修改客户信息创建时间实现方式

src/main/java/com/example/customervisit/entity/Customer.java

 package com.example.customervisit.entity;
 
+import com.fasterxml.jackson.annotation.JsonFormat;
+import org.springframework.format.annotation.DateTimeFormat;
 import jakarta.persistence.*;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 import lombok.AllArgsConstructor;
+import org.hibernate.annotations.CreationTimestamp;
+import org.hibernate.annotations.UpdateTimestamp;
 
 import java.time.LocalDateTime;
 
@@ -282,23 +286,18 @@ public class Customer {
     @Column(name = "region_second_manager_code", length = 50)
     private String regionSecondManagerCode;
 
+    @CreationTimestamp
     @Column(name = "created_at")
     private LocalDateTime createdAt;
 
+    @UpdateTimestamp
     @Column(name = "updated_at")
     private LocalDateTime updatedAt;
 
     @PrePersist
     protected void onCreate() {
-        createdAt = LocalDateTime.now(java.time.ZoneId.of("Asia/Shanghai"));
-        updatedAt = LocalDateTime.now(java.time.ZoneId.of("Asia/Shanghai"));
         if (id == null || id.isEmpty()) {
             id = String.valueOf(System.currentTimeMillis());
         }
     }
-
-    @PreUpdate
-    protected void onUpdate() {
-        updatedAt = LocalDateTime.now(java.time.ZoneId.of("Asia/Shanghai"));
-    }
 }
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