发送消息流程

public void getAccessToken() throws Exception {
        Config config = new Config();
        config.protocol = "https";
        config.regionId = "central";
        com.aliyun.dingtalkoauth2_1_0.Client client = new com.aliyun.dingtalkoauth2_1_0.Client(config);
        GetAccessTokenRequest accessTokenRequest = new GetAccessTokenRequest()
                .setAppKey("din*********hgn")
                .setAppSecret("9G_O************mBkhgGIO");
        GetAccessTokenResponse accessToken = client.getAccessToken(accessTokenRequest);
        System.out.println(JSON.toJSONString(accessToken.getBody()));
    }

public void sendMessage() throws Exception {
  Config config = new Config();
  config.protocol = "https";
  config.regionId = "central";
  com.aliyun.dingtalkim_1_0.Client client = new com.aliyun.dingtalkim_1_0.Client(config);
  SendMessageHeaders sendMessageHeaders = new SendMessageHeaders();
  sendMessageHeaders.xAcsDingtalkAccessToken = "<your access token>";
  SendMessageRequest sendMessageRequest = new SendMessageRequest()
    .setSenderId("1107****2120")
    .setReceiverId("1745****8777")
    .setOpenConversationId("14da****2760")
    .setMessageType("text")
    .setMessage("{ \"text\": { \"content\":\"hello world\" } }");

  try {
    SendMessageResponse response = client.sendMessageWithOptions(sendMessageRequest, sendMessageHeaders, new RuntimeOptions());
    System.out.println(JSON.toJSONString(response.getBody()));
  } catch (TeaException err) {
    if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
      System.out.println(err.code);
      System.out.println(err.message);
    }
  } 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.out.println(err.code);
      System.out.println(err.message);
    }
  }
}

public void sendDingMessage() throws Exception {
  Config config = new Config();
  config.protocol = "https";
  config.regionId = "central";
  com.aliyun.dingtalkim_1_0.Client client = new com.aliyun.dingtalkim_1_0.Client(config);
  SendDingMessageHeaders sendDingMessageHeaders = new SendDingMessageHeaders();
  sendDingMessageHeaders.xAcsDingtalkAccessToken = "<your access token>";
  SendDingMessageRequest sendDingMessageRequest = new SendDingMessageRequest()
    .setSenderId("1745****8777")
    .setReceiverId("1107****2120")
    .setOpenConversationId("14da****2760")
    .setMessageType("text")
    .setMessage("{\"text\": {\"content\": \"hello world\"} }")
    .setCode("06f4****d1ec");
  try {
    SendDingMessageResponse response = client.sendDingMessageWithOptions(sendDingMessageRequest, sendDingMessageHeaders, new RuntimeOptions());
    System.out.println(JSON.toJSONString(response.getBody()));
  } catch (TeaException err) {
    if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
      System.out.println(err.code);
      System.out.println(err.message);
    }
  } 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.out.println(err.code);
      System.out.println(err.message);
    }
  }
}

public void sendRobotMessage() throws Exception {
  Config config = new Config();
  config.protocol = "https";
  config.regionId = "central";
  com.aliyun.dingtalkim_1_0.Client client = new com.aliyun.dingtalkim_1_0.Client(config);
  SendRobotMessageHeaders sendRobotMessageHeaders = new SendRobotMessageHeaders();
  sendRobotMessageHeaders.xAcsDingtalkAccessToken = "<your access token>";
  SendRobotMessageRequest sendRobotMessageRequest = new SendRobotMessageRequest()
    .setOpenConversationIds(java.util.Arrays.asList(
      "1745****8777"
    ))
    .setMsgType("text")
    .setMsgContent("{ \"content\": \"我就是我, 是不一样的烟火\"}")
    .setAtDingUserId("1107****2120")
    .setAtAppUserId("1107****2120")
    .setAtAll(true);

  try {
    SendRobotMessageResponse response = client.sendRobotMessageWithOptions(sendRobotMessageRequest, sendRobotMessageHeaders, new RuntimeOptions());
    System.out.println(JSON.toJSONString(response.getBody()));
  } catch (TeaException err) {
    if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
      System.out.println(err.code);
      System.out.println(err.message);
    }
  } 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.out.println(err.code);
      System.out.println(err.message);
    }
  }
}

public void queryUnReadMessage() throws Exception {
  Config config = new Config();
  config.protocol = "https";
  config.regionId = "central";
  com.aliyun.dingtalkim_1_0.Client client = new com.aliyun.dingtalkim_1_0.Client(config);
  QueryUnReadMessageHeaders queryUnReadMessageHeaders = new QueryUnReadMessageHeaders();
  queryUnReadMessageHeaders.xAcsDingtalkAccessToken = "<your access token>";
  QueryUnReadMessageRequest queryUnReadMessageRequest = new QueryUnReadMessageRequest()
    .setAppUserId("1107****2120")
    .setOpenConversationIds(java.util.Arrays.asList(
      "14da****2760"
    ));
  try {
    QueryUnReadMessageResponse response = client.queryUnReadMessageWithOptions(queryUnReadMessageRequest, queryUnReadMessageHeaders, new RuntimeOptions());
    System.out.println(JSON.toJSONString(response.getBody()));
  } catch (TeaException err) {
    if (!com.aliyun.teautil.Common.empty(err.code) && !com.aliyun.teautil.Common.empty(err.message)) {
      System.out.println(err.code);
      System.out.println(err.message);
    }
  } 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.out.println(err.code);
      System.out.println(err.message);
    }
  }
}