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ID Verification:IDV服務端範例程式碼

更新時間:Nov 19, 2025

我們建議您使用使用OpenAPI調試和整合服務端API文檔中的線上調試和範例程式碼擷取章節,基於阿里雲OpenAPI門戶擷取整合執行個體代碼。本文檔中,我們額外提供了少量可以直接啟動並執行範例程式碼供您參考。

範例程式碼概覽

程式設計語言

整合方式

憑據初始化方式

範例程式碼

Java

SDK

使用RAM子使用者AK

Java+SDK+AK

使用OIDCRoleArn

SDK+OIDCRoleArn

原生HTTPS(不推薦)

使用RAM子使用者AK

原生http+AK

使用OIDCRoleArn

原生http+OIDCRoleArn

Java+SDK+AK

  • 程式設計語言:Java

  • 整合方式:SDK

  • 憑據初始化方式:使用RAM子使用者AK

  • 依賴:

    <dependency>
       <groupId>com.aliyun</groupId>
       <artifactId>cloudauth_intl20220809</artifactId>
       <version>***</version> // 請訪問SDK中心擷取最新版本:https://next.api.alibabacloud.com/api-tools/sdk/Cloudauth-intl?version=2022-08-09&language=java-tea&tab=primer-doc
    </dependency>
  • 範例程式碼

    import com.aliyun.cloudauth_intl20220809.Client;
    import com.aliyun.cloudauth_intl20220809.models.InitializeRequest;
    import com.aliyun.cloudauth_intl20220809.models.InitializeResponse;
    import com.aliyun.cloudauth_intl20220809.models.InitializeResponseBody;
    import com.aliyun.teaopenapi.models.Config;
    
    public class Sample {
    
        private static Client client = null;
    
        static {
            try {
                // 構建Client
                client =  createClient();
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    
        public static void main(String[] args) throws Exception {
            try {
                // 1.構造請求參數(本樣本以Initialize介面為例,使用時請替換為您實際需要的介面)
                InitializeRequest request = new InitializeRequest();
                request.setProductCode("***");
                request.setMerchantBizId("***");
                request.setMerchantUserId("***");
                request.setMetaInfo("***");
                request.setDocType("********");
                request.setAuthorize("*");
    
                // 2.介面調用(本樣本以Initialize介面為例,使用時請替換為您實際需要的介面)
                InitializeResponse response = client.initialize(request);
    
                // 3.擷取調用結果
                Integer statusCode = response.getStatusCode();// 調用狀態代碼
                String code = response.getBody().getCode();// 調用code碼
                InitializeResponseBody.InitializeResponseBodyResult result = response.getBody().getResult(); // 調用返回
            } catch (Exception e) {
                // 此處僅做列印展示,請謹慎對待異常處理,在工程專案中切勿直接忽略異常。
                e.printStackTrace();
            }
        }
    
    
        /**
         * 構建Client
         * @return
         * @throws Exception
         */
        public static Client createClient() throws Exception {
            Config config = new Config();
            // 設定帳號ak,請不要將明文AK直接寫在代碼中,建議從環境變數中擷取,否則將導致安全性漏洞
            config.setAccessKeyId("<your access key id>");
            config.setAccessKeySecret("<your access key secret>");
            // 設定endpoint和regionId(本樣本以香港為例,使用時請替換為您實際需要的endpoint)
            config.setEndpoint("cloudauth-intl.cn-hongkong.aliyuncs.com");
            config.setRegionId("cn-hongkong");
            return new Client(config);
        }
    }

SDK+OIDCRoleArn

  • 程式設計語言:Java

  • 整合方式:SDK

  • 憑據初始化方式:使用OIDCRoleArn

  • 依賴:

    <dependency>
       <groupId>com.aliyun</groupId>
       <artifactId>credentials-java</artifactId>
       <version>***</version>
    </dependency> // credentials-java的最新版本請查閱:https://central.sonatype.com/artifact/com.aliyun/credentials-java
      
    <dependency>
       <groupId>com.aliyun</groupId>
       <artifactId>cloudauth_intl20220809</artifactId>
       <version>***</version> // cloudauth_intl20220809 的最新版本請查閱:https://next.api.alibabacloud.com/api-tools/sdk/Cloudauth-intl?version=2022-08-09&language=java-tea&tab=primer-doc
    </dependency>
  • 範例程式碼

    import com.aliyun.cloudauth_intl20220809.Client;
    import com.aliyun.cloudauth_intl20220809.models.InitializeRequest;
    import com.aliyun.cloudauth_intl20220809.models.InitializeResponse;
    import com.aliyun.cloudauth_intl20220809.models.InitializeResponseBody;
    import com.aliyun.teaopenapi.models.Config;
    
    public class Sample {
    
        private static Client client = null;
    
        static {
            try {
                // 構建 client
                client =  createClient();
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    
        public static void main(String[] args) throws Exception {
            try {
                // 1.構造請求參數(本樣本以Initialize介面為例,使用時請替換為您實際需要的介面)
                InitializeRequest request = new InitializeRequest();
                request.setProductCode("***");
                request.setMerchantBizId("***");
                request.setMerchantUserId("***");
                request.setMetaInfo("***");
                request.setDocType("********");
                request.setAuthorize("*");
    
                // 2.介面調用(本樣本以Initialize介面為例,使用時請替換為您實際需要的介面)
                InitializeResponse response = client.initialize(request);
    
                // 3.擷取調用結果
                Integer statusCode = response.getStatusCode();// 狀態代碼
                String code = response.getBody().getCode();// code碼
                InitializeResponseBody.InitializeResponseBodyResult result = response.getBody().getResult();// 返回詳細內容
            } catch (Exception e) {
                // 此處僅做列印展示,請謹慎對待異常處理,在工程專案中切勿直接忽略異常。
                e.printStackTrace();
            }
        }
    
        /**
         * 構建Client
         * @return
         * @throws Exception
         */
        public static Client createClient() throws Exception {
            Config config = new Config();
            // 設定憑據憑證
            config.setCredential(getCredentialClient());
            // 設定endpoint和regionId(本樣本以香港為例,使用時請替換為您實際需要的endpoint)
            config.setEndpoint("cloudauth-intl.cn-hongkong.aliyuncs.com");
            config.setRegionId("cn-hongkong");
            return new Client(config);
        }
    
        public static com.aliyun.credentials.Client getCredentialClient() throws Exception {
            com.aliyun.credentials.models.Config credentialConfig = new com.aliyun.credentials.models.Config();
            credentialConfig.setType("oidc_role_arn");
            // RAM角色名稱ARN,可以通過環境變數ALIBABA_CLOUD_ROLE_ARN設定RoleArn
            credentialConfig.setRoleArn("<RoleArn>");
            // OIDC供應商ARN,可以通過環境變數ALIBABA_CLOUD_OIDC_PROVIDER_ARN設定OidcProviderArn
            credentialConfig.setOidcProviderArn("<OidcProviderArn>");
            // OIDC Token檔案路徑,可以通過環境變數ALIBABA_CLOUD_OIDC_TOKEN_FILE設定OidcTokenFilePath
            credentialConfig.setOidcTokenFilePath("<OidcTokenFilePath>");
            // 角色會話名稱,可以通過環境變數ALIBABA_CLOUD_ROLE_SESSION_NAME設定RoleSessionName
            credentialConfig.setRoleSessionName("<RoleSessionName>");
            // 設定更小的權限原則,非必填。樣本值:{"Statement": [{"Action": ["*"],"Effect": "Allow","Resource": ["*"]}],"Version":"1"}
            credentialConfig.setPolicy("<Policy>");
            // 設定session到期時間
            credentialConfig.setRoleSessionExpiration(3600);
            return new com.aliyun.credentials.Client(credentialConfig);
        }
    }

原生http+AK

  • 程式設計語言:Java

  • 整合方式:原生HTTPS

  • 憑據初始化方式:使用RAM子使用者AK

  • 依賴:

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5.13</version>
    </dependency>
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.9.0</version>
    </dependency>
  • 範例程式碼

    import com.google.gson.Gson;
    import com.google.gson.GsonBuilder;
    import org.apache.http.client.methods.CloseableHttpResponse;
    import org.apache.http.client.methods.HttpPost;
    import org.apache.http.client.methods.HttpUriRequest;
    import org.apache.http.client.utils.URIBuilder;
    import org.apache.http.entity.ByteArrayEntity;
    import org.apache.http.entity.ContentType;
    import org.apache.http.impl.client.CloseableHttpClient;
    import org.apache.http.impl.client.HttpClients;
    import org.apache.http.util.EntityUtils;
    
    import javax.crypto.Mac;
    import javax.crypto.spec.SecretKeySpec;
    import javax.xml.bind.DatatypeConverter;
    import java.io.IOException;
    import java.io.UnsupportedEncodingException;
    import java.net.URISyntaxException;
    import java.net.URLEncoder;
    import java.nio.charset.StandardCharsets;
    import java.security.MessageDigest;
    import java.text.SimpleDateFormat;
    import java.util.*;
    
    public class Sample {
    
        /**
         * 請求樣本
         * @param args
         * @throws IOException
         */
        public static void main(String[] args) throws IOException {
    
            // 設定API名稱 (本樣本以Initialize介面為例,使用時請替換為您實際需要的介面)
            String action= "Initialize";
    
            // IDV介面版本號碼固定為2022-08-09
            String version=  "2022-08-09";
    
            // 設定endpoint(本樣本以香港為例,使用時請替換為您實際需要的endpoint)
            String host = "cloudauth-intl.cn-hongkong.aliyuncs.com";
    
            // 設定帳號ak,請不要將明文AK直接寫在代碼中,建議從環境變數中擷取,否則將導致安全性漏洞
            String accessKey = "<your access key id>";
            String accessSecret = "<your access key secret>";
    
            // API請求參數 (本樣本以Initialize介面為例,使用時請替換為您實際需要的介面)
            Map<String, String> params = new HashMap<>();
            params.put("MerchantBizId", "**********");
            params.put("ProductCode", "**********");
            params.put("MerchantUserId", "**********");
            params.put("MetaInfo", "**********");
    
            // 1、構建服務API請求
            CallRequest callRequest = buildIDVCallRequest(accessKey, accessSecret, action, version, host, params);
    
            // 2、調用IDV服務API
            String result = callApi(callRequest);
    
            // 3、輸出結果
            System.out.println(result);
        }
    
        /**
         * 構造請求IDV的請求參數,僅樣本參考,請根據實際情況傳入。
         * @return
         */
        private static CallRequest buildIDVCallRequest(String accessKeyId, String accessKeySecret, String action, String version, String host, Map<String, String> params) {
            // 請求地址
            String httpMethod = "POST";
            String canonicalUri = "/";
    
            CallRequest callRequest = new CallRequest(httpMethod, canonicalUri, host, action, version, accessKeyId, accessKeySecret, null);
    
            Gson gson = (new GsonBuilder()).disableHtmlEscaping().create();
            callRequest.body = gson.toJson(params).getBytes(StandardCharsets.UTF_8);
            callRequest.headers.put("content-type", "application/json");
            // 計算簽名並設定
            String authorization = getAuthorization(callRequest);
            callRequest.headers.put("Authorization", authorization);
            return callRequest;
        }
    
        private static String callApi(CallRequest callRequest) {
            try {
                // 通過HttpClient發送請求
                String url = "https://" + callRequest.host + callRequest.canonicalUri;
                URIBuilder uriBuilder = new URIBuilder(url);
                // 添加請求參數
                for (Map.Entry<String, Object> entry : callRequest.queryParam.entrySet()) {
                    uriBuilder.addParameter(entry.getKey(), String.valueOf(entry.getValue()));
                }
                HttpUriRequest httpRequest;
    
                HttpPost httpPost = new HttpPost(uriBuilder.build());
                if (callRequest.body != null) {
                    httpPost.setEntity(new ByteArrayEntity(callRequest.body, ContentType.create(callRequest.headers.get("content-type"))));
                }
                httpRequest = httpPost;
    
                // 添加http要求標頭
                for (Map.Entry<String, String> entry : callRequest.headers.entrySet()) {
                    httpRequest.addHeader(entry.getKey(), String.valueOf(entry.getValue()));
                }
                // 發送請求
                try (CloseableHttpClient httpClient = HttpClients.createDefault(); CloseableHttpResponse response = httpClient.execute(httpRequest)) {
                    String result = EntityUtils.toString(response.getEntity(), "UTF-8");
                    return result;
                } catch (IOException e) {
                    // 異常處理
                    System.out.println("Failed to send request");
                    e.printStackTrace();
                }
            } catch (URISyntaxException e) {
                // 異常處理
                System.out.println("Invalid URI syntax");
                e.printStackTrace();
            }
            return null;
        }
    
        /**
         * 該方法用於根據傳入的HTTP要求方法、正常化的URI、查詢參數等,計算並產生授權資訊。
         */
        private static String getAuthorization(CallRequest callRequest) {
            try {
                // 處理queryParam中參數值為List、Map類型的參數,將參數平鋪
                TreeMap<String, Object> newQueryParam = new TreeMap<>();
                processObject(newQueryParam, "", callRequest.queryParam);
                callRequest.queryParam = newQueryParam;
                // 步驟 1:拼接規範請求串
                // 請求參數,當請求的查詢字串為空白時,使用Null 字元串作為正常化查詢字串
                StringBuilder canonicalQueryString = new StringBuilder();
                callRequest.queryParam.entrySet().stream().map(entry -> percentCode(entry.getKey()) + "="
                        + percentCode(String.valueOf(entry.getValue()))).forEachOrdered(queryPart -> {
                    // 如果canonicalQueryString已經不是空的,則在查詢參數前添加"&"
                    if (canonicalQueryString.length() > 0) {
                        canonicalQueryString.append("&");
                    }
                    canonicalQueryString.append(queryPart);
                });
    
                // 計算請求體的雜湊值
                String requestPayload = ""; // 請求體,當請求本文為空白時,比如GET請求,RequestPayload固定為空白字串
                String hashedRequestPayload = callRequest.body != null ? sha256Hex(callRequest.body) : sha256Hex(requestPayload.getBytes(StandardCharsets.UTF_8));
                callRequest.headers.put("x-acs-content-sha256", hashedRequestPayload);
                // 構造要求標頭,多個正常化訊息頭,按照訊息頭名稱(小寫)的字元代碼順序以升序排列後拼接在一起
                StringBuilder canonicalHeaders = new StringBuilder();
                // 已簽名訊息頭列表,多個要求標頭名稱(小寫)按首字母升序排列並以英文分號(;)分隔
                StringBuilder signedHeadersSb = new StringBuilder();
                callRequest.headers.entrySet().stream().filter(entry -> entry.getKey().toLowerCase().startsWith("x-acs-") || "host".equalsIgnoreCase(entry.getKey()) || "content-type".equalsIgnoreCase(entry.getKey())).sorted(Map.Entry.comparingByKey()).forEach(entry -> {
                    String lowerKey = entry.getKey().toLowerCase();
                    String value = String.valueOf(entry.getValue()).trim();
                    canonicalHeaders.append(lowerKey).append(":").append(value).append("\n");
                    signedHeadersSb.append(lowerKey).append(";");
                });
                String signedHeaders = signedHeadersSb.substring(0, signedHeadersSb.length() - 1);
                String canonicalRequest = callRequest.httpMethod + "\n" + callRequest.canonicalUri + "\n" + canonicalQueryString + "\n" + canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;
    
                // 步驟 2:拼接待簽名字串
                String hashedCanonicalRequest = sha256Hex(canonicalRequest.getBytes(StandardCharsets.UTF_8)); // 計算正常化請求的雜湊值
                String stringToSign = "ACS3-HMAC-SHA256" + "\n" + hashedCanonicalRequest;
    
                // 步驟 3:計算簽名
                String signature = DatatypeConverter.printHexBinary(hmac256(callRequest.accessKeySecret.getBytes(StandardCharsets.UTF_8), stringToSign)).toLowerCase();
    
                // 步驟 4:拼接 Authorization
                return "ACS3-HMAC-SHA256" + " " + "Credential=" + callRequest.accessKeyId + ",SignedHeaders=" + signedHeaders + ",Signature=" + signature;
            } catch (Exception e) {
                // 異常處理
                e.printStackTrace();
                throw new RuntimeException("Get authorization failed.", e);
            }
        }
    
        /**
         * 遞迴處理對象,將複雜物件(如Map和List)展開為平面的索引值對
         *
         * @param map   原始的索引值對集合,將被遞迴地更新
         * @param key   當前處理的鍵,隨著遞迴的深入,鍵會帶有嵌套路徑資訊
         * @param value 對應於鍵的值,可以是嵌套的Map、List或其他類型
         */
        private static void processObject(Map<String, Object> map, String key, Object value) {
            // 如果值為空白,則無需進一步處理
            if (value == null) {
                return;
            }
            if (key == null) {
                key = "";
            }
            // 當值為List類型時,遍曆List中的每個元素,並遞迴處理
            if (value instanceof List<?>) {
                List<?> list = (List<?>) value;
                for (int i = 0; i < list.size(); ++i) {
                    processObject(map, key + "." + (i + 1), list.get(i));
                }
            } else if (value instanceof Map<?, ?>) {
                // 當值為Map類型時,遍曆Map中的每個索引值對,並遞迴處理
                Map<?, ?> subMap = (Map<?, ?>) value;
                for (Map.Entry<?, ?> entry : subMap.entrySet()) {
                    processObject(map, key + "." + entry.getKey().toString(), entry.getValue());
                }
            } else {
                // 對於以"."開頭的鍵,移除開頭的"."以保持鍵的連續性
                if (key.startsWith(".")) {
                    key = key.substring(1);
                }
                // 對於byte[]類型的值,將其轉換為UTF-8編碼的字串
                if (value instanceof byte[]) {
                    map.put(key, new String((byte[]) value, StandardCharsets.UTF_8));
                } else {
                    // 對於其他類型的值,直接轉換為字串
                    map.put(key, String.valueOf(value));
                }
            }
        }
    
        /**
         * 使用HmacSHA256演算法產生訊息認證碼(MAC)。
         *
         * @param secretKey 密鑰,用於產生MAC的密鑰,必須保密。
         * @param str       需要進行MAC認證的訊息。
         * @return 返回使用HmacSHA256演算法計算出的訊息認證碼。
         * @throws Exception 如果初始化MAC或計算MAC過程中遇到錯誤,則拋出異常。
         */
        public static byte[] hmac256(byte[] secretKey, String str) throws Exception {
            // 執行個體化HmacSHA256訊息認證碼產生器
            Mac mac = Mac.getInstance("HmacSHA256");
            // 建立密鑰規範,用於初始化MAC產生器
            SecretKeySpec secretKeySpec = new SecretKeySpec(secretKey, mac.getAlgorithm());
            // 初始化MAC產生器
            mac.init(secretKeySpec);
            // 計算訊息認證碼並返回
            return mac.doFinal(str.getBytes(StandardCharsets.UTF_8));
        }
    
        /**
         * 使用SHA-256演算法計算字串的雜湊值並以十六進位字串形式返回。
         *
         * @param input 需要進行SHA-256雜湊計算的位元組數組。
         * @return 計算結果為小寫十六進位字串。
         * @throws Exception 如果在擷取SHA-256訊息摘要執行個體時發生錯誤。
         */
        public static String sha256Hex(byte[] input) throws Exception {
            // 擷取SHA-256訊息摘要執行個體
            MessageDigest md = MessageDigest.getInstance("SHA-256");
            // 計算字串s的SHA-256雜湊值
            byte[] d = md.digest(input);
            // 將雜湊值轉換為小寫十六進位字串並返回
            return DatatypeConverter.printHexBinary(d).toLowerCase();
        }
    
        /**
         * 對指定的字串進行URL編碼。
         * 使用UTF-8編碼字元集對字串進行編碼,並對特定的字元進行替換,以符合URL編碼規範。
         *
         * @param str 需要進行URL編碼的字串。
         * @return 編碼後的字串。其中,加號"+"被替換為"%20",星號"*"被替換為"%2A",波浪號"%7E"被替換為"~"。
         */
        public static String percentCode(String str) {
            if (str == null) {
                throw new IllegalArgumentException("輸入字串不可為null");
            }
            try {
                return URLEncoder.encode(str, "UTF-8").replace("+", "%20").replace("*", "%2A").replace("%7E", "~");
            } catch (UnsupportedEncodingException e) {
                throw new RuntimeException("UTF-8編碼不被支援", e);
            }
        }
    
    
        private static class CallRequest {
            // HTTP Method
            private final String httpMethod;
            // 請求路徑,當資源路徑為空白時,使用正斜杠(/)作為CanonicalURI
            private final String canonicalUri;
            // endpoint
            private final String host;
            // API name
            private final String xAcsAction;
            // API version
            private final String xAcsVersion;
            // accessKeyId
            private final String accessKeyId;
            // accessKeySecret
            private final String accessKeySecret;
            // STS令牌,非STS鑒權方式時,該參數為空白
            private final String securityToken;
            // headers
            TreeMap<String, String> headers = new TreeMap<>();
            // body參數對應的位元組數組,請求參數在中繼資料中顯示"in":"body"或"in": "formData",表示參數放在body中
            byte[] body;
            // query參數,請求參數在中繼資料中顯示"in":"query",表示參數拼接在請求URL上
            TreeMap<String, Object> queryParam = new TreeMap<>();
    
            public CallRequest(String httpMethod, String canonicalUri, String host, String xAcsAction, String xAcsVersion, String accessKeyId, String accessKeySecret, String securityToken) {
                this.httpMethod = httpMethod;
                this.canonicalUri = canonicalUri;
                this.host = host;
                this.xAcsAction = xAcsAction;
                this.xAcsVersion = xAcsVersion;
                this.accessKeyId = accessKeyId;
                this.accessKeySecret = accessKeySecret;
                this.securityToken = securityToken;
                initHeader();
            }
    
            // init headers
            private void initHeader() {
                headers.put("host", host);
                headers.put("x-acs-action", xAcsAction);
                headers.put("x-acs-version", xAcsVersion);
                SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
                sdf.setTimeZone(new SimpleTimeZone(0, "GMT")); // 設定日期格式化時區為GMT
                headers.put("x-acs-date", sdf.format(new Date()));
                headers.put("x-acs-signature-nonce", UUID.randomUUID().toString());
                if (securityToken != null) {
                    headers.put("x-acs-security-token", securityToken);
                }
            }
        }
    }
    

原生http+OIDCRoleArn

  • 程式設計語言:Java

  • 整合方式:原生HTTPS

  • 憑據初始化方式:使用OIDCRoleArn

  • 依賴:

    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.5.13</version>
    </dependency>
    <dependency>
        <groupId>com.google.code.gson</groupId>
        <artifactId>gson</artifactId>
        <version>2.9.0</version>
    </dependency>
    <dependency>
        <groupId>com.aliyun</groupId>
        <artifactId>sts20150401</artifactId>
        <version>1.1.7</version>
    </dependency>
  • 範例程式碼

    import com.aliyun.sts20150401.models.AssumeRoleWithOIDCResponse;
    import com.aliyun.sts20150401.models.AssumeRoleWithOIDCResponseBody;
    import com.aliyun.tea.TeaException;
    import com.google.gson.Gson;
    import com.google.gson.GsonBuilder;
    import org.apache.http.client.methods.*;
    import org.apache.http.client.utils.URIBuilder;
    import org.apache.http.entity.ByteArrayEntity;
    import org.apache.http.impl.client.CloseableHttpClient;
    import org.apache.http.impl.client.HttpClients;
    import org.apache.http.util.EntityUtils;
    import org.apache.http.entity.ContentType;
    
    import javax.crypto.Mac;
    import javax.crypto.spec.SecretKeySpec;
    import javax.xml.bind.DatatypeConverter;
    import java.io.IOException;
    import java.io.UnsupportedEncodingException;
    import java.net.URISyntaxException;
    import java.net.URLEncoder;
    import java.nio.charset.StandardCharsets;
    import java.security.MessageDigest;
    import java.text.SimpleDateFormat;
    import java.util.*;
    
    public class Sample {
    
        /**
         * STS用戶端,用於擷取臨時安全性權杖(STS Token)
         */
        private static com.aliyun.sts20150401.Client stsClient = null;
    
        static {
            com.aliyun.teaopenapi.models.Config config = new com.aliyun.teaopenapi.models.Config();
            // 設定sts服務的Endpoint(本樣本以日本東京為例,使用時請替換為您實際需要的endpoint)
            config.endpoint = "sts.ap-northeast-1.aliyuncs.com";
            try {
                stsClient = new com.aliyun.sts20150401.Client(config);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
    
        /**
         * 請求樣本
         * @param args
         * @throws IOException
         */
        public static void main(String[] args) throws IOException {
    
            // 1、基於OIDC角色擷取臨時安全性權杖(STS Token),有有效期間,實際生產中可在有效期間內緩衝使用
    AssumeRoleWithOIDCResponseBody.AssumeRoleWithOIDCResponseBodyCredentials credentials = getSTSToken();
    
            // 設定API名稱 (本樣本以Initialize介面為例,使用時請替換為您實際需要的介面)
            String action= "Initialize";
    
            // IDV介面版本號碼固定為2022-08-09
            String version=  "2022-08-09";
            // 設定endpoint(本樣本以香港為例,使用時請替換為您實際需要的endpoint)
            String host = "cloudauth-intl.cn-hongkong.aliyuncs.com";
    
            // API請求參數(僅樣本參考,實際開發中需要根據實際情況傳入)
            Map<String, String> params = new HashMap<>();
            params.put("MerchantBizId", "**********");
            params.put("ProductCode", "**********");
            params.put("MerchantUserId", "**********");
            params.put("MetaInfo", "**********");
    
            // 2、構建服務API請求
            CallRequest callRequest = buildIDVCallRequest(credentials, action, version, host, params);
    
    
            // 3、調用IDV服務API
            String result = callApi(callRequest);
    
            // 4、輸出結果
            System.out.println(result);
        }
    
        /**
         * 構造請求IDV的請求參數,僅樣本參考,請根據實際情況傳入。
         * @return
         */
        private static CallRequest buildIDVCallRequest(AssumeRoleWithOIDCResponseBody.AssumeRoleWithOIDCResponseBodyCredentials credentials, String action, String version, String host, Map<String, String> params) {
            // 請求地址
            String httpMethod = "POST";
            String canonicalUri = "/";
    
            CallRequest callRequest = new CallRequest(httpMethod, canonicalUri, host, action, version, credentials.getAccessKeyId(), credentials.getAccessKeySecret(), credentials.getSecurityToken());
    
            Gson gson = (new GsonBuilder()).disableHtmlEscaping().create();
            callRequest.body = gson.toJson(params).getBytes(StandardCharsets.UTF_8);
            callRequest.headers.put("content-type", "application/json");
            // 計算簽名並設定
            String authorization = getAuthorization(callRequest);
            callRequest.headers.put("Authorization", authorization);
            return callRequest;
        }
    
    
        /**
         * 擷取扮演角色的臨時身份憑證(STS token)
         * STS的參考文檔:https://www.alibabacloud.com/help/zh/ram/product-overview/what-is-sts
         * 本樣本是基於AssumeRoleWithOIDC方式,另外還可以通過AssumeRole、AssumeRoleWithOIDC等擷取臨時身份憑證,參考文檔:https://www.alibabacloud.com/help/zh/ram/developer-reference/api-sts-2015-04-01-dir-role-assuming
         * @return
         */
        public static AssumeRoleWithOIDCResponseBody.AssumeRoleWithOIDCResponseBodyCredentials getSTSToken() {
            com.aliyun.sts20150401.models.AssumeRoleWithOIDCRequest assumeRoleWithOIDCRequest = new com.aliyun.sts20150401.models.AssumeRoleWithOIDCRequest()
                    .setOIDCProviderArn("***")
                    .setRoleArn("***")
                    .setDurationSeconds(3600L)
                    .setOIDCToken("***")
                    .setRoleSessionName("***");
            com.aliyun.teautil.models.RuntimeOptions runtime = new com.aliyun.teautil.models.RuntimeOptions();
            try {
                // 複製代碼運行請自行列印 API 的傳回值
                AssumeRoleWithOIDCResponse assumeRoleWithOIDCResponse = stsClient.assumeRoleWithOIDCWithOptions(assumeRoleWithOIDCRequest, runtime);
                return assumeRoleWithOIDCResponse.body.credentials;
            } catch (TeaException error) {
                // 此處僅做列印展示,請謹慎對待異常處理,在工程專案中切勿直接忽略異常。
                // 錯誤 message
                System.out.println(error.getMessage());
                // 診斷地址
                System.out.println(error.getData().get("Recommend"));
                com.aliyun.teautil.Common.assertAsString(error.message);
                throw new RuntimeException(error);
            } catch (Exception _error) {
                TeaException error = new TeaException(_error.getMessage(), _error);
                // 此處僅做列印展示,請謹慎對待異常處理,在工程專案中切勿直接忽略異常。
                // 錯誤 message
                System.out.println(error.getMessage());
                // 診斷地址
                System.out.println(error.getData().get("Recommend"));
                com.aliyun.teautil.Common.assertAsString(error.message);
                throw new RuntimeException(error);
            }
        }
    
        private static String callApi(CallRequest callRequest) {
            try {
                // 通過HttpClient發送請求
                String url = "https://" + callRequest.host + callRequest.canonicalUri;
                URIBuilder uriBuilder = new URIBuilder(url);
                // 添加請求參數
                for (Map.Entry<String, Object> entry : callRequest.queryParam.entrySet()) {
                    uriBuilder.addParameter(entry.getKey(), String.valueOf(entry.getValue()));
                }
                HttpUriRequest httpRequest;
    
                HttpPost httpPost = new HttpPost(uriBuilder.build());
                if (callRequest.body != null) {
                    httpPost.setEntity(new ByteArrayEntity(callRequest.body, ContentType.create(callRequest.headers.get("content-type"))));
                }
                httpRequest = httpPost;
    
                // 添加http要求標頭
                for (Map.Entry<String, String> entry : callRequest.headers.entrySet()) {
                    httpRequest.addHeader(entry.getKey(), String.valueOf(entry.getValue()));
                }
                // 發送請求
                try (CloseableHttpClient httpClient = HttpClients.createDefault(); CloseableHttpResponse response = httpClient.execute(httpRequest)) {
                    String result = EntityUtils.toString(response.getEntity(), "UTF-8");
                    return result;
                } catch (IOException e) {
                    // 異常處理
                    System.out.println("Failed to send request");
                    e.printStackTrace();
                }
            } catch (URISyntaxException e) {
                // 異常處理
                System.out.println("Invalid URI syntax");
                e.printStackTrace();
            }
            return null;
        }
    
        /**
         * 該方法用於根據傳入的HTTP要求方法、正常化的URI、查詢參數等,計算並產生授權資訊。
         */
        private static String getAuthorization(CallRequest callRequest) {
            try {
                // 處理queryParam中參數值為List、Map類型的參數,將參數平鋪
                TreeMap<String, Object> newQueryParam = new TreeMap<>();
                processObject(newQueryParam, "", callRequest.queryParam);
                callRequest.queryParam = newQueryParam;
                // 步驟 1:拼接規範請求串
                // 請求參數,當請求的查詢字串為空白時,使用Null 字元串作為正常化查詢字串
                StringBuilder canonicalQueryString = new StringBuilder();
                callRequest.queryParam.entrySet().stream().map(entry -> percentCode(entry.getKey()) + "="
                        + percentCode(String.valueOf(entry.getValue()))).forEachOrdered(queryPart -> {
                    // 如果canonicalQueryString已經不是空的,則在查詢參數前添加"&"
                    if (canonicalQueryString.length() > 0) {
                        canonicalQueryString.append("&");
                    }
                    canonicalQueryString.append(queryPart);
                });
    
                // 計算請求體的雜湊值
                String requestPayload = ""; // 請求體,當請求本文為空白時,比如GET請求,RequestPayload固定為空白字串
                String hashedRequestPayload = callRequest.body != null ? sha256Hex(callRequest.body) : sha256Hex(requestPayload.getBytes(StandardCharsets.UTF_8));
                callRequest.headers.put("x-acs-content-sha256", hashedRequestPayload);
                // 構造要求標頭,多個正常化訊息頭,按照訊息頭名稱(小寫)的字元代碼順序以升序排列後拼接在一起
                StringBuilder canonicalHeaders = new StringBuilder();
                // 已簽名訊息頭列表,多個要求標頭名稱(小寫)按首字母升序排列並以英文分號(;)分隔
                StringBuilder signedHeadersSb = new StringBuilder();
                callRequest.headers.entrySet().stream().filter(entry -> entry.getKey().toLowerCase().startsWith("x-acs-") || "host".equalsIgnoreCase(entry.getKey()) || "content-type".equalsIgnoreCase(entry.getKey())).sorted(Map.Entry.comparingByKey()).forEach(entry -> {
                    String lowerKey = entry.getKey().toLowerCase();
                    String value = String.valueOf(entry.getValue()).trim();
                    canonicalHeaders.append(lowerKey).append(":").append(value).append("\n");
                    signedHeadersSb.append(lowerKey).append(";");
                });
                String signedHeaders = signedHeadersSb.substring(0, signedHeadersSb.length() - 1);
                String canonicalRequest = callRequest.httpMethod + "\n" + callRequest.canonicalUri + "\n" + canonicalQueryString + "\n" + canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;
    
                // 步驟 2:拼接待簽名字串
                String hashedCanonicalRequest = sha256Hex(canonicalRequest.getBytes(StandardCharsets.UTF_8)); // 計算正常化請求的雜湊值
                String stringToSign = "ACS3-HMAC-SHA256" + "\n" + hashedCanonicalRequest;
    
                // 步驟 3:計算簽名
                String signature = DatatypeConverter.printHexBinary(hmac256(callRequest.accessKeySecret.getBytes(StandardCharsets.UTF_8), stringToSign)).toLowerCase();
    
                // 步驟 4:拼接 Authorization
                return "ACS3-HMAC-SHA256" + " " + "Credential=" + callRequest.accessKeyId + ",SignedHeaders=" + signedHeaders + ",Signature=" + signature;
            } catch (Exception e) {
                // 異常處理
                e.printStackTrace();
                throw new RuntimeException("Get authorization failed.", e);
            }
        }
    
        /**
         * 遞迴處理對象,將複雜物件(如Map和List)展開為平面的索引值對
         *
         * @param map   原始的索引值對集合,將被遞迴地更新
         * @param key   當前處理的鍵,隨著遞迴的深入,鍵會帶有嵌套路徑資訊
         * @param value 對應於鍵的值,可以是嵌套的Map、List或其他類型
         */
        private static void processObject(Map<String, Object> map, String key, Object value) {
            // 如果值為空白,則無需進一步處理
            if (value == null) {
                return;
            }
            if (key == null) {
                key = "";
            }
            // 當值為List類型時,遍曆List中的每個元素,並遞迴處理
            if (value instanceof List<?>) {
                List<?> list = (List<?>) value;
                for (int i = 0; i < list.size(); ++i) {
                    processObject(map, key + "." + (i + 1), list.get(i));
                }
            } else if (value instanceof Map<?, ?>) {
                // 當值為Map類型時,遍曆Map中的每個索引值對,並遞迴處理
                Map<?, ?> subMap = (Map<?, ?>) value;
                for (Map.Entry<?, ?> entry : subMap.entrySet()) {
                    processObject(map, key + "." + entry.getKey().toString(), entry.getValue());
                }
            } else {
                // 對於以"."開頭的鍵,移除開頭的"."以保持鍵的連續性
                if (key.startsWith(".")) {
                    key = key.substring(1);
                }
                // 對於byte[]類型的值,將其轉換為UTF-8編碼的字串
                if (value instanceof byte[]) {
                    map.put(key, new String((byte[]) value, StandardCharsets.UTF_8));
                } else {
                    // 對於其他類型的值,直接轉換為字串
                    map.put(key, String.valueOf(value));
                }
            }
        }
    
        /**
         * 使用HmacSHA256演算法產生訊息認證碼(MAC)。
         *
         * @param secretKey 密鑰,用於產生MAC的密鑰,必須保密。
         * @param str       需要進行MAC認證的訊息。
         * @return 返回使用HmacSHA256演算法計算出的訊息認證碼。
         * @throws Exception 如果初始化MAC或計算MAC過程中遇到錯誤,則拋出異常。
         */
        public static byte[] hmac256(byte[] secretKey, String str) throws Exception {
            // 執行個體化HmacSHA256訊息認證碼產生器
            Mac mac = Mac.getInstance("HmacSHA256");
            // 建立密鑰規範,用於初始化MAC產生器
            SecretKeySpec secretKeySpec = new SecretKeySpec(secretKey, mac.getAlgorithm());
            // 初始化MAC產生器
            mac.init(secretKeySpec);
            // 計算訊息認證碼並返回
            return mac.doFinal(str.getBytes(StandardCharsets.UTF_8));
        }
    
        /**
         * 使用SHA-256演算法計算字串的雜湊值並以十六進位字串形式返回。
         *
         * @param input 需要進行SHA-256雜湊計算的位元組數組。
         * @return 計算結果為小寫十六進位字串。
         * @throws Exception 如果在擷取SHA-256訊息摘要執行個體時發生錯誤。
         */
        public static String sha256Hex(byte[] input) throws Exception {
            // 擷取SHA-256訊息摘要執行個體
            MessageDigest md = MessageDigest.getInstance("SHA-256");
            // 計算字串s的SHA-256雜湊值
            byte[] d = md.digest(input);
            // 將雜湊值轉換為小寫十六進位字串並返回
            return DatatypeConverter.printHexBinary(d).toLowerCase();
        }
    
        /**
         * 對指定的字串進行URL編碼。
         * 使用UTF-8編碼字元集對字串進行編碼,並對特定的字元進行替換,以符合URL編碼規範。
         *
         * @param str 需要進行URL編碼的字串。
         * @return 編碼後的字串。其中,加號"+"被替換為"%20",星號"*"被替換為"%2A",波浪號"%7E"被替換為"~"。
         */
        public static String percentCode(String str) {
            if (str == null) {
                throw new IllegalArgumentException("輸入字串不可為null");
            }
            try {
                return URLEncoder.encode(str, "UTF-8").replace("+", "%20").replace("*", "%2A").replace("%7E", "~");
            } catch (UnsupportedEncodingException e) {
                throw new RuntimeException("UTF-8編碼不被支援", e);
            }
        }
    
    
        private static class CallRequest {
            // HTTP Method
            private final String httpMethod;
            // 請求路徑,當資源路徑為空白時,使用正斜杠(/)作為CanonicalURI
            private final String canonicalUri;
            // endpoint
            private final String host;
            // API name
            private final String xAcsAction;
            // API version
            private final String xAcsVersion;
            // accessKeyId
            private final String accessKeyId;
            // accessKeySecret
            private final String accessKeySecret;
            // STS令牌,非STS鑒權方式時,該參數為空白
            private final String securityToken;
            // headers
            TreeMap<String, String> headers = new TreeMap<>();
            // body參數對應的位元組數組,請求參數在中繼資料中顯示"in":"body"或"in": "formData",表示參數放在body中
            byte[] body;
            // query參數,請求參數在中繼資料中顯示"in":"query",表示參數拼接在請求URL上
            TreeMap<String, Object> queryParam = new TreeMap<>();
    
            public CallRequest(String httpMethod, String canonicalUri, String host, String xAcsAction, String xAcsVersion, String accessKeyId, String accessKeySecret, String securityToken) {
                this.httpMethod = httpMethod;
                this.canonicalUri = canonicalUri;
                this.host = host;
                this.xAcsAction = xAcsAction;
                this.xAcsVersion = xAcsVersion;
                this.accessKeyId = accessKeyId;
                this.accessKeySecret = accessKeySecret;
                this.securityToken = securityToken;
                initHeader();
            }
    
            // init headers
            private void initHeader() {
                headers.put("host", host);
                headers.put("x-acs-action", xAcsAction);
                headers.put("x-acs-version", xAcsVersion);
                SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
                sdf.setTimeZone(new SimpleTimeZone(0, "GMT")); // 設定日期格式化時區為GMT
                headers.put("x-acs-date", sdf.format(new Date()));
                headers.put("x-acs-signature-nonce", UUID.randomUUID().toString());
                if (securityToken != null) {
                    headers.put("x-acs-security-token", securityToken);
                }
            }
        }
    }