目录

• 扩展默认的spirngMVC功能
  • 步骤
  • 代码

扩展默认的spirngMVC功能

步骤

1、使用@Configuration标注为配置类
2、实现WebMvcConfigurer接口
3、 根据需要实现接口方法

代码

CustomMvcConfig

@Configurationpublic class CustomMvcConfig implements WebMvcConfigurer { //自定义拦截器 @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new MyInterceptor()).addPathPatterns("/**").excludePathPatterns("/test1"); } //访问/showLogin时跳转到login视图 @Override public void addViewControllers(ViewControllerRegistry registry) { registry.addViewController("/showLogin").setViewName("login"); } }

MyInterceptor

public class MyInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { System.out.println("MyInterceptor.preHandle"); return true; } @Override public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception { System.out.println("MyInterceptor.postHandle"); } @Override public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception { System.out.println("MyInterceptor.afterCompletion"); }}