格式化代码

src/main/java/com/example/springdemo/entities/Users.java

@@ -1,9 +1,6 @@
 package com.example.springdemo.entities;
 
-import jakarta.persistence.Column;
-import jakarta.persistence.Entity;
-import jakarta.persistence.Id;
-import jakarta.persistence.Table;
+import jakarta.persistence.*;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
@@ -18,6 +15,7 @@ import lombok.NoArgsConstructor;
 @Table(name = "Users")
 public class Users {
     @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;//主键，用户ID
     private String name;//用户姓名
     @Column(name = "phoneNumber")