Httpclient 发送 post 请求封装json 格式参数

﹏ヽ暗。殇╰゛Y 2022-12-13 14:05 448阅读 0赞

Httpclient 发送 post 请求可以封装多格式的参数，这篇我们封装json格式的：

1、客户端代码如下：

/**
         * 参数以json形式传送
         * @param request
         * @return
         * @throws IOException
         */
        public NmpResponse doPostJson(NmpRequest request) throws IOException {
            logger.info("------------开始POST请求-nmpHttpClient-----------");
    
            HttpClient httpClient = new HttpClient();
            httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(15000);
            PostMethod postMethod = new PostMethod(NMP_ROOT_URL+request.getUrl());
            postMethod = setHeaderAuthInfo(postMethod);
    
            //添加请求参数
            String jsonParams = request.getJsonParam();
            System.out.println("推送参数："+jsonParams);
            postMethod.setRequestEntity(new StringRequestEntity(jsonParams,null,null));
            NmpResponse response = new NmpResponse();
    
            try {
                logger.info("------------开始执行POST请求，url:{}------------",NMP_ROOT_URL+request.getUrl());
                int statusCode = httpClient.executeMethod(postMethod);
                logger.info("------------POST请求结束，code={}------------",statusCode);
    
                if (statusCode == 200){
                    response.setRespBody(postMethod.getResponseBody());
                    response.setResponseStr(postMethod.getResponseBodyAsString());
                    response.setRespHeaders(postMethod.getRequestHeaders());
                } else{
                    logger.error("请求出错code={}：{}" ,statusCode ,postMethod.getStatusLine());
                }
            } catch (IOException e){
                logger.error("请求出错IOException：{}" ,e);
                throw e;
            } finally {
                postMethod.releaseConnection();
                logger.info("------------结束POST请求-nmpHttpClient-----------");
            }
            return response;
        }

2、服务端接收代码：

@RequestMapping(value = "/download/getListData")
        public Object queryPartitionList(@RequestBody PartitionVO partitionVO){
            if(Objects.isNull(partitionVO) ||StringUtils.isEmpty(partitionVO.getLayName()) ||CollectionUtils.isEmpty(partitionVO.getParNameList())){
                logger.error("Method:queryPartitionList 入参不能为空");
                return new JSONObject();
            }
            if (StringUtils.isEmpty(partitionVO.getProductVersion())){
                partitionVO.setProductVersion(Constant.ProductVersionLastest);
            }
           JSONObject jsonObject = new JSONObject();
           //业务代码省略
    
            return jsonObject;
        }

3、服务端 partitionVO和客户端 jsonParams 数据里的参数一一对应。