diff --git a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
index bdd6d084..f167710c 100644
--- a/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
+++ b/ess/ess-server/src/main/java/cn/axzo/nanopart/ess/server/ess/EssService.java
@@ -35,8 +35,6 @@ import org.springframework.transaction.support.TransactionTemplate;
 
 import java.util.function.Function;
 
-import static cn.axzo.nanopart.ess.server.utils.BizAssertions.fail;
-
 /**
  * @author yanglin
  */
@@ -68,14 +66,14 @@ public class EssService {
     public String getEmbedWebUrl(GetEmbedWebUrlRequest request) {
         EssPerson contextPerson;
         if (request.getEmbedType().getEssContext() == EssContext.CONTRACT) {
-            BizAssertions.assertNotNull(request.getBusinessId(), "合同ID不能为空");
+            BizAssertions.assertNotBlank(request.getBusinessId(), "合同ID不能为空");
             EssContract contract = essContractDao.getOrThrow(request.getBusinessId());
             contextPerson = contractManager.getContractSuperAdmin(contract);
         } else if (request.getEmbedType().getEssContext() == EssContext.SEAL) {
-            BizAssertions.assertNotNull(request.getBusinessId(), "印章ID不能为空");
+            BizAssertions.assertNotBlank(request.getBusinessId(), "印章ID不能为空");
             contextPerson = orgManager.getSuperAdminOrThrow(request.getOuId());
         } else {
-            throw fail("不支持的嵌入类型: {}", request.getEmbedType());
+            contextPerson = orgManager.getSuperAdminOrThrow(request.getOuId());
         }
         return essClient.getEmbedWebUrl(
                 contextPerson, request.getEmbedType(), request.getBusinessId());
@@ -168,11 +166,6 @@ public class EssService {
         maybeUploadContractToOss(c);
     }
 
-    public String getContractPDFUrlFromEss(EssContract contract) {
-        EssPerson creator = orgManager.getSuperAdminOrThrow(contract.getCreatorOuId());
-        return essClient.getContractPDFUrl(creator, contract.getEssContractId());
-    }
-
     public void maybeUploadContractToOss(EssContract contract) {
         essSupport.asyncExec(() -> {
             try {
@@ -190,4 +183,9 @@ public class EssService {
         });
     }
 
+    private String getContractPDFUrlFromEss(EssContract contract) {
+        EssPerson creator = orgManager.getSuperAdminOrThrow(contract.getCreatorOuId());
+        return essClient.getContractPDFUrl(creator, contract.getEssContractId());
+    }
+
 }
\ No newline at end of file