IntelliJ IDEA 2017版 spring-boot搭建拦截器

1、建立一个springboot-web项目

         https://www.cnblogs.com/liuyangfirst/p/8298588.html

2、加入过滤接口

public class LoginInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {

        System.out.println("已经进入了登录拦截器......");

        // 逻辑代码按照之前的方式去编写即可


        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    }
}

3、配置识别类

// 当前类变成配置拦截器类
@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {

        // 需要拦截的路径
        String[] addPathPatterns = {"/test/**"};

        //不拦截的路径
        String[] excludePathPatterns = {"/index", "/myjsp"};


//        注册登录拦截器(此拦截器注册多行就是,添加多个拦截器)
        registry.addInterceptor(new LoginInterceptor())
                .addPathPatterns(addPathPatterns).
                excludePathPatterns(excludePathPatterns);
    }
}

4、源码位置

https://github.com/liushaoye/05-filter/tree/master