Add: DB 설계 및 구현

src/main/java/be/gyu/urlShortener/entity/UrlMap.java

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+package be.gyu.urlShortener.entity;
+
+import java.time.LocalDateTime;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class UrlMap {
+    @Id
+    @GeneratedValue(strategy=GenerationType.IDENTITY)
+    private int urlMapId;
+    private String urlMapOriginal;
+    private String urlMapShort;
+    private boolean urlMapIsActive;
+    @ManyToOne
+    @JoinColumn(name="user_id")
+    private Users user;
+    private int urlMapClick;
+    private LocalDateTime urlMapCreatedAt;
+    private LocalDateTime urlMapEditedAt;
+    private LocalDateTime urlMapExpiredAt;
+}

src/main/java/be/gyu/urlShortener/entity/Users.java

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+package be.gyu.urlShortener.entity;
+
+import java.time.LocalDateTime;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.Getter;
+
+@Entity
+@Getter
+public class Users {
+    @Id
+    @GeneratedValue(strategy=GenerationType.IDENTITY)
+    private int userId;
+    private String userEmail;
+    private String userPassword;
+    private String userNickname;
+    private LocalDateTime userCreatedAt;
+}