diff --git a/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionAddDTO.java b/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionAddDTO.java
index bc8c75d..682f69d 100644
--- a/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionAddDTO.java
+++ b/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionAddDTO.java
@@ -165,7 +165,7 @@ public class CcdiPurchaseTransactionAddDTO implements Serializable {
 
     /** 申请人工号 */
     @NotBlank(message = "申请人工号不能为空")
-    @Size(max = 7, message = "申请人工号长度不能超过7个字符")
+    @Pattern(regexp = "^\\d{7}$", message = "申请人工号必须为7位数字")
     @Schema(description = "申请人工号")
     private String applicantId;
 
@@ -182,7 +182,7 @@ public class CcdiPurchaseTransactionAddDTO implements Serializable {
     private String applyDepartment;
 
     /** 采购负责人工号 */
-    @Size(max = 7, message = "采购负责人工号长度不能超过7个字符")
+    @Pattern(regexp = "^\\d{7}$", message = "采购负责人工号必须为7位数字")
     @Schema(description = "采购负责人工号")
     private String purchaseLeaderId;
 
diff --git a/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionEditDTO.java b/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionEditDTO.java
index b9f8e9b..40a5610 100644
--- a/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionEditDTO.java
+++ b/ruoyi-ccdi/src/main/java/com/ruoyi/ccdi/domain/dto/CcdiPurchaseTransactionEditDTO.java
@@ -165,7 +165,7 @@ public class CcdiPurchaseTransactionEditDTO implements Serializable {
 
     /** 申请人工号 */
     @NotBlank(message = "申请人工号不能为空")
-    @Size(max = 7, message = "申请人工号长度不能超过7个字符")
+    @Pattern(regexp = "^\\d{7}$", message = "申请人工号必须为7位数字")
     @Schema(description = "申请人工号")
     private String applicantId;
 
@@ -182,7 +182,7 @@ public class CcdiPurchaseTransactionEditDTO implements Serializable {
     private String applyDepartment;
 
     /** 采购负责人工号 */
-    @Size(max = 7, message = "采购负责人工号长度不能超过7个字符")
+    @Pattern(regexp = "^\\d{7}$", message = "采购负责人工号必须为7位数字")
     @Schema(description = "采购负责人工号")
     private String purchaseLeaderId;