呼叫騰訊優圖開放平臺進行人臉識別-Java呼叫API實現
阿新 • • 發佈：2019-01-06
http://open.youtu.qq.com官網
直接234.
第一步：鑑權服務技術方案
Java程式碼實現如下
需要的HMACSHA1程式碼及隨機數程式碼import java.util.Date; import com.baidu.aip.util.Base64Util; /** * 獲取Authorization * @author 小帥丶 * @類名稱 Sign * @remark * @date 2017-8-18 */ public class Sign { /** * Authorization方法 * @param userQQ 開發者建立應用時的QQ號 * @param AppID 開發者建立應用後的AppID * @param SecretID 開發者建立應用後的SecretID * @param SecretKey 開發者建立應用後的SecretKey * @return sign * @throws Exception */ public static String getSign(String userQQ,String AppID,String SecretID,String SecretKey) throws Exception{ long tnowTimes = new Date().getTime()/1000; long enowTimes = tnowTimes+2592000; String rRandomNum = HMACSHA1.genRandomNum(10); String param = "u=" + userQQ + "&a=" + AppID + "&k=" + SecretID + "&e=" + enowTimes + "&t=" + tnowTimes + "&r=" + rRandomNum + "&f="; byte [] hmacSign = HMACSHA1.getSignature(param, SecretKey); byte[] all = new byte[hmacSign.length+param.getBytes().length]; System.arraycopy(hmacSign, 0, all, 0, hmacSign.length); System.arraycopy(param.getBytes(), 0, all, hmacSign.length, param.getBytes().length); String sign = Base64Util.encode(all); return sign; } }
import java.util.Random; import javax.crypto.Mac; import javax.crypto.spec.SecretKeySpec; /** * HMACSHA1演算法 * * @author 小帥丶 * @類名稱 HMACSHA1 * @remark * @date 2017-8-18 */ public class HMACSHA1 { /** * 演算法標識 */ private static final String HMAC_SHA1 = "HmacSHA1"; /** * 加密 * @param data 要加密的資料 * @param key 金鑰 * @return * @throws Exception */ public static byte[] getSignature(String data, String key) throws Exception { Mac mac = Mac.getInstance(HMAC_SHA1); SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), mac.getAlgorithm()); mac.init(signingKey); return mac.doFinal(data.getBytes()); } /** * 生成隨機數字 * @param length * @return */ public static String genRandomNum(int length){ int maxNum = 62; int i; int count = 0; char[] str = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'}; StringBuffer pwd = new StringBuffer(""); Random r = new Random(); while(count < length){ i = Math.abs(r.nextInt(maxNum)); if (i >= 0 && i < str.length) { pwd.append(str[i]); count ++; } } return pwd.toString(); } }
第二步:準備相關程式碼
儲存SIGN 或者每次都生成一個也可以 方便測試就直接每次生成一個了
開始識別圖片之前需要工具類Base64Util FileUtil
FileUtil程式碼
import java.io.*; /** * 檔案讀取工具類 */ public class FileUtil { /** * 讀取檔案內容，作為字串返回 */ public static String readFileAsString(String filePath) throws IOException { File file = new File(filePath); if (!file.exists()) { throw new FileNotFoundException(filePath); } if (file.length() > 1024 * 1024 * 1024) { throw new IOException("File is too large"); } StringBuilder sb = new StringBuilder((int) (file.length())); // 建立位元組輸入流 FileInputStream fis = new FileInputStream(filePath); // 建立一個長度為10240的Buffer byte[] bbuf = new byte[10240]; // 用於儲存實際讀取的位元組數 int hasRead = 0; while ( (hasRead = fis.read(bbuf)) > 0 ) { sb.append(new String(bbuf, 0, hasRead)); } fis.close(); return sb.toString(); } /** * 根據檔案路徑讀取byte[] 陣列 */ public static byte[] readFileByBytes(String filePath) throws IOException { File file = new File(filePath); if (!file.exists()) { throw new FileNotFoundException(filePath); } else { ByteArrayOutputStream bos = new ByteArrayOutputStream((int) file.length()); BufferedInputStream in = null; try { in = new BufferedInputStream(new FileInputStream(file)); short bufSize = 1024; byte[] buffer = new byte[bufSize]; int len1; while (-1 != (len1 = in.read(buffer, 0, bufSize))) { bos.write(buffer, 0, len1); } byte[] var7 = bos.toByteArray(); return var7; } finally { try { if (in != null) { in.close(); } } catch (IOException var14) { var14.printStackTrace(); } bos.close(); } } } }
Base64Util 程式碼
/**
* Base64 工具類
*/
public class Base64Util {
private static final char last2byte = (char) Integer.parseInt("00000011", 2);
private static final char last4byte = (char) Integer.parseInt("00001111", 2);
private static final char last6byte = (char) Integer.parseInt("00111111", 2);
private static final char lead6byte = (char) Integer.parseInt("11111100", 2);
private static final char lead4byte = (char) Integer.parseInt("11110000", 2);
private static final char lead2byte = (char) Integer.parseInt("11000000", 2);
private static final char[] encodeTable = new char[]{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'};
public Base64Util() {
}
public static String encode(byte[] from) {
StringBuilder to = new StringBuilder((int) ((double) from.length * 1.34D) + 3);
int num = 0;
char currentByte = 0;
int i;
for (i = 0; i < from.length; ++i) {
for (num %= 8; num < 8; num += 6) {
switch (num) {
case 0:
currentByte = (char) (from[i] & lead6byte);
currentByte = (char) (currentByte >>> 2);
case 1:
case 3:
case 5:
default:
break;
case 2:
currentByte = (char) (from[i] & last6byte);
break;
case 4:
currentByte = (char) (from[i] & last4byte);
currentByte = (char) (currentByte << 2);
if (i + 1 < from.length) {
currentByte = (char) (currentByte | (from[i + 1] & lead2byte) >>> 6);
}
break;
case 6:
currentByte = (char) (from[i] & last2byte);
currentByte = (char) (currentByte << 4);
if (i + 1 < from.length) {
currentByte = (char) (currentByte | (from[i + 1] & lead4byte) >>> 4);
}
}
to.append(encodeTable[currentByte]);
}
}
if (to.length() % 4 != 0) {
for (i = 4 - to.length() % 4; i > 0; --i) {
to.append("=");
}
}
return to.toString();
}
}建立應用得到的值放在一個常量類裡面
/**
* 常量
* @author 小帥丶
* @類名稱 YouTuAppContants
* @remark
* @date 2017-8-18
*/
public class YouTuAppContants {
public static String AppID = "你自己的AppID ";
public static String SecretID = "你自己的SecretID";
public static String SecretKey = "你自己的SecretKey";
public static String userQQ = "你自己的userQQ";
}import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
/**
* http 工具類
*/
public class HttpUtilYoutu {
private static class TrustAnyTrustManager implements X509TrustManager {
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[] {};
}
}
private static class TrustAnyHostnameVerifier implements HostnameVerifier {
public boolean verify(String hostname, SSLSession session) {
return true;
}
}
/**
* post方式請求伺服器(https協議)
*
* @param url
* 請求地址
* @param content
* 引數
* @param charset
* 編碼
* @return
* @throws NoSuchAlgorithmException
* @throws KeyManagementException
* @throws IOException
*/
public static String post(String url, String content,String charset,String sign)
throws NoSuchAlgorithmException, KeyManagementException,
IOException {
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, new TrustManager[] { new TrustAnyTrustManager() },
new java.security.SecureRandom());
URL console = new URL(url);
Integer length = content.length();
HttpURLConnection conn = (HttpURLConnection) console.openConnection();
//文件要求填寫的Header引數
conn.setRequestProperty("Host", "api.youtu.qq.com");
conn.setRequestProperty("Content-Length",length.toString());
conn.setRequestProperty("Content-Type", "text/json");
conn.setRequestProperty("Authorization", sign);
//文件要求填寫的Header引數
conn.setDoOutput(true);
conn.connect();
DataOutputStream out = new DataOutputStream(conn.getOutputStream());
out.write(content.getBytes(charset));
// 重新整理、關閉
out.flush();
out.close();
BufferedReader in = null;
in = new BufferedReader(
new InputStreamReader(conn.getInputStream(), charset));
String result = "";
String getLine;
while ((getLine = in.readLine()) != null) {
result += getLine;
}
in.close();
System.err.println("result:" + result);
return result;
}
}第三步:測試一下人臉檢測介面
請求示例類：
import com.xiaoshuai.test.Base64Util;
import com.xiaoshuai.test.FileUtil;
public class DetectFace {
//人臉檢測介面
public static String DETECTFACE_URL="http://api.youtu.qq.com/youtu/api/detectface";
public static void main(String[] args) throws Exception {
String imagePath = "G:/test2.jpg";
System.out.println(getDetectFace(imagePath));
}
/**
* 檢測圖中人臉資訊
* @param imagePath 圖片路徑
* @return
* @throws Exception
*/
public static String getDetectFace(String imagePath) throws Exception{
//得到Authorization
String sign = Sign.getSign(YouTuAppContants.userQQ,
YouTuAppContants.AppID, YouTuAppContants.SecretID,
YouTuAppContants.SecretKey);
byte[] imgData = FileUtil.readFileByBytes(imagePath);
String image = Base64Util.encode(imgData);;
String param = "{\"app_id\":\""+YouTuAppContants.AppID+"\",\"image\":\""+image+"\"}";
String result = HttpUtilYoutu.post(DETECTFACE_URL, param, "UTF-8",sign);
System.out.println(result);
return result;
}
}看看返回的內容:
{"session_id":"","image_height":280,"image_width":359,"face":[{"face_id":"2188093443753939350","x":128,"y":127,"height":106.0,"width":106.0,"pitch":6,"roll":3,"yaw":-2,"age":23,"gender":94,"glass":true,"expression":34,"beauty":80,"face_shape":{"face_profile":[{"x":139,"y":160},{"x":139,"y":170},{"x":140,"y":180},{"x":143,"y":189},{"x":146,"y":199},{"x":150,"y":208},{"x":156,"y":217},{"x":162,"y":225},{"x":170,"y":232},{"x":179,"y":236},{"x":189,"y":238},{"x":199,"y":235},{"x":207,"y":230},{"x":214,"y":222},{"x":221,"y":214},{"x":225,"y":205},{"x":229,"y":195},{"x":231,"y":185},{"x":232,"y":174},{"x":233,"y":164},{"x":232,"y":155}],"left_eye":[{"x":152,"y":159},{"x":156,"y":161},{"x":161,"y":163},{"x":166,"y":162},{"x":171,"y":160},{"x":167,"y":157},{"x":162,"y":156},{"x":157,"y":157}],"right_eye":[{"x":216,"y":156},{"x":212,"y":159},{"x":208,"y":160},{"x":203,"y":160},{"x":198,"y":158},{"x":202,"y":155},{"x":206,"y":154},{"x":211,"y":154}],"left_eyebrow":[{"x":143,"y":148},{"x":151,"y":148},{"x":159,"y":148},{"x":166,"y":148},{"x":174,"y":147},{"x":167,"y":142},{"x":158,"y":141},{"x":150,"y":142}],"right_eyebrow":[{"x":224,"y":145},{"x":216,"y":145},{"x":208,"y":145},{"x":200,"y":146},{"x":192,"y":146},{"x":199,"y":141},{"x":208,"y":139},{"x":217,"y":139}],"mouth":[{"x":170,"y":209},{"x":175,"y":214},{"x":180,"y":218},{"x":187,"y":219},{"x":194,"y":217},{"x":200,"y":213},{"x":204,"y":207},{"x":199,"y":203},{"x":192,"y":201},{"x":186,"y":203},{"x":180,"y":202},{"x":174,"y":205},{"x":175,"y":210},{"x":181,"y":211},{"x":187,"y":211},{"x":193,"y":210},{"x":198,"y":209},{"x":198,"y":207},{"x":193,"y":208},{"x":187,"y":209},{"x":180,"y":207},{"x":175,"y":207}],"nose":[{"x":184,"y":184},{"x":183,"y":160},{"x":180,"y":166},{"x":177,"y":173},{"x":174,"y":180},{"x":170,"y":188},{"x":178,"y":191},{"x":185,"y":192},{"x":192,"y":190},{"x":199,"y":186},{"x":194,"y":179},{"x":191,"y":172},{"x":187,"y":166}]}}],"errorcode":0,"errormsg":"OK"}忽略掉檢測五官位置的資料:
"face_id": "2188093443753939350",
"x": 128,
"y": 127,
"height": 106,
"width": 106,
"pitch": 6,
"roll": 3,
"yaw": -2,
"age": 23,//年齡 [0~100]
"gender": 94,//性別 [0/(female)~100(male)]
"glass": true,//是否有眼鏡 [true,false]
"expression": 34,//微笑[0(normal)~50(smile)~100(laugh)]
"beauty": 80,//魅力 [0~100]想知道自己的魅力嗎？那就掃描下面的二維碼吧（微信小程式碼)
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