java 微信分账POST请求 （java代码调用微信api）

今天用java 调用 微信分账api 由于上传的数据是xml 格式, 用post请求发送 。在网上找的现成函数，微信服务器老是返回签名错误，但是我用postman 发送返回的数据没有问题，于是经过自己探索，写了个测试可用的post 发送函数，和大家分享一下。

public static String httpPostRequest(String url, String requestStr) throws IOException {

        HttpClientBuilder httpClientBuilder = HttpClients.custom();
        HttpPost httpPost = new HttpPost(url);
        httpPost.setEntity(new StringEntity(new String(requestStr.getBytes(StandardCharsets.UTF_8), StandardCharsets.ISO_8859_1)));
        try (CloseableHttpClient httpclient = httpClientBuilder.build()) {
            httpPost.setEntity(new StringEntity(new String(requestStr.getBytes(StandardCharsets.UTF_8), StandardCharsets.ISO_8859_1)));
            try (CloseableHttpResponse response = httpclient.execute(httpPost)) {
                String responseString = EntityUtils.toString(response.getEntity(), StandardCharsets.UTF_8);
                _log.info("\n【请求地址】：{}\n【请求数据】：\n{}\n【响应数据】：\n {}", url, requestStr, responseString);
                return responseString;
            }
        }catch (Exception e){
            _log.info("\n【请求地址】：{}\n【请求数据】：\n{}\n【异常信息】：\n{}\n", url, requestStr, e.getMessage());
        }
        finally {
            httpPost.releaseConnection();
        }

        return null;
    }

微信服务器返回的数据如下

<xml>
<return_code>return_code>
<result_code>result_code>
<mch_id>mch_id>
<appid>appid>
<receiver>receiver>
<nonce_str>nonce_str>
<sign>sign>
xml>