diff --git a/build.gradle b/build.gradle
index b2fc2de..92d7ad9 100644
--- a/build.gradle
+++ b/build.gradle
@@ -21,7 +21,8 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
 	implementation 'org.springframework.boot:spring-boot-starter-web'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
-	runtimeOnly 'com.h2database:h2'
+//	runtimeOnly 'com.h2database:h2'
+	runtimeOnly 'com.mysql:mysql-connector-j'
 	testImplementation 'org.springframework.boot:spring-boot-starter-test'
 	testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
 }
diff --git a/src/main/java/BE_Basic_Security_Web_Assignment/BE_Basic_Security_Web_Assignment/controller/RestAPIController.java b/src/main/java/BE_Basic_Security_Web_Assignment/BE_Basic_Security_Web_Assignment/controller/RestAPIController.java
new file mode 100644
index 0000000..f871517
--- /dev/null
+++ b/src/main/java/BE_Basic_Security_Web_Assignment/BE_Basic_Security_Web_Assignment/controller/RestAPIController.java
@@ -0,0 +1,56 @@
+package BE_Basic_Security_Web_Assignment.BE_Basic_Security_Web_Assignment.controller;
+
+import BE_Basic_Security_Web_Assignment.BE_Basic_Security_Web_Assignment.entity.Post;
+import BE_Basic_Security_Web_Assignment.BE_Basic_Security_Web_Assignment.service.PostService;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api")
+public class RestAPIController {
+    private final PostService postService;
+
+    public RestAPIController(PostService postService) {
+        this.postService = postService;
+    }
+
+    @GetMapping("/posts")
+    public ResponseEntity<List<Post>> getAllPosts() {
+        return ResponseEntity.ok(postService.findAll());
+    }
+
+    @GetMapping("/posts/{id}")
+    public ResponseEntity<Post> getPost(@PathVariable Long id) {
+        Post post = postService.findById(id);
+        return post != null ? ResponseEntity.ok(post) : ResponseEntity.notFound().build();
+    }
+
+    @PostMapping("/posts")
+    public ResponseEntity<Post> createPost(@RequestBody Post post) {
+        Post savedPost = postService.save(post);
+        return ResponseEntity.ok(savedPost);
+    }
+
+    @PutMapping("/posts/{id}")
+    public ResponseEntity<Post> updatePost(@PathVariable Long id, @RequestBody Post updatedPost) {
+        Post existingPost = postService.findById(id);
+        if (existingPost == null) {
+            return ResponseEntity.notFound().build();
+        }
+        updatedPost.setId(id);
+        Post savedPost = postService.save(updatedPost);
+        return ResponseEntity.ok(savedPost);
+    }
+
+    @DeleteMapping("/posts/{id}")
+    public ResponseEntity<Void> deletePost(@PathVariable Long id) {
+        if (postService.findById(id) == null) {
+            return ResponseEntity.notFound().build();
+        }
+        postService.deleteById(id);
+        return ResponseEntity.noContent().build();
+    }
+
+}
diff --git a/src/main/java/BE_Basic_Security_Web_Assignment/BE_Basic_Security_Web_Assignment/service/PostService.java b/src/main/java/BE_Basic_Security_Web_Assignment/BE_Basic_Security_Web_Assignment/service/PostService.java
index 98d5f33..e0f8d6a 100644
--- a/src/main/java/BE_Basic_Security_Web_Assignment/BE_Basic_Security_Web_Assignment/service/PostService.java
+++ b/src/main/java/BE_Basic_Security_Web_Assignment/BE_Basic_Security_Web_Assignment/service/PostService.java
@@ -28,5 +28,6 @@ public Post findById(Long id) {
 
     public void deleteById(Long id) {
         Post post = postRepository.findById(id).orElse(null);
+        postRepository.delete(post);
     }
 }
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index b869de0..88d8bef 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1,12 +1,14 @@
 spring.application.name=BE_Basic_Security_Web_Assignment
 
-spring.datasource.url=jdbc:h2:tcp://localhost/~/test
-spring.datasource.driver-class-name=org.h2.Driver
-spring.datasource.username=sa
-spring.datasource.password=
+spring.datasource.url=jdbc:mysql://localhost:3306/testdb?useSSL=false&serverTimezone=Asia/Seoul
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.datasource.username=root
+spring.datasource.password=mysql:data!235711
 
 spring.jpa.hibernate.ddl-auto=update
-spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.format_sql=true
+spring.jpa.database-platform=org.hibernate.dialect.MySQL8Dialect
 
-spring.h2.console.enabled=true
-spring.h2.console.path=/h2-console
+#spring.h2.console.enabled=true
+#spring.h2.console.path=/h2-console
diff --git a/src/main/resources/templates/detail.html b/src/main/resources/templates/detail.html
index e77e4bd..c90689a 100644
--- a/src/main/resources/templates/detail.html
+++ b/src/main/resources/templates/detail.html
@@ -7,7 +7,7 @@
 <body>
 <h1 th:text="${post.title}">제목</h1>
 <p th:text="${post.content}">내용</p>
-<a href="/static">🔙 목록으로</a>
+<a href="/">🔙 목록으로</a>
 <a th:href="@{/post/edit/{id}(id=${post.id})}">✏️ 수정</a>
 <a th:href="@{/post/delete/{id}(id=${post.id})}">🗑️ 삭제</a>
 </body>