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@RestController

public class LoginController {

@PostMapping("/login")

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public ResponseEntity login(@RequestParam String username, @RequestParam String password) {

if (isValidUser(username, password)) {

return ResponseEntity.ok("Login Successful");

} else {

return ResponseEntity.status(HttpStatus.UNAUTHORIZED).body("Invalid Credentials");

}

}

private boolean isValidUser(String username, String password) {

// 假设用户信息存储在一个简单映射中

Map users = new HashMap<>();

users.put("admin", "password123");

return users.containsKey(username) && users.get(username).equals(password);

}

}

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