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src/main/java/com/zteits/oa/configuration/auth/AuthInterceptor.java 4.41 KB
9a56ec74   王富生   增加权限及全局异常统一封装
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  package com.zteits.oa.configuration.auth;
  
  import java.io.PrintWriter;
  import java.util.List;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import javax.servlet.http.HttpSession;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.http.HttpStatus;
  import org.springframework.stereotype.Component;
  import org.springframework.util.CollectionUtils;
  import org.springframework.web.method.HandlerMethod;
  import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
  
  import com.alibaba.fastjson.JSONObject;
  import com.zteits.oa.api.base.annotation.NoAuth;
  import com.zteits.oa.api.base.bean.BizResult;
  import com.zteits.oa.api.base.constants.ErrorType;
  import com.zteits.oa.api.base.constants.SessionEnum;
  import com.zteits.oa.api.dto.asraop.LoginOathRes;
  
  /**
   * Copyright: Copyright (c) 2017  zteits
   *
   * @ClassName: com.clouds.common.web.auth
   * @Description:
   * @version: v1.0.0
   * @author: atao
   * @date: 2017/5/11   上午9:34
   * Modification History:
   * Date         Author          Version      Description
   * ---------------------------------------------------------*
   * 2017/5/11      atao          v1.0.0          创建
   */
  @Component
  public class AuthInterceptor extends HandlerInterceptorAdapter {
  
      private static final Logger log = LoggerFactory.getLogger(AuthInterceptor.class);
      
      private static final String MIME_JSON = "application/json;charset=UTF-8";
      
  //    @Autowired
  //    private RedisCacheUtil redisCacheUtil;
  
      //在请求进入controller前进行拦截
      @Override
      public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
          throws Exception {
          log.info("===开始校验用户权限校验======");
          log.info("===开始校验用户权限校验 url为{}",request.getRequestURI());
          if(!isNeedAuth(handler)){
              log.info("===不需要进行权限校验");
              return true;
          }
          HttpSession session = request.getSession();
          System.out.println(request.getRequestURI());
          System.out.println("获取到的session="+session.getId());
          //定义初始化的变量
          Object object = session.getAttribute(SessionEnum.USER_INFO.key());
          if (null == object) {
              log.info("===权限校验,用户未登陆!");
              setErrorResult(response, ErrorType.AUTH_TOKEN_NOT_EXISTS);
              return false;
          }
          //LoginOathRes userInfo = (LoginOathRes)object;
          
          
  
          return true;
      }
  
      /**
       * 返回错误结果
       *
       * @param response
       * @param errortype 错误类型
       * @throws Exception
       */
      private void setErrorResult(HttpServletResponse response, ErrorType errortype) throws Exception {
          log.info("===校验用户权限  校验失败: ErrorType:errorCode={},errMsg={}", errortype.getCode(), errortype.getMsg());
          PrintWriter writer = response.getWriter();
          response.setCharacterEncoding("UTF-8");
          response.setHeader("Content-type", MIME_JSON);
          response.setContentType(MIME_JSON);
          BizResult<?> bizResult = new BizResult<>(errortype);
          response.setStatus(HttpStatus.OK.value());
          writer.write(JSONObject.toJSON(bizResult).toString());
          writer.close();
      }
  
      /**
       * 判断此次请求是否需要进行鉴权
       * @param handler
       * @return true 需要权限校验 false 不需要权限校验
       */
      private boolean isNeedAuth(Object handler){
          log.info("==权限校验 判断是否需要进行权限校验");
          boolean flag = true;
          if(handler instanceof HandlerMethod){
  
              HandlerMethod handlerMethod = (HandlerMethod)handler;
              log.info("===访问的Controller 为{},请求的方法为{}",handlerMethod.getBeanType().getName(),handlerMethod.getMethod().getName());
  
              log.info(handlerMethod.getBeanType().getName());
              
              boolean authFlag=handlerMethod.getBeanType().isAnnotationPresent(NoAuth.class);
              if(authFlag){
                  //如果Controller类上标注了NoAuth,整个类里面的方法都不需要进行权限校验
                  return !authFlag;
              }
  
              authFlag =  handlerMethod.hasMethodAnnotation(NoAuth.class);
             return !authFlag;
          }
          log.info("==权限校验 判断是否需要进行权限校验 flag={}",flag);
          return flag;
      }
      
  }