java8新特性实例

1.已经存好了一个List ,需要把另一个list的值更新到一个已经存好数据的list,这里可以通过会员编号，两个list 都有这个值，然后进行筛选，匹配，更新数据。
nr = pushService.pushGzMsg(pushGzMsgParams);
      System.out.println("nr>1:推送后的结果" + nr);
      resp.put("NotifyResponse", nr);
      if (nr == null || nr.getData() == null) {
         resp.put("status", false);
         return resp;
      }
      List<Map> dataList = (List<Map>) nr.getData();
      // if (dataList == null || dataList.size() < 1) {
      // resp.put("status", false);
      // return resp;
      // }
      // if "info=true" key=uid else key=openid
      System.out.println("nr.getData():" + nr.getData());
      // nr.getData():[{openid=oWM7djr08tyULLyJyFvAg5Ta26t8, status=ok}, {openid=oWM7djiCudmvYrgnSZxc8LidHxoY, status=ok}]
      // List<GzStstus> resultList = new ArrayList<GzStstus>();
      String memberKeyString = null;
      for (Map m : dataList) {
         java.util.Optional<String> memberKeyOptional = lstPplString.stream()
               .filter(e -> e.containsKey("openId") && m.containsKey("uid") && e.get("openId") != null && e.get("openId").equalsIgnoreCase(m.get("uid").toString())).map(e -> String.format("%s", e.get("memberKey")))
               .findAny();
         memberKeyString = memberKeyOptional.isPresent() ? memberKeyOptional.get() : null;
         if (memberKeyString != null) {
            final String memberKey = memberKeyString;
            java.util.Optional<NotifySettingRecord> recordOptional = paramsGzRecordList.stream().filter(e -> e.getMemberKey() != null && Long.toString(e.getMemberKey()).equalsIgnoreCase(memberKey)).findAny();
            if (recordOptional.isPresent()) {
               String realStatuString = "";
               String realReasonString = "";
               String statusString = m.get("status").toString();
               if (statusString.equalsIgnoreCase("ok")) {
                  realStatuString = "推送成功";
                  realTotal = realTotal + 1;
                  System.out.println("realTotal:" + realTotal);
               }
               else {
                  realStatuString = "推送失败";
                  if (statusString.contains("invalid appid")) {
                     realReasonString = "无效appid";
                  }
                  else if (statusString.contains("invalid openid")) {
                     realReasonString = "无效openid";
                  }
                  else if (statusString.contains("user refuse")) {
                     realReasonString = "用户拒绝接收";
                  }
                  else if (statusString.contains("require subscribe rid")) {
                     realReasonString = "未订阅";
                  }
                  else if (statusString.contains("access_token expired")) {
                     realReasonString = "token过期";
                  }
                  else if (statusString.contains("invalid weapp pagepath ")) {
                     realReasonString = "无效的跳转路径";
                  }
               }
               recordOptional.get().setStatus(m.containsKey("status") ? realStatuString : "unknow");
               recordOptional.get().setReason(m.containsKey("status") ? realReasonString : "");
            }
         }
         // status.setOpenid(m.containsKey("openid") ? m.get("openid").toString() : "");
         // status.setStatus(m.containsKey("status") ? m.get("status").toString() : "");
         // resultList.add(status);
      }
   }
      addRecords(paramsGzRecordList);
      log.getLogger("notify_s").info("notify.updateRecords.>1:({},{}):{}", adminInfo.getCurrent_empId(), pushGzMsgParams);

}