RestTemplate使用

1.获取http头对象

// org.springframework.http.HttpHeaders
private HttpHeaders getHttpHeaders() {
        HttpHeaders headers = new HttpHeaders();
        headers.setAcceptCharset(Collections.singletonList(Charset.forName("UTF-8")));
        headers.setContentType(MediaType.APPLICATION_JSON);
        headers.set("X-Auth-Token", "2Rgoes5JO/kxOHYgkpQ25w==");
        return headers;
    }

2.生成查询参数

private HttpEntity<Map<String, Object>> getHttpRequestParams(HttpHeaders headers){
      //转发请求参数
      Map<String, Object> params = new HashMap<>();
       params.put("src", new String[]{"th", "yn", "cap", "lf", "hc"});
       HttpEntity<Map<String, Object>> requestParam = new HttpEntity<>(params, headers);
      return requestParam;
}

3.发送http请求

RestTemplate restTemplate = new RestTemplate();
HttpHeaders headers = getHttpHeaders();
HttpEntity<Map<String, Object>> requestParam = getHttpRequestParams(headers);
ResponseEntity<String> responseEntity = restTemplate.postForEntity(url, requestParam, String.class);
JSONObject resJson = JSON.parseObject(responseEntity.getBody(), JSONObject.class);