spring boot 接收微信推送过来的post数据 springboot接受post请求

请求：

RestTemplate restTemplate = new RestTemplate();
            LinkedMultiValueMap body=new LinkedMultiValueMap();
            body.add("map",dataService.runData());
            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.APPLICATION_JSON_UTF8);
            HttpEntity httpEntity = new HttpEntity(body,headers);
            restTemplate.exchange("http://localhost:9001/getData",HttpMethod.POST,httpEntity,String.class);

接收：

@PostMapping(value = "getData",produces = {"application/json;charset = utf-8"})
    public void getData(@RequestBody LinkedMultiValueMap map){
        try {
            dataService.runData(map.get("map"));
        }catch (Exception e){
            e.printStackTrace();
        }