阿里云SDK核心库(Core SDK)使用教程-阿里云开发者社区

概述

阿里云针对具体云产品提供了丰富的管控API接口，目前全部的API认证统一走阿里云管控pop，用户可以基于接口认证说明自己做Authorization签名认证，不过这个过程相对比较麻烦，极易出现错误，不同的开发语言需要各自独立开发签名方法。目前部分产品已经结合相关的开发语言提供了针对具体产品的SDK，但是还有很多产品以及部分开发语言，目前还未提供单独的SDK，很多用户使用过程中还是去自己做签名，其实这个是没有必要的。阿里云针对主流的开发语言都提供了Core的SDK，独立产品的SDK底层也是基于对应语言Core的SDK做的集成二次开发，所以开发者在使用过程中，可以直接基于对应开发语言Core SDK进行二次封装，省去自签名操作的繁琐步骤。

测试API

公众人脸识别

签名方式

考虑到很多用户可能确实无法使用SDK，必须要自签名方式实现，这里结合Java 开发语言，介绍自签名方式的具体实现方式，其它语言的签名实现可以参考一下。

1、Pom.xml

<dependencies>
    <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
    <dependency>
        <groupId>org.apache.httpcomponents</groupId>
        <artifactId>httpclient</artifactId>
        <version>4.4</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/commons-lang/commons-lang -->
    <dependency>
        <groupId>commons-lang</groupId>
        <artifactId>commons-lang</artifactId>
        <version>2.6</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/log4j/log4j -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.17</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/com.google.collections/google-collections -->
    <dependency>
        <groupId>com.google.collections</groupId>
        <artifactId>google-collections</artifactId>
        <version>1.0-rc2</version>
    </dependency>
</dependencies>

2、SignatureUtils.class

package com.alibaba.aes;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.Map;
import java.util.TreeMap;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang.StringUtils;
public class SignatureUtils {
    private final static String CHARSET_UTF8 = "utf8";
    private final static String ALGORITHM = "UTF-8";
    private final static String SEPARATOR = "&";
    public static Map<String, String> splitQueryString(String url)
            throws URISyntaxException, UnsupportedEncodingException {
        URI uri = new URI(url);
        String query = uri.getQuery();
        final String[] pairs = query.split("&");
        TreeMap<String, String> queryMap = new TreeMap<String, String>();
        for (String pair : pairs) {
            final int idx = pair.indexOf("=");
            final String key = idx > 0 ? pair.substring(0, idx) : pair;
            if (!queryMap.containsKey(key)) {
                queryMap.put(key, URLDecoder.decode(pair.substring(idx + 1), CHARSET_UTF8));
            }
        }
        return queryMap;
    }
    public static String generate(String method, Map<String, String> parameter,
                                  String accessKeySecret) throws Exception {
        String signString = generateSignString(method, parameter);
        System.out.println("signString---"+signString);
        byte[] signBytes = hmacSHA1Signature(accessKeySecret + "&", signString);
        String signature = newStringByBase64(signBytes);
        System.out.println("signature---"+signature);
        if ("POST".equals(method))
            return signature;
        return URLEncoder.encode(signature, "UTF-8");
    }
    public static String generateSignString(String httpMethod, Map<String, String> parameter)
            throws IOException {
        TreeMap<String, String> sortParameter = new TreeMap<String, String>();
        sortParameter.putAll(parameter);
        String canonicalizedQueryString = UrlUtil.generateQueryString(sortParameter, true);
        if (null == httpMethod) {
            throw new RuntimeException("httpMethod can not be empty");
        }
        StringBuilder stringToSign = new StringBuilder();
        stringToSign.append(httpMethod).append(SEPARATOR);
        stringToSign.append(percentEncode("/")).append(SEPARATOR);
        stringToSign.append(percentEncode(canonicalizedQueryString));
        return stringToSign.toString();
    }
    public static String percentEncode(String value) {
        try {
            return value == null ? null : URLEncoder.encode(value, CHARSET_UTF8)
                    .replace("+", "%20").replace("*", "%2A").replace("%7E", "~");
        } catch (Exception e) {
        }
        return "";
    }
    public static byte[] hmacSHA1Signature(String secret, String baseString)
            throws Exception {
        if (StringUtils.isEmpty(secret)) {
            throw new IOException("secret can not be empty");
        }
        if (StringUtils.isEmpty(baseString)) {
            return null;
        }
        Mac mac = Mac.getInstance("HmacSHA1");
        SecretKeySpec keySpec = new SecretKeySpec(secret.getBytes(CHARSET_UTF8), ALGORITHM);
        mac.init(keySpec);
        return mac.doFinal(baseString.getBytes(CHARSET_UTF8));
    }
    public static String newStringByBase64(byte[] bytes)
            throws UnsupportedEncodingException {
        if (bytes == null || bytes.length == 0) {
            return null;
        }
        return new String(Base64.encodeBase64(bytes, false), CHARSET_UTF8);
    }
    public static void main(String[] args) {
        String str = "GET&%2F&AccessKeyId%3DCd***eHJuMOrT%26Action%3DDescribeInstances%26Format%3DJSON%26RegionId%3Dcn-hangzhou%26SignatureMethod%3DHMAC-SHA1%26SignatureNonce%3D9fdf288**36082ebef%26SignatureVersion%3D1.0%26Timestamp%3D2015-12-21T09%253A05%253A44Z%26Version%3D2014-05-26";
        byte[] signBytes;
        try {
            signBytes = SignatureUtils.hmacSHA1Signature("byc****6HQmH" + "&", str.toString());
            String signature = SignatureUtils.newStringByBase64(signBytes);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

3、UrlUtil.class

package com.alibaba.aes;
import java.net.URLEncoder;
import java.util.Map;
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
public class UrlUtil {
    private static Logger logger = Logger.getLogger(UrlUtil.class);
    private final static String CHARSET_UTF8 = "utf8";
    /**
     *
     * @param url
     * @return
     */
    public static String urlEncode(String url) {
        if (!StringUtils.isEmpty(url)) {
            try {
                url = URLEncoder.encode(url, "UTF-8");
            } catch (Exception e) {
                logger.warn("Url encode error:" + e.getMessage());
            }
        }
        return url;
    }
    public static String generateQueryString(Map<String, String> params, boolean isEncodeKV) {
        StringBuilder canonicalizedQueryString = new StringBuilder();
        for (Map.Entry<String, String> entry : params.entrySet()) {
            if (isEncodeKV)
                canonicalizedQueryString.append(percentEncode(entry.getKey())).append("=")
                        .append(percentEncode(entry.getValue())).append("&");
            else
                canonicalizedQueryString.append(entry.getKey()).append("=")
                        .append(entry.getValue()).append("&");
        }
        if (canonicalizedQueryString.length() > 1) {
            canonicalizedQueryString.setLength(canonicalizedQueryString.length() - 1);
        }
        return canonicalizedQueryString.toString();
    }
    public static String percentEncode(String value) {
        try {
            // 使用URLEncoder.encode编码后，将"+","*","%7E"做替换即满足 API规定的编码规范
            return value == null ? null : URLEncoder.encode(value, CHARSET_UTF8)
                    .replace("+", "%20").replace("*", "%2A").replace("%7E", "~");
        } catch (Exception e) {
            //不可能发生的异常
        }
        return "";
    }
}

4、Demo1.class

package com.alibaba.aes;

import com.google.common.collect.Maps;
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.client.utils.URIBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import java.net.URI;
import java.net.URLEncoder;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Map;
import java.util.SimpleTimeZone;
import java.util.UUID;

public class Demo1 {
    private static String getQueryUrl(Map<String, String> param, String accessKeyId, String secret) throws Exception {
        Date date = new Date();
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
        simpleDateFormat.setTimeZone(new SimpleTimeZone(0, "GMT"));
        String timestamp = simpleDateFormat.format(date);
        Map<String, String> publicParam = Maps.newHashMap();

        publicParam.put("AccessKeyId", accessKeyId);
        publicParam.put("Format", "json");
        publicParam.put("SignatureMethod", "Hmac-SHA1");
        publicParam.put("SignatureNonce", UUID.randomUUID().toString());
        publicParam.put("SignatureVersion", "1.0");
        publicParam.put("Timestamp", timestamp);
        publicParam.put("Version", "2019-12-30");// API Version
        publicParam.put("RegionId", "cn-shanghai");

        if (param != null) {
            for (Map.Entry<String, String> entry : param.entrySet()) {
                publicParam.put(entry.getKey(), entry.getValue());
            }
        }

        String s = SignatureUtils.generateSignString("POST", publicParam);
        byte[] signBytes;
        signBytes = SignatureUtils.hmacSHA1Signature(secret + "&", s);
        String signature = SignatureUtils.newStringByBase64(signBytes);

        publicParam.put("Signature", signature);

        // 服务请求地址
        String url = "https://facebody.cn-shanghai.aliyuncs.com/?";
        //对参数进行url编码
        for (Map.Entry<String, String> entry : publicParam.entrySet()) {
            publicParam.put(entry.getKey(), URLEncoder.encode(entry.getValue().toString(), "UTF-8"));
        }
        //拼接请求url
        for (Map.Entry<String, String> entry : publicParam.entrySet()) {
            url = url + entry + "&";
        }
        //去掉最后一个&
        url = url.substring(0, url.length() - 1);
        return url;
    }

    public static void main(String[] args) {
        try {
            Map<String, String> map = Maps.newHashMap();
            map.put("Action", "RecognizePublicFace");
            String imageUrl_1 = "https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg";
            map.put("Task.1.ImageURL",imageUrl_1);

            // access_key_id, access_key_secret  获取参考链接：https://yq.aliyun.com/articles/693979?spm=a2c4e.11155435.0.0.319326a2bKJ90g
            String accessKeyId = " ********";
            String secret = "********";
            String url = getQueryUrl(map, accessKeyId, secret);

            // 使用生成的 URL 创建POST请求
            URIBuilder builder = new URIBuilder(url);
            URI uri = builder.build();
            HttpPost request = new HttpPost(uri);
            HttpClient httpclient = HttpClients.createDefault();

            HttpResponse response = httpclient.execute(request);
            HttpEntity entity = response.getEntity();

            if (entity != null)
            {
                System.out.println(EntityUtils.toString(entity));
            }
        }
        catch (Exception e)
        {
            System.out.println(e.getMessage());
        }
    }
}

5、The Result

{"RequestId":"1D4350AB-30A9-4DDE-9B77-D46402A45C3B","Data":{"Elements":[{"TaskId":"img2j2l2SklQmI5zSsJ6zBNbK-1tnvWt","Results":[{"Suggestion":"review","Rate":82.83,"Label":"sface","SubResults":[{"W":149.0,"H":149.0,"X":209.0,"Y":149.0,"Faces":[{"Rate":82.83,"Id":"AliFace_0018407","Name":"**"}]}]}],"ImageURL":"https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg"}]}}

Open API Exployer

一、Open API Exployer快速测试

测试地址

图片.png

二、实例代码

图片.png

Core SDK

Java Core SDK

1、SDK安装(aliyun-java-sdk-core)

<!-- https://mvnrepository.com/artifact/com.aliyun/aliyun-java-sdk-core -->
<dependency>
    <groupId>com.aliyun</groupId>
    <artifactId>aliyun-java-sdk-core</artifactId>
    <version>4.5.13</version>
</dependency>

2、Code Sample


package com.alibaba.aes;

import com.aliyuncs.CommonRequest;
import com.aliyuncs.CommonResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.http.FormatType;
import com.aliyuncs.http.MethodType;
import com.aliyuncs.profile.DefaultProfile;

public class CoreDemo {

    //DefaultProfile.getProfile的参数分别是地域，access_key_id, access_key_secret
    public static DefaultProfile profile = DefaultProfile.getProfile("cn-shanghai", "********", "********");
    public static DefaultAcsClient client = new DefaultAcsClient(profile);

    public static void main(String[] args) {

        String imageUrl = "https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg";

        CommonRequest request = new CommonRequest();
        request.setSysAction("RecognizePublicFace");
        request.setSysMethod(MethodType.POST);
        request.setSysDomain("facebody.cn-shanghai.aliyuncs.com");
        request.setSysVersion("2019-12-30");
        request.setHttpContentType(FormatType.FORM);
        request.putBodyParameter("Task.1.ImageURL", imageUrl);
        CommonResponse response = null;
        try {
            response = client.getCommonResponse(request);
        } catch (ClientException e) {
            e.printStackTrace();
        }
        System.out.println(response.getData());
    }
}

NET Core SDK

1、SDK安装(aliyun-net-sdk-core)
图片.png

2、Code Sample

using Aliyun.Acs.Core;
using Aliyun.Acs.Core.Http;
using Aliyun.Acs.Core.Profile;
using System;

namespace NewCoreSDKDemo
{
    class Program
    {
        static void Main(string[] args)
        {

        // DefaultProfile.getProfile的参数分别是地域，access_key_id, access_key_secret
        IClientProfile profile = DefaultProfile.GetProfile("cn-shanghai", "********", "********");
        DefaultAcsClient client = new DefaultAcsClient(profile);

        // 图片地址
        string image_url = "https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg";
        CommonRequest request = new CommonRequest();
        request.Method = MethodType.POST;
        request.Version = "2019-12-30";
        request.Domain = "facebody.cn-shanghai.aliyuncs.com";
        request.Action = "RecognizePublicFace";
        request.AddBodyParameters("Task.1.ImageURL", image_url);

        CommonResponse response = null;

        // Initiate the request and get the response
        response = client.GetCommonResponse(request);
        Console.WriteLine(response.Data);

        Console.ReadKey();
        }
    }
}

Python Core SDK

1、SDK安装(aliyun-python-sdk-core)
图片.png

2、Code Sample

from aliyunsdkcore.client import AcsClient
from aliyunsdkcore.request import CommonRequest

# DefaultProfile.getProfile的参数分别是地域，access_key_id, access_key_secret
client = AcsClient("******", "********", "cn-shanghai")

image_Url = "https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg"
request = CommonRequest()
request.set_method("POST")
request.set_domain("facebody.cn-shanghai.aliyuncs.com")
request.set_action_name("RecognizePublicFace")
request.set_version("2019-12-30")
request.add_body_params("Task.1.ImageURL", image_Url)

response = client.get_response(request)
response_str = str(response[2], 'utf-8')  # bytes 转 string
print(response_str) # 打印输出结果

PHP Core SDK

1、SDK安装(alibabacloud/client)

Composer方式安装指令：composer require alibabacloud/client

2、Code Sample

< ?php
use
AlibabaCloud\Client\AlibabaCloud;
use
AlibabaCloud\Client\Exception\ClientException;
use
AlibabaCloud\Client\Exception\ServerException;

require_once
'vendor\autoload.php';

// access_key_id, access_key_secret
获取参考链接：https: // yq.aliyun.com / articles / 693979
AlibabaCloud::accessKeyClient('********', '********')->asDefaultClient();

$imageUrl = "https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg";
try {
$result = AlibabaCloud::
    rpc()
->version('2019-12-30')
->action('RecognizePublicFace')
->method('POST')
->host('facebody.cn-shanghai.aliyuncs.com')
->regionId('cn-shanghai')
->setAcceptFormat('json')
->setQueryParameters('Task.1.ImageURL', $imageUrl)
->request();

print($result); // 输出结果
} catch(ClientException $exception) {
    print_r($exception->getErrorMessage());
} catch(ServerException $exception) {
    print_r($exception->getErrorMessage());
}
? >

NodeJS Core SDK

1、SDK 安装(openapi-core-nodejs-sdk)

Npm方式安装：npm install @alicloud/pop-core -S

2、Code Sample

var RPCClient = require('@alicloud/pop-core').RPCClient;

var client = new RPCClient({
  accessKeyId: '********',
  accessKeySecret: '********',
  endpoint: 'https://facebody.cn-shanghai.aliyuncs.com',
  apiVersion: '2019-12-30'
});

ImageUrl_1 = "https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg";

var params = {'Task.1.ImageURL':ImageUrl_1};
var action = 'RecognizePublicFace';
var requestOption = {
        method: 'POST'
}

client.request(action, params, requestOption).then((result) => {
    console.log(JSON.stringify(result));
    }, (ex) => {
    console.log(ex);
})

Go Core SDK

1、SDK 安装(alibaba-cloud-sdk-go)

go get -u github.com/aliyun/alibaba-cloud-sdk-go/sdk

2、Code Sample

package main

import (
    "fmt"

    "github.com/aliyun/alibaba-cloud-sdk-go/sdk"
    "github.com/aliyun/alibaba-cloud-sdk-go/sdk/requests"
)

func main() {

    client, err := sdk.NewClientWithAccessKey("cn-shanghai", "********", "********") // ak,sk信息
    if err != nil {
        // Handle exceptions
        panic(err)
    }

    request := requests.NewCommonRequest()
    request.Method = "POST"
    request.Domain = "facebody.cn-shanghai.aliyuncs.com"
    request.Version = "2019-12-30"
    request.Scheme = "https"
    request.ApiName = "RecognizePublicFace"
    request.QueryParams["Task.1.ImageURL"] = "https://viapi-test.oss-cn-shanghai.aliyuncs.com/test/facebody/RecognizePublicFace/u%3D2802364678%2C591996814%26fm%3D26%26gp%3D0.jpg" // Specify the requested regionId, if not specified, use the client regionId, then default regionId
    request.AcceptFormat = "json"
    request.TransToAcsRequest()
    client.ProcessCommonRequest(request)

    response, err := client.ProcessCommonRequest(request)
    if err != nil {
        fmt.Print(err.Error())
    }
    fmt.Printf(response.GetHttpContentString())
}

阿里云SDK核心库(Core SDK)使用教程

概述

测试API

签名方式

1、Pom.xml

2、SignatureUtils.class

3、UrlUtil.class

4、Demo1.class

5、The Result

Open API Exployer

一、Open API Exployer快速测试

二、实例代码

Core SDK

Java Core SDK

NET Core SDK

Python Core SDK

PHP Core SDK

NodeJS Core SDK

Go Core SDK

更多参考

云服务技术课堂

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技术资料

插件

阿里云SDK核心库(Core SDK)使用教程

概述

测试API

签名方式

1、Pom.xml

2、SignatureUtils.class

3、UrlUtil.class

4、Demo1.class

5、The Result

Open API Exployer

一、Open API Exployer快速测试

二、实例代码

Core SDK

Java Core SDK

NET Core SDK

Python Core SDK

PHP Core SDK

NodeJS Core SDK

Go Core SDK

更多参考

云服务技术课堂

热门文章

最新文章

相关课程

相关电子书

相关实验场景