httpClient模仿Basic Auth

@GetMapping("loginTest")

    public String httpClientWithBasicAuth() {

        String username="myApp";

        String password="";

        String uri="http://xxxx:xxxx/jwtauthsvr/oauth/token";

        Map<String, String> paramMap = new HashMap<>();

        paramMap.put("grant_type", "password");

        paramMap.put("scope", "webclient");

        paramMap.put("username", "Jamie");

        paramMap.put("password", "");

        String result = "";

        try {

            // 创建HttpClientBuilder

            HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();

            CloseableHttpClient closeableHttpClient = httpClientBuilder.build();

            HttpPost httpPost = new HttpPost(uri);

            //添加http头信息

            httpPost.addHeader("Authorization", "Basic " + Base64.getUrlEncoder().encodeToString((username + ":" + password).getBytes()));

            MultipartEntityBuilder builder = MultipartEntityBuilder.create();

            paramMap.forEach((k,v)->{

                builder.addPart(k, new StringBody(v, ContentType.MULTIPART_FORM_DATA));

            });

            HttpEntity postEntity = builder.build();

            httpPost.setEntity(postEntity);

            HttpResponse httpResponse = null;

            HttpEntity entity = null;

            try {

                httpResponse = closeableHttpClient.execute(httpPost);

                entity = httpResponse.getEntity();

                if( entity != null ){

                    result = EntityUtils.toString(entity);

                }

            } catch (ClientProtocolException e) {

                e.printStackTrace();

            } catch (IOException e) {

                e.printStackTrace();

            }

            // 关闭连接

            closeableHttpClient.close();

        }catch (Exception e) {

            e.printStackTrace();

        }

        return result;

    }