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腾讯OCR签名算法

news 来源：原创 2024/9/20 11:54:01

云服务器签名方法 v3-调用方式-API 中心-腾讯云

一，签名算法-官网

copy官网

package com.smcv.customer.service.util;import org.springframework.http.HttpHeaders;import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
import java.util.TreeMap;public class TencentCloudAPITC3Demo {private final static Charset UTF8 = StandardCharsets.UTF_8;// 需要设置环境变量 TENCENTCLOUD_SECRET_ID，值为示例的 AKIDz8krbsJ5yKBZQpn74WFkmLPx3*******
//    private final static String SECRET_ID = System.getenv("TENCENTCLOUD_SECRET_ID");private final static String SECRET_ID = "AKIDBE4g3B4";// 需要设置环境变量 TENCENTCLOUD_SECRET_KEY，值为示例的 Gu5t9xGARNpq86cd98joQYCN3*******
//    private final static String SECRET_KEY = System.getenv("TENCENTCLOUD_SECRET_KEY");private final static String SECRET_KEY = "tWt2uXu1uc";private final static String CT_JSON = "application/json; charset=utf-8";public static byte[] hmac256(byte[] key, String msg) throws Exception {Mac mac = Mac.getInstance("HmacSHA256");SecretKeySpec secretKeySpec = new SecretKeySpec(key, mac.getAlgorithm());mac.init(secretKeySpec);return mac.doFinal(msg.getBytes(UTF8));}public static String sha256Hex(String s) throws Exception {MessageDigest md = MessageDigest.getInstance("SHA-256");byte[] d = md.digest(s.getBytes(UTF8));return DatatypeConverter.printHexBinary(d).toLowerCase();}public static void main(String[] args) throws Exception {String service = "cvm";String host = "cvm.tencentcloudapi.com";
//        String region = "ap-guangzhou";
//        String action = "DescribeInstances";String region = "ap-shanghai";String action = "SmartStructuralOCRV2";String version = "2018-11-19";String algorithm = "TC3-HMAC-SHA256";
//        String timestamp = "1551113065";String timestamp = String.valueOf(System.currentTimeMillis() / 1000);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 注意时区，否则容易出错sdf.setTimeZone(TimeZone.getTimeZone("UTC"));String date = sdf.format(new Date(Long.valueOf(timestamp + "000")));// ************* 步骤 1：拼接规范请求串 *************String httpRequestMethod = "POST";String canonicalUri = "/";String canonicalQueryString = "";String canonicalHeaders = "content-type:application/json; charset=utf-8\n" + "host:" + host + "\n" + "x-tc-action:" + action.toLowerCase() + "\n";String signedHeaders = "content-type;host;x-tc-action";String payload = "{\"Limit\": 1, \"Filters\": [{\"Values\": [\"\\u672a\\u547d\\u540d\"], \"Name\": \"instance-name\"}]}";String hashedRequestPayload = sha256Hex(payload);String canonicalRequest = httpRequestMethod + "\n" + canonicalUri + "\n" + canonicalQueryString + "\n" + canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;System.out.println(canonicalRequest);// ************* 步骤 2：拼接待签名字符串 *************String credentialScope = date + "/" + service + "/" + "tc3_request";String hashedCanonicalRequest = sha256Hex(canonicalRequest);String stringToSign = algorithm + "\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;System.out.println(stringToSign);// ************* 步骤 3：计算签名 *************byte[] secretDate = hmac256(("TC3" + SECRET_KEY).getBytes(UTF8), date);byte[] secretService = hmac256(secretDate, service);byte[] secretSigning = hmac256(secretService, "tc3_request");String signature = DatatypeConverter.printHexBinary(hmac256(secretSigning, stringToSign)).toLowerCase();System.out.println(signature);// ************* 步骤 4：拼接 Authorization *************String authorization = algorithm + " " + "Credential=" + SECRET_ID + "/" + credentialScope + ", " + "SignedHeaders=" + signedHeaders + ", " + "Signature=" + signature;System.out.println(authorization);TreeMap<String, String> headers = new TreeMap<String, String>();headers.put("Authorization", authorization);headers.put("Content-Type", CT_JSON);headers.put("Host", host);headers.put("X-TC-Action", action);headers.put("X-TC-Timestamp", timestamp);headers.put("X-TC-Version", version);headers.put("X-TC-Region", region);StringBuilder sb = new StringBuilder();sb.append("curl -X POST https://").append(host).append(" -H \"Authorization: ").append(authorization).append("\"").append(" -H \"Content-Type: application/json; charset=utf-8\"").append(" -H \"Host: ").append(host).append("\"").append(" -H \"X-TC-Action: ").append(action).append("\"").append(" -H \"X-TC-Timestamp: ").append(timestamp).append("\"").append(" -H \"X-TC-Version: ").append(version).append("\"").append(" -H \"X-TC-Region: ").append(region).append("\"").append(" -d '").append(payload).append("'");System.out.println(sb.toString());}public static HttpHeaders buildHeader(String payload) throws Exception {String service = "ocr";String host = "ocr.tencentcloudapi.com";String region = "ap-shanghai";String action = "SmartStructuralOCRV2";String version = "2018-11-19";String algorithm = "TC3-HMAC-SHA256";String timestamp = String.valueOf(System.currentTimeMillis() / 1000);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 注意时区，否则容易出错sdf.setTimeZone(TimeZone.getTimeZone("UTC"));String date = sdf.format(new Date(Long.valueOf(timestamp + "000")));// ************* 步骤 1：拼接规范请求串 *************String httpRequestMethod = "POST";String canonicalUri = "/";String canonicalQueryString = "";String canonicalHeaders = "content-type:application/json; charset=utf-8\n" + "host:" + host + "\n" + "x-tc-action:" + action.toLowerCase() + "\n";String signedHeaders = "content-type;host;x-tc-action";//        String payload = "{\"Limit\": 1, \"Filters\": [{\"Values\": [\"\\u672a\\u547d\\u540d\"], \"Name\": \"instance-name\"}]}";String hashedRequestPayload = sha256Hex(payload);String canonicalRequest = httpRequestMethod + "\n" + canonicalUri + "\n" + canonicalQueryString + "\n" + canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;System.out.println(canonicalRequest);// ************* 步骤 2：拼接待签名字符串 *************String credentialScope = date + "/" + service + "/" + "tc3_request";String hashedCanonicalRequest = sha256Hex(canonicalRequest);String stringToSign = algorithm + "\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;System.out.println(stringToSign);// ************* 步骤 3：计算签名 *************byte[] secretDate = hmac256(("TC3" + SECRET_KEY).getBytes(UTF8), date);byte[] secretService = hmac256(secretDate, service);byte[] secretSigning = hmac256(secretService, "tc3_request");String signature = DatatypeConverter.printHexBinary(hmac256(secretSigning, stringToSign)).toLowerCase();System.out.println(signature);// ************* 步骤 4：拼接 Authorization *************String authorization = algorithm + " " + "Credential=" + SECRET_ID + "/" + credentialScope + ", " + "SignedHeaders=" + signedHeaders + ", " + "Signature=" + signature;System.out.println(authorization);HttpHeaders httpHeaders = new HttpHeaders();httpHeaders.add("Authorization", authorization);httpHeaders.add("Content-Type", CT_JSON);httpHeaders.add("Host", host);httpHeaders.add("X-TC-Action", action);httpHeaders.add("X-TC-Timestamp", timestamp);httpHeaders.add("X-TC-Version", version);httpHeaders.add("X-TC-Region", region);StringBuilder sb = new StringBuilder();sb.append("curl -X POST https://").append(host).append(" -H \"Authorization: ").append(authorization).append("\"").append(" -H \"Content-Type: application/json; charset=utf-8\"").append(" -H \"Host: ").append(host).append("\"").append(" -H \"X-TC-Action: ").append(action).append("\"").append(" -H \"X-TC-Timestamp: ").append(timestamp).append("\"").append(" -H \"X-TC-Version: ").append(version).append("\"").append(" -H \"X-TC-Region: ").append(region).append("\"").append(" -d '").append(payload).append("'");System.out.println(sb.toString());return httpHeaders;}
}

调用

     HttpHeaders headers = tencentCloudAPITC3Demo.buildHeader(req);ResponseEntity<String> stringResponseEntity = restTemplateUtils.serviceApiInvoke(req, tencentOcrUrl, headers);

    public ResponseEntity<String> serviceApiInvoke(String requestBody, String url, HttpHeaders headers) {// 创建 HttpEntity 对象，用于设置请求体和请求头HttpEntity<String> httpEntity = new HttpEntity<>(requestBody, headers);// 发送 POST 请求并获取响应ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.POST, httpEntity, String.class);// 输出响应结果return response;}

响应乱码问题

方案1

    public ResponseEntity<String> serviceApiInvoke(String requestBody, String url, HttpHeaders headers) {// 创建 HttpEntity 对象，用于设置请求体和请求头HttpEntity<String> httpEntity = new HttpEntity<>(requestBody, headers);List<HttpMessageConverter<?>> messageConverters = restTemplate.getMessageConverters();for (HttpMessageConverter<?> messageConverter : messageConverters) {if (messageConverter instanceof StringHttpMessageConverter) {((StringHttpMessageConverter) messageConverter).setDefaultCharset(Charset.forName("UTF-8"));}}// 发送 POST 请求并获取响应ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.POST, httpEntity, String.class);// 输出响应结果return response;}

方案2

    public String serviceApiInvokeUtf8(String requestBody, String url, HttpHeaders headers) {
//        HttpHeaders httpHeaders = new HttpHeaders();// 可以设置一些参数HttpEntity httpEntity = new HttpEntity(requestBody,headers);ResponseEntity<byte[]> exchange = restTemplate.exchange(url, HttpMethod.POST, httpEntity, byte[].class);try {String result = new String(exchange.getBody(), "UTF-8");return result;} catch (UnsupportedEncodingException e) {e.printStackTrace();}return null;}

二，签名算法-自定义

据说也是copy官网

1，签名失败问题

背景，生产上已经跑了很长一段时间，突然有一天接口突然调不通了（什么都没动的情况下，很奇异），报错如下

2，响应报错信息

签名失败

AuthFailure.SignatureFailure

{"body": "{\"Response\":{\"Error\":{\"Code\":\"AuthFailure.SignatureFailure\",\"Message\":\"è¯·æ±ç¾åéªè¯å¤±è´¥ï¼è¯·æ£æ¥æ¨çç¾åè®¡ç®æ¯å¦æ£ç¡®ã\"},\"RequestId\":\"ebcf25f4-ee15-4286-8366-7352414e69e4\"}}","headers": {"Date": ["Thu, 01 Aug 2024 01:29:49 GMT"],"Content-Type": ["application/json"],"Content-Length": ["195"],"Connection": ["keep-alive"]},"statusCode": 4,"statusCodeValue": 200
}

3，算法代码

package com.smcv.customer.service.util;import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpHeaders;import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;@Slf4j
public class PdfUtils {//    FailedOperation.DownLoadError	文件下载失败。
//    FailedOperation.ImageDecodeFailed	图片解码失败。
//    FailedOperation.OcrFailed	OCR识别失败。
//    FailedOperation.UnKnowError	未知错误。
//    FailedOperation.UnOpenError	服务未开通。
//    InvalidParameterValue.InvalidParameterValueLimit	参数值错误。
//    LimitExceeded.TooLargeFileError	文件内容太大。
//    ResourcesSoldOut.ChargeStatusException	计费状态异常private final static Charset UTF8 = StandardCharsets.UTF_8;// 需要设置环境变量 TENCENTCLOUD_SECRET_ID，值为示例的 AKIDz8krbsJ5**********mLPx3EXAMPLprivate final static String SECRET_ID = "";// 需要设置环境变量 TENCENTCLOUD_SECRET_KEY，值为示例的 Gu5t9xGAR***********EXAMPLEprivate final static String SECRET_KEY = "";private final static String CT_JSON = "application/json";public static byte[] hmac256(byte[] key, String msg) throws Exception {Mac mac = Mac.getInstance("HmacSHA256");SecretKeySpec secretKeySpec = new SecretKeySpec(key, mac.getAlgorithm());mac.init(secretKeySpec);return mac.doFinal(msg.getBytes(UTF8));}public static String sha256Hex(String s) throws Exception {MessageDigest md = MessageDigest.getInstance("SHA-256");byte[] d = md.digest(s.getBytes(UTF8));return DatatypeConverter.printHexBinary(d).toLowerCase();}public static HttpHeaders getTncOrc(String payload) throws Exception {String service = "ocr";String host = "ocr.tencentcloudapi.com";String region = "ap-shanghai";String action = "SmartStructuralOCRV2";String tag = "cdf41db8-29e9-11ee-9ed1-5254005e545b";String version = "2018-11-19";String algorithm = "TC3-HMAC-SHA256";String timestamp = String.valueOf(System.currentTimeMillis() / 1000);//String timestamp = "1689760798";SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 注意时区，否则容易出错sdf.setTimeZone(TimeZone.getTimeZone("UTC"));String date = sdf.format(new Date(Long.parseLong(timestamp + "000")));// ************* 步骤 1：拼接规范请求串 *************String httpRequestMethod = "POST";String canonicalUri = "/";String canonicalQueryString = "";String canonicalHeaders = "content-type:application/json\n" + "host:" + host + "\n" + "x-tc-action:" + action.toLowerCase() + "\n";String signedHeaders = "content-type;host;x-tc-action";String hashedRequestPayload = sha256Hex(payload);String canonicalRequest = httpRequestMethod + "\n" + canonicalUri + "\n" + canonicalQueryString + "\n"+ canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;// ************* 步骤 2：拼接待签名字符串 *************String credentialScope = date + "/" + service + "/" + "tc3_request";String hashedCanonicalRequest = sha256Hex(canonicalRequest);String stringToSign = algorithm + "\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;// ************* 步骤 3：计算签名 *************byte[] secretDate = hmac256(("TC3" + SECRET_KEY).getBytes(UTF8), date);byte[] secretService = hmac256(secretDate, service);byte[] secretSigning = hmac256(secretService, "tc3_request");String signature = DatatypeConverter.printHexBinary(hmac256(secretSigning, stringToSign)).toLowerCase();// ************* 步骤 4：拼接 Authorization *************String authorization = algorithm + " " + "Credential=" + SECRET_ID + "/" + credentialScope + ", "+ "SignedHeaders=" + signedHeaders + ", " + "Signature=" + signature;HttpHeaders headers = new HttpHeaders();headers.add("Authorization", authorization);headers.add("Content-Type", CT_JSON);headers.add("Host", host);headers.add("X-TC-Action", action);headers.add("X-TC-Timestamp", timestamp);headers.add("X-TC-Version", version);headers.add("X-TC-Region", region);headers.add("X-TC-Language", "zh-CN");//
//        StringBuilder sb = new StringBuilder();
//        sb.append("curl -X POST https://").append(host)
//                .append(" -H \"Authorization: ").append(authorization).append("\"")
//                .append(" -H \"Content-Type: ").append(CT_JSON).append("\"")
//                .append(" -H \"Host: ").append(host).append("\"")
//                .append(" -H \"X-TC-Action: ").append(action).append("\"")
//                .append(" -H \"X-TC-Timestamp: ").append(timestamp).append("\"")
//                .append(" -H \"X-TC-Version: ").append(version).append("\"")
//                .append(" -H \"X-TC-Region: ").append(region).append("\"")
//                .append(" -H \"X-TC-Language: ").append("zh-CN").append("\"")
//                .append(" -d '").append(payload).append("'");
//        log.info(sb.toString());return headers;}}

4，原因

对比官网签名算法，主要区别在于编码方式

处理方案：替换以下内容，接口正常了。改回老的还是签名失败（交叉对比确认，肯定是签名失败了）

private final static String CT_JSON = "application/json";

private final static String CT_JSON = "application/json; charset=utf-8";

String canonicalHeaders = "content-type:application/json\n" + "host:" + host + "\n" + "x-tc-action:" + action.toLowerCase() + "\n";

String canonicalHeaders = "content-type:application/json; charset=utf-8\n" + "host:" + host + "\n" + "x-tc-action:" + action.toLowerCase() + "\n";

5，又突然好了

上面第四点还是用老的，不写charset=utf-8，tmd接口又正常了，why？不知道！

三，签名算法-腾讯运维提供

调用

String req = JSON.toJSONString(tncOrcReqDTO);
HashMap<String, String> authorizationHearderV3 = SingtrueUtil.getAuthorizationHearderV3(req);
String bizTokenKey = SingtrueUtil.getBizTokenKey(authorizationHearderV3, req);

算法

package com.smcv.customer.service.util;import org.springframework.http.HttpHeaders;import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;public class SingtrueUtil {private static final String TAG = "SigtrueUtil";private final static String ALGORITHM = "TC3-HMAC-SHA256"; // TC3-HMAC-SHA256：签名方法，目前固定取该值；private static final Charset UTF8 = StandardCharsets.UTF_8;private final static String CT_JSON = "application/json; charset=utf-8";private static String action = "SmartStructuralOCRV2";private static String urlStr = "https://ocr.tencentcloudapi.com";private static String service = "ocr";private static String version = "2018-11-19";private static String region = "ap-shanghai";private static String tempToken = null;private final static String host = "ocr.tencentcloudapi.com";private final static String secretId = "";private final static String secretKey = "";/*** 腾讯云签名** @param bodyParam body参数* @param service   服务名* @param secretId  secretId* @param secretKey secretKey* @param tempToken 临时证书所用的 Token ，需要结合临时密钥一起使用。临时密钥和 Token*                  需要到访问管理服务调用接口获取。长期密钥不需要 Token。* @param action    接口名称* @param version   版本号* @param region    区域* @return headers 请求头* @throws Exception e*/public static HashMap<String, String> getAuthorizationHearder(String host,String bodyParam,String service,String secretId,String secretKey,String tempToken,String action,String version,String region) throws Exception {String timestamp = String.valueOf(System.currentTimeMillis() / 1000);// 当前 UNIX 时间戳，可记录发起 API// 请求的时间。注意：如果与服务器时间相差超过5分钟，会引起签名过期错误SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 注意时区，否则容易出错sdf.setTimeZone(TimeZone.getTimeZone("UTC"));String date = sdf.format(new Date(Long.valueOf(timestamp + "000")));// ************* 步骤 1：拼接规范请求串 *************String httpRequestMethod = "POST";String canonicalUri = "/";String canonicalQueryString = "";String canonicalHeaders = "content-type:application/json; charset=utf-8\n" + "host:" + host + "\n";String signedHeaders = "content-type;host";String hashedRequestPayload = sha256Hex(bodyParam);String canonicalRequest = httpRequestMethod + "\n" + canonicalUri + "\n" + canonicalQueryString + "\n"+ canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;System.out.println(canonicalRequest);// ************* 步骤 2：拼接待签名字符串 *************String credentialScope = date + "/" + service + "/" + "tc3_request";String hashedCanonicalRequest = sha256Hex(canonicalRequest);String stringToSign = ALGORITHM + "\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;System.out.println(stringToSign);// ************* 步骤 3：计算签名 *************byte[] secretDate = hmac256(("TC3" + secretKey).getBytes(UTF8), date);byte[] secretService = hmac256(secretDate, service);byte[] secretSigning = hmac256(secretService, "tc3_request");String signature = bytesToHexFun(hmac256(secretSigning, stringToSign));// DatatypeConverter.printHexBinary(hmac256(secretSigning,// stringToSign)).toLowerCase();System.out.println(signature);// ************* 步骤 4：拼接 Authorization *************String authorization = ALGORITHM + " " + "Credential=" + secretId + "/" + credentialScope + ", "+ "SignedHeaders=" + signedHeaders + ", " + "Signature=" + signature;System.out.println(authorization);HashMap<String, String> headers = new HashMap<>();if (tempToken != null && !tempToken.isEmpty()) {headers.put("X-TC-Token", tempToken);}headers.put("Authorization", authorization);headers.put("Content-Type", CT_JSON);headers.put("Host", host);headers.put("X-TC-Action", action);headers.put("X-TC-Timestamp", timestamp);headers.put("X-TC-Version", version);headers.put("X-TC-Region", region);StringBuilder sb = new StringBuilder();sb.append("curl -X POST https://").append(host).append(" -H \"Authorization: ").append(authorization).append("\"").append(" -H \"Content-Type: application/json; charset=utf-8\"").append(" -H \"Host: ").append(host).append("\"").append(" -H \"X-TC-Action: ").append(action).append("\"").append(" -H \"X-TC-Timestamp: ").append(timestamp).append("\"").append(" -H \"X-TC-Version: ").append(version).append("\"").append(" -H \"X-TC-Region: ").append(region).append("\"").append(" -d '").append(bodyParam).append("'");System.out.println(sb);return headers;}public static HashMap<String, String> getAuthorizationHearderV3(String bodyParam) throws Exception {String timestamp = String.valueOf(System.currentTimeMillis() / 1000);// 当前 UNIX 时间戳，可记录发起 API// 请求的时间。注意：如果与服务器时间相差超过5分钟，会引起签名过期错误SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 注意时区，否则容易出错sdf.setTimeZone(TimeZone.getTimeZone("UTC"));String date = sdf.format(new Date(Long.valueOf(timestamp + "000")));// ************* 步骤 1：拼接规范请求串 *************String httpRequestMethod = "POST";String canonicalUri = "/";String canonicalQueryString = "";String canonicalHeaders = "content-type:application/json; charset=utf-8\n" + "host:" + host + "\n";String signedHeaders = "content-type;host";String hashedRequestPayload = sha256Hex(bodyParam);String canonicalRequest = httpRequestMethod + "\n" + canonicalUri + "\n" + canonicalQueryString + "\n"+ canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;System.out.println(canonicalRequest);// ************* 步骤 2：拼接待签名字符串 *************String credentialScope = date + "/" + service + "/" + "tc3_request";String hashedCanonicalRequest = sha256Hex(canonicalRequest);String stringToSign = ALGORITHM + "\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;System.out.println(stringToSign);// ************* 步骤 3：计算签名 *************byte[] secretDate = hmac256(("TC3" + secretKey).getBytes(UTF8), date);byte[] secretService = hmac256(secretDate, service);byte[] secretSigning = hmac256(secretService, "tc3_request");String signature = bytesToHexFun(hmac256(secretSigning, stringToSign));// DatatypeConverter.printHexBinary(hmac256(secretSigning,// stringToSign)).toLowerCase();System.out.println(signature);// ************* 步骤 4：拼接 Authorization *************String authorization = ALGORITHM + " " + "Credential=" + secretId + "/" + credentialScope + ", "+ "SignedHeaders=" + signedHeaders + ", " + "Signature=" + signature;System.out.println(authorization);HashMap<String, String> headers = new HashMap<>();if (tempToken != null && !tempToken.isEmpty()) {headers.put("X-TC-Token", tempToken);}headers.put("Authorization", authorization);headers.put("Content-Type", CT_JSON);headers.put("Host", host);headers.put("X-TC-Action", action);headers.put("X-TC-Timestamp", timestamp);headers.put("X-TC-Version", version);headers.put("X-TC-Region", region);;//		StringBuilder sb = new StringBuilder();
//		sb.append("curl -X POST https://").append(host).append(" -H \"Authorization: ").append(authorization)
//				.append("\"").append(" -H \"Content-Type: application/json; charset=utf-8\"").append(" -H \"Host: ")
//				.append(host).append("\"").append(" -H \"X-TC-Action: ").append(action).append("\"")
//				.append(" -H \"X-TC-Timestamp: ").append(timestamp).append("\"").append(" -H \"X-TC-Version: ")
//				.append(version).append("\"").append(" -H \"X-TC-Region: ").append(region).append("\"").append(" -d '")
//				.append(bodyParam).append("'");
//		System.out.println(sb);return headers;}public static HttpHeaders getAuthorizationHearderV2(String bodyParam) throws Exception {String timestamp = String.valueOf(System.currentTimeMillis() / 1000);// 当前 UNIX 时间戳，可记录发起 API// 请求的时间。注意：如果与服务器时间相差超过5分钟，会引起签名过期错误SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 注意时区，否则容易出错sdf.setTimeZone(TimeZone.getTimeZone("UTC"));String date = sdf.format(new Date(Long.valueOf(timestamp + "000")));// ************* 步骤 1：拼接规范请求串 *************String httpRequestMethod = "POST";String canonicalUri = "/";String canonicalQueryString = "";String canonicalHeaders = "content-type:application/json; charset=utf-8\n" + "host:" + host + "\n";String signedHeaders = "content-type;host";String hashedRequestPayload = sha256Hex(bodyParam);String canonicalRequest = httpRequestMethod + "\n" + canonicalUri + "\n" + canonicalQueryString + "\n"+ canonicalHeaders + "\n" + signedHeaders + "\n" + hashedRequestPayload;System.out.println(canonicalRequest);// ************* 步骤 2：拼接待签名字符串 *************String credentialScope = date + "/" + service + "/" + "tc3_request";String hashedCanonicalRequest = sha256Hex(canonicalRequest);String stringToSign = ALGORITHM + "\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;System.out.println(stringToSign);// ************* 步骤 3：计算签名 *************byte[] secretDate = hmac256(("TC3" + secretKey).getBytes(UTF8), date);byte[] secretService = hmac256(secretDate, service);byte[] secretSigning = hmac256(secretService, "tc3_request");String signature = bytesToHexFun(hmac256(secretSigning, stringToSign));// DatatypeConverter.printHexBinary(hmac256(secretSigning,// stringToSign)).toLowerCase();System.out.println(signature);// ************* 步骤 4：拼接 Authorization *************String authorization = ALGORITHM + " " + "Credential=" + secretId + "/" + credentialScope + ", "+ "SignedHeaders=" + signedHeaders + ", " + "Signature=" + signature;System.out.println(authorization);HttpHeaders headers = new HttpHeaders();headers.add("Authorization", authorization);headers.add("Content-Type", CT_JSON);headers.add("Host", host);headers.add("X-TC-Action", action);headers.add("X-TC-Timestamp", timestamp);headers.add("X-TC-Version", version);headers.add("X-TC-Region", region);headers.add("X-TC-Language", "zh-CN");//		StringBuilder sb = new StringBuilder();
//		sb.append("curl -X POST https://").append(host).append(" -H \"Authorization: ").append(authorization)
//				.append("\"").append(" -H \"Content-Type: application/json; charset=utf-8\"").append(" -H \"Host: ")
//				.append(host).append("\"").append(" -H \"X-TC-Action: ").append(action).append("\"")
//				.append(" -H \"X-TC-Timestamp: ").append(timestamp).append("\"").append(" -H \"X-TC-Version: ")
//				.append(version).append("\"").append(" -H \"X-TC-Region: ").append(region).append("\"").append(" -d '")
//				.append(bodyParam).append("'");
//		System.out.println(sb);return headers;}public static String getBizTokenKey(HashMap<String, String> headerMap, String bodyParam) throws IOException {String resultString;HttpURLConnection httpURLConnection = null;try {URL url = new URL(urlStr);httpURLConnection = (HttpURLConnection) url.openConnection();httpURLConnection.setConnectTimeout(6000);httpURLConnection.setUseCaches(false);// 不使用缓存httpURLConnection.setInstanceFollowRedirects(true);// 是成员变量 仅作用域当前函数，设置当前这个对象httpURLConnection.setReadTimeout(3000);httpURLConnection.setDoInput(true);httpURLConnection.setDoOutput(true);httpURLConnection.setRequestMethod("POST");for (Map.Entry<String, String> entry : headerMap.entrySet()) {httpURLConnection.setRequestProperty(entry.getKey(), entry.getValue());}// httpURLConnection.setRequestProperty();httpURLConnection.connect();// ---------------使用字节流发送数据---------------------------OutputStream out = httpURLConnection.getOutputStream();// 缓冲字节流 包装字节流BufferedOutputStream bos = new BufferedOutputStream(out);// 把字节流数组写入缓冲区中bos.write(bodyParam.getBytes("UTF-8"));// 刷新缓冲区 发送数据bos.flush();out.close();bos.close();// 如果响应码为200代表请求访问成功if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {InputStream in = httpURLConnection.getInputStream();resultString = getContent(in);} else {throw new RuntimeException("请求失败");}} catch (IOException e) {e.printStackTrace();throw new RuntimeException("请求失败");} finally {if (httpURLConnection != null) {httpURLConnection.disconnect();}}return resultString;}/*** inputStream转为String类型** @param inputStream* @return*/private static String getContent(InputStream inputStream) {BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));StringBuilder sb = new StringBuilder();String line = null;try {while ((line = bufferedReader.readLine()) != null) {sb.append(line + "/n");}} catch (IOException e) {e.printStackTrace();} finally {try {inputStream.close();} catch (IOException e) {e.printStackTrace();}}return sb.toString().replace("/n", "");}private static byte[] hmac256(byte[] key, String msg) throws Exception {Mac mac = Mac.getInstance("HmacSHA256");SecretKeySpec secretKeySpec = new SecretKeySpec(key, mac.getAlgorithm());mac.init(secretKeySpec);return mac.doFinal(msg.getBytes(UTF8));}private static String sha256Hex(String s) throws Exception {MessageDigest md = MessageDigest.getInstance("SHA-256");byte[] d = md.digest(s.getBytes(UTF8));return bytesToHexFun(d);// DatatypeConverter.printHexBinary(d).toLowerCase();}private static String bytesToHexFun(byte[] bytes) {StringBuilder buf = new StringBuilder(bytes.length * 2);for (byte b : bytes) { // 使用String的format方法进行转换buf.append(String.format("%02x", b & 0xff));}return buf.toString();}
}