android获取服务端数据库

// 示例代码：使用Retrofit进行网络请求
public interface ApiService {
    @GET("user/{id}")
    Call<User> getUser(@Path("id") int userId);
}

Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("https://yourserver.com/api/")
    .addConverterFactory(GsonConverterFactory.create())
    .build();

ApiService apiService = retrofit.create(ApiService.class);
Call<User> call = apiService.getUser(1);
call.enqueue(new Callback<User>() {
    @Override
    public void onResponse(Call<User> call, Response<User> response) {
        if (response.isSuccessful()) {
            User user = response.body();
            // 处理用户数据
        } else {
            // 处理请求失败
        }
    }

    @Override
    public void onFailure(Call<User> call, Throwable t) {
        // 处理网络请求失败
    }
});

// 示例代码：处理JSON解析错误
try {
    JSONObject jsonObject = new JSONObject(responseString);
    User user = new Gson().fromJson(jsonObject.toString(), User.class);
} catch (JSONException e) {
    e.printStackTrace();
    // 处理JSON解析错误
}