Java请求调用参数格式为form-data类型的接口代码示例

public static String doPostForm(String url, HashMap<String, String> map) throws Exception {
        String result = "";
        CloseableHttpClient client = null;
        CloseableHttpResponse response = null;
        RequestConfig defaultRequestConfig = RequestConfig.custom().setSocketTimeout(550000).setConnectTimeout(550000)
                .setConnectionRequestTimeout(550000).setStaleConnectionCheckEnabled(true).build();
        client = HttpClients.custom().setDefaultRequestConfig(defaultRequestConfig).build();
        // client = HttpClients.createDefault();
        URIBuilder uriBuilder = new URIBuilder(url);
        HttpPost httpPost = new HttpPost(uriBuilder.build());
        httpPost.setHeader("Connection", "Keep-Alive");
        httpPost.setHeader("Charset", "UTF-8");
        httpPost.setHeader("Content-Type", "application/x-www-form-urlencoded");
        Iterator<Map.Entry<String, String>> it = map.entrySet().iterator();
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        while (it.hasNext()) {
            Map.Entry<String, String> entry = it.next();
            NameValuePair pair = new BasicNameValuePair(entry.getKey(), entry.getValue());
            params.add(pair);
        }
        httpPost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
        try {
            response = client.execute(httpPost);
            if (response != null) {
                HttpEntity resEntity = response.getEntity();
                if (resEntity != null) {
                    result = EntityUtils.toString(resEntity, "UTF-8");
                }
            }
        } catch (ClientProtocolException e) {
            throw new RuntimeException("创建连接失败" + e);
        } catch (IOException e) {
            throw new RuntimeException("创建连接失败" + e);
        }
        return result;
    }