#659 小程序增加上报用户数据后台接口

weixin-java-common/src/main/java/me/chanjar/weixin/common/util/SignUtils.java

@@ -0,0 +1,40 @@
+package me.chanjar.weixin.common.util;
+
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.codec.binary.Hex;
+
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * <pre>
+ *  签名工具类
+ *  Created by BinaryWang on 2018/7/11.
+ * </pre>
+ *
+ * @author <a href="https://github.com/binarywang">Binary Wang</a>
+ */
+@Slf4j
+public class SignUtils {
+  /**
+   * HmacSHA256 签名算法
+   *
+   * @param message 签名数据
+   * @param key     签名密钥
+   */
+  public static String createHmacSha256Sign(String message, String key) {
+    try {
+      Mac sha256 = Mac.getInstance("HmacSHA256");
+      SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes(), "HmacSHA256");
+      sha256.init(secretKeySpec);
+      byte[] bytes = sha256.doFinal(message.getBytes());
+      return Hex.encodeHexString(bytes).toUpperCase();
+    } catch (NoSuchAlgorithmException | InvalidKeyException e) {
+      SignUtils.log.error(e.getMessage(), e);
+    }
+
+    return null;
+  }
+}