Java sends with Basic Auth using the authentication method that comes with httpclient

Basic auth under Base64 encryption authentication mode.

Note that basic auth of base64 will fail authentication when using the authentication method that comes with
httpclient as follows:

CredentialsProvider provider = new BasicCredentialsProvider();UsernamePasswordCredentials credentials
 = new UsernamePasswordCredentials("username", "user1Pass");provider.setCredentials(AuthScope.ANY, credentials);HttpClient client = HttpClientBuilder.create()  .setDefaultCredentialsProvider(provider)  .build();

Example of successful pass:

package com.biologic.api.service.impl;import java.io.IOException;import java.util.Base64;import java.util.Map;import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.methods.HttpPost;import org.apache.http.entity.ContentType;import org.apache.http.entity.mime.MultipartEntityBuilder;import org.apache.http.entity.mime.content.StringBody;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClientBuilder;import org.apache.http.util.EntityUtils;import org.springframework.stereotype.Service;import com.biologic.api.service.HttpService;@Service
public class HttpServiceImpl implements HttpService {


    @Override
    public int httpClientWithBasicAuth(String username, String password, String uri, Map<String, String> paramMap) {
        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);
            String result = "";
            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();

            System.out.println(result);
    }catch (Exception e) {
        System.out.println(e.getStackTrace());
    }
    return 0;
    }



}

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