java使用钉钉机器人应用向单人推送钉钉消息

首先在pom.xml文件中添加依赖，也可以到钉钉官网下载

        
            com.aliyun
            dingtalk
            1.1.88
        

具体工具类代码

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.aliyun.dingtalkrobot_1_0.models.BatchSendOTOHeaders;
import com.aliyun.dingtalkrobot_1_0.models.BatchSendOTORequest;
import com.aliyun.tea.TeaException;
import com.aliyun.teaopenapi.models.Config;
import com.aliyun.teautil.models.RuntimeOptions;
import com.dingtalk.api.DefaultDingTalkClient;
import com.dingtalk.api.DingTalkClient;
import com.dingtalk.api.request.OapiGettokenRequest;
import com.dingtalk.api.response.OapiGettokenResponse;
import com.aliyun.dingtalkrobot_1_0.Client;
import com.taobao.api.ApiException;


public class DingUtil {

	//企业凭证，两小时一更新
	private static String enterpriseToken = "6082435a58393675b4ff83d6630f53cc";
	//应用凭证
	private static String appkey = "XXXXXXXXXXXXXXXXXX";
	private static String appsecret = "XXXXXXXXXXXXXXXXX";

	//获取token,每两小时失效
	private static void gettoken() {
		try {
			DingTalkClient client = new DefaultDingTalkClient("https://oapi.dingtalk.com/gettoken");
			OapiGettokenRequest req = new OapiGettokenRequest();
			req.setAppkey(appkey);
			req.setAppsecret(appsecret);
			req.setHttpMethod("GET");
			OapiGettokenResponse rsp = client.execute(req);
			System.out.println("token:" + rsp.getBody());
			JSonObject json = JSON.parseObject(rsp.getBody());
			enterpriseToken = json.getString("access_token");
		} catch (ApiException e) {
			e.printStackTrace();
		}
	}

	
	public static Client createClient() throws Exception {
		Config config = new Config();
		config.protocol = "https";
		config.regionId = "central";
		return new Client(config);
	}

	
	public static void createDingNotify(String dingUserId,String content) throws Exception{
		com.aliyun.dingtalkrobot_1_0.Client client = createClient();
		BatchSendOTOHeaders batchSendOTOHeaders = new BatchSendOTOHeaders();
		batchSendOTOHeaders.xAcsDingtalkAccessToken = enterpriseToken;
		BatchSendOTORequest batchSendOTORequest = new BatchSendOTORequest()
				.setRobotCode(appkey)//机器人appkey
				.setUserIds(java.util.Arrays.asList(
						dingUserId
				))
				.setMsgKey("officialTextMsg")
				.setMsgParam("{ "content": ""+content+"" }");
		try {
			client.batchSendOTOWithOptions(batchSendOTORequest, batchSendOTOHeaders, new RuntimeOptions());
		}
		catch (TeaException err) {
			if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
				System.err.println(err.code+":"+err.message);
				// err 中含有 code 和 message 属性，可帮助开发定位问题
				//企业凭证enterpriseToken不合法导致出错时获取新企业凭证并重试
				if(err.code.equals("InvalidAuthentication")){
					gettoken();
					createDingNotify(dingUserId,content);
				}
			}
		}
		catch (Exception _err) {
			TeaException err = new TeaException(_err.getMessage(), _err);
			if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
				System.err.println(err.code+":"+err.message);
				// err 中含有 code 和 message 属性，可帮助开发定位问题
			}

		}
	}



	public static void main(String[] args_) throws Exception {
		createDingNotify("[钉钉用户id]","[发送的消息内容]");
	}

}

需要替换应用凭证 appkey 和 appsecret ，在钉钉后台创建应用后钉钉会给出，注意必须使用机器人类型的应用的凭证