4 lab попытка сделать добавление постов (неудачно)

src/main/java/ru/ulstu/is/sbapp/Comment/controller/CommentDto.java

@@ -9,6 +9,7 @@ public class CommentDto {
     private String Text;
     private Post post;
     private User user;
+    public CommentDto(){}
     public CommentDto(Comment comment)
     {
         this.Text=comment.getText();

src/main/java/ru/ulstu/is/sbapp/Post/controller/PostController.java

@@ -1,5 +1,6 @@
 package ru.ulstu.is.sbapp.Post.controller;
 
+import jakarta.validation.Valid;
 import org.springframework.web.bind.annotation.*;
 import ru.ulstu.is.sbapp.Post.service.PostService;
 import ru.ulstu.is.sbapp.User.controller.UserDto;
@@ -25,9 +26,8 @@ public class PostController {
                 .toList();
     }
     @PostMapping
-    public PostDto createPost(@RequestParam("Heading") String Heading,
-                              @RequestParam("Content") String Content){
-        return new PostDto(postService.addPost(Heading, Content));
+    public PostDto createPost(@RequestBody @Valid PostDto postDto){
+        return new PostDto(postService.addPost(postDto));
     }
 
     @PutMapping("/{id}")

src/main/java/ru/ulstu/is/sbapp/Post/controller/PostDto.java

@@ -21,6 +21,7 @@ public class PostDto {
 
     private List<Comment> comments = new ArrayList<>();
 
+    public PostDto(){}
     public PostDto(Post post)
     {
         this.Heading = post.getHeading();

src/main/java/ru/ulstu/is/sbapp/Post/model/Post.java

@@ -33,11 +33,6 @@ public class Post {
     private List<Comment> comments=new ArrayList<>();
 
     public Post(){}
-    public Post(String Heading, String Content)
-    {
-        this.Heading = Heading;
-        this.Content = Content;
-    }
     public Post(String Heading, String Content,byte[] image)
     {
         this.Heading = Heading;

src/main/java/ru/ulstu/is/sbapp/Post/service/PostService.java

@@ -6,6 +6,7 @@ import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.StringUtils;
 import ru.ulstu.is.sbapp.Comment.model.Comment;
 import ru.ulstu.is.sbapp.Comment.repository.CommentRepository;
+import ru.ulstu.is.sbapp.Post.controller.PostDto;
 import ru.ulstu.is.sbapp.Post.model.Post;
 import ru.ulstu.is.sbapp.Post.repository.PostRepository;
 import ru.ulstu.is.sbapp.User.model.User;
@@ -27,8 +28,8 @@ public class PostService {
         this.validatorUtil=validatorUtil;
     }
     @Transactional
-    public Post addPost(String Heading, String Content) {
-        final Post post = new Post(Heading,Content);
+    public Post addPost(PostDto postDto) {
+        final Post post = new Post(postDto);
         validatorUtil.validate(post);
         return postRepository.save(post);
     }

src/main/java/ru/ulstu/is/sbapp/User/controller/UserDto.java

@@ -20,6 +20,7 @@ public class UserDto {
 
     private List<Comment> comments = new ArrayList<>();
 
+    public UserDto(){}
     public UserDto(User user) {
         this.id=user.getId();
         this.firstName = user.getFirstName();