registry.addInterceptor(new MobileAuthenticationInterceptor()).addPathPatterns("/api/**");
    }

你能说说我做错了什么吗？

谢谢

Answer 1

您正在使用 new 关键字创建对象。而是尝试在 Spring 配置中将 WebAuthenticationInterceptor 和 MobileAuthenticationInterceptor 定义为 @Bean