100 lines
3.9 KiB
Plaintext
100 lines
3.9 KiB
Plaintext
CREATE TABLE chat_mysql.users (
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username VARCHAR(50) PRIMARY KEY,
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password VARCHAR(255) NOT NULL
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);
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SET SQL_SAFE_UPDATES = 0;
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DELETE FROM chat_mysql.users;
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SET SQL_SAFE_UPDATES = 1;
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INSERT INTO chat_mysql.users (username, password)
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VALUES
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('admin', '123'),
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('query', '123'),
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('tom', '123'),
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('jack', '123'),
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('lucy', '123');
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select * from chat_mysql.users;
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CREATE TABLE chat_mysql.contacts (
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user_name VARCHAR(50) NOT NULL,
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contact_name VARCHAR(50) NOT NULL,
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PRIMARY KEY (user_name, contact_name),
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FOREIGN KEY (user_name)
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REFERENCES chat_mysql.users(username),
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FOREIGN KEY (contact_name)
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REFERENCES chat_mysql.users(username)
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);
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INSERT INTO chat_mysql.contacts (user_name, contact_name)
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VALUES
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('admin', 'query'),
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('admin', 'tom'),
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('admin', 'jack'),
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('admin', 'lucy'),
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('query', 'admin'),
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('query', 'tom'),
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('tom', 'admin'),
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('tom', 'query');
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select * from chat_mysql.contacts;
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CREATE TABLE chat_mysql.messages (
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id INT PRIMARY KEY AUTO_INCREMENT,
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sender_name VARCHAR(50) NOT NULL,
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receiver_name VARCHAR(50) NOT NULL,
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content VARCHAR(1000) NOT NULL,
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created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
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FOREIGN KEY (sender_name)
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REFERENCES chat_mysql.users(username),
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FOREIGN KEY (receiver_name)
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REFERENCES chat_mysql.users(username)
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);
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INSERT INTO chat_mysql.messages
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(sender_name, receiver_name, content, created_at)
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VALUES
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-- admin ↔ query
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('admin', 'query', '你好，最近怎么样？', '2026-09-20 10:00:00'),
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('query', 'admin', '挺好的，你呢？', '2026-09-20 10:01:00'),
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('admin', 'query', '我也不错，最近在做聊天项目。', '2026-09-20 10:02:00'),
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('query', 'admin', '听起来不错，是用 Vue 做的吗？', '2026-09-20 10:03:00'),
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('admin', 'query', '对，前端使用 Vue2，后端使用 Node.js。', '2026-09-20 10:04:00'),
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('query', 'admin', '那数据库使用 MySQL？', '2026-09-20 10:05:00'),
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('admin', 'query', '对，目前正在完善聊天功能。', '2026-09-20 10:06:00'),
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-- admin ↔ tom
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('admin', 'tom', '你今天有空吗？', '2026-09-20 11:00:00'),
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('tom', 'admin', '有啊，怎么了？', '2026-09-20 11:01:00'),
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('admin', 'tom', '想和你讨论一下项目。', '2026-09-20 11:02:00'),
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('tom', 'admin', '可以，什么时间方便？', '2026-09-20 11:03:00'),
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('admin', 'tom', '下午三点怎么样？', '2026-09-20 11:04:00'),
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('tom', 'admin', '没问题。', '2026-09-20 11:05:00'),
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-- admin ↔ jack
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('jack', 'admin', '周末一起吃饭吗？', '2026-09-20 12:00:00'),
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('admin', 'jack', '可以啊，去哪吃？', '2026-09-20 12:01:00'),
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('jack', 'admin', '附近找一家餐厅吧。', '2026-09-20 12:02:00'),
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('admin', 'jack', '好的，晚上六点怎么样？', '2026-09-20 12:03:00'),
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('jack', 'admin', '可以，到时候联系。', '2026-09-20 12:04:00'),
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-- admin ↔ lucy
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('admin', 'lucy', '最近项目进展怎么样？', '2026-09-20 13:00:00'),
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('lucy', 'admin', '目前进展还不错。', '2026-09-20 13:01:00'),
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('admin', 'lucy', '还有哪些功能没有完成？', '2026-09-20 13:02:00'),
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('lucy', 'admin', '主要是消息通知和联系人功能。', '2026-09-20 13:03:00'),
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('admin', 'lucy', '好的，我这边也在做消息功能。', '2026-09-20 13:04:00'),
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-- query ↔ tom
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('query', 'tom', '你知道聊天项目怎么做 WebSocket 吗？', '2026-09-20 14:00:00'),
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('tom', 'query', '知道一些，可以用来做实时消息。', '2026-09-20 14:01:00'),
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('query', 'tom', '我也准备把项目改成 WebSocket。', '2026-09-20 14:02:00'),
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('tom', 'query', '这样聊天消息可以实时推送。', '2026-09-20 14:03:00'),
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-- tom ↔ query
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('tom', 'query', '联系人比较多的时候怎么办？', '2026-09-20 15:00:00'),
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('query', 'tom', '不需要每个联系人都创建一个 WebSocket。', '2026-09-20 15:01:00'),
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('tom', 'query', '一个用户维护一个 WebSocket 连接就可以了。', '2026-09-20 15:02:00');
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select * from chat_mysql.messages;
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