springboot配置拦截器

2018年1月9日10:30:30
简单的记录一下。

1.自定义一个MyInterceptor 实现HandlerInterceptor

package com.hll.hlladmin.config;

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

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

import com.hll.hlladmin.model.User;

/**
 * @author hll
 * @date 2018年1月6日 上午11:27:48   
 */
@Component
public class MyInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
            throws Exception {
        // TODO Auto-generated method stub
        User user = (User) request.getSession().getAttribute("user");
        if (user == null) {
            response.sendRedirect(request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+request.getContextPath() + "/hlladmin/login");
            return false;
        }
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
            ModelAndView modelAndView) throws Exception {
        // TODO Auto-generated method stub

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
            throws Exception {
        // TODO Auto-generated method stub

    }

}

2.创建MyWebMvcConfigurerAdapter

package com.hll.hlladmin.config;

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

/**
 * @author hll
 * @date 2018年1月6日 上午11:23:37   
 */
@Configuration
public class MyWebMvcConfigurerAdapter extends WebMvcConfigurerAdapter {

    /**
     * 配置静态资源
     */
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
        registry.addResourceHandler("/templates/**").addResourceLocations("classpath:/templates/");
        super.addResourceHandlers(registry);
    }

    public void addInterceptors(InterceptorRegistry registry) {
        //addPathPatterns 用于添加拦截规则
        //excludePathPatterns 用于排除拦截
        registry.addInterceptor(new MyInterceptor()).addPathPatterns("/**")
            .excludePathPatterns("/hlladmin/login") //登录页
            .excludePathPatterns("/hlladmin/user/sendEmail") //发送邮箱
            .excludePathPatterns("/hlladmin/user/register") //用户注册
            .excludePathPatterns("/hlladmin/user/login"); //用户登录
        super.addInterceptors(registry);
    }
}