[EDIT] 収支Entityの主キーの型を修正しました。

src/main/java/com/example/demo/app/domain/model/TransactionModel.java

@@ -0,0 +1,22 @@
+package com.example.demo.app.domain.model;
+
+import java.time.LocalDate;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+@Getter
+@AllArgsConstructor
+public class TransactionModel {
+
+	private Long transactionId;
+	
+	private Long userId;
+	
+	private Long categoryId;
+	
+	private Integer amount;
+	
+	private LocalDate transactionDate;
+	
+}

src/main/java/com/example/demo/app/infra/entity/AllocationEntity.java

@@ -0,0 +1,36 @@
+package com.example.demo.app.infra.entity;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToOne;
+import jakarta.persistence.Table;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "allocation")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class AllocationEntity {
+
+	@Id
+	@ManyToOne(fetch = FetchType.LAZY)
+	@JoinColumn(name = "category_id")
+	private CategoryEntity categoryEntity;
+
+	@Id
+	@OneToOne(fetch = FetchType.LAZY)
+	@JoinColumn(name = "course_id")
+	private CourseEntity courseEntity;
+	
+	@Column(name = "allocation_ratio", nullable = false)
+	private Integer allocationRatio;
+
+}

src/main/java/com/example/demo/app/infra/entity/CategoryEntity.java

@@ -0,0 +1,40 @@
+package com.example.demo.app.infra.entity;
+
+import java.util.List;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "category")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CategoryEntity {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "category_id")
+	private Integer categoryId;
+
+	@Column(name = "category_name", nullable = false)
+	private String categoryName;
+
+	@Column(name = "transaction_type", nullable = false)
+	private Integer transactionType;
+	
+	@OneToMany(mappedBy = "categoryEntity")
+	private List<TransactionEntity> transactionEntity;
+	
+	@OneToMany(mappedBy = "categoryEntity")
+	private List<AllocationEntity> allocationEntity;
+}

src/main/java/com/example/demo/app/infra/entity/CourseEntity.java

@@ -0,0 +1,44 @@
+package com.example.demo.app.infra.entity;
+
+import java.util.List;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.OneToOne;
+import jakarta.persistence.Table;
+
+import org.springframework.data.annotation.Id;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "course")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class CourseEntity {
+
+	 @Id
+	 @GeneratedValue(strategy = GenerationType.IDENTITY)
+	 @Column(name = "course_id")
+	 private Integer courseId;
+	 
+	 @Column(name = "course_name", nullable = false)
+	 private String courseName;
+	
+	 
+	 @Column(name = "description", nullable = false)
+	 private String description;
+	 
+	 @OneToMany(mappedBy = "courseEntity")
+	 private List<UserEntity> userEntity;
+	 
+	 @OneToOne(mappedBy = "courseEntity")
+	 private List<AllocationEntity> allocationEntity;
+	 
+}

src/main/java/com/example/demo/app/infra/entity/GoalEntity.java

@@ -0,0 +1,47 @@
+package com.example.demo.app.infra.entity;
+
+import java.time.LocalDate;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToOne;
+import jakarta.persistence.Table;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "goal")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class GoalEntity {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "goal_id")
+	private Integer goalId;
+
+	@Column(name = "goal_title", nullable = true)
+	private String goalTitle;
+	
+	@Column(name = "goal_subtitle", nullable = true)
+	private String goalSubtitle;
+	
+	@Column(name = "target_amount", nullable = false)
+	private Integer targetAmount;
+	
+	@Column(name = "deadline", nullable = false)
+	private LocalDate deadline;
+	
+	@Column(name = "goal_complete", nullable = false)
+	private Integer goalComplete;
+	
+	@OneToOne(mappedBy = "goalEntity")
+	private UserEntity userEntity;
+
+}

src/main/java/com/example/demo/app/infra/entity/QuestionEntity.java

@@ -0,0 +1,35 @@
+package com.example.demo.app.infra.entity;
+
+import java.util.List;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "question")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class QuestionEntity {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "secret_question_id")
+	private Integer secretQuestionId;
+
+	@Column(name = "question_text", nullable = false)
+	private String questionText;
+
+	@OneToMany(mappedBy = "QuestionEntity")
+	private List<UserEntity> userEntity;
+	
+}

src/main/java/com/example/demo/app/infra/entity/TransactionEntity.java

@@ -0,0 +1,45 @@
+package com.example.demo.app.infra.entity;
+
+import java.time.LocalDate;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "transaction")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class TransactionEntity {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "transaction_id")
+	private Long transactionId;
+	
+	@Column(name = "amount", nullable = false)
+	private Integer amount;
+	
+	@Column(name = "transaction_date", nullable = false)
+	private LocalDate transactionDate;
+
+	@ManyToOne(fetch = FetchType.LAZY)
+	@JoinColumn(name = "user_id")
+	private UserEntity userEntity;
+	
+	@ManyToOne(fetch = FetchType.LAZY)
+	@JoinColumn(name = "category_id")
+	private CategoryEntity categoryEntity;
+
+}

src/main/java/com/example/demo/app/infra/entity/UserEntity.java

@@ -0,0 +1,76 @@
+package com.example.demo.app.infra.entity;
+
+import java.time.LocalDate;
+import java.util.List;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.OneToOne;
+import jakarta.persistence.Table;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Entity
+@Table(name = "user")
+@Data
+@NoArgsConstructor
+@AllArgsConstructor
+public class UserEntity {
+
+	@Id
+	@GeneratedValue(strategy = GenerationType.IDENTITY)
+	@Column(name = "user_id")
+	private Integer userId;
+
+	@Column(name = "user_name", nullable = false)
+	private String userName;
+
+	@Column(name = "mail_address", nullable = false)
+	private String mailAddress;
+
+	@Column(name = "password", nullable = false)
+	private String password;
+
+	@Column(name = "secret_answer", nullable = false)
+	private String secretQuestionAnswer;
+	
+	@Column(name = "birth_date", nullable = false)
+	private LocalDate birthDate;
+	
+	@Column(name = "saving", nullable = false)
+	private Integer saving;
+	
+	@Column(name = "annual_income", nullable = false)
+	private Integer annualIncome;
+	
+	@Column(name = "monthly_budget", nullable = false)
+	private Integer monthlyBudget;
+	
+	@Column(name = "delete_flag", nullable = false)
+	private Integer deleteFlag;
+
+	@OneToMany(mappedBy = "userEntity")
+	private List<TransactionEntity> transactionEntity;
+	
+	@ManyToOne(fetch = FetchType.LAZY)
+	@JoinColumn(name = "question_id")
+	private QuestionEntity questionEntity;
+	
+	@OneToOne(fetch = FetchType.LAZY)
+	@JoinColumn(name = "goal_id")
+	private GoalEntity goalEntity;
+	
+	@ManyToOne(fetch = FetchType.LAZY)
+	@JoinColumn(name = "course_id")
+	private CourseEntity courseEntity;
+	
+}

src/main/java/com/example/demo/app/presentation/controller/SelectTransactionController.java

@@ -0,0 +1,11 @@
+package com.example.demo.app.presentation.controller;
+
+import org.springframework.stereotype.Controller;
+
+import lombok.RequiredArgsConstructor;
+
+@Controller
+@RequiredArgsConstructor
+public class SelectTransactionController {
+	
+}

src/main/java/com/example/demo/app/presentation/form/TransactionForm.java

@@ -0,0 +1,40 @@
+package com.example.demo.app.presentation.form;
+
+import java.time.LocalDate;
+import java.util.List;
+
+import com.example.demo.app.domain.model.TransactionModel;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class TransactionForm {
+
+	private Long transactionId;
+
+	private Long userId;
+
+	private Long categoryId;
+
+	private Integer amount;
+
+	private LocalDate transactionDate;
+
+	public static TransactionForm convertFrom(TransactionModel transactionModel) {
+		return new TransactionForm(
+				transactionModel.getTransactionId(),
+				transactionModel.getUserId(),
+				transactionModel.getCategoryId(),
+				transactionModel.getAmount(),
+				transactionModel.getTransactionDate());
+	}
+
+	public static List<TransactionForm> convertFrom(List<TransactionModel> transactionModelList) {
+		return transactionModelList.stream().map(TransactionForm::convertFrom).toList();
+	}
+
+}

src/main/java/com/example/demo/utility/Constant.java

@@ -0,0 +1,5 @@
+package com.example.demo.utility;
+
+public class Constant {
+
+}