如何配置HttpClient进行基本身份验证？

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class HttpClientExample {
    public static void main(String[] args) throws Exception {
        // 创建HttpClient实例
        CloseableHttpClient httpClient = HttpClients.createDefault();

        // 创建认证凭证
        CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
        credentialsProvider.setCredentials(AuthScope.ANY,
                new UsernamePasswordCredentials("username", "password"));

        // 创建请求对象
        HttpGet httpGet = new HttpGet("http://example.com/api");

        // 添加身份验证
        httpClient = HttpClients.custom()
                .setDefaultCredentialsProvider(credentialsProvider)
                .build();

        // 发送请求
        HttpResponse response = httpClient.execute(httpGet);

        // 处理响应
        int statusCode = response.getStatusLine().getStatusCode();
        HttpEntity entity = response.getEntity();
        String responseBody = EntityUtils.toString(entity);

        // 打印响应结果
        System.out.println("Status Code: " + statusCode);
        System.out.println("Response Body: " + responseBody);

        // 关闭HttpClient
        httpClient.close();
    }
}