JSP开发中Apache-HTTPClient 用户验证的实例详解

前言：

在微服务框架之外的系统中，我们经常会遇到使用httpClient进行接口调用的问题，除了进行白名单的设置，很多时候我们需要在接口调用的时候需要身份认证。翻了一下官方文档，解决方法很多，但是都不太符合实际业务场景，这里提供一种简单粗暴的解决方法。

解决方法：利用请求头，将验证信息保存起来。

实现代码：

public class HttpClientUtils {

  protected static final Logger LOG = LoggerFactory.getLogger(HttpClientUtils.class);

  private static final String AUTHENKEY = "Authorization";

  private static final String BASICKEY = "Basic ";

  public static String getConnect(String url,String username,String password) {

    CloseableHttpResponse response = null;

    CloseableHttpClient client = HttpClients.createDefault();

    HttpGet httpGet = new HttpGet(url);
    Base64 token = new Base64();
    String authenticationEncoding = token.encodeAsString(new String(username + ":" + password).getBytes());

    httpGet.setHeader(AUTHENKEY, BASICKEY + authenticationEncoding);

    String responseContent = "";
    try {
      response = client.execute(httpGet);

      HttpEntity entity = response.getEntity();

      responseContent = EntityUtils.toString(entity, "UTF-8");

    } catch (IOException e) {
      LOG.error(e.toString());
    } finally {
      if (response != null) {
        try {
          response.close();
        } catch (IOException e) {
          LOG.error(e.toString());
        }
      }

      if (client != null) {
        try {
          client.close();
        } catch (IOException e) {
          LOG.error(e.toString());
        }
      }
    }

    return responseContent;
  }


}

以上就是Apache-HTTPClient 用户验证的实例，如有疑问请留言或者到本站社区交流讨论，感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！