java封装一个钉钉机器人的工具类

package cn.tools;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.codec.binary.Base64;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;


public class DingDingTools {

    private final String WEBHOOK_TOKEN;

    public DingDingTools(String token) {
        WEBHOOK_TOKEN = token;
    }

    //获取加签名后的token
    public static String getSecretToken(String token, String secret) throws NoSuchAlgorithmException, IOException, InvalidKeyException {
        Long timestamp = System.currentTimeMillis();
        String stringToSign = timestamp + "\n" + secret;
        Mac mac = Mac.getInstance("HmacSHA256");
        mac.init(new SecretKeySpec(secret.getBytes(StandardCharsets.UTF_8), "HmacSHA256"));
        byte[] signData = mac.doFinal(stringToSign.getBytes(StandardCharsets.UTF_8));
        String sign = URLEncoder.encode(new String(Base64.encodeBase64(signData)), "UTF-8");
        return token + "&timestamp=" + timestamp + "&sign=" + sign;
    }


    private String send(String textMsg) throws IOException {
        CloseableHttpClient httpClient = HttpClients.createDefault();
        HttpPost httpPost = new HttpPost(WEBHOOK_TOKEN);
        httpPost.addHeader("Content-Type", "application/json; charset=utf-8");

        StringEntity se = new StringEntity(textMsg, "utf-8");
        httpPost.setEntity(se);

        CloseableHttpResponse response = httpClient.execute(httpPost);
        if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
            String result = EntityUtils.toString(response.getEntity(), "utf-8");
            System.out.println("发送钉钉消息成功 " + result);
            return result;
        } else {
            System.out.println("发送钉钉消息失败");
        }
        // 关闭
        httpClient.close();
        response.close();

        return "发送钉钉消息失败";
    }


    //发送text格式的消息
    public String text(String mag, String[] atMobile, boolean isAtAll) throws IOException {
        JSONObject object = new JSONObject();
        JSONObject object_text = new JSONObject();
        JSONObject object_at = new JSONObject();

        object_text.put("content", mag);
        object_at.put("atMobiles", atMobile);
        object_at.put("isAtAll", isAtAll);

        object.put("msgtype", "text");
        object.put("text", object_text);
        object.put("at", object_at);


        return send(String.valueOf(object));
    }

    //发送link格式的消息
    public String link(String title, String text, String messageUrl, String picUrl) throws IOException {
        JSONObject object = new JSONObject();
        JSONObject object_link = new JSONObject();

        object_link.put("text", text);
        object_link.put("title", title);
        object_link.put("picUrl", picUrl);
        object_link.put("messageUrl", messageUrl);
        object.put("msgtype", "link");
        object.put("link", object_link);

        return send(String.valueOf(object));

    }

    //发送markdown格式的消息
    public String markdown(String title, String text, String atMobile, boolean isAtAll) throws IOException {
        JSONObject object = new JSONObject();
        JSONObject object_markdown = new JSONObject();
        JSONObject object_at = new JSONObject();

        object_markdown.put("title", title);
        object_markdown.put("text", text);
        object_at.put("atMobiles", atMobile);
        object_at.put("isAtAll", isAtAll);

        object.put("msgtype", "markdown");
        object.put("markdown", object_markdown);
        object.put("at", object_at);

        return send(String.valueOf(object));
    }

    //整体跳转ActionCard类型
    public String actionCard(String title, String text, String singleTitle, String singleURL, int btnOrientation) throws IOException {
        JSONObject object = new JSONObject();
        JSONObject object_actionCard = new JSONObject();

        object_actionCard.put("title", title);
        object_actionCard.put("text", text);
        object_actionCard.put("btnOrientation", btnOrientation);
        object_actionCard.put("singleTitle", singleTitle);
        object_actionCard.put("singleURL", singleURL);

        object.put("actionCard", object_actionCard);
        object.put("msgtype", "actionCard");

        return send(String.valueOf(object));

    }

    //独立跳转ActionCard类型
    public String actionCard1(String title, String text, String btnsTitle1, String btnsTitle2, String actionURL1, String actionURL2, int btnOrientation) throws IOException {
        JSONObject object = new JSONObject();
        JSONObject object_actionCard1 = new JSONObject();
        JSONObject object_btns1 = new JSONObject();
        JSONObject object_btns2 = new JSONObject();

        object_btns1.put("title", btnsTitle1);
        object_btns1.put("actionURL", actionURL1);
        object_btns2.put("title", btnsTitle2);
        object_btns2.put("actionURL", actionURL2);

        object_actionCard1.put("title", title);
        object_actionCard1.put("text", text);
        object_actionCard1.put("btnOrientation", btnOrientation);

        JSONArray btns = new JSONArray();
        btns.add(object_btns1);
        btns.add(object_btns2);
        object_actionCard1.put("btns", btns);

        object.put("actionCard", object_actionCard1);
        object.put("msgtype", "actionCard");

        return send(String.valueOf(object));
    }

    //FeedCard类型
    public String feedCard(String title1, String messageURL1, String picURL1, String title2, String messageURL2, String picURL2) throws IOException {
        JSONObject object = new JSONObject();
        JSONObject object_feedCard = new JSONObject();
        JSONObject object_link1 = new JSONObject();
        JSONObject object_link2 = new JSONObject();

        object_link1.put("title", title1);
        object_link1.put("messageURL", messageURL1);
        object_link1.put("picURL", picURL1);

        object_link2.put("title", title2);
        object_link2.put("messageURL", messageURL2);
        object_link2.put("picURL", picURL2);

        JSONArray links = new JSONArray();
        links.add(object_link1);
        links.add(object_link2);
        object_feedCard.put("links", links);

        object.put("feedCard", object_feedCard);
        object.put("msgtype", "feedCard");

        return send(String.valueOf(object));
    }
}