springboot拦截器

WebConfig.java：

package cn.ted.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

import cn.ted.intercept.LoginInterceptor;

@Configuration
public class WebConfig extends WebMvcConfigurerAdapter {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {

        // 需要拦截的路径

        String[] addPathPatterns = { "/boot/**"

        };

        // 不拦截的路径

        String[] excludePathPatterns = { "/boot/students"

        };

        // 注册登录拦截器
        registry.addInterceptor(new LoginInterceptor()).addPathPatterns(addPathPatterns)
                .excludePathPatterns(excludePathPatterns);

        // 注册权限拦截器

        /*registry.addInterceptor(new AuthInterceptor()).addPathPatterns(addPathPatterns)
                .excludePathPatterns(excludePathPatterns);*/

    }
}

LoginInterceptor.java:

package cn.ted.intercept;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class LoginInterceptor implements HandlerInterceptor{

    public void afterCompletion(HttpServletRequest arg0,
            HttpServletResponse arg1, Object arg2, Exception arg3)
            throws Exception {
        // TODO Auto-generated method stub
        
    }

    public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
            Object arg2, ModelAndView arg3) throws Exception {
        // TODO Auto-generated method stub
        
    }

    public boolean preHandle(HttpServletRequest arg0, HttpServletResponse arg1,
            Object arg2) throws Exception {
        
        
        System.out.println("进入拦截器");
        return false;
    }

}