Spring Boot2.0 设置拦截器

所有功能完成 配置登录认证

配置拦截器

• 新建包com.example.interceptor;

• 创建login拦截类

package com.example.interceptor;import org.springframework.web.servlet.HandlerInterceptor;import org.springframework.web.servlet.ModelAndView;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;public class LoginInterceptor implements HandlerInterceptor {    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {       //请求进入这个拦截器
        HttpSession session = request.getSession();        if(session.getAttribute("user") == null){       //判断session中有没有user信息//            System.out.println("进入拦截器");
            if("XMLHttpRequest".equalsIgnoreCase(request.getHeader("X-Requested-With"))){
                response.sendError(401);
            }
            response.sendRedirect("/");     //没有user信息的话进行路由重定向
            return false;
        }        return true;        //有的话就继续操作
    }    @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 {

    }
}

• 在com.example包中添加拦截控制器

package com.example;import com.example.interceptor.LoginInterceptor;import com.example.interceptor.RightsInterceptor;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.*;@Configuration          //使用注解 实现拦截public class WebAppConfigurer implements WebMvcConfigurer   {    @Autowired
    RightsInterceptor rightsInterceptor;    @Override
    public void addInterceptors(InterceptorRegistry registry) {        //登录拦截的管理器
        InterceptorRegistration registration = registry.addInterceptor(new LoginInterceptor());     //拦截的对象会进入这个类中进行判断
        registration.addPathPatterns("/**");                    //所有路径都被拦截
        registration.excludePathPatterns("/","/login","/error","/static/**","/logout");       //添加不拦截路径

    }

}

• 在WebAppConfigurer.java中增加内容

package com.example;import com.example.interceptor.LoginInterceptor;import com.example.interceptor.RightsInterceptor;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.context.annotation.Configuration;import org.springframework.web.servlet.config.annotation.*;@Configuration          //使用注解 实现拦截public class WebAppConfigurer implements WebMvcConfigurer   {    @Autowired
    RightsInterceptor rightsInterceptor;    @Override
    public void addInterceptors(InterceptorRegistry registry) {        //登录拦截的管理器
        InterceptorRegistration registration = registry.addInterceptor(new LoginInterceptor());     //拦截的对象会进入这个类中进行判断
        registration.addPathPatterns("/**");                    //所有路径都被拦截
        registration.excludePathPatterns("/","/login","/error","/static/**","/logout");       //添加不拦截路径//        super.addInterceptors(registry);


        //权限拦截的管理器
        InterceptorRegistration registration1 = registry.addInterceptor(rightsInterceptor);
        registration1.addPathPatterns("/**");                    //所有路径都被拦截
        registration1.excludePathPatterns("/","/login","/error","/static/**","/logout");       //添加不拦截路径
    }

}