消息推送系统

@Controller

public class MessageController {

@Autowired

private MessageService messageService;

@GetMapping("/messages")

public List getAllMessages() {

return messageService.getAll();

}

@PostMapping("/send")

public ResponseEntity sendMessage(@RequestBody MessageRequest request) {

messageService.sendMessage(request);

return ResponseEntity.ok("Message sent successfully");

}

}

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CREATE TABLE User (

id INT PRIMARY KEY AUTO_INCREMENT,

username VARCHAR(50) NOT NULL,

email VARCHAR(100)

);

CREATE TABLE Message (

id INT PRIMARY KEY AUTO_INCREMENT,

title VARCHAR(200),

content TEXT,

created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP

);

]]>