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lihansani
264
_download_mysql.py
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264
_download_mysql.py
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import urllib.request
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import os
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import sys
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import zipfile
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import subprocess
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import shutil
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import configparser
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MYSQL_VERSION = "5.7.44"
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MYSQL_ZIP_NAME = f"mysql-{MYSQL_VERSION}-winx64.zip"
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MYSQL_DIR_NAME = f"mysql-{MYSQL_VERSION}-winx64"
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MYSQL_DOWNLOAD_URL = f"https://downloads.mysql.com/archives/get/p/23/file/{MYSQL_ZIP_NAME}"
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PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
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MYSQL_ZIP_PATH = os.path.join(PROJECT_ROOT, MYSQL_ZIP_NAME)
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MYSQL_HOME = os.path.join(PROJECT_ROOT, "mysql")
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MYSQL_DATA = os.path.join(MYSQL_HOME, "data")
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MYSQL_BIN = os.path.join(MYSQL_HOME, "bin")
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def download():
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print(f"下载 MySQL {MYSQL_VERSION} 到: {MYSQL_ZIP_PATH}")
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print(f"URL: {MYSQL_DOWNLOAD_URL}")
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if os.path.exists(MYSQL_ZIP_PATH):
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size = os.path.getsize(MYSQL_ZIP_PATH)
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if size > 100 * 1024 * 1024:
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print(f"文件已存在, 大小: {size / 1024 / 1024:.1f} MB, 跳过下载")
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return True
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else:
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print(f"文件已存在但大小异常 ({size / 1024 / 1024:.1f} MB), 重新下载")
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os.remove(MYSQL_ZIP_PATH)
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def progress(block_num, block_size, total_size):
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downloaded = block_num * block_size
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percent = min(downloaded / total_size * 100, 100) if total_size > 0 else 0
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mb = downloaded / 1024 / 1024
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total_mb = total_size / 1024 / 1024
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sys.stdout.write(f"\r下载进度: {percent:.1f}% ({mb:.1f}/{total_mb:.1f} MB)")
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sys.stdout.flush()
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try:
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urllib.request.urlretrieve(MYSQL_DOWNLOAD_URL, MYSQL_ZIP_PATH, progress)
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print(f"\n下载完成! 文件大小: {os.path.getsize(MYSQL_ZIP_PATH) / 1024 / 1024:.1f} MB")
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return True
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except Exception as e:
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print(f"\n下载失败: {e}")
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return False
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def extract():
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if os.path.exists(MYSQL_HOME) and os.path.exists(MYSQL_BIN):
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print(f"MySQL 目录已存在: {MYSQL_HOME}, 跳过解压")
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return True
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if not os.path.exists(MYSQL_ZIP_PATH):
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print("MySQL zip 文件不存在, 请先下载")
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return False
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print(f"正在解压 {MYSQL_ZIP_NAME} ...")
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temp_extract = os.path.join(PROJECT_ROOT, MYSQL_DIR_NAME)
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try:
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with zipfile.ZipFile(MYSQL_ZIP_PATH, 'r') as zf:
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zf.extractall(PROJECT_ROOT)
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print("解压完成")
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if os.path.exists(temp_extract):
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if os.path.exists(MYSQL_HOME):
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shutil.rmtree(MYSQL_HOME)
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os.rename(temp_extract, MYSQL_HOME)
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print(f"重命名为: {MYSQL_HOME}")
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return True
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except Exception as e:
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print(f"解压失败: {e}")
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return False
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def _read_mysql_port_from_config():
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config_path = os.path.join(PROJECT_ROOT, "config.ini")
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if os.path.exists(config_path):
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cfg = configparser.ConfigParser()
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cfg.read(config_path, encoding='utf-8')
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return cfg.getint('mysql', 'port', fallback=33366)
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return 33366
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def init_mysql():
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if os.path.exists(MYSQL_DATA):
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print(f"MySQL 数据目录已存在: {MYSQL_DATA}, 跳过初始化")
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return True
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mysqld = os.path.join(MYSQL_BIN, "mysqld.exe")
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if not os.path.exists(mysqld):
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print(f"mysqld.exe 不存在: {mysqld}")
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return False
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print("正在初始化 MySQL 数据目录...")
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try:
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result = subprocess.run(
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[mysqld, "--initialize-insecure", "--basedir=" + MYSQL_HOME, "--datadir=" + MYSQL_DATA],
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capture_output=True, text=True, timeout=120
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)
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if result.returncode != 0:
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print(f"初始化输出: {result.stderr}")
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else:
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print("MySQL 数据目录初始化完成")
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return True
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except Exception as e:
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print(f"MySQL 初始化失败: {e}")
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return False
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def write_my_ini():
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my_ini_path = os.path.join(MYSQL_HOME, "my.ini")
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port = _read_mysql_port_from_config()
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ini_content = f"""[mysqld]
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basedir={MYSQL_HOME}
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datadir={MYSQL_DATA}
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port={port}
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max_connections=200
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max_allowed_packet=64M
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character-set-server=utf8mb4
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collation-server=utf8mb4_general_ci
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default-storage-engine=InnoDB
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sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
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[client]
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port={port}
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default-character-set=utf8mb4
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[mysql]
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default-character-set=utf8mb4
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"""
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with open(my_ini_path, 'w', encoding='utf-8') as f:
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f.write(ini_content)
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print(f"my.ini 已写入: {my_ini_path} (port={port})")
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return True
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def start_mysql_temp():
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mysqld = os.path.join(MYSQL_BIN, "mysqld.exe")
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if not os.path.exists(mysqld):
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print(f"mysqld.exe 不存在: {mysqld}")
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return False
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print("临时启动 MySQL 以创建用户和数据库...")
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try:
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proc = subprocess.Popen(
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[mysqld, "--standalone", "--console"],
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stdout=subprocess.PIPE, stderr=subprocess.PIPE
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)
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import time
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time.sleep(5)
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if proc.poll() is not None:
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print("MySQL 启动失败")
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return False
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print("MySQL 已临时启动, 正在配置用户和数据库...")
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_setup_users_and_db()
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print("正在停止临时 MySQL...")
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proc.terminate()
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proc.wait(timeout=10)
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print("临时 MySQL 已停止")
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return True
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except Exception as e:
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print(f"临时启动 MySQL 失败: {e}")
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return False
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def _setup_users_and_db():
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mysql_exe = os.path.join(MYSQL_BIN, "mysql.exe")
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port = _read_mysql_port_from_config()
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config_path = os.path.join(PROJECT_ROOT, "config.ini")
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cfg = configparser.ConfigParser()
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cfg.read(config_path, encoding='utf-8')
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db_user = cfg.get('mysql', 'user', fallback='admin')
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db_password = cfg.get('mysql', 'password', fallback='admin')
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db_name = cfg.get('mysql', 'database', fallback='word_sign')
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sql_commands = f"""
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CREATE DATABASE IF NOT EXISTS `{db_name}` CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;
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CREATE USER IF NOT EXISTS '{db_user}'@'127.0.0.1' IDENTIFIED BY '{db_password}';
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CREATE USER IF NOT EXISTS '{db_user}'@'localhost' IDENTIFIED BY '{db_password}';
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CREATE USER IF NOT EXISTS '{db_user}'@'%%' IDENTIFIED BY '{db_password}';
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GRANT ALL PRIVILEGES ON `{db_name}`.* TO '{db_user}'@'127.0.0.1';
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GRANT ALL PRIVILEGES ON `{db_name}`.* TO '{db_user}'@'localhost';
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GRANT ALL PRIVILEGES ON `{db_name}`.* TO '{db_user}'@'%%';
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GRANT ALL PRIVILEGES ON *.* TO '{db_user}'@'127.0.0.1' WITH GRANT OPTION;
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GRANT ALL PRIVILEGES ON *.* TO '{db_user}'@'localhost' WITH GRANT OPTION;
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GRANT ALL PRIVILEGES ON *.* TO '{db_user}'@'%%' WITH GRANT OPTION;
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FLUSH PRIVILEGES;
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"""
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sql_file = os.path.join(PROJECT_ROOT, "_temp_init.sql")
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with open(sql_file, 'w', encoding='utf-8') as f:
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f.write(sql_commands)
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try:
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result = subprocess.run(
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[mysql_exe, "-u", "root", "--skip-password", f"--port={port}", "-e", f"source {sql_file}"],
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capture_output=True, text=True, timeout=30
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)
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if result.returncode == 0:
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print(f"用户 '{db_user}' 和数据库 '{db_name}' 创建成功")
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else:
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print(f"创建用户/数据库输出: {result.stderr}")
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print("尝试使用 mysql 命令行...")
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result2 = subprocess.run(
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[mysql_exe, "-u", "root", f"--port={port}", f"--execute={sql_commands.strip()}"],
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capture_output=True, text=True, timeout=30
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)
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if result2.returncode == 0:
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print(f"用户 '{db_user}' 和数据库 '{db_name}' 创建成功 (方式2)")
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else:
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print(f"创建用户/数据库失败: {result2.stderr}")
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except Exception as e:
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print(f"创建用户/数据库异常: {e}")
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finally:
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if os.path.exists(sql_file):
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os.remove(sql_file)
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def main():
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print("=" * 60)
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print(f" MySQL {MYSQL_VERSION} 绿色版 - 下载与初始化")
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print("=" * 60)
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print()
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if not download():
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print("下载失败, 终止")
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return
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if not extract():
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print("解压失败, 终止")
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return
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if not init_mysql():
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print("初始化数据目录失败, 终止")
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return
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write_my_ini()
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if not start_mysql_temp():
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print("MySQL 临时启动配置失败, 但基本安装已完成")
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print("首次启动 start.bat 时会自动完成剩余配置")
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print()
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print("=" * 60)
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print(" MySQL 安装完成!")
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print(f" 目录: {MYSQL_HOME}")
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print(f" 数据: {MYSQL_DATA}")
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print(" 使用 start.bat 启动服务")
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print("=" * 60)
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if __name__ == '__main__':
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main()
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