Analisis terperinci tentang logik panggilan antara muka perbandingan muka Java dan Huawei Cloud

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import com.alibaba.fastjson.JSONObject;

public static double compare(String image1, String image2) {
    double similarity = 0.0;
    try {
        // 根据实际的服务部署地区选择对应的API地址
        String apiUrl = "https://face.cn-north-1.myhuaweicloud.com/v2/compare-face";
        
        // 创建HttpPost对象，并设置请求的URL
        HttpPost httpPost = new HttpPost(apiUrl);
        
        // 设置请求的头部信息
        httpPost.setHeader("Content-Type", "application/json;charset=UTF-8");
        httpPost.setHeader("X-Auth-Token", getAuthToken());
        
        // 设置请求的内容参数
        JSONObject requestObj = new JSONObject();
        requestObj.put("image1", image1);
        requestObj.put("image2", image2);
        
        StringEntity requestEntity = new StringEntity(requestObj.toJSONString(), ContentType.APPLICATION_JSON);
        httpPost.setEntity(requestEntity);

        // 创建HttpClient对象，并发送HttpPost请求
        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpResponse response = httpClient.execute(httpPost);

        // 获取接口返回的结果
        HttpEntity entity = response.getEntity();
        String result = EntityUtils.toString(entity, "UTF-8");

        // 解析接口返回的结果
        JSONObject responseObj = JSONObject.parseObject(result);
        similarity = responseObj.getDouble("similarity");
    } catch (Exception e) {
        e.printStackTrace();
    }
    return similarity;
}

public static String getAuthToken() {
    String authToken = "";
    try {
        // 根据实际的服务部署地区选择对应的API地址
        String apiUrl = "https://iam.cn-north-1.myhuaweicloud.com/v3/auth/tokens";
        
        // 创建HttpPost对象，并设置请求的URL
        HttpPost httpPost = new HttpPost(apiUrl);
        
        // 设置请求的头部信息
        httpPost.setHeader("Content-Type", "application/json;charset=UTF-8");
        
        // 设置请求的内容参数
        String requestBody = "{"auth":{"identity":{"methods":["password"],"password":{"user":{"name":"<your_account_name>","password":"<your_password>","domain":{"name":"<your_domain_name>"}}}},"scope":{"project":{"name":"<your_project_name>"}}}}";
        StringEntity requestEntity = new StringEntity(requestBody, ContentType.APPLICATION_JSON);
        httpPost.setEntity(requestEntity);

        // 创建HttpClient对象，并发送HttpPost请求
        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpResponse response = httpClient.execute(httpPost);

        // 获取接口返回的结果
        Header[] headers = response.getHeaders("X-Subject-Token");
        if (headers.length > 0) {
            authToken = headers[0].getValue();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return authToken;
}