From 7619252eab7f51acb4261306ba1b4295ea0376a5 Mon Sep 17 00:00:00 2001
From: kevstevie <jianna442@gmail.com>
Date: Tue, 26 Sep 2023 14:57:36 +0900
Subject: [PATCH] =?UTF-8?q?feat:=20dao=20=EA=B5=AC=ED=98=84?=
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---
 .../main/java/com/techcourse/dao/UserDao.java | 105 +++++++++++++++++-
 1 file changed, 100 insertions(+), 5 deletions(-)

diff --git a/app/src/main/java/com/techcourse/dao/UserDao.java b/app/src/main/java/com/techcourse/dao/UserDao.java
index d14c545f34..252b68fb7a 100644
--- a/app/src/main/java/com/techcourse/dao/UserDao.java
+++ b/app/src/main/java/com/techcourse/dao/UserDao.java
@@ -1,6 +1,7 @@
 package com.techcourse.dao;
 
 import com.techcourse.domain.User;
+import java.util.ArrayList;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -60,12 +61,65 @@ public void insert(final User user) {
     }
 
     public void update(final User user) {
-        // todo
+        final var sql = "update users set account = ?, email = ?, password = ? where id = ?";
+
+        Connection conn = null;
+        PreparedStatement pstmt = null;
+        try {
+            conn = dataSource.getConnection();
+            pstmt = conn.prepareStatement(sql);
+
+            log.debug("query : {}", sql);
+
+            pstmt.setString(1, user.getAccount());
+            pstmt.setString(2, user.getEmail());
+            pstmt.setString(3, user.getPassword());
+            pstmt.setLong(4, user.getId());
+            pstmt.executeUpdate();
+        } catch (SQLException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e);
+        } finally {
+            try {
+                if (pstmt != null) {
+                    pstmt.close();
+                }
+            } catch (SQLException ignored) {}
+
+            try {
+                if (conn != null) {
+                    conn.close();
+                }
+            } catch (SQLException ignored) {}
+        }
+
     }
 
     public List<User> findAll() {
-        // todo
-        return null;
+        final String sql = "select * from users";
+        List<User> users = new ArrayList<>();
+        Connection conn;
+        PreparedStatement pstmt;
+        ResultSet rs;
+        try {
+            conn = dataSource.getConnection();
+            pstmt = conn.prepareStatement(sql);
+            rs = pstmt.executeQuery();
+
+            log.debug("query : {}", sql);
+
+            while (rs.next()) {
+                users.add(new User(
+                        rs.getLong(1),
+                        rs.getString(2),
+                        rs.getString(3),
+                        rs.getString(4)));
+            }
+            return users;
+        } catch (SQLException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e);
+        }
     }
 
     public User findById(final Long id) {
@@ -115,7 +169,48 @@ public User findById(final Long id) {
     }
 
     public User findByAccount(final String account) {
-        // todo
-        return null;
+        final var sql = "select id, account, password, email from users where account = ?";
+
+        Connection conn = null;
+        PreparedStatement pstmt = null;
+        ResultSet rs = null;
+        try {
+            conn = dataSource.getConnection();
+            pstmt = conn.prepareStatement(sql);
+            pstmt.setString(1, account);
+            rs = pstmt.executeQuery();
+
+            log.debug("query : {}", sql);
+
+            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) {}
+
+            try {
+                if (pstmt != null) {
+                    pstmt.close();
+                }
+            } catch (SQLException ignored) {}
+
+            try {
+                if (conn != null) {
+                    conn.close();
+                }
+            } catch (SQLException ignored) {}
+        }
     }
 }