实体类实现

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

@@ -1,16 +0,0 @@
-package com.example.springdemo.entities;
-
-import lombok.AllArgsConstructor;
-import lombok.Builder;
-import lombok.Data;
-import lombok.NoArgsConstructor;
-
-@Data
-@Builder
-@NoArgsConstructor
-@AllArgsConstructor
-public class Business {
-    private String name;
-    private String tel;
-    private String address;
-}

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

@@ -0,0 +1,24 @@
+package com.example.springdemo.entities;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+import java.util.Date;
+
+//订单类
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class Indent {
+    private Long id;//订单ID
+
+    private Float allPrice;//菜品总价
+    Date createdDate;//订单创建时间
+    private String message;//下单备注
+
+    private Users userID;//外键，下单用户ID
+    private Merchants merchantsID;//外键，餐厅ID
+}

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

@@ -0,0 +1,22 @@
+package com.example.springdemo.entities;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+//订单中的菜品
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class IndentItem {
+    private Long id;//主键，菜品ID
+    private String name;//菜品名字
+    private Float initialPrice;//菜品原价
+    private Float discount;//折扣
+    private Float finalPrice;//最终价格
+    private String description;//菜品描述
+
+    private Indent indentID;//外键，订单ID
+}

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

@@ -0,0 +1,30 @@
+package com.example.springdemo.entities;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import lombok.*;
+
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+@Entity
+@Table(name = "Merchants")
+
+public class Merchants {
+    @Id
+
+    private Long id;//主键,商家编号
+
+    private String name;//店铺名字
+
+    private String address;//店铺地址
+
+    private String description;//店铺描述
+
+    @Column(name = "phoneNumber")
+    private String phoneNumber;//商家联系方式
+
+}

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

@@ -0,0 +1,19 @@
+package com.example.springdemo.entities;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+//用户类
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class Users {
+    private Long id;//主键，用户ID
+    private String name;//用户姓名
+    private String phoneNumber;//用户联系方式
+    private String address;//家庭住址
+    private String password;//用户密码
+}