利用Resttemplate进行put请求

开发中，最常用的是post、get这两种。今天我给大家展示一个利用put请求的demo，其实put请求跟post请求没啥区别，但是没有返回值。

void put(String var1, @Nullable Object var2, Object... var3) throws RestClientException;

    void put(String var1, @Nullable Object var2, Map<String, ?> var3) throws RestClientException;

    void put(URI var1, @Nullable Object var2) throws RestClientException;

 

下面就是demo（表现层代码就不写在这里了，业务逻辑层的代码给大家展示）。

package com.ecshop.service.impl;

import com.alibaba.fastjson.JSON;
import com.ecshop.common.dto.CreateOrderRequestDTO;
import com.ecshop.common.dto.OrderDto;
import com.ecshop.common.enums.ECShopErrorCodeEnum;
import com.ecshop.common.request.OrderCancelRequest;
import com.ecshop.common.util.ErrorResultInstallUtils;
import com.ecshop.service.OrderService;
import com.ecshop.service.client.PhpClient;
import com.ecshop.service.client.dto.request.OrderRequestDTO;
import com.ecshop.service.client.dto.response.BaseResponseDTO;
import com.ecshop.service.client.dto.response.OrderResponseDTO;
import lombok.extern.slf4j.Slf4j;
import org.dozer.DozerBeanMapper;
import org.dozer.Mapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;
import result.Result;

import java.util.Objects;

/**
 * @Author: zp
 * @Date: 2019/4/16 17:20
 * @Description:
 */
@Slf4j
@Service
public class OrderServiceImpl implements OrderService {

    private static final String Order_Cancel_Url = "http://localhost:10002";

    @Autowired
    private RestTemplate restTemplate;

   

    @Override
    public Result cancelOrder(OrderDto dto) {
        Result result = Result.success();
        String merSn = dto.getMerSn();
        OrderCancelRequest request = new OrderCancelRequest();
        BeanUtils.copyProperties(dto,request);
        log.info("取消订单请求实体类:"+JSON.toJSON(request));
        String jsonObj = JSON.toJSONString(request);
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON_UTF8);
        HttpEntity<String> httpEntity = new HttpEntity(jsonObj,headers);
        String requestUrl = Order_Cancel_Url+"/order/{merSn}/cancel";
        log.info("取消订单请求Url:"+requestUrl);
        try {
            restTemplate.put(requestUrl,httpEntity,merSn);
        }catch (Exception e){
            log.error("订单取消失败",e);
            return Result.fail("订单取消失败,请联系客服人员");
        }
        return result;
    }

    
}