src/main/java/de/towerdefence/server/player/Player.java

@@ -0,0 +1,33 @@
+package de.towerdefence.server.player;
+
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.Setter;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.AllArgsConstructor;
+import jakarta.persistence.*;
+
+@NoArgsConstructor
+@AllArgsConstructor
+@Getter
+@Setter
+@Entity
+@Table(name = "player")
+public class Player {
+
+    @Id
+    private Long id;
+
+    @NotNull
+    @Column(unique = true)
+    private String username;
+
+    @NotNull
+    @Size(min = 64, max = 64)
+    private byte[] passwordHash;
+
+    @NotNull
+    @Size(min = 16, max = 16)
+    private byte[] passwordSalt;
+}

src/main/java/de/towerdefence/server/player/PlayerRepository.java

@@ -0,0 +1,7 @@
+package de.towerdefence.server.player;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public  interface PlayerRepository extends JpaRepository<Player, Long> {
+    Player findByUsername(String username);
+}