解析失败：Landroid / arch / core / executor / AppToolkitTaskExecutor
作者：互联网
我目前正在尝试使用Retrofit2设置Room.我想将数据从Retrofit2插入到Room数据库中,但插入对我来说不起作用,应用程序崩溃了.我使用Room Library实现了三个组件：实体,Dao和数据库.
我有结果这个错误.
E / AndroidRuntime：致命异常：主要
处理：com.example.a694532.e_controlling,PID：31841
java.lang.NoClassDefFoundError：解析失败：Landroid / arch / core / executor / AppToolkitTaskExecutor;
在android.arch.persistence.room.InvalidationTracker.refreshVersionsAsync(InvalidationTracker.java:403)
在android.arch.persistence.room.RoomDatabase.endTransaction(RoomDatabase.java:219)
在com.example.a694532.e_controlling.data.db.dao.GareDao_Impl.insertGares(GareDao_Impl.java:116)
at com.example.a694532.e_controlling.service.repository.TotoRepository $1.onResponse(TotoRepository.java:106)
at retrofit2.ExecutorCallAdapterFactory $ExecutorCallbackCall $1 $1.run(ExecutorCallAdapterFactory.java:70)
在android.os.Handler.handleCallback(Handler.java:739)
在android.os.Handler.dispatchMessage(Handler.java:95)
在android.os.Looper.loop(Looper.java:158)
在android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
在com.android.internal.os.ZygoteInit $MethodAndArgsCaller.run(ZygoteInit.java:1230)
在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
引起：java.lang.ClassNotFoundException：路径上没有找到类“android.arch.core.executor.AppToolkitTaskExecutor”：DexPathList [[zip file“/data/app/com.example.a694532.e_controlling-2/base .apk“,zip文件”/data/app/com.example.a694532.e_controlling-2/split_lib_dependencies_apk.apk“,zip文件”/data/app/com.example.a694532.e_controlling-2/split_lib_slice_0_apk.apk“, zip文件“/data/app/com.example.a694532.e_controlling-2/split_lib_slice_1_apk.apk”,zip文件“/data/app/com.example.a694532.e_controlling-2/split_lib_slice_2_apk.apk”,zip文件“/ data / app / com.example.a694532.e_controlling-2 / split_lib_slice_3_apk.apk“,zip file”/data/app/com.example.a694532.e_controlling-2/split_lib_slice_4_apk.apk“,zip file”/ data / app / com.example.a694532.e_controlling-2 / split_lib_slice_5_apk.apk“,zip文件”/data/app/com.example.a694532.e_controlling-2/split_lib_slice_6_apk.apk“,zip文件”/data/app/com.example. a694532.e_controlling-2 / split_lib_slice_7_apk.apk“,zip file”/data/app/com.example.a69 4532.e_controlling-2 / split_lib_slice_8_apk.apk“,zip文件”/data/app/com.example.a694532.e_controlling-2/split_lib_slice_9_apk.apk\”],nativeLibraryDirectories=[/data/app/com.example.a694532.e_controlling -2 / lib / arm,/ vendor / lib,/ system / lib]]
在dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
在android.arch.persistence.room.InvalidationTracker.refreshVersionsAsync(InvalidationTracker.java:403)
在android.arch.persistence.room.RoomDatabase.endTransaction(RoomDatabase.java:219)
在com.example.a694532.e_controlling.data.db.dao.GareDao_Impl.insertGares(GareDao_Impl.java:116)
at com.example.a694532.e_controlling.service.repository.TotoRepository $1.onResponse(TotoRepository.java:106)
at retrofit2.ExecutorCallAdapterFactory $ExecutorCallbackCall $1 $1.run(ExecutorCallAdapterFactory.java:70)
在android.os.Handler.handleCallback(Handler.java:739)
在android.os.Handler.dispatchMessage(Handler.java:95)
在android.os.Looper.loop(Looper.java:158)
在android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
在com.android.internal.os.ZygoteInit $MethodAndArgsCaller.run(ZygoteInit.java:1230)
在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
抑制：java.lang.ClassNotFoundException：android.arch.core.executor.AppToolkitTaskExecutor
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
……还有13个
引起：java.lang.NoClassDefFoundError：使用引导类加载器找不到类;没有堆栈跟踪可用
Repository.class
@Singleton
public class TotoRepository {
//Converters
private GareDtoConverter mGareConverter = new GareDtoConverter();
private TrainDuJourDtoConverter mTrainDuJourConverter = new TrainDuJourDtoConverter();
private TotoService totoService;
private Executor executor;
private GareDao gareDao;
private TrainDao trainDao;
private TronconDao tronconDao;
GareEtTrainDuJour mGareEtTrain=new GareEtTrainDuJour();
MyDatabase database;
OkHttpClient okHttpClient = UnsafeOkHttpClient.getUnsafeOkHttpClient();
public TotoRepository (Application application) {
Gson gson = new GsonBuilder()
.setDateFormat("yyyy-MM-dd'T'HH:mm:ss")
.create();
Retrofit.Builder builder = new Retrofit.Builder()
.baseUrl(EndPoint.TICKET)
.client(okHttpClient)
.addConverterFactory(GsonConverterFactory.create(gson));
Retrofit retrofit = builder.build();
totoService = retrofit.create(TotoService.class);
database = MyDatabase.getInstance(application);
gareDao=database.garesDao();
trainDao=database.trainDao();
tronconDao=database.tronconDao();
}
/*
@Inject
public TotoRepository(TotoService totoService, GareDao gareDao,TrainDao trainDao,TronconDao tronconDao, Executor executor) {
this.totoService=totoService;
this.gareDao=gareDao;
this.trainDao=trainDao;
this.tronconDao=tronconDao;
this.executor = executor;
}*/
public GareEtTrainDuJour getGareEtTrainDuJour() {
refreshGareEtTrainDuJour();
// return a LiveData directly from the database.
Log.d("loadFromDb","Recuperation des gares et trains du jours depuis la BD");
mGareEtTrain.setGareList(gareDao.getGares());
mGareEtTrain.setTrainList(trainDao.getTrains());
mGareEtTrain.setTronconList(tronconDao.getTroncons());
return mGareEtTrain;
}
public void refreshGareEtTrainDuJour(){
totoService.garesEtTrainsDuJour().enqueue(new Callback<GaresEtTrainsDuJourDTO>() {
@Override
public void onResponse(Call<GaresEtTrainsDuJourDTO> call, Response<GaresEtTrainsDuJourDTO> response) {
gareDao.insertGares(mGareConverter.toModelList(response.body().getGares()));
Map<String, Gare> listNameGare = mGareConverter.myListMapper(mGareConverter.toModelList(response.body().getGares()));
trainDao.insertOrReplaceTrains(mTrainDuJourConverter.toTrainModelList(response.body().getTrains(),listNameGare));
Log.d("RBRBRBRBRB",mTrainDuJourConverter.toTrainModelList(response.body().getTrains(),listNameGare).toString());
}
@Override
public void onFailure(Call<GaresEtTrainsDuJourDTO> call, Throwable t) {
Log.d("RBRBRBRBRBFFFF",t.getCause().toString());
Log.d("RBRBRBRBRBFFFF",t.toString());
t.printStackTrace();
}
});
}
}
ViewModel.class
public class TotoViewModel extends AndroidViewModel {
private GareEtTrainDuJour mGareEtTrain;
private TotoRepository totoRepo;
@Inject
public TotoViewModel(Application application) {
super(application);
totoRepo=new TotoRepository(application);
}
public void init() {
mGareEtTrain=totoRepo.getGareEtTrainDuJour();
}
public GareEtTrainDuJour getGaresTrain() {
return this.mGareEtTrain;
}
}
解决方法:
我只是将gradle依赖项设置为最新版本并且可以正常工作.
的build.gradle(项目级)
dependencies {
classpath 'com.android.tools.build:gradle:3.3.1'
classpath 'com.google.gms:google-services:4.2.0'
}
的build.gradle(应用级)
dependencies {
implementation 'com.google.firebase:firebase-core:16.0.7'
implementation 'com.google.firebase:firebase-messaging:17.4.0'
implementation 'com.google.android.gms:play-services-location:16.0.0'
}
标签：android-room,android,retrofit2,android-livedata,livecycle 来源： https://codeday.me/bug/20190910/1799731.html