httpClient模仿Basic Auth

httpClient模仿PostMan的Basic Auth

PostMan的Body如下，咱们下面的HttpClient也模仿该body进行请求

模仿上图的PostMan的httpclient代码调用如下：

@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;
    }