RestTemplate发送post请求，并传josn格式参数

你的名字 2022-09-08 12:57 304阅读 0赞

RestTemplate发送post请求，并传josn格式的参数

第一种情况：这个第三方的接口接收数据的时候是@RequestBody修饰的  
![在这里插入图片描述][28a964da8e8046b0bde7ba787c1a0457.png]

代码片段供参考：

public Boolean getSalesInfoByUpdateTime(String startTime,String endTime) {
            String salesinfoUrl = "http://----------------"
            //设置消息头
            HttpHeaders headers = setHeaders();
            //把参数封装成 实体类
            PhDateTime time = new PhDateTime();
            time.setStartTime(startTime);
            time.setEndTime(endTime);
            //自定义 httpEntity
            HttpEntity<?> httpEntity = new HttpEntity<>(time, headers);
            //创建一个响应接收数据的对象
            ParameterizedTypeReference<ResponseObject<PhSalesInfo>> responseBodyType = new ParameterizedTypeReference<ResponseObject<PhSalesInfo>>() {};
            ResponseEntity<ResponseObject<PhSalesInfo>> res = restTemplate.exchange(salesinfoUrl, HttpMethod.POST, httpEntity, responseBodyType);
            //得到值
            List<PhSalesInfo> data = res.getBody().getData();
    
            return true;
        }

最重要的是  
POST请求传参消息头设置请求参数

private HttpHeaders setHeaders() {
            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.parseMediaType("application/json;charset=UTF-8"));
            headers.add("Accept", MediaType.APPLICATION_JSON.toString());
            headers.add("Accept-Charset", "UTF-8");
            return headers;
        }

第二种情况：这个第三方的接口接收数据的时候是@RequestParam修饰的  
![在这里插入图片描述][61cce2e5ce0f4671b1fe94ee63cf682a.png]  
直接把参数拼在url后面即可

public List<String> getContNoByDate(String queryDate) {
        	String contnoUrl = "http://---------"
            ParameterizedTypeReference<PhjkbCustomResponseEntity<String>> responseBodyType = new ParameterizedTypeReference<PhjkbCustomResponseEntity<String>>() {
            };
            ResponseEntity<ResponseObject<String>> res = restTemplate.exchange(contnoUrl+"?queryDate="+queryDate, HttpMethod.GET, HttpEntity.EMPTY, responseBodyType);
    
            List<String> prtNos =res.getBody().getData();
            return prtNos;
        }

返回响应的实体类 ResponseObject，根据接口返回的报文而定

例如

public class ResponseObject<T> {
        private boolean success;
        private String errorCode;
        private String errorMsg;
        private List<String> errorMsgList;
        private List<T> data;
    
        public boolean isSuccess() {
            return success;
        }
    
        public void setSuccess(boolean success) {
            this.success = success;
        }
    
        public String getErrorCode() {
            return errorCode;
        }
    
        public void setErrorCode(String errorCode) {
            this.errorCode = errorCode;
        }
    
        public String getErrorMsg() {
            return errorMsg;
        }
    
        public void setErrorMsg(String errorMsg) {
            this.errorMsg = errorMsg;
        }
    
        public List<String> getErrorMsgList() {
            return errorMsgList;
        }
    
        public void setErrorMsgList(List<String> errorMsgList) {
            this.errorMsgList = errorMsgList;
        }
    
        public List<T> getData() {
            return data;
        }
    
        public void setData(List<T> data) {
            this.data = data;
        }
    }

[28a964da8e8046b0bde7ba787c1a0457.png]: /images/20220829/3116e6ea798a43648d6bbbca18624f14.png
[61cce2e5ce0f4671b1fe94ee63cf682a.png]: /images/20220829/6d11a367447e4eee9d720c3ba3da7579.png