Android URL -路径不完整

String baseUrl = "https://example.com";
String endpoint = "/api/data";
String url = baseUrl + endpoint;

Uri.Builder builder = new Uri.Builder();
builder.scheme("https")
       .authority("example.com")
       .appendPath("api")
       .appendPath("data");
String url = builder.build().toString();

<uses-permission android:name="android.permission.INTERNET" />

URL url = new URL("https://example.com/api/data");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
// 处理响应...

implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'

public interface ApiService {
    @GET("api/data")
    Call<ResponseBody> getData();
}

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

ApiService apiService = retrofit.create(ApiService.class);
Call<ResponseBody> call = apiService.getData();
call.enqueue(new Callback<ResponseBody>() {
    @Override
    public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
        if (response.isSuccessful()) {
            // 处理成功响应...
        } else {
            // 处理错误响应...
        }
    }

    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        // 处理失败情况...
    }
});

Log.d("URL_DEBUG", "Constructed URL: " + url);