AOP实现上下文存储 --- 系统框架搭建(三)

 /** * 全文上下文 * * @author keying */public class ContextUtil implements InitializingBean {     private static Context systemContext = new Context();     private static ThreadLocal<Context> threadLocalContext = new ThreadLocal<>();     public static Context getContext() {        return threadLocalContext.get();    }     public static void setContext(Context context) {        threadLocalContext.set(context);    }     public static void removeContext() {        threadLocalContext.remove();    }     public static Context getSystemContext(){        return systemContext;    }     @Override    public void afterPropertiesSet() throws Exception {        systemContext.setUserId("admin");    }} /** * 上下文 * * @author keying */@Data@AllArgsConstructor@NoArgsConstructorpublic class Context {     private String userId;}

/** * 登入拦截器 * * @author keying * @date 2021/6/11 */@Configuration@Slf4jpublic class LoginConfiguration implements WebMvcConfigurer {     @Resource    private RedisTemplate redisTemplate;     @Override    public void addInterceptors(InterceptorRegistry registry) {        //注册拦截器        InterceptorRegistration interceptorRegistration = registry.addInterceptor(new HandlerInterceptor() {            @Override            public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)                throws Exception {               /* log.info("登入拦截器启动！！");                log.info("session是否存在:{}", request.getSession().getAttribute("name"));                if (request.getSession().getAttribute("name") != null) {                    redisTemplate.opsForValue().set("name", request.getSession().getAttribute("name"), 10,TimeUnit.SECONDS);                    return true;                }                log.info("request.getContextPath():{}", request.getContextPath());                response.sendRedirect(request.getContextPath() + "/redis/single/system1");                //如果设置为false时，被请求时，拦截器执行到此处将不会继续操作                //如果设置为true时，请求将会继续执行后面的操作                return false;*/                return true;            }             @Override            public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,                ModelAndView modelAndView) throws Exception {                log.info("postHandle");            }             @Override            public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,                Exception ex) throws Exception {                log.info("afterCompletion");            }        });        //所有路径都被拦截       /* interceptorRegistration.addPathPatterns("/**");*/        //添加不拦截路径        interceptorRegistration.excludePathPatterns(            //"/redis/single/login_page",            "/redis/single/system1",            "/redis/single/system2",            "/redis/single/detection",            "/**/*.html",            "/**/*.js",            "/**/*.css",            "/**/*.woff",            "/**/*.ttf"        );         interceptorRegistration = registry.addInterceptor(new HandlerInterceptor() {            @Override            public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)                throws Exception {                //加上下文                Context context = getContext();                ContextUtil.setContext(context);                return true;            }             @Override            public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,                Exception ex) throws Exception {                //一定要记得remove                ContextUtil.removeContext();            }        });         //拦截所有路径        interceptorRegistration.addPathPatterns("/**");     }     private Context getContext() {        //给一个虚拟的登入者        return new Context("keying");    }}