android读取mysql数据库

@RestController
public class UserController {

    @Autowired
    private UserRepository userRepository;

    @GetMapping("/users")
    public List<User> getUsers() {
        return userRepository.findAll();
    }
}

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    private UserAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        recyclerView = findViewById(R.id.recyclerView);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        adapter = new UserAdapter();
        recyclerView.setAdapter(adapter);

        fetchUsers();
    }

    private void fetchUsers() {
        String url = "https://yourserver.com/users";
        RequestQueue queue = Volley.newRequestQueue(this);
        JsonArrayRequest request = new JsonArrayRequest(Request.Method.GET, url, null,
            response -> {
                List<User> users = new ArrayList<>();
                for (int i = 0; i < response.length(); i++) {
                    try {
                        JSONObject jsonObject = response.getJSONObject(i);
                        User user = new User(jsonObject.getString("name"), jsonObject.getString("email"));
                        users.add(user);
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                }
                adapter.setUsers(users);
            },
            error -> {
                Log.e("Volley Error", error.toString());
            }
        );
        queue.add(request);
    }
}