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src/main/java/com/example/demo/common/utils/WebHookUtil.java

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+package com.example.demo.common.utils;
+
+import cn.hutool.core.util.StrUtil;
+import cn.hutool.http.HttpUtil;
+import com.alibaba.fastjson2.JSON;
+import lombok.SneakyThrows;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.codec.binary.Base64;
+
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.util.HashMap;
+import java.util.Map;
+
+@Slf4j
+public class WebHookUtil {
+
+    @SneakyThrows
+    public static void main(String[] args) {
+        demo01();
+    }
+
+    @SneakyThrows
+    private static void demo01() {
+
+        webHook(
+                "key",
+                "通知",
+                "",
+                """
+                        任务执行\r
+                            核心思想：化整为零，动态调整\r
+                            将复杂的项目目标分解为一个个可执行、可跟踪、可验收的小任务，并通过持续的沟通和调整来确保方向正确。\r
+                        注：本消息由 虚兵001 提供""");
+
+        webHook(
+                "key",
+                "最新通知",
+                "",
+                """
+                        AI资讯：\r
+                            - 多模态模型社区全新升级，LiblibAI 2.0正式上线\r
+                            - 快手推出AI原生IDE工具：CodeFlicker，对标Cursor\r
+                            - 蚂蚁百灵正式发布Ling 2.0系列的首款旗舰非思考模型——Ling-1T\r
+                        注：本消息由 虚兵002 提供""");
+
+        String secret = "secret";
+        webHook(
+                "key",
+                "通知",
+                secret,
+                "北京市朝阳区今天实况：" +
+                        "\n  17度 晴，湿度：62%，北风：1级。" +
+                        "\n  白天：22度,晴。 " +
+                        "\n  夜间：晴，11度，温度适中。" +
+                        "\n注：本消息由 虚兵003 提供");
+        webHook(
+                "key",
+                "",
+                secret,
+                "今天中国的黄金价格是 每克 CN¥921.28 ， 24k 金子, 每克 CN¥844.51 " +
+                        "\n注：本消息由 虚兵003 提供");
+
+    }
+
+    public static void webHook(String url, String prefix, String secret, String message) throws NoSuchAlgorithmException, InvalidKeyException {
+        String baseURL = "https://open.feishu.cn/open-apis/bot/v2/hook/";
+        int timestamp = (int) (System.currentTimeMillis() / 1000);
+        String sign = GenSign(secret, timestamp);
+        String fullMessage = StrUtil.isBlank(prefix) ? message : String.format("%s：\n  %s", prefix, message);
+        Map<String, Object> requestData = createMessage(sign, timestamp, fullMessage);
+        String fullURL = String.format("%s%s", baseURL, url);
+        // 直接发送map报错参数错误
+        // String responseData = HttpUtil.post(fullURL, requestData);
+        String responseData = HttpUtil.post(fullURL, JSON.toJSONString(requestData));
+        log.info("responseData: {}", responseData);
+        log.info("URL: {}", fullURL);
+        log.info("requestData: {}", JSON.toJSONString(requestData));
+    }
+
+    public static String createWebHookData(String secret, String message) throws NoSuchAlgorithmException, InvalidKeyException {
+        int timestamp = (int) (System.currentTimeMillis() / 1000);
+        String sign = GenSign(secret, timestamp);
+        Map<String, Object> requestData = createMessage(sign, timestamp, message);
+        @SuppressWarnings("all")
+        String requestJSONString = JSON.toJSONString(requestData);
+        return requestJSONString;
+    }
+
+    private static Map<String, Object> createMessage(String secret, int timestamp, String message) throws NoSuchAlgorithmException, InvalidKeyException {
+        Map<String, Object> map = new HashMap<>();
+        if(StrUtil.isNotBlank(secret)) {
+            map.put("timestamp", timestamp);
+            map.put("sign", secret);
+        }
+        map.put("msg_type", "text");
+
+        Map<String, Object> content = new HashMap<>();
+        content.put("text", message);
+        map.put("content", content);
+        return map;
+    }
+
+    public static String createWebHook(String message) {
+        return null;
+    }
+
+    private static String GenSign(String secret, int timestamp) throws NoSuchAlgorithmException, InvalidKeyException {
+        if(StrUtil.isBlank(secret)) {
+            return null;
+        }
+        //把timestamp+"\n"+密钥当做签名字符串
+        String stringToSign = timestamp + "\n" + secret;
+        //使用HmacSHA256算法计算签名
+        Mac mac = Mac.getInstance("HmacSHA256");
+        mac.init(new SecretKeySpec(stringToSign.getBytes(StandardCharsets.UTF_8), "HmacSHA256"));
+        byte[] signData = mac.doFinal(new byte[]{});
+        return new String(Base64.encodeBase64(signData));
+    }
+
+}