Spring Boot应用程序中如何定义拦截器的执行顺序

在Spring Boot应用程序中，拦截器是一种强大的工具，用于在请求到达控制器之前或之后对请求进行预处理或后处理。拦截器的执行顺序非常重要，因为它决定了每个拦截器在请求处理过程中的执行顺序。在本文中，我们将介绍如何定义拦截器的执行顺序，并提供一个案例代码来说明。

java
@Configuration
public class InterceptorConfig implements WebMvcConfigurer {
    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new FirstInterceptor()).addPathPatterns("/**");
        registry.addInterceptor(new SecondInterceptor()).addPathPatterns("/**");
    }
}
public class FirstInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("FirstInterceptor preHandle");
        return true;
    }
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("FirstInterceptor postHandle");
    }
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("FirstInterceptor afterCompletion");
    }
}
public class SecondInterceptor implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        System.out.println("SecondInterceptor preHandle");
        return true;
    }
    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        System.out.println("SecondInterceptor postHandle");
    }
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        System.out.println("SecondInterceptor afterCompletion");
    }
}