diff --git a/src/main/java/com/yxt/ss/gateway/api/rest/ApiTestRest.java b/src/main/java/com/yxt/ss/gateway/api/rest/ApiTestRest.java
new file mode 100644
index 0000000..e69de29
diff --git a/src/main/java/com/yxt/ss/gateway/api/rest/Signature.java b/src/main/java/com/yxt/ss/gateway/api/service/Signature.java
similarity index 93%
rename from src/main/java/com/yxt/ss/gateway/api/rest/Signature.java
rename to src/main/java/com/yxt/ss/gateway/api/service/Signature.java
index 91aaef1..93fba50 100644
--- a/src/main/java/com/yxt/ss/gateway/api/rest/Signature.java
+++ b/src/main/java/com/yxt/ss/gateway/api/service/Signature.java
@@ -36,12 +36,14 @@ public class Signature {
         ResultBean rb = ResultBean.fireFail();
         Map<String, String> parameters = data;
         //1、解析参数，校验_app是否正确，_t是否在5分钟内。
+
+        //检验_app 参数，1参数中是否存在2该参数是否为空3_app参数值是否在数据库中存在
         if (!parameters.containsKey("_app") ||
                 parameters.get("_app") == null ||
                 parameters.get("_app").trim().isEmpty()) {
             return rb.setMsg("_app参数缺失或无效");
         }
-        //2、根据_app参数获取对应的secret值。
+        //2、根据_app参数获取对应的secret值。后续考虑从数据库中获取。
         String secret = getSecret(parameters.get("_app"));
         if (StringUtils.isEmpty(secret)) {
             return rb.setMsg("_app参数不正确");
diff --git a/src/main/java/com/yxt/ss/gateway/api/utils/SignatureUtil.java b/src/main/java/com/yxt/ss/gateway/api/utils/SignatureUtil.java
index 3c71acc..318b1af 100644
--- a/src/main/java/com/yxt/ss/gateway/api/utils/SignatureUtil.java
+++ b/src/main/java/com/yxt/ss/gateway/api/utils/SignatureUtil.java
@@ -23,9 +23,10 @@ public class SignatureUtil {
      * @return 签名
      */
     public static String generateSignature(Map<String, String> parameters, String secret) throws UnsupportedEncodingException, NoSuchAlgorithmException {
-
+       //1.对参数进行排序
+        Map<tring, String> treeMap=new TreeMap<>(parameters);
         // 2. 拼接参数字符串
-        String content = joinParameters(parameters);
+        String content = joinParameters(treeMap);
 
         // 3. 将密钥加在参数字符串的前后
         content = secret + content + secret;