springboot封装涂鸦物联网平台API鉴权请求的demo

ThingsKit

2022年10月28日2022年10月28日

先看依赖



    org.springframework.boot
    spring-boot-starter-data-redis



    org.apache.httpcomponents
    httpclient



    org.apache.httpcomponents
    httpasyncclient



    org.bgee.log4jdbc-log4j2
    log4jdbc-log4j2-jdbc4.1
    1.16

封装的助手类中主要使用httpclient作为请求管理类；并且使用了redis作为缓存提供者，没有用redis的使用其他缓存也可以；
看一下我的redis缓存实现类

package com.abon.smart_family_lot.application.common.util;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Component;

import java.util.concurrent.TimeUnit;

/**
 * desc: redis缓存助手类
 * author: zmq3821@163.com
 * date: 2021/12/2 15:09
 */
@Component
public class RedisCacheUtil {

    private StringRedisTemplate stringRedisTemplate;

    @Autowired
    public void setStringRedisTemplate(StringRedisTemplate stringRedisTemplate) {
        this.stringRedisTemplate = stringRedisTemplate;
    }

    // 设置缓存
    public void set(String key, String value) {
        stringRedisTemplate.opsForValue().set(key, value);
    }

    // 设置缓存
    public void set(String key, String value, long expire) {
        stringRedisTemplate.opsForValue().set(key, value, expire, TimeUnit.SECONDS);
    }

    // 获取缓存值
    public String get(String key) {
        return stringRedisTemplate.opsForValue().get(key);
    }

    // 设置有效期
    public boolean expire(String key, long expire) {
        return Boolean.TRUE.equals(stringRedisTemplate.expire(key, expire, TimeUnit.SECONDS));
    }

    // 清理缓存
    public void remove(String key) {
        if (hasKey(key)) {
            stringRedisTemplate.delete(key);
        }
    }

    // 缓存递增
    public Long increment(String key, long delta) {
        return stringRedisTemplate.opsForValue().increment(key, delta);
    }

    // 是否存在指定缓存
    public boolean hasKey(String key) {
        return Boolean.TRUE.equals(stringRedisTemplate.hasKey(key));
    }


}

先看一下我的目录结构，只是为了方便搞清楚代码存放的逻辑。红框里的就是主要使用到文件

springboot封装涂鸦物联网平台API鉴权请求的demo

先在resources创建tuya.yml

#云端
cloud:
  client-id: xxx #授权密钥
  client-secret: xxxxxxxxxx #授权密钥
  endpoint: https://openapi.tuyacn.com #接入地址-中国数据中心

在common/config中创建TuyaCloudConfig.java

package com.abon.smart_family_lot.application.common.config;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;

@Data
@Configuration
@PropertySource(value = {"classpath:tuya.yml"}, encoding = "utf-8", factory = YamlConfigFactory.class)
@ConfigurationProperties(prefix = "cloud")
public class TuyaCloudConfig {

    private String clientId;

    private String clientSecret;

    private String endpoint;

}

这里用到了 YamlConfigFactory,用于辅助加载yml文件

package com.abon.smart_family_lot.application.common.config;

import org.springframework.beans.factory.config.YamlPropertiesFactoryBean;
import org.springframework.core.env.PropertiesPropertySource;
import org.springframework.core.env.PropertySource;
import org.springframework.core.io.support.DefaultPropertySourceFactory;
import org.springframework.core.io.support.EncodedResource;
import org.springframework.lang.Nullable;

import java.io.IOException;
import java.util.Properties;

public class YamlConfigFactory extends DefaultPropertySourceFactory {

    @Override
    public PropertySource> createPropertySource(@Nullable String name, EncodedResource resource) throws IOException {
        String sourceName = name != null ? name : resource.getResource().getFilename();
        if (!resource.getResource().exists()) {
            assert sourceName != null;
            return new PropertiesPropertySource(sourceName, new Properties());
        } else {
            assert sourceName != null;
            if (sourceName.endsWith(".yml") || sourceName.endsWith(".yaml")) {
                Properties propertiesFromYaml = loadYml(resource);
                return new PropertiesPropertySource(sourceName, propertiesFromYaml);
            } else {
                return super.createPropertySource(name, resource);
            }
        }
    }

    private Properties loadYml(EncodedResource resource) throws IOException {
        YamlPropertiesFactoryBean factory = new YamlPropertiesFactoryBean();
        factory.setResources(resource.getResource());
        factory.afterPropertiesSet();
        return factory.getObject();
    }

}

创建请求基类BaseRequest

package com.abon.smart_family_lot.application.common.extend.request;

/**
 * desc: 请求基类
 * author: zmq3821@163.com
 * date: 2021/12/6 9:58
 */
public class BaseRequest {

    private String error = "";

    private Object result = "";

    public void setError(String error) {
        this.error = error;
    }

    public String getError() {
        return error;
    }

    public void setResult(Object result) {
        this.result = result;
    }

    public Object getResult() {
        return result;
    }

}

创建真正的请求封装类TuyaRequest.java

package com.abon.smart_family_lot.application.common.extend.request.tuya;

import com.abon.smart_family_lot.application.common.exception.TuyaCloudSDKException;
import com.abon.smart_family_lot.application.common.extend.request.BaseRequest;
import com.abon.smart_family_lot.application.common.util.HttpUtil;
import com.alibaba.fastjson.JSONObject;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.Map;

/**
 * desc: 涂鸦平台请求封装
 * author: zmq3821@163.com
 * date: 2021/12/6 10:00
 */
@Slf4j
@Component
public class TuyaRequest extends BaseRequest {

    @Resource
    private TuyaRequestHelper tuyaRequestHelper;

    // GET请求
    public boolean doGetRequest(String uri, Map customHeaders) {
        Object _result;
        try {
            String accessToken = tuyaRequestHelper.getAccesToken();
            String url = tuyaRequestHelper.getUrlStr(uri, null);
            Map newHeaders = tuyaRequestHelper.getHeader("GET", url, customHeaders, null, accessToken);
            log.info("doGetRequest => Url: {}, headers: {}", uri, "n" + JSONObject.toJSONString(newHeaders));
            String response = HttpUtil.httpGet(url, newHeaders);
            log.info("response: {}", response);
            JSONObject responseObject = JSONObject.parseObject(response);
            Boolean success = responseObject.getBoolean("success");
            if (!success) {
                throw new TuyaCloudSDKException(responseObject);
            }
            _result = responseObject.get("result");
            setResult(_result);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            setError(e.getMessage());
            return false;
        }
    }

    // POST请求
    public boolean doPostRequest(String uri, String body, Map customHeaders) {
        Object _result;
        try {
            if (customHeaders == null) {
                customHeaders = new HashMap();
            }
            customHeaders.put("Content-Type", "application/json");
            String accessToken = tuyaRequestHelper.getAccesToken();
            String url = tuyaRequestHelper.getUrlStr(uri, null);
            Map newHeaders = tuyaRequestHelper.getHeader("POST", url, customHeaders, body, accessToken);
            log.info("doPostRequest => Url: {}, n body: {}, n headers: {}", uri, body, JSONObject.toJSONString(newHeaders));
            String response = HttpUtil.httpPost(url, body, newHeaders);
            log.info("response: {}", response);
            JSONObject responseObject = JSONObject.parseObject(response);
            Boolean success = responseObject.getBoolean("success");
            if (!success) {
                throw new TuyaCloudSDKException(responseObject);
            }
            _result = responseObject.get("result");
            setResult(_result);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            setError(e.getMessage());
            return false;
        }
    }

    // PUT请求
    public boolean doPutRequest(String uri, String body, Map customHeaders) {
        Object _result;
        try {
            if (customHeaders == null) {
                customHeaders = new HashMap();
            }
            customHeaders.put("Content-Type", "application/json");
            String accessToken = tuyaRequestHelper.getAccesToken();
            String url = tuyaRequestHelper.getUrlStr(uri, null);
            Map newHeaders = tuyaRequestHelper.getHeader("PUT", url, customHeaders, body, accessToken);
            log.info("doPutRequest => Url: {}, n body: {}, n headers: {}", uri, body, JSONObject.toJSONString(newHeaders));
            String response = HttpUtil.httpPut(url, body, newHeaders);
            log.info("response: {}", response);
            JSONObject responseObject = JSONObject.parseObject(response);
            Boolean success = responseObject.getBoolean("success");
            if (!success) {
                throw new TuyaCloudSDKException(responseObject);
            }
            _result = responseObject.get("result");
            setResult(_result);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            setError(e.getMessage());
            return false;
        }
    }

    // DELETE请求
    public boolean doDeleteRequest(String uri, Map customHeaders) {
        Object _result;
        try {
            String accessToken = tuyaRequestHelper.getAccesToken();
            String url = tuyaRequestHelper.getUrlStr(uri, null);
            Map newHeaders = tuyaRequestHelper.getHeader("DELETE", url, customHeaders, null, accessToken);
            log.info("doDeleteRequest => Url: {}, headers: {}", uri, "n" + JSONObject.toJSONString(newHeaders));
            String response = HttpUtil.httpDelete(url, newHeaders);
            log.info("response: {}", response);
            JSONObject responseObject = JSONObject.parseObject(response);
            Boolean success = responseObject.getBoolean("success");
            if (!success) {
                throw new TuyaCloudSDKException(responseObject);
            }
            _result = responseObject.get("result");
            setResult(_result);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
            setError(e.getMessage());
            return false;
        }
    }



}

创建请求的助手类TuyaRequestHelper，请求的授权签名和header处理都在这里了

package com.abon.smart_family_lot.application.common.extend.request.tuya;

import com.abon.smart_family_lot.application.common.config.TuyaCloudConfig;
import com.abon.smart_family_lot.application.common.extend.request.BaseRequest;
import com.abon.smart_family_lot.application.common.util.Sha256Util;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.net.URL;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.Collectors;

/**
 * desc: 涂鸦平台API SIGN辅助类
 * author: zmq3821@163.com
 * date: 2021/12/6 10:00
 */
@Slf4j
@Component
public class TuyaRequestHelper extends BaseRequest {

    // 当body为空时的SHA256值
    private static final String EMPTY_HASH = "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855";

    // 需要参与签名的Header的key
    private static final String SING_HEADER_NAME = "Signature-Headers";

    @Resource
    private TuyaCloudConfig tuyaCloudConfig;

    @Resource
    private TuyaRequestAccessToken tuyaRequestAccessToken;

    // header请求头参数初始化
    public Map getHeader(String method, String url, Map headerMap, String body, String accessToken) {
        Map flattenHeaders = flattenHeaders(headerMap);
        String t = System.currentTimeMillis() + "";
        String nonceStr = flattenHeaders.getOrDefault("nonce", "");
        String signatureHeaders = flattenHeaders.getOrDefault(SING_HEADER_NAME, "");
        Map headers = new HashMap(flattenHeaders);
        System.out.println("_headers:" + headers);
        headers.put("client_id", tuyaCloudConfig.getClientId());
        headers.put("t", t);
        headers.put("sign_method", "HMAC-SHA256");
        headers.put("lang", "zh"); // 语言类型。中国区默认 zh，其他区默认 en
        headers.put("nonce", nonceStr); // API调用者生成的UUID
        headers.put(SING_HEADER_NAME, signatureHeaders); // 开发者自定义需要加入签名的header字段。
        String stringToSign = stringToSign(method, url, body, flattenHeaders);
        if (StringUtils.isNotBlank(accessToken)) {
            headers.put("access_token", accessToken);
            headers.put("sign", sign(t, nonceStr, stringToSign, accessToken));
        } else {
            headers.put("sign", sign(t, nonceStr, stringToSign, null));
        }
        return headers;
    }

    // 签名算法
    // 令牌管理: sign = HMAC-SHA256(client_id + t + nonce + stringToSign, secret).toUpperCase()
    // 业务管理: sign = HMAC-SHA256(client_id + access_token + t + nonce + stringToSign, secret).toUpperCase()
    private String sign(String t, String nonce, String stringToSign, String accessToken) {
        String clientId = tuyaCloudConfig.getClientId();
        String secret = tuyaCloudConfig.getClientSecret();
        StringBuilder str = new StringBuilder();
        accessToken = StringUtils.isBlank(accessToken) ? "" : accessToken;
        nonce = StringUtils.isBlank(nonce) ? "" : nonce;
        str.append(clientId).append(accessToken).append(t).append(nonce).append(stringToSign);
        return Sha256Util.sha256HMAC(str.toString(), secret);
    }

    // 生成签名字符串
    public String stringToSign(String httpMethod, String url, String bodyStr, Map headers) {
        try {
            log.info("httpMethod:{}, url:{}, bodyStr:{}, headers:{}", httpMethod, url, bodyStr, headers);
            String sha256 = EMPTY_HASH;
            if (bodyStr != null && bodyStr.length() > 0) {
                System.out.println("bodyStr:" + bodyStr);
                sha256 = Sha256Util.encryption(bodyStr);
            }
            String headersStr = getSignHeaderStr(headers);
            String newUrl = getPathAndSortParam(new URL(url));
            log.info("生成签名字符串 => n httpMethod: {},sha256: {},headersStr: {}, newUrl: {}", httpMethod, sha256, headersStr, newUrl);
            return httpMethod.toUpperCase() + "n" + sha256 + "n" + headersStr + "n" + newUrl;
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }

    // 过滤header
    private static Map flattenHeaders(Map headers) {
        Map newHeaders = new HashMap();
        if (headers != null) {
            headers.forEach((name, values) -> {
                if (values == null || values.isEmpty()) {
                    newHeaders.put(name, "");
                } else {
                    newHeaders.put(name, values);
                }
            });
        }
        return newHeaders;
    }

    // 返回参与签名计算的SignHeaderStr
    private String getSignHeaderStr(Map headers) {
        String headersStr = "";
        String signHeaderStr = headers.getOrDefault(SING_HEADER_NAME, "");
        if (StringUtils.isNotEmpty(signHeaderStr)) {
            String[] signHeaderKeys = signHeaderStr.split("s*:s*");
            headersStr = Arrays.stream(signHeaderKeys)
                    .map(String::trim)
                    .filter(it -> it.length() > 0)
                    .map(it -> it + ":" + headers.get(it))
                    .collect(Collectors.joining("n"));
        }
        return headersStr;
    }

    // 返回排序处理过的url
    public static String getPathAndSortParam(URL url) {
        String path = "";
        try {
            path = url.getPath();
            String query = "";
            if (StringUtils.isNotBlank(url.getQuery())) {
                query = URLDecoder.decode(url.getQuery(), StandardCharsets.UTF_8);
            }
            if (StringUtils.isBlank(query)) {
                return path;
            }
            Map kvMap = new TreeMap(); //红黑树排序
            String[] kvs = query.split("&");
            for (String kv : kvs) {
                String[] kvArr = kv.split("=");
                if (kvArr.length > 1) {
                    kvMap.put(kvArr[0], kvArr[1]);
                } else {
                    kvMap.put(kvArr[0], "");
                }
            }
            return path + "?" + kvMap.entrySet().stream().map(it -> it.getKey() + "=" + it.getValue())
                    .collect(Collectors.joining("&"));
        } catch (Exception ignored) {
        }
        return path;
    }

    // 拼接URL与参数
    public String getUrlStr(String path, Map querys) {
        String endpoint = tuyaCloudConfig.getEndpoint();
        StringBuilder urlStr = new StringBuilder();
        urlStr.append(endpoint);
        if (StringUtils.isNotBlank(path)) {
            urlStr.append(path);
        }
        if (querys != null) {
            StringBuilder paramsStr = new StringBuilder();
            querys.forEach((key, val) -> {
                if (paramsStr.length() > 0) {
                    paramsStr.append("&");
                }
                if (StringUtils.isNotBlank(key)) {
                    paramsStr.append(key).append("=").append(val);
                }
            });
            if (paramsStr.length() > 0) {
                urlStr.append("?").append(paramsStr);
            }
        }
        return urlStr.toString();
    }

    // 返回accessToken
    public String getAccesToken() {
        return tuyaRequestAccessToken.getAccessToken();
    }


}

还要创建accessToekn管理类TuyaRequestAccessToken

简单来说是把获取到的accessToken和refreshToken分别放入缓存中，若accessToken缓存到期则使用refreshToken刷新Token并再次放入缓存；TuyaRequestAccessToken由此实现了token的管理，而在请求内只需调用而无需关心accessToken的获取逻辑

package com.abon.smart_family_lot.application.common.extend.request.tuya;

import com.abon.smart_family_lot.application.common.exception.TuyaCloudSDKException;
import com.abon.smart_family_lot.application.common.extend.request.BaseRequest;
import com.abon.smart_family_lot.application.common.util.DateUtil;
import com.abon.smart_family_lot.application.common.util.HttpUtil;
import com.abon.smart_family_lot.application.common.util.RedisCacheUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.io.Serializable;
import java.util.Map;

/**
 * desc: 涂鸦平台API accessToekn管理类
 * author: zmq3821@163.com
 * date: 2021/12/6 10:00
 */
@Slf4j
@Component
public class TuyaRequestAccessToken {

    // accessToken的缓存键
    private final String cacheAccessTokenKey = "TUYA_API_ACCESS_TOKEN";

    // refreshToken的缓存键
    private final String cacheRefreshTokenKey = "TUYA_API_REFRESH_ACCESS_TOKEN";

    @Resource
    private TuyaRequestHelper tuyaRequestSign;

    @Resource
    private RedisCacheUtil redisCacheUtil;


    @Data
    @NoArgsConstructor // 注解在类上；为类提供一个无参的构造方法
    @AllArgsConstructor // 注解在类上；为类提供一个全参的构造方法
    public static class TokenVO implements Serializable {

        private String accessToken;

        private String refreshToken;

        private long expireTime;

    }

    // 获取AccessToken
    private void createAccessToken() {
        log.info("获取AccessToken");
        try {
            String uri = "/v1.0/token?grant_type=1";
            String url = tuyaRequestSign.getUrlStr(uri, null);
            Map newHeaders = tuyaRequestSign.getHeader("GET", url, null, null, null);
            log.info("doGetRequest => Url: {}, headers: {}", uri, "n" + JSONObject.toJSONString(newHeaders));
            String response = HttpUtil.httpGet(url, newHeaders);
            log.info("response: {}", response);
            JSONObject responseObject = JSONObject.parseObject(response);
            Boolean success = responseObject.getBoolean("success");
            if (!success) {
                throw new RuntimeException(responseObject.getString("message"));
            }
            JSONObject data = responseObject.getJSONObject("result");
            TokenVO tokenVO = JSONObject.toJavaObject(data, TokenVO.class);
            long _expireTime = tokenVO.getExpireTime() - 10; //留出10秒避免临界值
            redisCacheUtil.set(cacheAccessTokenKey, tokenVO.getAccessToken(), _expireTime);
            redisCacheUtil.set(cacheRefreshTokenKey, tokenVO.getRefreshToken());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // 刷新RefreshToken
    private void createRefreshToken(String refresh_token) {
        log.info("使用refreshToken换取accessToken");
        try {
            String uri = "/v1.0/token/" + refresh_token;
            String url = tuyaRequestSign.getUrlStr(uri, null);
            Map newHeaders = tuyaRequestSign.getHeader("GET", url, null, null, null);
            log.info("doGetRequest => Url: {}, headers: {}", uri, "n" + JSONObject.toJSONString(newHeaders));
            String response = HttpUtil.httpGet(url, newHeaders);
            log.info("response: {}", response);
            JSONObject responseObject = JSONObject.parseObject(response);
            Boolean success = responseObject.getBoolean("success");
            if (!success) {
                throw new RuntimeException(responseObject.getString("message"));
            }
            JSONObject data = responseObject.getJSONObject("result");
            TokenVO tokenVO = JSONObject.toJavaObject(data, TokenVO.class);
            long _expireTime = tokenVO.getExpireTime() - 10; //留出10秒避免临界值
            redisCacheUtil.set(cacheAccessTokenKey, tokenVO.getAccessToken(), _expireTime);
            redisCacheUtil.set(cacheRefreshTokenKey, tokenVO.getRefreshToken());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    // 返回accessToken
    public String getAccessToken() {
        String _accessToken = redisCacheUtil.get(cacheAccessTokenKey);
        System.out.println("_accessToken:" + _accessToken);
        if (_accessToken == null) {
            String _refreshToken = redisCacheUtil.get(cacheRefreshTokenKey);
            System.out.println("_refreshToken:" + _refreshToken);
            if (_refreshToken == null) {
                createAccessToken();
            } else {
                createRefreshToken(_refreshToken);
            }
            return getAccessToken();
        } else {
            return _accessToken;
        }
    }


}

最后示例一个GET请求的调用


public boolean info(DeviceValidate.infoTDO params) {
    String deviceId = params.getDeviceId();
    boolean res = tuyaRequest.doGetRequest("/v1.0/devices/" + deviceId, null);
    if (!res) {
        setError(tuyaRequest.getError());
        return false;
    }
    JSONObject data = JSONObject.parseObject(tuyaRequest.getResult().toString());
    setResult(data);
    return true;

}

8.应某位小伙伴的要求再补加一个Sha256Util工具类

package com.abon.smart_family_lot.application.common.util;

import javax.crypto.Mac;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.annotation.adapters.HexBinaryAdapter;
import java.nio.charset.StandardCharsets;
import java.security.InvalidKeyException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

/**
 * desc: Sha256工具类
 * author: zmq3821@163.com
 * date: 2021/12/3 16:07
 */
public class Sha256Util {

    public static String encryption(String str) throws Exception {
        return encryption(str.getBytes(StandardCharsets.UTF_8));
    }

    public static String encryption(byte[] buf) throws Exception {
        MessageDigest messageDigest;
        messageDigest = MessageDigest.getInstance("SHA-256");
        messageDigest.update(buf);
        return byte2Hex(messageDigest.digest());
    }

    private static String byte2Hex(byte[] bytes) {
        StringBuilder stringBuffer = new StringBuilder();
        String temp;
        for (byte aByte : bytes) {
            temp = Integer.toHexString(aByte & 0xFF);
            if (temp.length() == 1) {
                stringBuffer.append("0");
            }
            stringBuffer.append(temp);
        }
        return stringBuffer.toString();
    }

    public static String sha256HMAC(String content, String secret) {
        Mac sha256HMAC = null;
        try {
            sha256HMAC = Mac.getInstance("HmacSHA256");
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        SecretKey secretKey = new SecretKeySpec(secret.getBytes(StandardCharsets.UTF_8), "HmacSHA256");
        try {
            assert sha256HMAC != null;
            sha256HMAC.init(secretKey);
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        }
        byte[] digest = sha256HMAC.doFinal(content.getBytes(StandardCharsets.UTF_8));
        return new HexBinaryAdapter().marshal(digest).toUpperCase();
    }


}

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随着物联网或物联网解决方案的出现，许多行业都从提高生产力和运营可靠性的物联网技术中受益匪浅。物联网解决方案提供了一种设置，其中包括传感器、仪器、机器和许多其他连接设备，无需人工干预即可运行。本文将慢慢分解物联网解决方案架构，以更多地了解物联网实施的分步过程。 …

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springboot封装涂鸦物联网平台API鉴权请求的demo