[장익환] WAS 과제 7단계 - 댓글 기능 제외한 기본 기능 구현 #250

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JangIkhwan wants to merge 43 commits into softeerbootcamp-7th:JangIkhwan from JangIkhwan:feat/260116

.gitignore

Original file line number	Diff line number	Diff line change
Expand Up		@@ -197,3 +197,5 @@ gradle-app.setting
		*.hprof

		# End of https://www.toptal.com/developers/gitignore/api/gradle,intellij,java,macos

		**/uploads

src/main/java/db/ArticleRepository.java

-Original file line number
+Diff line change
@@ Expand Up / @@ -3,8 +3,20 @@ @@
     import model.Article;
     import java.util.List;
+    import java.util.Optional;
     public interface ArticleRepository {
         Article save(Article article);
         List<Article> findTopNLessThanByIdDecreasingOrder(int limit, long id);
+        Optional<Article> findById(long id);
+        void update(Article article);
+        Optional<Article> findLatest();
+        Optional<Article> findNext(Long id);
+        Optional<Article> findPrev(Long id);
     }

src/main/java/db/ArticleRepositoryImpl.java

            
                      Original file line number
                      Diff line number
                      Diff line change
                  
    @@ -7,6 +7,7 @@
  
    import java.sql.*;

    import java.util.ArrayList;

    import java.util.List;

    import java.util.Optional;

    public class ArticleRepositoryImpl implements ArticleRepository {

        private static final String JDBC_URL = "jdbc:h2:tcp://localhost/~/h2-db/was-be";

    @@ -15,14 +16,15 @@ public class ArticleRepositoryImpl implements ArticleRepository {
  
        private static final Logger logger = LoggerFactory.getLogger(ArticleRepositoryImpl.class);

        public Article save(Article article) {

            String sql = "insert into article_tbl(creatorId, title, content) values(?, ?, ?)";

            String sql = "insert into article_tbl(creatorId, title, content, image_url) values(?, ?, ?, ?)";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

                    PreparedStatement pstmt = con.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);

            ) {

                pstmt.setLong(1, article.getCreatorId());

                pstmt.setString(2, article.getTitle());

                pstmt.setString(3, article.getContent());

                pstmt.setString(4, article.getImageUrl());

                pstmt.executeUpdate();

    @@ -41,7 +43,7 @@ public Article save(Article article) {
  
        @Override

        public List<Article> findTopNLessThanByIdDecreasingOrder(int limit, long id) {

            String sql = "select id, creatorId, title, content from article_tbl where id < ? order by id desc limit ?";

            String sql = "select id, creatorId, title, content, image_url, like_count from article_tbl where id < ? order by id desc limit ?";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

    @@ -58,7 +60,9 @@ public List<Article> findTopNLessThanByIdDecreasingOrder(int limit, long id) {
  
                        long creatorId = rs.getLong("creatorId");

                        String title = rs.getString("title");

                        String content = rs.getString("content");

                        articles.add(new Article(articleId, creatorId, title, content));

                        String imageUrl = rs.getString("image_url");

                        long likeCount = rs.getLong("like_count");

                        articles.add(new Article(articleId, creatorId, title, content, imageUrl, likeCount));

                    }

                }

                return articles;

    @@ -67,4 +71,159 @@ public List<Article> findTopNLessThanByIdDecreasingOrder(int limit, long id) {
  
                throw new RuntimeException(e);

            }

        }

        @Override

        public Optional<Article> findById(long id) {

            String sql = "select id, creatorId, title, content, image_url, like_count " +

                    "from article_tbl where id = ?";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

                    PreparedStatement pstmt = con.prepareStatement(sql);

            ) {

                pstmt.setLong(1, id);

                try (ResultSet rs = pstmt.executeQuery()) {

                    if (!rs.next()) {

                        return Optional.empty();

                    }

                    Article article = new Article(

                            rs.getLong("id"),

                            rs.getLong("creatorId"),

                            rs.getString("title"),

                            rs.getString("content"),

                            rs.getString("image_url"),

                            rs.getLong("like_count")

                    );

                    return Optional.of(article);

                }

            } catch (SQLException e) {

                logger.error("Article 조회 실패 id={}", id, e);

                throw new RuntimeException(e);

            }

        }

        @Override

        public void update(Article article) {

            String sql = "update article_tbl " +

                    "set title = ?, content = ?, image_url = ?, like_count = ? " +

                    "where id = ?";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

                    PreparedStatement pstmt = con.prepareStatement(sql);

            ) {

                pstmt.setString(1, article.getTitle());

                pstmt.setString(2, article.getContent());

                pstmt.setString(3, article.getImageUrl());

                pstmt.setLong(4, article.getLikeCount());

                pstmt.setLong(5, article.getId());

                int updatedRows = pstmt.executeUpdate();

                if (updatedRows == 0) {

                    throw new SQLException("업데이트 실패 - 존재하지 않는 article id=" + article.getId());

                }

            } catch (SQLException e) {

                logger.error("Article 업데이트 실패 id={}", article.getId(), e);

                throw new RuntimeException(e);

            }

        }

        @Override

        public Optional<Article> findLatest() {

            String sql = "select id, creatorId, title, content, image_url, like_count " +

                    "from article_tbl order by id desc limit 1";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

                    PreparedStatement pstmt = con.prepareStatement(sql);

                    ResultSet rs = pstmt.executeQuery();

            ) {

                if (!rs.next()) {

                    return Optional.empty();

                }

                Article article = new Article(

                        rs.getLong("id"),

                        rs.getLong("creatorId"),

                        rs.getString("title"),

                        rs.getString("content"),

                        rs.getString("image_url"),

                        rs.getLong("like_count")

                );

                return Optional.of(article);

            } catch (SQLException e) {

                logger.error("최신 Article 조회 실패", e);

                throw new RuntimeException(e);

            }

        }

        @Override

        public Optional<Article> findNext(Long id) {

            String sql = "select id, creatorId, title, content, image_url, like_count " +

                    "from article_tbl where id > ? order by id asc limit 1";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

                    PreparedStatement pstmt = con.prepareStatement(sql);

            ) {

                pstmt.setLong(1, id);

                try (ResultSet rs = pstmt.executeQuery()) {

                    if (!rs.next()) {

                        return Optional.empty();

                    }

                    Article article = new Article(

                            rs.getLong("id"),

                            rs.getLong("creatorId"),

                            rs.getString("title"),

                            rs.getString("content"),

                            rs.getString("image_url"),

                            rs.getLong("like_count")

                    );

                    return Optional.of(article);

                }

            } catch (SQLException e) {

                logger.error("다음 Article 조회 실패 id={}", id, e);

                throw new RuntimeException(e);

            }

        }

        @Override

        public Optional<Article> findPrev(Long id) {

            String sql = "select id, creatorId, title, content, image_url, like_count " +

                    "from article_tbl where id < ? order by id desc limit 1";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

                    PreparedStatement pstmt = con.prepareStatement(sql);

            ) {

                pstmt.setLong(1, id);

                try (ResultSet rs = pstmt.executeQuery()) {

                    if (!rs.next()) {

                        return Optional.empty();

                    }

                    Article article = new Article(

                            rs.getLong("id"),

                            rs.getLong("creatorId"),

                            rs.getString("title"),

                            rs.getString("content"),

                            rs.getString("image_url"),

                            rs.getLong("like_count")

                    );

                    return Optional.of(article);

                }

            } catch (SQLException e) {

                logger.error("이전 Article 조회 실패 id={}", id, e);

                throw new RuntimeException(e);

            }

        }

    }

src/main/java/db/UserRepository.java

-Original file line number
+Diff line change
@@ Expand Up / @@ -9,4 +9,5 @@ public interface UserRepository { @@
         User save(User user);
         Optional<User> findByEmail(String email);
         Optional<User> findById(Long id);
+        User update(User user);
     }

src/main/java/db/UserRepositoryImpl.java

            
                      Original file line number
                      Diff line number
                      Diff line change
                  
    @@ -14,7 +14,7 @@ public class UserRepositoryImpl implements UserRepository {
  
        private static final Logger logger = LoggerFactory.getLogger(UserRepository.class);

        public User save(User user) {

            String sql = "insert into user_tbl(password, nickname, email) values(?, ?, ?)";

            String sql = "insert into user_tbl(password, nickname, email, image_url) values(?, ?, ?, ?)";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

    @@ -25,6 +25,7 @@ public User save(User user) {
  
                pstmt.setString(1, user.getPassword());

                pstmt.setString(2, user.getName());

                pstmt.setString(3, user.getEmail());

                pstmt.setString(4, user.getImageUrl());

                pstmt.executeUpdate();

    @@ -43,7 +44,7 @@ public User save(User user) {
  
        }

        public Optional<User> findByEmail(String email) {

            String sql = "select id, password, nickname from user_tbl where email = ?";

            String sql = "select id, password, nickname, image_url from user_tbl where email = ?";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

    @@ -61,7 +62,8 @@ public Optional<User> findByEmail(String email) {
  
                    long id = rs.getLong("id");

                    String password = rs.getString("password");

                    String nickname = rs.getString("nickname");

                    user = new User(id, password, nickname, email);

                    String imageUrl = rs.getString("image_url");

                    user = new User(id, password, nickname, email, imageUrl);

                }

                return Optional.of(user);

    @@ -73,7 +75,7 @@ public Optional<User> findByEmail(String email) {
  
        @Override

        public Optional<User> findById(Long id) {

            String sql = "select password, nickname, email from user_tbl where id = ?";

            String sql = "select password, nickname, email, image_url from user_tbl where id = ?";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

    @@ -91,7 +93,8 @@ public Optional<User> findById(Long id) {
  
                    String password = rs.getString("password");

                    String nickname = rs.getString("nickname");

                    String email = rs.getString("email");

                    user = new User(id, password, nickname, email);

                    String imageUrl = rs.getString("image_url");

                    user = new User(id, password, nickname, email, imageUrl);

                }

                return Optional.of(user);

    @@ -100,4 +103,34 @@ public Optional<User> findById(Long id) {
  
                throw new RuntimeException(e);

            }

        }

        @Override

        public User update(User user) {

            String sql = "update user_tbl set password = ?, nickname = ?, email = ?, image_url = ? where id = ?";

            try (

                    Connection con = DriverManager.getConnection(JDBC_URL, USER, PASSWORD);

                    PreparedStatement pstmt = con.prepareStatement(sql);

            ) {

                logger.debug("DB 연결 성공");

                pstmt.setString(1, user.getPassword());

                pstmt.setString(2, user.getName());

                pstmt.setString(3, user.getEmail());

                pstmt.setString(4, user.getImageUrl());

                pstmt.setLong(5, user.getId());

                int updatedRows = pstmt.executeUpdate();

                if (updatedRows == 0) {

                    throw new SQLException("업데이트 실패: 해당 id 없음");

                }

                return user;

            } catch (SQLException e) {

                logger.error("DB 업데이트 실패", e);

                throw new RuntimeException(e);

            }

        }

    }

src/main/java/model/Article.java

            
                      Original file line number
                      Diff line number
                      Diff line change
                  
    @@ -6,25 +6,31 @@ public class Article {
  
        private String writerName;

        private String title;

        private String content;

        private String imageUrl;

        private Long likeCount;

        public Article(Long id, Long creatorId, String title, String content) {

        public Article(Long id, Long creatorId, String title, String content, String imageUrl, Long likeCount) {

            this.id = id;

            this.creatorId = creatorId;

            this.title = title;

            this.content = content;

            this.imageUrl = imageUrl;

            this.likeCount = likeCount;

        }

        public Article(Long creatorId, String title, String content) {

        public Article(Long creatorId, String title, String content, String imageUrl) {

            this.creatorId = creatorId;

            this.title = title;

            this.content = content;

            this.imageUrl = imageUrl;

            this.likeCount = 0L;

        }

        public Long getId() {

            return id;

        }

        public long getCreatorId() {

        public Long getCreatorId() {

            return creatorId;

        }

    @@ -40,11 +46,23 @@ public String getContent() {
  
            return content;

        }

        public String getImageUrl() {

            return imageUrl;

        }

        public Long getLikeCount() {

            return likeCount;

        }

        public void setId(Long id) {

            this.id = id;

        }

        public void setWriterName(String creatorName) {

            this.writerName = creatorName;

        }

        public void increaseLikeCount() {

            likeCount++;

        }

    }

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