如何使用存储在会话存储中的访问令牌通过HttpClient进行web api调用？

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;

public class HttpClientExample {
    public static void main(String[] args) {
        // 从会话存储中获取访问令牌
        String accessToken = getSessionStorageToken();

        // 创建HttpClient对象
        HttpClient httpClient = HttpClientBuilder.create().build();

        // 创建HttpGet对象，并设置URL
        HttpGet httpGet = new HttpGet("https://api.example.com/endpoint");

        // 在请求头部添加Authorization字段
        httpGet.addHeader("Authorization", "Bearer " + accessToken);

        try {
            // 发送HTTP请求，并获取响应
            HttpResponse response = httpClient.execute(httpGet);

            // 处理HTTP响应
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode == 200) {
                // 解析响应内容
                HttpEntity entity = response.getEntity();
                String responseBody = EntityUtils.toString(entity);
                // 进行业务逻辑处理
                processResponse(responseBody);
            } else {
                // 处理错误情况
                handleErrorResponse(statusCode);
            }
        } catch (Exception e) {
            // 处理异常情况
            handleException(e);
        }
    }

    private static String getSessionStorageToken() {
        // 从会话存储中获取访问令牌的具体实现
        // ...
    }

    private static void processResponse(String responseBody) {
        // 处理响应内容的具体实现
        // ...
    }

    private static void handleErrorResponse(int statusCode) {
        // 处理错误响应的具体实现
        // ...
    }

    private static void handleException(Exception e) {
        // 处理异常情况的具体实现
        // ...
    }
}