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ruoyi-yunxin/src/main/java/com/ruoyi/yunxin/manager/YunxinManager.java

@@ -0,0 +1,28 @@
+package com.ruoyi.yunxin.manager;
+
+import com.ruoyi.yunxin.config.YunxinProperties;
+import com.ruoyi.yunxin.util.CheckSumBuilder;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+@Slf4j
+public class YunxinManager {
+
+    @Autowired
+    private YunxinProperties yunxinProperties;
+
+    public boolean checkNotify(String body,String curTime){
+        try {
+            String appSecret = yunxinProperties.getAppSecret();
+            String verifyMD5 = CheckSumBuilder.getMD5(body);
+            String verifyChecksum = CheckSumBuilder.getCheckSum(appSecret, verifyMD5, curTime);
+            return verifyMD5 != null && verifyMD5.equals(verifyChecksum);
+        }catch (Exception e){
+            log.info("检查云信回调数据失败",e);
+            return false;
+        }
+    }
+
+}

ruoyi-yunxin/src/main/java/com/ruoyi/yunxin/util/CheckSumBuilder.java

@@ -0,0 +1,44 @@
+package com.ruoyi.yunxin.util;
+
+import java.security.MessageDigest;
+
+public class CheckSumBuilder {
+
+    // 计算并获取CheckSum
+    public static String getCheckSum(String appSecret, String nonce, String curTime) {
+        return encode("sha1", appSecret + nonce + curTime);
+    }
+
+    // 计算并获取md5值
+    public static String getMD5(String requestBody) {
+        return encode("md5", requestBody);
+    }
+
+    private static String encode(String algorithm, String value) {
+        if (value == null) {
+            return null;
+        }
+        try {
+            MessageDigest messageDigest = MessageDigest.getInstance(algorithm);
+            messageDigest.update(value.getBytes());
+            return getFormattedText(messageDigest.digest());
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+
+    }
+
+    private static String getFormattedText(byte[] bytes) {
+        int len = bytes.length;
+        StringBuilder buf = new StringBuilder(len * 2);
+        for (int j = 0; j < len; j++) {
+            buf.append(HEX_DIGITS[(bytes[j] >> 4) & 0x0f]);
+            buf.append(HEX_DIGITS[bytes[j] & 0x0f]);
+        }
+        return buf.toString();
+
+    }
+
+    private static final char[] HEX_DIGITS = {'0', '1', '2', '3', '4', '5',
+            '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+}