Java+protobuf 实例

之前开发都是JSON格式， 据说用这种格式的 安全， 输入输出全是二进制文件，且 数据占用内存小。

主要永远移动端数据传送。以下是代码：

controller: 请求的是实体：

package cn.ycmedia.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.RequestEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import cn.ycmedia.common.utils.result.ResultUtils;
import cn.ycmedia.model.ad.CreativeRequest.CreativeMsg;
import cn.ycmedia.model.report.ReportSearch;
import cn.ycmedia.model.report.ReportSearch.ReportS;
import cn.ycmedia.service.ReportService;

/**
 * @date
 * @author zhuliangxing
 * 报表
 *
 */
@RestController
@RequestMapping("report")
public class ReportController {
    private static Logger logger = LoggerFactory.getLogger(ReportController.class);
    @Autowired
    private ReportService reportService;

    /**
     * 获取报表数据
     * @param dateNum 天数
     * @param searchId  查询ID ， 根据type 1 代表 用户UID 2 代表广告ID
     * @param type
     * @return
     */
    @RequestMapping(value = "reportData", method = RequestMethod.POST)
    public String getReportData(RequestEntity<ReportS> requestEntity) {
        try {
            return ResultUtils.success("查询成功",reportService.findReportData(requestEntity) );
        } catch (Exception e) {
            logger.error(e.getMessage());
            return ResultUtils.error("系统异常");
        }
    }
}

查询实体 ：

option java_package = "model.report";

message ReportS {

    required string searchId = 1;
    required int32 dateNum = 2;
    required int32 type = 3;

}

service：

package cn.ycmedia.service;

import java.util.HashMap;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.RequestEntity;
import org.springframework.stereotype.Service;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

import cn.ycmedia.common.ThirdUrlConstants;
import cn.ycmedia.common.utils.HttpUtils;
import cn.ycmedia.dao.ReportDao;
import cn.ycmedia.model.report.ReportInfo;
import cn.ycmedia.model.report.ReportInfo.ReportInfoClass;
import cn.ycmedia.model.report.ReportSearch;
import cn.ycmedia.model.report.ReportSearch.ReportS;

/**
 * @author 朱良兴
 *
 */
@Service("reportService")
public class ReportService {

    @Autowired
    private ReportDao reportDao;
    public Object findReportData(RequestEntity<ReportS> requestEntity) {
        ReportS searCh =requestEntity.getBody();
        Map<String,String> map =new HashMap<String,String>(2);
        map.put("days",String.valueOf(searCh.getDateNum()));
        map.put(searCh.getType()==1?"uid":"appAdId", searCh.getSearchId());
        String data = HttpUtils.httpPost(searCh.getType()==1?ThirdUrlConstants.REPORT_USER_URL:ThirdUrlConstants.REPORT_AD_URL, map);
        JSONObject json = JSONObject.parseObject(data);
        //调用智橙接口查询成功
        if(json.getInteger("code")==200){
            ReportInfo.ReportInfoClass.Builder builder =ReportInfo.ReportInfoClass.newBuilder();
            builder.setClick(json.getInteger("click"));
            builder.setCost(json.getString("cost"));
            builder.setPv(json.getIntValue("pv"));
            //循环详细数据
            JSONArray jsonArr = json.getJSONArray("days");
            for (Object jsonDetail:jsonArr) {
                JSONObject detailData=(JSONObject)jsonDetail;
                builder.addDetail(ReportInfo.ReportInfoClass.DataDetail.newBuilder().
                        setClick(detailData.getIntValue("click"))
                        .setCost(detailData.getString("cost"))
                        .setPv(detailData.getIntValue("pv")));

            }
            ReportInfoClass info =builder.build();
            return info.toByteArray();

        }else{
            return json.getInteger("code")+":"+json.getString("Msg");
        }
    }

}

返回实体：

option java_package = "model.report";
option java_outer_classname = "ReportInfo";

message ReportInfoClass {

  required string cost = 1;
  required int32 pv = 2;
  required int32 click = 3;
  message DataDetail {
    required int32 pv = 1;
    required int32 click = 2;
    required string cost = 3;
  }
  repeated DataDetail detail = 4; 

}

==================================

当然我个人还是觉得JSON好点， 主要是习惯了，但是大数据的情况， 比如100M的JSON数据， 如果是protoBuf 只有  50M。 传输效率快 ，安全，

option java_package = "model.report";

message ReportS {

required string searchId = 1;
    required int32 dateNum = 2;
    required int32 type = 3;

}