springboot 项目整合拦截器

末蓝、 2023-06-12 08:36 96阅读 0赞

### springboot 项目整合拦截器 ###

*  springboot 项目整合拦截器
 *   *  创建拦截器 PermissionIntercepter
     *  创建实现类，用于实现具体业务 UserBlackIntercepter
     *  创建配置类实现WebMvcConfigurer
     *  拦截路径如下

# springboot 项目整合拦截器 #

## 创建拦截器 PermissionIntercepter ##

package com.dongao.project.aspectj.interceptor;
    
    import com.dongao.project.api.domain.Constants;
    import com.dongao.project.aspectj.json.Json;
    import com.ruoyi.common.utils.ServletUtils;
    import com.ruoyi.framework.web.domain.AjaxResult;
    import org.springframework.stereotype.Component;
    import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
    
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    /**
     * @author： dongao
     * @create: 2019/10/31
     */
    @Component
    public abstract class PermissionIntercepter extends HandlerInterceptorAdapter {
    
        @Override
        public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception
        {
            if (this.isBlack(request)) {
                AjaxResult ajaxResult = new AjaxResult();
                ajaxResult.put("code", Constants.CODE.USER_IN_BLACKLIST.getValue());
                ajaxResult.put("msg", Constants.CODE.USER_IN_BLACKLIST.getDescription());
                ajaxResult.put("obj", "");
                ServletUtils.renderString(response, Json.marshal(ajaxResult));
                return false;
            }
            return true;
        }
    
        /**
         * 判断是否是黑名单用户
         * @param request
         * @return
         * @throws Exception
         */
        public abstract boolean isBlack(HttpServletRequest request) throws Exception;
    }

## 创建实现类，用于实现具体业务 UserBlackIntercepter ##

package com.dongao.project.aspectj.interceptor.impl;
    
    import com.dongao.project.api.domain.Constants;
    import com.dongao.project.aspectj.interceptor.PermissionIntercepter;
    import com.dongao.project.utils.RedisUtils;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.stereotype.Component;
    
    import javax.servlet.http.HttpServletRequest;
    
    /**
     * 判断是否是黑名单用户
     * @author： dongao
     * @create: 2019/10/31
     */
    @Component
    public class UserBlackIntercepter extends PermissionIntercepter {
    
        private static final Logger logger = LoggerFactory.getLogger(UserBlackIntercepter.class);
        @Override
        public boolean isBlack(HttpServletRequest request) throws Exception {
            String userId = request.getParameter("userId");
            logger.info("开始校验当前用户userId:【{}】是否是黑名单用户======",userId);
            boolean result = RedisUtils.hasKey(Constants.COMMUNITY_USER_BLACK_KEY + userId);
            logger.info("校验当前用户userId:【{}】是否是黑名单用户结果result:【{}】======",userId,result);
            return result;
        }
    }

## 创建配置类实现WebMvcConfigurer ##

package com.dongao.project.config;
    
    import com.dongao.project.aspectj.interceptor.PermissionIntercepter;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
    
    /**
     * @ClassName PermissionConfig
     * @Author dongao
     * @Version 1.0
     * @Date 2019/10/31 0028 下午 8:07
     **/
    @Configuration
    public class PermissionConfig implements WebMvcConfigurer  {
    
        @Autowired
        private PermissionIntercepter permissionIntercepter;
    
        /**
         * 自定义拦截规则
         */
        @Override
        public void addInterceptors(InterceptorRegistry registry)
        {
            String permissionUrl = ConfigConstant.permissionUrl;
            String[] split = permissionUrl.split(",");
            registry.addInterceptor(permissionIntercepter).addPathPatterns(split);
        }
    }

## 拦截路径如下 ##

permission.urlPatterns=/s1/v1/course/addCours,\
      /s1/v1/courseCom/addCourCom