diff --git a/pom.xml b/pom.xml
index 7724959..2df0aa2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -108,7 +108,21 @@
             <artifactId>springfox-swagger2</artifactId>
             <version>2.9.2</version>
         </dependency>
-
+        <dependency>
+            <groupId>com.syjiaer.common</groupId>
+            <artifactId>bcpkix</artifactId>
+            <version>1.60</version>
+        </dependency>
+        <dependency>
+            <groupId>com.syjiaer.common</groupId>
+            <artifactId>bcprov</artifactId>
+            <version>1.60</version>
+        </dependency>
+        <dependency>
+            <groupId>com.syjiaer.common</groupId>
+            <artifactId>EncUtil</artifactId>
+            <version>1.00</version>
+        </dependency>
         <dependency>
             <groupId>io.springfox</groupId>
             <artifactId>springfox-swagger-ui</artifactId>
diff --git a/src/main/java/com/syjiaer/clinic/server/common/util/EncUtil.java b/src/main/java/com/syjiaer/clinic/server/common/util/EncUtil.java
new file mode 100644
index 0000000..b632270
--- /dev/null
+++ b/src/main/java/com/syjiaer/clinic/server/common/util/EncUtil.java
@@ -0,0 +1,88 @@
+package com.syjiaer.clinic.server.common.util;
+
+import cn.hsaf.common.utils.EasyGmUtils;
+import cn.hsaf.common.utils.SignUtil;
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
+import org.bouncycastle.util.encoders.Hex;
+
+import java.util.Base64;
+
+public class EncUtil {
+
+
+    /**
+     * 加密
+     *
+     * @param data
+     * @param appId
+     * @param appSecret
+     * @return
+     * @throws Exception
+     */
+    public static String encrypt(String data, String appId, String appSecret) throws Exception {
+        //加密流程
+        //用appId加密appSecret获取新秘钥
+        byte[] appSecretEncData = EasyGmUtils.sm4Encrypt(appId.substring(0, 16).getBytes("UTF-8"), appSecret.getBytes("UTF-8"));
+        //新秘钥串
+        byte[] secKey = Hex.toHexString(appSecretEncData).toUpperCase().substring(0, 16).getBytes("UTF-8");
+        //加密0数据
+        String encryptDataStr = Hex.toHexString(EasyGmUtils.sm4Encrypt(secKey, data.getBytes("UTF-8"))).toUpperCase();
+        return encryptDataStr;
+    }
+
+    /**
+     * 解密
+     *
+     * @param data
+     * @param appId
+     * @param appSecret
+     * @return
+     * @throws Exception
+     */
+    public static String decrypt(String data, String appId, String appSecret) throws Exception {
+        byte[] appSecretEncDataDecode = EasyGmUtils.sm4Encrypt(appId.substring(0, 16).getBytes("UTF-8"), appSecret.getBytes("UTF-8"));
+        byte[] secKeyDecode = Hex.toHexString(appSecretEncDataDecode).toUpperCase().substring(0, 16).getBytes("UTF-8");
+        String decryptDataStr = new String(EasyGmUtils.sm4Decrypt(secKeyDecode, Hex.decode(data)));
+        return decryptDataStr;
+    }
+
+    /**
+     * 签名
+     *
+     * @param jsonObject
+     * @param appSecret
+     * @param privateKey
+     * @return
+     * @throws Exception
+     */
+    public static String sign(JSONObject jsonObject, String appSecret, String privateKey) throws Exception {
+        // 获取签名串
+        byte[] signText = SignUtil.getSignText(jsonObject, appSecret).getBytes("UTF-8");
+        byte[] userId = appSecret.getBytes();
+        byte[] prvkey = Base64.getDecoder().decode(privateKey);
+        String responseSign = Base64.getEncoder().encodeToString(EasyGmUtils.signSm3WithSm2(signText, userId, prvkey));
+        return responseSign;
+    }
+
+    /**
+     * 验签
+     *
+     * @param jsonObject
+     * @param appSecret
+     * @param publicKey
+     * @param responseSign
+     * @return
+     * @throws Exception
+     */
+    public static boolean verify(JSONObject jsonObject, String appSecret, String publicKey, String responseSign) throws Exception {
+        //验签
+        byte[] msg = SignUtil.getSignText(jsonObject, appSecret).getBytes("UTF-8");
+        byte[] userIdDecode = appSecret.getBytes("UTF-8");
+        byte[] pubkey = Base64.getDecoder().decode(publicKey);
+        byte[] signData = Base64.getDecoder().decode(responseSign);
+        return EasyGmUtils.verifySm3WithSm2(msg, userIdDecode, signData, pubkey);
+    }
+
+
+}
diff --git a/src/main/java/com/syjiaer/clinic/server/service/diagnosis/DiagnosisService.java b/src/main/java/com/syjiaer/clinic/server/service/diagnosis/DiagnosisService.java
index 734214c..23f9192 100644
--- a/src/main/java/com/syjiaer/clinic/server/service/diagnosis/DiagnosisService.java
+++ b/src/main/java/com/syjiaer/clinic/server/service/diagnosis/DiagnosisService.java
@@ -102,6 +102,15 @@ public class DiagnosisService extends BaseService {
 
     @Transactional(rollbackFor = Exception.class)
     public void save(MedicalRecordSaveDto saveDto) {
+        int regisId =saveDto.getRegistrationId();
+
+        QueryWrapper<Diagnosis> queryWrapperRegis = new QueryWrapper<>();
+        queryWrapperRegis.eq("registration_id", regisId);
+        Diagnosis regisDbDiagnosis = diagnosisMapper.selectOne(queryWrapperRegis);
+        if(regisDbDiagnosis!=null){
+            throw new MessageException("该挂号已完诊，请不要重复完诊");
+        }
+
         if (saveDto == null){
             throw new MessageException("参数不能为空");
         }