spring-boot 加入拦截器Interceptor

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1.spring boot拦截器默认有

HandlerInterceptorAdapter
AbstractHandlerMapping
UserRoleAuthorizationInterceptor
LocaleChangeInterceptor
ThemeChangeInterceptor

2.配置spring mvc的拦截器WebMvcConfigurerAdapter

public class WebAppConfig extends WebMvcConfigurerAdapter

3.实现添加拦截器方法

public void addInterceptors(InterceptorRegistry registry){}registry.addInterceptor可以通过此方法添加拦截器, 可以是spring提供的或者自己添加的

4.实例部分

public class WebAppConfig extends WebMvcConfigurerAdapter{    public static void main(String[] args) {SpringApplication.run(WebAppConfig.class, args);}         /**     * 配置拦截器     * @author lance     * @param registry     */    public void addInterceptors(InterceptorRegistry registry) {    registry.addInterceptor(new UserSecurityInterceptor()).addPathPatterns("/user/**");}}UserSecurityInterceptor代码public class UserSecurityInterceptor implements HandlerInterceptor {@Overridepublic boolean preHandle(HttpServletRequest request,HttpServletResponse response, Object handler) throws Exception {                return true;}@Overridepublic void postHandle(HttpServletRequest request,HttpServletResponse response, Object handler,ModelAndView modelAndView) throws Exception {}@Overridepublic void afterCompletion(HttpServletRequest request,HttpServletResponse response, Object handler, Exception ex)throws Exception {}}

5.demo地址
https://github.com/leelance/spring-boot-all/tree/master/spring-boot-samples

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