archieve: homework7 UserDao

2025-05-26 16:17:32 +08:00
parent f65b48b374
commit fb4ff04aac
7 changed files with 100 additions and 72 deletions
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DataSourceManagerImpl" format="xml" multifile-model="true">
+    <data-source source="LOCAL" name="@msksbr.com" uuid="061f36fe-96cf-4556-9bb1-8f54bb7e626a">
+      <driver-ref>mysql.8</driver-ref>
+      <synchronize>true</synchronize>
+      <jdbc-driver>com.mysql.cj.jdbc.Driver</jdbc-driver>
+      <jdbc-url>jdbc:mysql://msksbr.com:3306</jdbc-url>
+      <jdbc-additional-properties>
+        <property name="com.intellij.clouds.kubernetes.db.host.port" />
+        <property name="com.intellij.clouds.kubernetes.db.enabled" value="false" />
+        <property name="com.intellij.clouds.kubernetes.db.resource.type" value="Deployment" />
+        <property name="com.intellij.clouds.kubernetes.db.container.port" />
+      </jdbc-additional-properties>
+      <working-dir>$ProjectFileDir$</working-dir>
+    </data-source>
+  </component>
+</project>
@@ -0,0 +1,7 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="project">
+    <words>
+      <w>msksbr</w>
+    </words>
+  </dictionary>
+</component>
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="SqlDialectMappings">
+    <file url="file://$PROJECT_DIR$/sql/User.sql" dialect="MySQL" />
+    <file url="PROJECT" dialect="MySQL" />
+  </component>
+</project>
@@ -0,0 +1,14 @@
+USE `msksbr.homework7`;
+CREATE TABLE User
+(
+    id       INT PRIMARY KEY,
+    username VARCHAR(255) NOT NULL,
+    password VARCHAR(255) NOT NULL,
+    email    VARCHAR(255),
+    birthday DATE
+);
+
+INSERT INTO User (id, username, password, email, birthday)
+VALUES (1000, "msksbr", "password", "gugugulaocuchen@gmail.com", "2005-05-05"),
+       (1001, "xor3301", "password", "zzmark437@gmail.com", "2005-01-01"),
+       (1002, "anzai", "password", "b.an@sleepbed.top", "2003-01-01");
@@ -0,0 +1,53 @@
+/*
+ * @name: UsersDao.java
+ * @author: msksbr
+ * @date: 2025-05-26
+ * @version: 1.0
+ * @description: UsersDao class for homework 7
+ */
+package com.msksbr.homework7.dao;
+
+import com.msksbr.homework7.domain.User;
+import com.msksbr.homework7.util.JDBCUtils;
+
+import java.sql.ResultSet;
+
+public class UsersDao {
+    private final JDBCUtils jdbcUtils = new JDBCUtils();
+    private User user = new User();
+
+    public void addUser(User user) {
+        this.user = user;
+        String sql = "INSERT INTO users (username, password, email, birthday) VALUES ('" + user.getUsername() + "', '" + user.getPassword() + "', '" + user.getEmail() + "', '" + user.getBirthday() + "')";
+        jdbcUtils.runQuery(sql);
+    }
+
+    public void deleteUser(int id) {
+        String sql = "DELETE FROM users WHERE id = " + id;
+        jdbcUtils.runQuery(sql);
+    }
+
+    public void updateUser(User user) {
+        this.user = user;
+        String sql = "UPDATE users SET username = '" + user.getUsername() + "', password = '" + user.getPassword() + "', email = '" + user.getEmail() + "', birthday = '" + user.getBirthday() + "' WHERE id = " + user.getId();
+        jdbcUtils.runQuery(sql);
+    }
+
+    public User findUserById(int id) {
+        String sql = "SELECT * FROM users WHERE id = " + id;
+        ResultSet rs = jdbcUtils.runQuery(sql);
+        try {
+            if (rs.next()) {
+                user.setId(rs.getInt("id"));
+                user.setUsername(rs.getString("username"));
+                user.setPassword(rs.getString("password"));
+                user.setEmail(rs.getString("email"));
+                user.setBirthday(rs.getDate("birthday"));
+            }
+            return user;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+}
@@ -2,7 +2,7 @@
 * @name: JDBCUtils.java
 * @author: msksbr
 * @date: 2025-05-26
- * @version: 1.0
+ * @version: 1.0f: fix yaml file load issue
 * @description: JDBCUtils class for homework 7
 */
 package com.msksbr.homework7.util;