【Java用法】拿来即用--使用Java开发连接钉钉H5微应用实现钉钉通知提醒的功能（方式二）

墨蓝 2022-10-05 10:58 881阅读 0赞

**本文目录**

一、项目背景

二、详细步骤

2.1 步骤一：添加依赖

2.2 步骤二、添加使用的工具类

2.3 步骤三、添加配置文件application-local.yml

2.4 步骤四、在业务中添加发送钉钉通知的代码

三、最终效果

四、拓展文件

--------------------

另外实现一种方式，非常简单，代码粘下来就可以用：[【Java用法】使用Java开发连接钉钉应用实现钉钉通知的功能][Java_Java]

# 一、项目背景 #

项目架构是：**Springboot (2.0.0.RELEASE) + maven (2.18.1) + mybatis-plus (3.1.1) + jdk1.8**

前几天在钉钉创建了一个H5微应用，上线运行几天之后，又增加了新的需求，即当有人评论你的日报时，给你发送钉钉通知提醒一下，今天又通过另一种方式实现了钉钉通知的功能。

# 二、详细步骤 #

## 2.1 步骤一：添加依赖 ##

<dependency>
 <groupId>com.aliyun</groupId>
 <artifactId>alibaba-dingtalk-service-sdk</artifactId>
 <version>1.0.1</version>
 </dependency>

## 2.2 步骤二、添加使用的工具类 ##

参考本文拓展里的内容

## 2.3 步骤三、添加配置文件application-local.yml ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDI5OTAyNw_size_16_color_FFFFFF_t_70][]

## 2.4 步骤四、在业务中添加发送钉钉通知的代码 ##

@Override
 public JsonResult addComment(User user, DailyJobComment dailyJobComment) {
 
 if (user == null) {
 log.error("E|DailyCommentServiceImpl|addComment()|新增日报评论时，获取当前登录人失败！");
 return JsonResult.fail("获取当前登录人失败！");
 }
 
 String userName = user.getUserName();
 String trueName = user.getTrueName();
 dailyJobComment.setCreateUser(userName);
 dailyJobComment.setCreateName(trueName);
 dailyJobComment.setCreateTime(new Date());
 
 int insert = dailyCommentMapper.insert(dailyJobComment);
 if (insert > 0) {
 log.info("E|DailyCommentServiceImpl|addComment()|新增日报评论成功，当前登录人 trueName = {}", trueName);
 this.executeDingInform(dailyJobComment);
 return JsonResult.ok("新增日报评论成功");
 }
 
 return JsonResult.fail("新增日报评论失败！");
 }
 
 /**
 * 执行钉钉通知
 *
 * @param dailyJobComment 日报评论内容
 */
 private void executeDingInform(DailyJobComment dailyJobComment) {
 
 // 获取钉钉用户id
 Integer jobId = dailyJobComment.getJobId();
 DailyJob dailyJob = dailyJobMapper.selectById(jobId);
 DailyViewUser dailyViewUser = dailyViewUserMapper.getDailyViewUserByUsername(dailyJob.getCreateUser());
 String userName = dailyViewUser.getUserName();
 String dingUserId = dailyViewUser.getDingUserId();
 String createName = dailyJobComment.getCreateName();
 // 评论创建时间
 Date createTime = dailyJobComment.getCreateTime();
 ThreadUtil.excAsync(new Runnable() {
 @Override
 public void run() {
 DingTalkMsg dingTalkMsg = new DingTalkMsg();
 dingTalkMsg.setAuthor(createName + " " + DateUtil.format(createTime, "yyyy年MM月dd日 HH:mm:ss"));
 dingTalkMsg.setContent("");
 dingTalkMsg.setTitle("日报评论通知");
 dingTalkMsg.setMsgType("oa");
 dingTalkMsg.setUserList(Objects.isNull(dingUserId) ? userName : dingUserId);
 dingTalkMsg.setFromList(getFormList());
 dingTalkWorkNotice.sendDingMsg(dingTalkMsg);
 }
 
 private List<OapiMessageCorpconversationAsyncsendV2Request.Form> getFormList() {
 List<OapiMessageCorpconversationAsyncsendV2Request.Form> formList = DingDingMsg.create("【" + createName + "】评论了你【",
 DateUtil.format(dailyJob.getCreateTime(), "yyyy-MM-dd HH:mm:ss") + "】创建的日报")
 .builder("评论内容：", dailyJobComment.getContent())
 .builder("评论时间：", DateUtil.format(createTime, "yyyy-MM-dd HH:mm:ss"))
 .collect();
 
 log.info("E|DailyCommentServiceImpl|getDingInformContent()|新增日报评论成功时，封装钉钉通知内容 = {}", formList);
 
 return formList;
 }
 
 }, true);
 }

# 三、最终效果 #

实现的最终效果是，当有人评论了你的日报时，钉钉客户端就会向你推送一条消息，至于推送的内容，可以自己定制的。以下就是我本次实现的最终效果。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDI5OTAyNw_size_16_color_FFFFFF_t_70 1][]

# 四、拓展文件 #

2.2 步骤二中使用的工具类有以下五个（**DingTalkMsg.class，DingTalkParams.class，DingDingMsg.class，DingTalkUrlConstants.class，DingTalkWorkNotice.class**）

package com.iot.daily.dingding.domain;
 
 import com.dingtalk.api.request.OapiMessageCorpconversationAsyncsendV2Request;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
 import java.util.List;
 
 /**
 * DingTalkMsg.java此类用于
 *
 * @author: hjm
 * @date: 2021/4/14
 * @remark:
 */
 @Data
 @AllArgsConstructor
 @NoArgsConstructor
 public class DingTalkMsg {
 
 @ApiModelProperty(value = "消息类型")
 private String msgType;
 
 @ApiModelProperty(value = "通知标题")
 private String title;
 
 @ApiModelProperty(value = "通知内容")
 private String content;
 
 @ApiModelProperty(value = "通知人员dingUserId列表")
 private String userList;
 
 @ApiModelProperty(value = "消息链接地址")
 private String url;
 
 @ApiModelProperty(value = "OA Form 表单内容")
 private List<OapiMessageCorpconversationAsyncsendV2Request.Form> fromList;
 
 @ApiModelProperty(value = "提醒人")
 private String author;
 }

package com.iot.daily.dingding.domain;
    
    import lombok.Data;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.context.annotation.Configuration;
    
    /**
     * @author openapi@dingtalk
     * @date 2020/2/4
     */
    @Configuration
    @Data
    public class DingTalkParams {
    
        @Value("${dingtalk.app_key}")
        private String appKey;
    
        @Value("${dingtalk.app_secret}")
        private String appSecret;
    
        @Value("${dingtalk.agent_id}")
        private long agentId;
    
        @Value("${dingtalk.corp_id}")
        private String corpId;
    
        @Value("${dingtalk.is_open}")
        private String isOpen;
    }

package com.iot.daily.dingding.util;
 
 import com.dingtalk.api.request.OapiMessageCorpconversationAsyncsendV2Request;
 
 import java.util.ArrayList;
 import java.util.List;
 
 
 /**
 * 构建钉钉发送消息
 *
 * @author hjm
 * @date 2019-04-24
 */
 public class DingDingMsg {
 
 private List<OapiMessageCorpconversationAsyncsendV2Request.Form> mapList = new ArrayList<>();
 
 private DingDingMsg() {
 
 }
 
 public static DingDingMsg create(String key, String value) {
 return (new DingDingMsg()).builder(key, value);
 }
 
 public DingDingMsg builder(String key, String value) {
 
 OapiMessageCorpconversationAsyncsendV2Request.Form form = new OapiMessageCorpconversationAsyncsendV2Request.Form();
 form.setKey(key);
 form.setValue(value);
 mapList.add(form);
 return this;
 }
 
 public List<OapiMessageCorpconversationAsyncsendV2Request.Form> collect() {
 return this.mapList;
 }
 
 }

package com.iot.daily.common.constant;
 
 /**
 * DingTalkUrlConstants 此类用于：调用钉钉API路径URL
 * @author：hjm
 * @date：2021年06月08日 11:20
 * @remark：
 */
 public class DingTalkUrlConstants {
 
 private static final String HOST = "https://oapi.dingtalk.com";
 
 /**
 * 钉钉网关 gettoken 地址
 */
 public static final String URL_GET_TOKEN = HOST + "/gettoken";
 
 /**
 * 获取 jsapi_ticket 地址
 */
 public static final String URL_GET_JSTICKET = HOST + "/get_jsapi_ticket";
 
 /**
 * 发送钉钉工作通知接口URL
 */
 public static final String URL_SEND_WORK_NOTICE = HOST + "/topapi/message/corpconversation/asyncsend_v2";
 
 /**
 * 获取用户在企业内 userId 的接口URL
 */
 public static final String URL_GET_USER_INFO = HOST + "/user/getuserinfo";
 
 /**
 * 获取用户姓名的接口URL
 */
 public static final String URL_USER_GET = HOST + "/user/get";
 
 /**
 * 获取部门列表接口URL
 */
 public static final String URL_DEPARTMENT_LIST = HOST + "/department/list";
 
 /**
 * 获取部门用户接口URL
 */
 public static final String URL_USER_SIMPLELIST = HOST + "/user/simplelist";
 }

package com.iot.daily.dingding.util;
 
 import cn.hutool.core.util.StrUtil;
 import com.alibaba.fastjson.JSONObject;
 import com.dingtalk.api.DefaultDingTalkClient;
 import com.dingtalk.api.DingTalkClient;
 import com.dingtalk.api.request.OapiGetJsapiTicketRequest;
 import com.dingtalk.api.request.OapiGettokenRequest;
 import com.dingtalk.api.request.OapiMessageCorpconversationAsyncsendV2Request;
 import com.dingtalk.api.response.OapiGetJsapiTicketResponse;
 import com.dingtalk.api.response.OapiGettokenResponse;
 import com.dingtalk.api.response.OapiMessageCorpconversationAsyncsendV2Response;
 import com.taobao.api.ApiException;
 import com.iot.daily.common.constant.CommonConstants;
 import com.iot.daily.common.constant.DingTalkUrlConstants;
 import com.iot.daily.common.util.cache.RedisCache;
 import com.iot.daily.dingding.domain.DingTalkMsg;
 import com.iot.daily.dingding.domain.DingTalkParams;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
 
 import javax.annotation.Resource;
 import java.util.List;
 
 /**
 * DingTalkWorkNotice.java此类用于钉钉自定义机器人
 *
 * @author:hjm
 * @date:2021年4月7日
 * @remark:
 */
 @Slf4j
 @Component
 public class DingTalkWorkNotice {
 
 /**
 * 缓存时间：一小时50分钟
 */
 private static final long CACHE_TTL = 60 * 55 * 2 * 1000;
 
 @Resource
 private DingTalkParams dingTalkParams;
 
 @Resource
 private RedisCache cache;
 
 private final String IS_OPEN = "true";
 private final String MSG_TYPE_OA = "oa";
 private final String MSG_TYPE_LINK = "link";
 private final String MSG_TYPE_ACTION_CARD = "action_card";
 
 /**
 * 向钉钉发送消息
 *
 * @param dingTalkMsg 实例对象
 */
 public void sendDingMsg(DingTalkMsg dingTalkMsg) {
 
 String msgType = dingTalkMsg.getMsgType();
 String title = dingTalkMsg.getTitle();
 String content = dingTalkMsg.getContent();
 String userList = dingTalkMsg.getUserList();
 String url = dingTalkMsg.getUrl();
 List<OapiMessageCorpconversationAsyncsendV2Request.Form> fromList = dingTalkMsg.getFromList();
 String author = dingTalkMsg.getAuthor();
 
 DingTalkClient client = new DefaultDingTalkClient(DingTalkUrlConstants.URL_SEND_WORK_NOTICE);
 
 OapiMessageCorpconversationAsyncsendV2Request request = new OapiMessageCorpconversationAsyncsendV2Request();
 request.setAgentId(dingTalkParams.getAgentId());
 request.setUseridList(userList);
 request.setToAllUser(false);
 
 OapiMessageCorpconversationAsyncsendV2Request.Msg msg = new OapiMessageCorpconversationAsyncsendV2Request.Msg();
 
 // 消息类型
 switch (msgType) {
 case MSG_TYPE_OA:
 msg.setOa(new OapiMessageCorpconversationAsyncsendV2Request.OA());
 msg.getOa().setHead(new OapiMessageCorpconversationAsyncsendV2Request.Head());
 msg.getOa().getHead().setText("head");
 msg.getOa().setBody(new OapiMessageCorpconversationAsyncsendV2Request.Body());
 msg.getOa().getBody().setTitle(title);
 msg.getOa().getBody().setContent(content);
 msg.getOa().getBody().setForm(fromList);
 msg.getOa().getBody().setAuthor(author);
 
 break;
 case MSG_TYPE_LINK:
 msg.setLink(new OapiMessageCorpconversationAsyncsendV2Request.Link());
 msg.getLink().setTitle(title);
 msg.getLink().setText(content);
 msg.getLink().setMessageUrl(url);
 msg.getLink().setPicUrl("test");
 
 break;
 case MSG_TYPE_ACTION_CARD:
 msg.setActionCard(new OapiMessageCorpconversationAsyncsendV2Request.ActionCard());
 msg.getActionCard().setTitle(title);
 msg.getActionCard().setMarkdown(content);
 msg.getActionCard().setSingleTitle("查看详情");
 msg.getActionCard().setSingleUrl(url);
 
 break;
 default:
 break;
 }
 
 msg.setMsgtype(msgType);
 request.setMsg(msg);
 
 OapiMessageCorpconversationAsyncsendV2Response rsp;
 try {
 // 是否开启钉钉提醒
 if (StrUtil.equals(dingTalkParams.getIsOpen(), IS_OPEN)) {
 String accessToken = getAccessToken();
 rsp = client.execute(request, accessToken);
 log.info(rsp.getBody());
 }
 } catch (ApiException e) {
 log.error("发送钉钉工作通知异常：", e);
 }
 }
 
 /**
 * 在此方法中，为了避免频繁获取access_token，
 * 在距离上一次获取access_token时间在两个小时之内的情况，
 * 将直接从持久化存储中读取access_token
 * 
 * 因为access_token和jsapi_ticket的过期时间都是7200秒
 * 所以在获取access_token的同时也去获取了jsapi_ticket
 * 注：jsapi_ticket是在前端页面JSAPI做权限验证配置的时候需要使用的
 * 具体信息请查看开发者文档--权限验证配置
 *
 * @return accessToken 或错误信息
 */
 public String getAccessToken() throws ApiException {
 String redisKey = CommonConstants.DAILY_DING_ACCESS_TOKEN + dingTalkParams.getAppKey();
 
 // 从持久化存储中读取
 String accessToken = getFromCache(redisKey, "access_token");
 if (accessToken != null) {
 return accessToken;
 }
 
 DefaultDingTalkClient client = new DefaultDingTalkClient(DingTalkUrlConstants.URL_GET_TOKEN);
 OapiGettokenRequest request = new OapiGettokenRequest();
 OapiGettokenResponse response;
 
 request.setAppkey(dingTalkParams.getAppKey());
 request.setAppsecret(dingTalkParams.getAppSecret());
 request.setHttpMethod("GET");
 
 try {
 response = client.execute(request);
 } catch (ApiException e) {
 log.error("获取access_token失败异常：{}", e);
 throw e;
 }
 accessToken = response.getAccessToken();
 
 // 持久化accessToken
 putToCache(redisKey, "access_token", accessToken);
 
 return accessToken;
 }
 
 /**
 * 获取JSTicket, 用于js的签名计算
 * 正常的情况下，jsapi_ticket的有效期为7200秒，所以开发者需要在某个地方设计一个定时器，定期去更新jsapi_ticket
 *
 * @return jsTicket或错误信息
 */
 public String getJsTicket() throws ApiException {
 // 从持久化存储中读取
 String ticket = getFromCache("jsticket", "ticket");
 if (ticket != null) {
 return ticket;
 }
 
 String accessToken = getAccessToken();
 
 DefaultDingTalkClient client = new DefaultDingTalkClient(DingTalkUrlConstants.URL_GET_JSTICKET);
 OapiGetJsapiTicketRequest request = new OapiGetJsapiTicketRequest();
 OapiGetJsapiTicketResponse response;
 
 request.setHttpMethod("GET");
 
 try {
 response = client.execute(request, accessToken);
 } catch (ApiException e) {
 log.error("获取jsticket失败异常：{}", e);
 throw e;
 }
 
 ticket = response.getTicket();
 
 // 持久化jsticket
 putToCache("jsticket", "ticket", ticket);
 return ticket;
 }
 
 /**
 * 模拟从持久化存储中获取token并检查是否已过期
 *
 * @param section 存储key
 * @param field token字段名
 * @return token值 或 null (过期或未查到)
 */
 private String getFromCache(String section, String field) {
 String beginTimeKey = "begin_time";
 String value = cache.get(section);
 JSONObject o = JSONObject.parseObject(value);
 if (o != null && System.currentTimeMillis() - o.getLong(beginTimeKey) <= CACHE_TTL) {
 return o.getString(field);
 }
 return null;
 }
 
 private void putToCache(String section, String field, String value) {
 JSONObject fieldObj = new JSONObject(2);
 fieldObj.put(field, value);
 fieldObj.put("begin_time", System.currentTimeMillis());
 cache.set(section, fieldObj.toJSONString());
 }
 
 
 }

完结！

[Java_Java]: https://blog.csdn.net/weixin_44299027/article/details/110183411
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