Firestore getProductID 不能为空错误

Question

我正在尝试在我的 android 应用程序中使用 Firebase 发布的新 Firestore。不幸的是，我在尝试写入数据库时不断收到此错误。

public class MainActivity extends AppCompatActivity {

EditText txtName,txtSurname;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Toolbar toolbar =  findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    txtName = findViewById(R.id.Name);
    txtSurname = findViewById(R.id.Surname);

    FloatingActionButton fab = findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            FirebaseFirestore db = FirebaseFirestore.getInstance();

            Map<String, Object> user = new HashMap<>();
            user.put("first", "Ada");
            user.put("last", "Lovelace");
            user.put("born", 1815);

            db.collection("users")
                    .add(user)
                    .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                        @Override
                        public void onSuccess(DocumentReference documentReference) {
                            //Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
                        }
                    })
                    .addOnFailureListener(new OnFailureListener() {
                        @Override
                        public void onFailure(@NonNull Exception e) {
                            //Log.w(TAG, "Error adding document", e);
                        }
                    });

        }
    });
}

这是我不断遇到的错误。我已经通过助手将该项目添加到我的 android 应用程序中。所以应该没有问题。

Process: damn.testapp, PID: 2622
java.lang.IllegalArgumentException: FirebaseOptions.getProjectId() cannot be null at com.google.firebase.firestore.FirebaseFirestore.zze(Unknown Source) at com.google.firebase.firestore.FirebaseFirestore.getInstance(Unknown Source) at damn.testapp.MainActivity.onClick(MainActivity.java:44) at android.view.View.performClick(View.java:5637) at android.view.View$PerformClick.run(View.java:22429) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6119) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

如有任何帮助，我们将不胜感激。

这是我的数据库安全规则

service cloud.firestore {
  match /databases/{database}/documents {
match /{document=**} {
  allow read, write;
    }
  }
}

这是我正在使用的依赖项：

    compile 'com.google.firebase:firebase-firestore:11.4.2'

Answer 1

这是导致问题的原因。

FirebaseFirestore db = FirebaseFirestore.getInstance();

而是像这样使用它：

private DocumentReference documentReference = FirebaseFirestore.getInstance().document("sampleData/myData");

然后像这样保存数据；

    Map<String, Object> user = new HashMap<>();
    user.put("first", "Ada");
    user.put("last", "Lovelace");
    user.put("born", 1815);
    documentReference
            .set(user).addOnSuccessListener(new OnSuccessListener<Void>() {
        @Override
        public void onSuccess(Void aVoid) {
            Log.d("MainActivity", "DocumentSnapshot added with ID: " + documentReference.getId());
        }
    });

Answer 2

如果您有一个 google-services.json 文件，但它在 project_info 部分中没有 project_id 键，则会发生此故障。

如果您将 Firestore 添加到具有旧 google-services.json 文件的现有应用程序，则可能会发生这种情况。项目 ID 是此文件中一个相对较新的字段，添加是为了支持 Firestore。

登录 Firebase 控制台，在其中找到您的应用程序，重新下载 google-services.json 文件，将其替换到您的项目中，然后您就可以开始了。

Answer 3

我遇到了同样的问题。在 gradle 中解决了这个问题： 3.0.0 到 3.1.0

buildscript {
    dependencies {
        classpath 'com.google.gms:google-services:3.1.0'
    }
}

Answer 4

sokarcreative 答案对我不起作用。我这样做了：

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'
        classpath 'com.google.gms:google-services:3.1.1'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com" // Google's Maven repository
        }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

Answer 5

这是发送包含 "null" 值的密钥的问题。尝试用空字符串“”替换键值。

Answer 6

我有

buildscript {
    dependencies {
        classpath 'com.google.gms:google-services:4.2.0'
    }
}

解决方案在 FirebaseOptions .setProjectId(prjID)

的构造函数中

    String projectID = "project-id-com";
    FirebaseOptions options = new FirebaseOptions.Builder()
            .setApplicationId("1:26000034:android:6d45000000534")
            .setApiKey("AIzaSyAbsrv0000000000eml95vFOs")
            .setDatabaseUrl("https://" + projectID + ".firebaseio.com")
            .setProjectId(projectID)
            .build();

    FirebaseApp.initializeApp(context, options, projectID);
    FirebaseApp app = FirebaseApp.getInstance(projectID);
    FirebaseFirestore db = FirebaseFirestore.getInstance(app);

    Map<String, Object> city = new HashMap<>();
    city.put("name", "Los Angeles");
    city.put("state", "CA");
    city.put("country", "USA");

    db.collection("documents")
            .document("example")
            .set(city)
            .addOnSuccessListener(documentReference ->
                        Log.d(TAG, "DocumentSnapshot added with ID: " ))
            .addOnCompleteListener(ab ->
                        Log.d(TAG, "complete: "))
            .addOnFailureListener(e ->
                        Log.d(TAG, "Error adding document", e));

Firestore getProductID 不能为空错误

Firestore getProductID cannot be null error

java

android

firebase

google-cloud-firestore