钉钉开发之动态获取access_token

阳光穿透心脏的1/2处 2023-06-16 14:59 108阅读 0赞

## 一、在有效期内，动态的获取钉钉access\_token ##

在钉钉开放平台下载最新的 sdk

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将下好的sdk 导入项目中：

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<dependency>
                <groupId>com.taobao.top</groupId>
                <artifactId>top-api-sdk-dev</artifactId>
                <version>dingtalk-SNAPSHOT</version>
                <scope>system</scope>
                <systemPath>${ pom.basedir}/lib/taobao-sdk-java-auto_1479188381469-20191126.jar</systemPath>
            </dependency>

编写在有效期内动态获取token的程序：

package cn.mesmile.springboot.learn.dingding;
    
    import com.dingtalk.api.DefaultDingTalkClient;
    import com.dingtalk.api.request.OapiGettokenRequest;
    import com.dingtalk.api.response.OapiGettokenResponse;
    import com.taobao.api.ApiException;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    
    import java.util.HashMap;
    import java.util.Map;
    
    /** * @author zb * @date 2019/11/26 22:40 * @Description: */
    public class DingTalkToken { 
    
        private static final Logger logger = LoggerFactory.getLogger(DingTalkToken.class);
    
        /** * 发动请求到钉钉获取 token 的url，get方式请求 */
        private static final String GET_TOKEN_URL = "https://oapi.dingtalk.com/gettoken";
    
        /** * 钉钉成功返回的消息 */
        private static final int SUCCESS_CODE = 0;
    
        /** * * 用于缓存获取的 access_token * key 为 appkey * 注：appkey和appsecret在开发者后台创建应用的时候可见 * 一个应用对应一个 appkey 和 appsecret */
        private static Map<String,TokenData> map = new HashMap<>();
    
        /** * 【注意】正常情况下access_token有效期为7200秒，有效期内重复获取返回相同结果，并自动续期。 * @param appkey * @param appsecret * @return */
        public String getToken(String appkey, String appsecret){ 
            // 当前时间 秒
            long currentTime = System.currentTimeMillis() / 1000;
            TokenData tokenData = map.get(appkey);
            if (tokenData == null) { 
                return sendRequest(appkey,appsecret,currentTime);
                // 若缓存中的token过期，重新获取
            }else if (tokenData.expiresIn < currentTime) { 
                return sendRequest(appkey,appsecret,currentTime);
            } else { 
                return tokenData.accessToken;
            }
        }
    
        /** * 发送请求获得 token * @param appkey * @param appsecret * @param currentTime * @return */
        private String sendRequest(String appkey, String appsecret, long currentTime) { 
            try { 
                DefaultDingTalkClient client = new DefaultDingTalkClient(GET_TOKEN_URL);
                OapiGettokenRequest request = new OapiGettokenRequest();
                request.setAppkey(appkey);
                request.setAppsecret(appsecret);
                request.setHttpMethod("GET");
                OapiGettokenResponse response = client.execute(request);
                if (response.getErrcode().intValue() != SUCCESS_CODE) { 
                    logger.error("DingTalk error,errorCode:{} , errmsg:{}",response.getErrcode(),response.getErrmsg());
                }
                String accessToken = response.getAccessToken();
                Long expiresIn = response.getExpiresIn();
                // 过期时间，提前一分钟失效
                TokenData tokenData = new TokenData(accessToken, currentTime + expiresIn - 60);
                // 存入缓存中
                map.put(appkey,tokenData);
                return accessToken;
            } catch (ApiException e) { 
                e.printStackTrace();
                logger.error("DingTalk error,ApiException--->message: {}",e.getMessage());
            }
            return "";
        }
    
        // 内部类存取临时token
        class TokenData { 
            // token
            private String accessToken;
            // 过期时间
            private Long expiresIn;
            TokenData(String accessToken,Long expiresIn){ 
                this.accessToken = accessToken;
                this.expiresIn = expiresIn;
            }
        }
    }

[format_png]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9zcHJpbmdpbWFnZS5vc3MtY24tY2hlbmdkdS5hbGl5dW5jcy5jb20vMjAxOTExMjYyMjUyNTMucG5n?x-oss-process=image/format,png
[format_png 1]: https://imgconvert.csdnimg.cn/aHR0cHM6Ly9zcHJpbmdpbWFnZS5vc3MtY24tY2hlbmdkdS5hbGl5dW5jcy5jb20vMjAxOTExMjYyMjU1MzUucG5n?x-oss-process=image/format,png