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[JDBC 라이브러리 구현하기 - 1단계] 허브(방대의) 미션 제출합니다. (#267)
* 패키지 위치 변경 및 코드 정리 * 패키지 위치 변경 및 코드 정리 * 패키지 위치 변경 및 코드 정리 * feat: 콜백을 위해 RowMapper 인터페이스 추가 * feat: JdbcTemplate으로 코드 이동 * feat: try-with-resources 적용 --------- Co-authored-by: kang-hyungu <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| name: SonarCloud | ||
| on: | ||
| push: | ||
| branches: | ||
| - main | ||
| pull_request: | ||
| types: [opened, synchronize, reopened] | ||
| jobs: | ||
| build: | ||
| name: Build and analyze | ||
| runs-on: ubuntu-latest | ||
| steps: | ||
| - uses: actions/checkout@v3 | ||
| with: | ||
| fetch-depth: 0 # Shallow clones should be disabled for a better relevancy of analysis | ||
| - name: Set up JDK 11 | ||
| uses: actions/setup-java@v3 | ||
| with: | ||
| java-version: 11 | ||
| distribution: 'corretto' # Alternative distribution options are available | ||
| - name: Cache SonarCloud packages | ||
| uses: actions/cache@v3 | ||
| with: | ||
| path: ~/.sonar/cache | ||
| key: ${{ runner.os }}-sonar | ||
| restore-keys: ${{ runner.os }}-sonar | ||
| - name: Cache Gradle packages | ||
| uses: actions/cache@v3 | ||
| with: | ||
| path: ~/.gradle/caches | ||
| key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }} | ||
| restore-keys: ${{ runner.os }}-gradle | ||
| - name: Build and analyze | ||
| env: | ||
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Needed to get PR information, if any | ||
| SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }} | ||
| run: ./gradlew clean build codeCoverageReport sonar --info -x :study:build |
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@@ -171,3 +171,5 @@ Temporary Items | |
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| tomcat.* | ||
| tomcat.*/** | ||
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| **/WEB-INF/classes/** | ||
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| @@ -1 +1,6 @@ | ||
| # JDBC 라이브러리 구현하기 | ||
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| ### 1단계 - JDBC 라이브러리 구현하기 | ||
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| - [x] RowMapper 인터페이스를 추가한다. | ||
| - [x] JdbcTemplate으로 코드 이동시킨다. |
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10 changes: 5 additions & 5 deletions
10
app/src/main/java/com/techcourse/AppWebApplicationInitializer.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,121 +1,52 @@ | ||
| package com.techcourse.dao; | ||
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| import com.techcourse.domain.User; | ||
| import nextstep.jdbc.JdbcTemplate; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import javax.sql.DataSource; | ||
| import java.sql.Connection; | ||
| import java.sql.PreparedStatement; | ||
| import java.sql.ResultSet; | ||
| import java.sql.SQLException; | ||
| import java.util.List; | ||
| import javax.sql.DataSource; | ||
| import org.springframework.jdbc.core.JdbcTemplate; | ||
| import org.springframework.jdbc.core.RowMapper; | ||
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| public class UserDao { | ||
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| private static final Logger log = LoggerFactory.getLogger(UserDao.class); | ||
| private static final RowMapper<User> USER_ROW_MAPPER = (resultSet) -> new User( | ||
| resultSet.getLong(1), | ||
| resultSet.getString(2), | ||
| resultSet.getString(3), | ||
| resultSet.getString(4) | ||
| ); | ||
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| private final DataSource dataSource; | ||
| private final JdbcTemplate jdbcTemplate; | ||
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| public UserDao(final DataSource dataSource) { | ||
| this.dataSource = dataSource; | ||
| this.jdbcTemplate = new JdbcTemplate(dataSource); | ||
| } | ||
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| public UserDao(final JdbcTemplate jdbcTemplate) { | ||
| this.dataSource = null; | ||
| this.jdbcTemplate = jdbcTemplate; | ||
| } | ||
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| public void insert(final User user) { | ||
| final var sql = "insert into users (account, password, email) values (?, ?, ?)"; | ||
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| Connection conn = null; | ||
| PreparedStatement pstmt = null; | ||
| try { | ||
| conn = dataSource.getConnection(); | ||
| pstmt = conn.prepareStatement(sql); | ||
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| log.debug("query : {}", sql); | ||
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| pstmt.setString(1, user.getAccount()); | ||
| pstmt.setString(2, user.getPassword()); | ||
| pstmt.setString(3, user.getEmail()); | ||
| pstmt.executeUpdate(); | ||
| } catch (SQLException e) { | ||
| log.error(e.getMessage(), e); | ||
| throw new RuntimeException(e); | ||
| } finally { | ||
| try { | ||
| if (pstmt != null) { | ||
| pstmt.close(); | ||
| } | ||
| } catch (SQLException ignored) {} | ||
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| try { | ||
| if (conn != null) { | ||
| conn.close(); | ||
| } | ||
| } catch (SQLException ignored) {} | ||
| } | ||
| final String sql = "insert into users (account, password, email) values (?, ?, ?)"; | ||
| jdbcTemplate.update(sql, user.getAccount(), user.getPassword(), user.getEmail()); | ||
| } | ||
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| public void update(final User user) { | ||
| // todo | ||
| final String sql = "update users set (account, password, email) = (?, ?, ?) where id = ?"; | ||
| jdbcTemplate.update(sql, user.getAccount(), user.getPassword(), user.getEmail(), user.getId()); | ||
| } | ||
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| public List<User> findAll() { | ||
| // todo | ||
| return null; | ||
| final String sql = "select id, account, password, email from users"; | ||
| return jdbcTemplate.queryForList(sql, USER_ROW_MAPPER); | ||
| } | ||
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| public User findById(final Long id) { | ||
| final var sql = "select id, account, password, email from users where id = ?"; | ||
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| Connection conn = null; | ||
| PreparedStatement pstmt = null; | ||
| ResultSet rs = null; | ||
| try { | ||
| conn = dataSource.getConnection(); | ||
| pstmt = conn.prepareStatement(sql); | ||
| pstmt.setLong(1, id); | ||
| rs = pstmt.executeQuery(); | ||
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| log.debug("query : {}", sql); | ||
|
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| if (rs.next()) { | ||
| return new User( | ||
| rs.getLong(1), | ||
| rs.getString(2), | ||
| rs.getString(3), | ||
| rs.getString(4)); | ||
| } | ||
| return null; | ||
| } catch (SQLException e) { | ||
| log.error(e.getMessage(), e); | ||
| throw new RuntimeException(e); | ||
| } finally { | ||
| try { | ||
| if (rs != null) { | ||
| rs.close(); | ||
| } | ||
| } catch (SQLException ignored) {} | ||
|
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| try { | ||
| if (pstmt != null) { | ||
| pstmt.close(); | ||
| } | ||
| } catch (SQLException ignored) {} | ||
|
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| try { | ||
| if (conn != null) { | ||
| conn.close(); | ||
| } | ||
| } catch (SQLException ignored) {} | ||
| } | ||
| final String sql = "select id, account, password, email from users where id = ?"; | ||
| return jdbcTemplate.queryForObject(sql, USER_ROW_MAPPER, id); | ||
| } | ||
|
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| public User findByAccount(final String account) { | ||
| // todo | ||
| return null; | ||
| final String sql = "select id, account, password, email from users where account = ?"; | ||
| return jdbcTemplate.queryForObject(sql, USER_ROW_MAPPER, account); | ||
| } | ||
| } |
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