弱弱的问一下,try里面的pushOrder什么情况下会发生异常，我这程序就算下单失败。也提示下单成功

@Override
@Path("push")
@POST
@Consumes(value = MediaType.APPLICATION_JSON)
@Produces(value = MediaType.APPLICATION_JSON)
public BaseResponse pushOrder(PushOrderDto dto) {
    if (dto.getItemId() == null || dto.getItemId() <= 0 || Strings.isNullOrEmpty(dto.getCustomerName())
            || dto.getTotal() == null) {
        return new BaseResponse(StatusCode.InvalidParams);
    }
    log.info("请求过来的参数：{} ", dto);
    BaseResponse response = new BaseResponse(StatusCode.Success);
    try {
        //TODO:实际的业务逻辑

        //TODO:校验商品信息是否存在
        ItemInfo info = itemInfoMapper.selectByPrimaryKey(dto.getItemId());
        if (info == null) {
            return new BaseResponse(StatusCode.NotAllowParams);
        }

        //TODO:库存服务-校验....

        //TODO:客户中心服务-校验....

        //TODO:订单服务-下单
        OrderRecord entity = new OrderRecord();
        BeanUtils.copyProperties(dto, entity);
        entity.setOrderTime(new Date());
        orderRecordMapper.insertSelective(entity);

        response.setData(entity.getId());
    } catch (Exception e) {
        e.printStackTrace();
        response = new BaseResponse(StatusCode.Fail.getCode(), e.getMessage());
    }
    return response;
}

package com.yy.dubbo.two.server.service;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.yy.dubbo.two.server.request.RequestPushRecord;
import okhttp3.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.io.Serializable;

@Service
public class OrderRecordService implements Serializable{

    private static final Logger log = LoggerFactory.getLogger(OrderRecordService.class);

    @Autowired
    private ObjectMapper objectMapper;
    private OkHttpClient okHttpClient = new OkHttpClient();
    private static final String URL = "http://192.168.110.1:9013/v1/record/push";

    public void pushOrder(RequestPushRecord pushRecord) throws Exception {
        try {
            // 构建request builder
            Request.Builder builder = new Request.Builder().url(URL).header("Content-Type","application/json");
            // 构造请求体
            RequestBody requestBody = RequestBody.create(MediaType.parse("application/json"),
                    objectMapper.writeValueAsString(pushRecord));
            // 构造请求
            Request request = builder.post(requestBody).build();
            // 发起请求
            Response response = okHttpClient.newCall(request).execute();
            log.info(response.body().toString());
        } catch (Exception e) {
            throw e;
        }


    }
}