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    • Instagram 클론 -2) status, post, comment모델 만들기
      Spring 2021. 6. 12. 00:20

       

      user에 이어 이제 status모델을 만들자. 

       

       

      먼저 status entity를 만든다. 

      entity에 Status자바 클래스를 만들어준다. 

       

      자동생성되는 id를 만들어주고 나서, 필요한 요소들을 만들고 

      기본 생성자와 요소 생성자, getter, setter도 만들어준다. 

      package com.yunhalee.Instagram_App.Entity;

import java.sql.Timestamp;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity(name = "Status")
public class Status {
	
	@Id
	@GeneratedValue
	private int id;
	
	private String statusId;
	private String userId;
	private String path;
	private Timestamp timestamp;
	
	public Status() {
		super();
		// TODO Auto-generated constructor stub
	}

	public Status(int id, String statusId, String userId, String path, Timestamp timestamp) {
		super();
		this.id = id;
		this.statusId = statusId;
		this.userId = userId;
		this.path = path;
		this.timestamp = timestamp;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getStatusId() {
		return statusId;
	}

	public void setStatusId(String statusId) {
		this.statusId = statusId;
	}

	public String getUserId() {
		return userId;
	}

	public void setUserId(String userId) {
		this.userId = userId;
	}

	public String getPath() {
		return path;
	}

	public void setPath(String path) {
		this.path = path;
	}

	public Timestamp getTimestamp() {
		return timestamp;
	}

	public void setTimestamp(Timestamp timestamp) {
		this.timestamp = timestamp;
	}
	
	
	
	
	
}

       

       

      이제 controller도 만들어주자. 

      StatusController자바 클래스를 만든다. 

      package com.yunhalee.Instagram_App.Controller;

import java.util.ArrayList;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.yunhalee.Instagram_App.Entity.Status;

@RestController
@RequestMapping("/status")
public class StatusController {
	
	@PostMapping("")
	private Status submitStatus(@RequestBody Status status) {
		return new Status();
	}
	
	@GetMapping("")
	private ArrayList<Status> getAllStatus(){
		return new ArrayList<Status>();
	}

}

       

       

       

      이제 서비스도 만들어주자. 

      StatusService.java

       

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Status;

@Service
public class StatusService {
	
	public Status submitDataIntoDB(Status status) {
		return new Status();
	}
	
	public ArrayList<Status> retrieveStatus(){
		return new ArrayList<Status>();
	}
}

       

       

      controller에 서비스를 추가해주자. 

      import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.yunhalee.Instagram_App.Entity.Status;
import com.yunhalee.Instagram_App.Service.StatusService;

@RestController
@RequestMapping("/status")
public class StatusController {
	
	@Autowired
	StatusService statusService;
	
	@PostMapping("")
	private Status submitStatus(@RequestBody Status status) {
		return statusService.submitDataIntoDB(status);
	}
	
	@GetMapping("")
	private ArrayList<Status> getAllStatus(){
		return statusService.retrieveStatus();
	}

}

       

      repository만들어주자. 

      package com.yunhalee.Instagram_App.Repository;

import java.util.ArrayList;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import com.yunhalee.Instagram_App.Entity.Status;

@Repository
public interface StatusRepository extends CrudRepository<Status, Integer>{
	
	Status save(Status status);
	
	ArrayList<Status> findAll(); 

}

       

       

      service에 repository를 추가해주자. 

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Status;
import com.yunhalee.Instagram_App.Repository.StatusRepository;

@Service
public class StatusService {
	
	@Autowired
	StatusRepository statusRepository;
	
	public Status submitDataIntoDB(Status status) {
		return statusRepository.save(status);
	}
	
	public ArrayList<Status> retrieveStatus(){
		return statusRepository.findAll();
	}
}

       

       

      postman을 가지고 제대로 작동하는지 확인하자. 

       

      정상작동한다. 

       

       

      여기서 status는 유저네임이 없는데,

      userId를 이용해서 status리스트를 가져올때, user엔티티에서 이름 정보를 가져오도록 하자. 

       

      status 엔티티에 userName항목을 추가해주자. 

      getter와 setter만 설정해주고 생성자는만들지 않는다. 

      package com.yunhalee.Instagram_App.Entity;

import java.sql.Timestamp;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity(name = "Status")
public class Status {
	
	@Id
	@GeneratedValue
	private int id;
	
	private String statusId;
	private String userId;
	private String path;
	private String userName;
	private Timestamp timestamp;
	
	public Status() {
		super();
		// TODO Auto-generated constructor stub
	}

	public Status(int id, String statusId, String userId, String path, Timestamp timestamp) {
		super();
		this.id = id;
		this.statusId = statusId;
		this.userId = userId;
		this.path = path;
		this.userName = userName;
		this.timestamp = timestamp;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getStatusId() {
		return statusId;
	}

	public void setStatusId(String statusId) {
		this.statusId = statusId;
	}

	public String getUserId() {
		return userId;
	}

	public void setUserId(String userId) {
		this.userId = userId;
	}

	public String getPath() {
		return path;
	}

	public void setPath(String path) {
		this.path = path;
	}

	public Timestamp getTimestamp() {
		return timestamp;
	}

	public void setTimestamp(Timestamp timestamp) {
		this.timestamp = timestamp;
	}
	
	public String getUserName() {
		return userName;
	}

	public void setUserName(String userName) {
		this.userName = userName;
	}
	
	
	
	
}

       

       

      그다음 status service에서 userservice를 이용해서 유저네임 정보를 가져와서 

      리스트를 반환할때 같이반환해주도록 설정하자. 

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Status;
import com.yunhalee.Instagram_App.Repository.StatusRepository;

@Service
public class StatusService {
	
	@Autowired
	UserService userService;
	
	@Autowired
	StatusRepository statusRepository;
	
	public Status submitDataIntoDB(Status status) {
		return statusRepository.save(status);
	}
	
	public ArrayList<Status> retrieveStatus(){
		
	ArrayList<Status> statusList = statusRepository.findAll();
	
	for(int i=0; i<statusList.size(); i++) {
		Status statusItem = statusList.get(i);
		statusItem.setUserName(userService.displayUserMetaData(statusItem.getUserId()).getUserName());
		
	}
	return statusList;
	}
}

       

      이제 post 모델을 만들자. 

      package com.yunhalee.Instagram_App.Entity;

import java.sql.Timestamp;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity(name="Post")
public class Post {
	
	@Id
	@GeneratedValue
	private int id;
	
	private String postId;
	private String userId;
	private String postPath;
	private Timestamp tiemStamp;
	private int likeCount;
	public Post() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Post(int id, String postId, String userId, String postPath, Timestamp tiemStamp, int likeCount) {
		super();
		this.id = id;
		this.postId = postId;
		this.userId = userId;
		this.postPath = postPath;
		this.tiemStamp = tiemStamp;
		this.likeCount = likeCount;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getPostId() {
		return postId;
	}
	public void setPostId(String postId) {
		this.postId = postId;
	}
	public String getUserId() {
		return userId;
	}
	public void setUserId(String userId) {
		this.userId = userId;
	}
	public String getPostPath() {
		return postPath;
	}
	public void setPostPath(String postPath) {
		this.postPath = postPath;
	}
	public Timestamp getTiemStamp() {
		return tiemStamp;
	}
	public void setTiemStamp(Timestamp tiemStamp) {
		this.tiemStamp = tiemStamp;
	}
	public int getLikeCount() {
		return likeCount;
	}
	public void setLikeCount(int likeCount) {
		this.likeCount = likeCount;
	}
	
	
	
}

       

      controller

      PostController

      package com.yunhalee.Instagram_App.Controller;
import java.util.ArrayList;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.yunhalee.Instagram_App.Entity.Post;

@RestController
@RequestMapping("/post")
public class PostController {
	
	@PostMapping("")
	private Post submitUserPost(@RequestBody Post post){
		return new Post(post);
	}
	
	@GetMapping("")
	private ArrayList<Post> getAllPost(){
		return new ArrayList<Post>();
	}
}

       

       

      service 도 만들어주자. 

       

      PostService.java

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Post;

@Service
public class PostService {
	
	public Post submitPostToDatabase(Post post) {
		return new Post();
	}
	
	public ArrayList<Post> retrivePostFromDB(){
		return new ArrayList<Post>();
	}

}

       

      controller에 추가해주자. 

      package com.yunhalee.Instagram_App.Controller;
import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.yunhalee.Instagram_App.Entity.Post;
import com.yunhalee.Instagram_App.Service.PostService;

@RestController
@RequestMapping("/post")
public class PostController {
	
	@Autowired
	PostService postService;
	
	@PostMapping("")
	private Post submitUserPost(@RequestBody Post post){
		return postService.submitPostToDatabase(post);
	}
	
	@GetMapping("")
	private ArrayList<Post> getAllPost(){
		return postService.retrivePostFromDB();
	}
}

       

       

      PostRepository.java

      package com.yunhalee.Instagram_App.Repository;

import java.util.ArrayList;

import org.springframework.data.repository.CrudRepository;

import com.yunhalee.Instagram_App.Entity.Post;

public interface PostRepository extends CrudRepository<Post, Integer> {
	
	Post save(Post post);
	ArrayList<Post> findAll();
	
}

       

      Service에 추가해주자. 

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Post;
import com.yunhalee.Instagram_App.Repository.PostRepository;

@Service
public class PostService {
	
	@Autowired
	PostRepository postRepository;
	
	public Post submitPostToDatabase(Post post) {
		return postRepository.save(post);
	}
	
	public ArrayList<Post> retrivePostFromDB(){
		return postRepository.findAll();
	}

}

       

      이제 userId 를 이용해서 

      user정보를 가져와보자. 

       

       

      post엔티티에 userName을 추가해주자. 

      (생성자는 말고, getter, setter까지만)

      package com.yunhalee.Instagram_App.Entity;

import java.sql.Timestamp;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity(name="Post")
public class Post {
	
	@Id
	@GeneratedValue
	private int id;
	
	private String postId;
	private String userId;
	private String userName;
	private String postPath;
	private Timestamp timeStamp;
	private int likeCount;
	public Post() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Post(int id, String postId, String userId, String postPath, Timestamp timeStamp, int likeCount) {
		super();
		this.id = id;
		this.postId = postId;
		this.userId = userId;
		this.postPath = postPath;
		this.timeStamp = timeStamp;
		this.likeCount = likeCount;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getPostId() {
		return postId;
	}
	public void setPostId(String postId) {
		this.postId = postId;
	}
	public String getUserId() {
		return userId;
	}
	public void setUserId(String userId) {
		this.userId = userId;
	}
	public String getPostPath() {
		return postPath;
	}
	public void setPostPath(String postPath) {
		this.postPath = postPath;
	}
	public Timestamp getTimeStamp() {
		return timeStamp;
	}
	public void setTimeStamp(Timestamp timeStamp) {
		this.timeStamp = timeStamp;
	}
	public int getLikeCount() {
		return likeCount;
	}
	public void setLikeCount(int likeCount) {
		this.likeCount = likeCount;
	}
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	
	
	
}

      servec에서 사용자 이름도 사용하도록 바꿔주자. 

       

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Post;
import com.yunhalee.Instagram_App.Repository.PostRepository;

@Service
public class PostService {
	
	@Autowired
	UserService userService;
	
	@Autowired
	PostRepository postRepository;
	
	public Post submitPostToDatabase(Post post) {
		return postRepository.save(post);
	}
	
	public ArrayList<Post> retrivePostFromDB(){
		
		ArrayList<Post> postList = postRepository.findAll();
		
		for(int i=0;i<postList.size();i++) {
			Post postItem=postList.get(i);
			postItem.setUserName(userService.displayUserMetaData(postItem.getUserId()).getUserName());
		}
		return postRepository.findAll();
	}

}

       

       

      comments도 만들어주자. 

      엔티티

      package com.yunhalee.Instagram_App.Entity;

import java.sql.Timestamp;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity(name="Comments")
public class Comments {
	
	@Id
	@GeneratedValue
	private int id;
	
	private String commentId;
	private String userId;
	private String postId;
	private Timestamp timeStamp;
	private String comment;
	public Comments() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Comments(int id, String commentId, String userId, String postId, Timestamp timeStamp, String comment) {
		super();
		this.id = id;
		this.commentId = commentId;
		this.userId = userId;
		this.postId = postId;
		this.timeStamp = timeStamp;
		this.comment = comment;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getCommentId() {
		return commentId;
	}
	public void setCommentId(String commentId) {
		this.commentId = commentId;
	}
	public String getUserId() {
		return userId;
	}
	public void setUserId(String userId) {
		this.userId = userId;
	}
	public String getPostId() {
		return postId;
	}
	public void setPostId(String postId) {
		this.postId = postId;
	}
	public Timestamp getTimeStamp() {
		return timeStamp;
	}
	public void setTimeStamp(Timestamp timeStamp) {
		this.timeStamp = timeStamp;
	}
	public String getComment() {
		return comment;
	}
	public void setComment(String comment) {
		this.comment = comment;
	}
	
	
}

       

       

      controller

      package com.yunhalee.Instagram_App.Controller;

import java.util.ArrayList;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.yunhalee.Instagram_App.Entity.Comments;

@RestController
@RequestMapping("/comments")
public class CommentsController {
	
	@PostMapping("")
	private Comments submitComment(@RequestBody Comments comment) {
		return new Comments();
	}
	
	@GetMapping("{postId}")
	private ArrayList<Comments> getCommentsForPost(@PathVariable("postId") String postId){
		return new ArrayList<Comments>();
	}
}

       

      service

       

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Comments;

@Service
public class CommentsService {

	public Comments submitCommentToDB(Comments comment) {
		
	}
	
	public ArrayList<Comments> getAllCommentsForDB(String postId){
		
	}
}

       

       

      controller에 추가

      import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.yunhalee.Instagram_App.Entity.Comments;
import com.yunhalee.Instagram_App.Service.CommentsService;

@RestController
@RequestMapping("/comments")
public class CommentsController {
	
	@Autowired
	CommentsService commentsService;
	
	@PostMapping("")
	private Comments submitComment(@RequestBody Comments comment) {
		return commentsService.submitCommentToDB(comment);
	}
	
	@GetMapping("{postId}")
	private ArrayList<Comments> getCommentsForPost(@PathVariable("postId") String postId){
		return commentsService.getAllCommentsForDB(postId);
	}
}

       

      repository

      package com.yunhalee.Instagram_App.Repository;

import java.util.ArrayList;

import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

import com.yunhalee.Instagram_App.Entity.Comments;

@Repository
public interface CommentsRepository extends CrudRepository<Comments, Integer>{
	
	Comments save(Comments comment);
	ArrayList<Comments> findAllByPostId(String postId);
}

       

       

      service에 추가

      package com.yunhalee.Instagram_App.Service;

import java.util.ArrayList;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.yunhalee.Instagram_App.Entity.Comments;
import com.yunhalee.Instagram_App.Entity.Post;
import com.yunhalee.Instagram_App.Repository.CommentsRepository;

@Service
public class CommentsService {
	
	@Autowired
	UserService userService;
	
	@Autowired
	CommentsRepository commentsRepository;

	public Comments submitCommentToDB(Comments comment) {
		return commentsRepository.save(comment);
	}
	
	public ArrayList<Comments> getAllCommentsForDB(String postId){
		ArrayList<Comments> commentsList = commentsRepository.findAllByPostId(postId);
		
		for(int i=0;i<commentsList.size();i++) {
			Comments commentItem=commentsList.get(i);
			commentItem.setUserName(userService.displayUserMetaData(commentItem.getUserId()).getUserName());
		}
		return commentsList;
	}
}

       

       

      comment엔티티에 username 추가해준다. 

      (getter setter도 )

      package com.yunhalee.Instagram_App.Entity;

import java.sql.Timestamp;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;

@Entity(name="Comments")
public class Comments {
	
	@Id
	@GeneratedValue
	private int id;
	
	private String commentId;
	private String userId;
	private String userName;
	private String postId;
	private Timestamp timeStamp;
	private String comment;
	public Comments() {
		super();
		// TODO Auto-generated constructor stub
	}
	public Comments(int id, String commentId, String userId, String postId, Timestamp timeStamp, String comment) {
		super();
		this.id = id;
		this.commentId = commentId;
		this.userId = userId;
		this.postId = postId;
		this.timeStamp = timeStamp;
		this.comment = comment;
	}
	public int getId() {
		return id;
	}
	public void setId(int id) {
		this.id = id;
	}
	public String getCommentId() {
		return commentId;
	}
	public void setCommentId(String commentId) {
		this.commentId = commentId;
	}
	public String getUserId() {
		return userId;
	}
	public void setUserId(String userId) {
		this.userId = userId;
	}
	public String getPostId() {
		return postId;
	}
	public void setPostId(String postId) {
		this.postId = postId;
	}
	public Timestamp getTimeStamp() {
		return timeStamp;
	}
	public void setTimeStamp(Timestamp timeStamp) {
		this.timeStamp = timeStamp;
	}
	public String getComment() {
		return comment;
	}
	public void setComment(String comment) {
		this.comment = comment;
	}
	public String getUserName() {
		return userName;
	}
	public void setUserName(String userName) {
		this.userName = userName;
	}
	
	
}

       

       

       

       

       

       

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