アリ雲の顔認識インタフェースの例を呼び出す
16590 ワード
アリ雲の顔認識インタフェースを呼び出した例を示します
まず開発環境,springboot開発のorgについて述べる.apache.commons.codec.binary.Base64; これは主にbase 64符号化を行うための以下のpom依存性の一部である.
1.必要な構成およびツールクラスアプリケーションを貼り付ける.propertiesキー構成
次にコンフィギュレーションツールクラスを作成します
ここでは、私が使用している2つのインタフェースツールクラスと対応方法について説明します.
次に、返される2つのツールクラス1を示す.顔検出ツール類
2.顔比較ツール類
3.JsonUtilツールクラス
最後にテストするか、くだらないことを言わないか、直接コードをつけます.
まず開発環境,springboot開発のorgについて述べる.apache.commons.codec.binary.Base64; これは主にbase 64符号化を行うための以下のpom依存性の一部である.
org.springframework.boot
spring-boot-starter-parent
1.5.9.RELEASE
commons-codec
commons-codec
org.projectlombok
lombok
provided
1.必要な構成およびツールクラスアプリケーションを貼り付ける.propertiesキー構成
# AK
ak_id= ak_id
ak_secret= ak_secret
# API
verifyUrl=https://dtplus-cn-shanghai.data.aliyuncs.com/face/verify
# API
detectUrl=https://dtplus-cn-shanghai.data.aliyuncs.com/face/detect
次にコンフィギュレーションツールクラスを作成します
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
@Data
@Configuration
public class FaceRecognConfig {
@Value("${ak_id}")
private String ak_id; // ak
@Value("${ak_secret}")
private String ak_secret;// ak_secret
@Value("${verifyUrl}")
private String verifyUrl;// API
@Value("${detectUrl}")
private String detectUrl;// API
}
ここでは、私が使用している2つのインタフェースツールクラスと対応方法について説明します.
@Data
@Configuration
public class FaceRecognUtil {
@Autowired
private FaceRecognConfig faceRecognConfig;
/**
* API
* POST
* @param img1 Base64
* @return FaceDetectResult
* @throws Exception Exception
*/
public FaceDetectResult faceDetect(String img1) throws Exception {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
String body = "{\"type\":\"1\",\"content\":\""+img1+"\"}";
int statusCode = 200;
try {
URL realUrl = new URL(faceRecognConfig.getDetectUrl());
/*
* http header
*/
String method = "POST";
String accept = "application/json";
String content_type = "application/json";
String path = realUrl.getFile();
String date = toGMTString(new Date());
// 1. body MD5+BASE64
String bodyMd5 = MD5Base64(body);
String stringToSign = method + "
" + accept + "
" + bodyMd5 + "
" + content_type + "
" + date + "
" + path;
// 2. HMAC-SHA1
String signature = HMACSha1(stringToSign, faceRecognConfig.getAk_secret());
// 3. authorization header
String authHeader = "Dataplus " + faceRecognConfig.getAk_id() + ":" + signature;
// URL
URLConnection conn = realUrl.openConnection();
//
conn.setRequestProperty("accept", accept);
conn.setRequestProperty("content-type", content_type);
conn.setRequestProperty("date", date);
conn.setRequestProperty("Authorization", authHeader);
// POST
conn.setDoOutput(true);
conn.setDoInput(true);
// URLConnection
out = new PrintWriter(conn.getOutputStream());
//
out.print(body);
// flush
out.flush();
// BufferedReader URL
statusCode = ((HttpURLConnection)conn).getResponseCode();
if(statusCode != 200) {
in = new BufferedReader(new InputStreamReader(((HttpURLConnection)conn).getErrorStream()));
} else {
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
}
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
if (statusCode != 200) {
throw new IOException("
Http StatusCode: "+ statusCode + "
ErrorMessage: " + result);
}
return JsonUtil.readValue(result, FaceDetectResult.class);
}
/**
* API
* POST
* @param img1 base64
* @param img2 base64
* @return
* @throws Exception Exception
*/
public FaceVerifyResult faceVerify(String img1, String img2) throws Exception {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
String body = "{\"type\":\"1\",\"content_1\":\""+img1+"\",\"content_2\":\""+img2+"\"}";
int statusCode = 200;
try {
URL realUrl = new URL(faceRecognConfig.getVerifyUrl());
/*
* http header
*/
String method = "POST";
String accept = "application/json";
String content_type = "application/json";
String path = realUrl.getFile();
String date = toGMTString(new Date());
// 1. body MD5+BASE64
String bodyMd5 = MD5Base64(body);
String stringToSign = method + "
" + accept + "
" + bodyMd5 + "
" + content_type + "
" + date + "
" + path;
// 2. HMAC-SHA1
String signature = HMACSha1(stringToSign, faceRecognConfig.getAk_secret());
// 3. authorization header
String authHeader = "Dataplus " + faceRecognConfig.getAk_id() + ":" + signature;
// URL
URLConnection conn = realUrl.openConnection();
//
conn.setRequestProperty("accept", accept);
conn.setRequestProperty("content-type", content_type);
conn.setRequestProperty("date", date);
conn.setRequestProperty("Authorization", authHeader);
// POST
conn.setDoOutput(true);
conn.setDoInput(true);
// URLConnection
out = new PrintWriter(conn.getOutputStream());
//
out.print(body);
// flush
out.flush();
// BufferedReader URL
statusCode = ((HttpURLConnection)conn).getResponseCode();
if(statusCode != 200) {
in = new BufferedReader(new InputStreamReader(((HttpURLConnection)conn).getErrorStream()));
} else {
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
}
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
if (statusCode != 200) {
throw new IOException("
Http StatusCode: "+ statusCode + "
ErrorMessage: " + result);
}
return JsonUtil.readValue(result, FaceVerifyResult.class);
}
/**
* MD5+BASE64
* @param s
* @return
*/
String MD5Base64(String s) {
if (s == null)
return null;
String encodeStr = "";
byte[] utfBytes = s.getBytes();
MessageDigest mdTemp;
try {
mdTemp = MessageDigest.getInstance("MD5");
mdTemp.update(utfBytes);
byte[] md5Bytes = mdTemp.digest();
encodeStr = Base64.encodeBase64String(md5Bytes);
} catch (Exception e) {
throw new Error("Failed to generate MD5 : " + e.getMessage());
}
return encodeStr;
}
/**
* HMAC-SHA1
* @param data stringToSign
* @param key ak_secret
* @return HMAC-SHA1
*/
String HMACSha1(String data, String key) {
String result;
try {
SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(), "HmacSHA1");
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(signingKey);
byte[] rawHmac = mac.doFinal(data.getBytes());
result = Base64.encodeBase64String(rawHmac);
} catch (Exception e) {
throw new Error("Failed to generate HMAC : " + e.getMessage());
}
return result;
}
/**
* javaScript new Date().toUTCString();
* @param date
* @return
*/
String toGMTString(Date date) {
SimpleDateFormat df = new SimpleDateFormat("E, dd MMM yyyy HH:mm:ss z", Locale.UK);
df.setTimeZone(new java.util.SimpleTimeZone(0, "GMT"));
return df.format(date);
}
/**
* demo
* @param url
* @param body
* @param ak_id ak_id
* @param ak_secret ak_secret
* @return String
* @throws Exception
*/
public String sendPost(String url, String body, String ak_id, String ak_secret) throws Exception {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
int statusCode = 200;
try {
URL realUrl = new URL(url);
/*
* http header
*/
String method = "POST";
String accept = "application/json";
String content_type = "application/json";
String path = realUrl.getFile();
String date = toGMTString(new Date());
// 1. body MD5+BASE64
String bodyMd5 = MD5Base64(body);
String stringToSign = method + "
" + accept + "
" + bodyMd5 + "
" + content_type + "
" + date + "
" + path;
// 2. HMAC-SHA1
String signature = HMACSha1(stringToSign, ak_secret);
// 3. authorization header
String authHeader = "Dataplus " + ak_id + ":" + signature;
// URL
URLConnection conn = realUrl.openConnection();
//
conn.setRequestProperty("accept", accept);
conn.setRequestProperty("content-type", content_type);
conn.setRequestProperty("date", date);
conn.setRequestProperty("Authorization", authHeader);
// POST
conn.setDoOutput(true);
conn.setDoInput(true);
// URLConnection
out = new PrintWriter(conn.getOutputStream());
//
out.print(body);
// flush
out.flush();
// BufferedReader URL
statusCode = ((HttpURLConnection)conn).getResponseCode();
if(statusCode != 200) {
in = new BufferedReader(new InputStreamReader(((HttpURLConnection)conn).getErrorStream()));
} else {
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
}
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
ex.printStackTrace();
}
}
if (statusCode != 200) {
throw new IOException("
Http StatusCode: "+ statusCode + "
ErrorMessage: " + result);
}
return result;
}
}
次に、返される2つのツールクラス1を示す.顔検出ツール類
import lombok.Data;
@Data
public class FaceDetectResult {
private int errno;// 0 ， 0 ，
private String err_msg;//
private String request_id;// request_id id
private int face_num;//
private int[] face_rect;// ， [left, top, width, height], ， ， 。 [left1, top1, width1, height1, left2, top2, width2, height2]
private float[] face_prob;// , 0-1 ， ， 。 [face_prob1, face_prob2]
private float[] pose;// [yaw, pitch, roll]， yaw ， [-90, 90]，pitch ， [-90, 90]， roll ， [-180, 180]， ，
private int landmark_num;// ， 105 ( ： 24 ， 32 ， 6 ， 34 ， 9 )
private float[] landmark;// ， ， （x0, y0, x1, y1, ……）； ， ，
private float[] iris;// ， 6 ， [left_iris_cenpt.x, left_iris_cenpt.y, left_iris_radius, right_iris_cenpt.x, right_iris_cenpt.y, right_iris_radis]
}
2.顔比較ツール類
import lombok.Data;
@Data
public class FaceVerifyResult {
private int errno;// 0 ， 0 ，
private String err_msg;//
private String request_id;// request_id id
private float confidence;// ：0-100， ， 0
private float[] thresholds;// 10e-3,10e-4,10e-5
private int[] rectA;// 1 (left, top, width, height)， ， 0
private int[] rectB;// 2 (left, top, width, height)， ， 0
}
3.JsonUtilツールクラス
import java.util.Map;
import java.util.HashMap;
import org.springframework.util.StringUtils;
import com.fasterxml.jackson.core.JsonParser.Feature;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
public class JsonUtil {
static ObjectMapper objectMapper;
static {
if (objectMapper == null) {
objectMapper = new ObjectMapper();
}
// objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
// objectMapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);
//
objectMapper.configure(Feature.ALLOW_UNQUOTED_CONTROL_CHARS, true);
objectMapper.configure(Feature.ALLOW_BACKSLASH_ESCAPING_ANY_CHARACTER, true);
//
objectMapper.configure(Feature.ALLOW_SINGLE_QUOTES, true);
objectMapper.configure(Feature.ALLOW_NON_NUMERIC_NUMBERS, true);
}
/**
* ， json JavaBean 。
* (1) JavaBean：readValue(json,Student.class)
* (2) List:readValue(json,List.class). json List， List， 。
* readValue(json,List.class) List 最後にテストするか、くだらないことを言わないか、直接コードをつけます.
@RestController
public class CyryManagerController {
@Autowired
private FaceRecognConfig faceRecognConfig;
@Autowired
private FaceRecognUtil faceRecognUtil;
@GetMapping(value = "/test")
public String tes(String img,String img1) throws Exception {
//
FaceDetectResult fDetectResult = faceRecognUtil.faceDetect(img);
System.out.println(fDetectResult.toString());
//
FaceVerifyResult fVerifyResult = faceRecognUtil.faceVerify(img,img1);
System.out.println(fVerifyResult.toString());
}
}