Spring Boot配置拦截器

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SpringBoot拦截器

最近项目中有一个需求，对来访的请求，进行计算，记录下业务处理时间。Spring Boot项目中使用拦截器，超级简单，再次说明一下用法。相信大家一看便懂。

1.继承 HandlerInterceptor 实现具体的处理逻辑

public interface HandlerInterceptor {    boolean preHandle(HttpServletRequest var1, HttpServletResponse var2, Object var3) throws Exception; //是否放行    void postHandle(HttpServletRequest var1, HttpServletResponse var2, Object var3, ModelAndView var4) throws Exception; //处理结束    void afterCompletion(HttpServletRequest var1, HttpServletResponse var2, Object var3, Exception var4) throws Exception; //在处理结束后执行，最后执行的方法}

以下是我的处理逻辑

/** * @Package: foxlife.base.interceptor * @Description: 处理时间拦截器，记录下，接口处理时间 * @author: liuxin * @date: 17/2/22 上午10:58 */@Componentpublic class ChanelInterceptor implements HandlerInterceptor {    private static Logger logger = LoggerFactory.getLogger(ChanelInterceptor.class);    @Override    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object o) throws Exception {        logger.info("============================拦截器启动==============================");        request.setAttribute("starttime",System.currentTimeMillis());        return true;    }    @Override    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object o, ModelAndView modelAndView) throws Exception {        logger.info("===========================执行处理完毕=============================");        long starttime = (long) request.getAttribute("starttime");        request.removeAttribute("starttime");        long endtime = System.currentTimeMillis();        logger.info("============请求地址："+request.getRequestURI()+"：处理时间：{}",(endtime-starttime)+"ms");    }    @Override    public void afterCompletion(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception e) throws Exception {        logger.info("============================拦截器关闭==============================");    }}

2.配置拦截器到应用中

/** * @Package: foxlife.base.config * @Description: 配置拦截器 * @author: liuxin * @date: 17/2/22 上午11:04 */@Configurationpublic class MyInterceptorConfig extends WebMvcConfigurerAdapter{    @Override    public void addInterceptors(InterceptorRegistry registry) {        registry.addInterceptor(new ChanelInterceptor()).addPathPatterns("/**");    }}

3.演示

2017-02-23 15:40:43.619  INFO 64568 --- [io-31024-exec-3] f.base.interceptor.ChanelInterceptor     : ============================拦截器启动==============================2017-02-23 15:40:43.621  INFO 64568 --- [io-31024-exec-3] f.base.interceptor.ChanelInterceptor     : ===========================执行处理完毕=============================2017-02-23 15:40:43.621  INFO 64568 --- [io-31024-exec-3] f.base.interceptor.ChanelInterceptor     : ============请求地址：/error：处理时间：2ms2017-02-23 15:40:43.621  INFO 64568 --- [io-31024-exec-3] f.base.interceptor.ChanelInterceptor     : ============================拦截器关闭==============================

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