找到 CRUD Sqlite android 实现
find CRUD Sqlite android implementation
我尝试实现一个 android 应用程序来接收短信并将其保存在本地数据库中，这里我们将使用 Sqlite，
在我的主 activity 中，我尝试保留一条短信，然后，我尝试从我的数据库中读取它，但我不能，从未执行过 find() 行（那是什么说我的日志），这是我主要的一些代码 activity :
CSmsReceiverDAO cSmsReceiverDAO = new CSmsReceiverDAO(this);
CSmsReceived SmsReceived1 = new CSmsReceived.SmsReceivedBuilder()
.Data("coords XY").DateReceiving("janvier").Phone("+33565456").Processed("zz").build();
cSmsReceiverDAO.open();
try {
Log.i("test","try ok");
cSmsReceiverDAO.persist(SmsReceived1);
Log.i("test", "persist ok");
CSmsReceived smsFromBdd = cSmsReceiverDAO.find(SmsReceived1.getDateReceiving());
Log.i("test", "find ok");
if (smsFromBdd !=null){
Toast.makeText(this, smsFromBdd.toString(), Toast.LENGTH_LONG).show();
}
else {
Toast.makeText(this, "persist fail...", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
e.printStackTrace();
}
我的日志说：
02-19 07:19:23.087 2837-2837/? I/test: try ok
02-19 07:19:23.087 2837-2837/? I/test: persist ok
但我没有线路 "find ok"。
这是我如何构建我的短信（我使用构建器模式）：
public class CSmsReceived implements Serializable{
private final String dateReceiving; // optional
private final String processed; // optional
private final String phone; // optional
private final String data; // optional
private CSmsReceived(SmsReceivedBuilder builder) {
this.dateReceiving = builder.dateReceiving;
this.processed = builder.processed;
this.phone = builder.phone;
this.data = builder.data;
}
public String getDateReceiving() {
return dateReceiving;
}
public String getProcessed() {
return processed;
}
public String getPhone() {
return phone;
}
public String getData() {
return data;
}
public String toString(){
return "dateReceiving : " + dateReceiving + " processed : " + processed +"\n"
+ " phone : " + phone + " data : " + data;
}
public static class SmsReceivedBuilder {
private String dateReceiving;
private String processed;
private String phone;
private String data;
public SmsReceivedBuilder Data(String data) {
this.data = data;
return this;
}
public SmsReceivedBuilder DateReceiving(String dateReceiving) {
this.dateReceiving = dateReceiving;
return this;
}
public SmsReceivedBuilder Phone(String phone) {
this.phone = phone;
return this;
}
public SmsReceivedBuilder Processed(String processed) {
this.processed = processed;
return this;
}
public CSmsReceived build() {
return new CSmsReceived(this);
}
}
}
这是我创建的数据库：（连接并创建 tables）
编辑：尝试创建 TABLE 如果不存在 – @Prithviraj Shiroor 但它没有任何改变
public class CMaBaseSQLite extends SQLiteOpenHelper {
private static final String COL_ID = "ID";
private static final String TABLE_SMS_SENT = "table_sms_sent";
private static final String COL_DateSending = "dateSending";
private static final String TABLE_SMS_RECEIVED = "table_sms_received";
private static final String COL_DateReceiving = "dateReceiving";
private static final String COL_PROCESSED ="processed";
private static final String COL_PHONE ="phone";
private static final String COL_DATA ="data";
private static final String CREATE_BDD_SMS_RECEIVED = "CREATE TABLE IF NOT EXISTS " + TABLE_SMS_RECEIVED + " ("
+ COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COL_DateReceiving + " TEXT, "
+ COL_PROCESSED + " TEXT, " + COL_PHONE + " TEXT, " + COL_DATA + " TEXT);";
private static final String CREATE_BDD_SMS_SENT = "CREATE TABLE IF NOT EXISTS" + TABLE_SMS_SENT + " ("
+ COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COL_DateSending + " TEXT, "
+ COL_PHONE + " TEXT, " + COL_DATA + " TEXT NOT NULL);";
public CMaBaseSQLite(Context context, String name, CursorFactory factory, int version) {
super(context, name, factory, version);
}
@Override
public void onCreate(SQLiteDatabase db) {
//on créé la table à partir de la requête écrite dans la variable CREATE_BDD sent et received
db.execSQL(CREATE_BDD_SMS_RECEIVED);
db.execSQL(CREATE_BDD_SMS_SENT);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
//On peut fait ce qu'on veut ici moi j'ai décidé de supprimer la table et de la recréer
//comme ça lorsque je change la version les id repartent de 0
db.execSQL("DROP TABLE " + TABLE_SMS_SENT + ";");
db.execSQL("DROP TABLE IF EXISTS " + TABLE_SMS_RECEIVED + ";");
onCreate(db);
}
}
最后是我的 smsDAO :
编辑：已调试持久化方法
values.put(t.getDateReceiving(), NUM_COL_DateReceiving);
values.put(t.getProcessed(), NUM_COL_PROCESSED);
values.put(t.getPhone(), NUM_COL_PHONE);
values.put(t.getData(), NUM_COL_DATA);
=>
values.put(COL_DateReceiving,t.getDateReceiving());
values.put(COL_PROCESSED, t.getProcessed());
values.put(COL_PHONE, t.getPhone());
values.put(COL_DATA, t.getData());
现在我的代码：
public class CSmsReceiverDAO implements IDAO<CSmsReceived> {
private SQLiteDatabase bdd;
private CMaBaseSQLite cMaBaseSQLite;
private static final String NOM_BDD = "sms.db";
private static final int VERSION_BDD = 1;
private static final String COL_ID = "ID";
private static final int NUM_COL_ID = 0;
private static final String TABLE_SMS_SENT = "table_sms_sent";
private static final String COL_DateSending = "dateSending";
private static final String TABLE_SMS_RECEIVED = "table_sms_received";
private static final String COL_DateReceiving = "dateReceiving";
private static final int NUM_COL_DateReceiving = 1;
private static final String COL_PROCESSED ="processed";
private static final int NUM_COL_PROCESSED = 2;
private static final String COL_PHONE ="phone";
private static final int NUM_COL_PHONE= 3;
private static final String COL_DATA ="data";
private static final int NUM_COL_DATA= 4;
public CSmsReceiverDAO(Context context){
//On créer la BDD et sa table
cMaBaseSQLite = new CMaBaseSQLite(context, NOM_BDD, null, VERSION_BDD);
}
public void open(){
//on ouvre la BDD en écriture
bdd = cMaBaseSQLite.getWritableDatabase();
}
public void close(){
//on ferme l accès à la BDD
bdd.close();
}
public SQLiteDatabase getBDD(){
return bdd;
}
@Override
public CSmsReceived find(String date) throws Exception {
//Récupère dans un Cursor les valeur correspondant à un livre contenu dans la BDD (ici on sélectionne le livre grâce à son titre)
Cursor c = bdd.query(TABLE_SMS_RECEIVED, new String[] {COL_ID, COL_DateReceiving, COL_PROCESSED, COL_PHONE, COL_DATA}, COL_DateReceiving + " LIKE \"" + date +"\"", null, null, null, null);
return cursorToSms(c);
}
@Override
public List<CSmsReceived> findAll() throws Exception {
return null;
}
@Override
public void persist(CSmsReceived t) throws Exception {
//Création d un ContentValues (fonctionne comme une HashMap)
ContentValues values = new ContentValues();
//on lui ajoute une valeur associé à une clé (qui est le nom de la colonne dans laquelle on veut mettre la valeur)
values.put(COL_DateReceiving,t.getDateReceiving());
values.put(COL_PROCESSED, t.getProcessed());
values.put(COL_PHONE, t.getPhone());
values.put(COL_DATA, t.getData());
//on insère l objet dans la BDD via le ContentValues
bdd.insert(TABLE_SMS_RECEIVED, null, values);
}
@Override
public void remove(CSmsReceived t) throws Exception {
}
@Override
public void update(CSmsReceived s, CSmsReceived t) throws Exception {
}
@Override
public void refresh(CSmsReceived t) throws Exception {
}
//Cette méthode permet de convertir un cursor en un sms
private CSmsReceived cursorToSms(Cursor c){
//si aucun élément n a été retourné dans la requête, on renvoie null
if (c.getCount() == 0)
return null;
//Sinon on se place sur le premier élément
c.moveToFirst();
//On créé un sms
//on lui affecte toutes les infos grâce aux infos contenues dans le Cursor
CSmsReceived cSmsReceived = new CSmsReceived.SmsReceivedBuilder()
.DateReceiving(c.getString(NUM_COL_DateReceiving))
.Processed(c.getString(NUM_COL_PROCESSED)).Phone(c.getString(NUM_COL_PHONE))
.Data(c.getString(NUM_COL_DATA)).build();
//On ferme le cursor
c.close();
//On retourne le livre
return cSmsReceived;
}
}
为什么我的查找方法不起作用？
就像@Elite 说的，日志猫可能很有趣（日志已更新）：
02-19 08:12:29.568 8463-8463/? I/art: Not late-enabling -Xcheck:jni (already on)
02-19 08:12:29.592 8463-8463/? W/System: ClassLoader referenced unknown path: /data/app/com.dev.boblinux.cador-1/lib/x86
02-19 08:12:29.592 8463-8471/? E/art: Failed writing handshake bytes (-1 of 14): Broken pipe
02-19 08:12:29.592 8463-8471/? I/art: Debugger is no longer active
02-19 08:12:29.599 8463-8463/? I/GMPM: App measurement is starting up, version: 8487
02-19 08:12:29.599 8463-8463/? I/GMPM: To enable debug logging run: adb shell setprop log.tag.GMPM VERBOSE
02-19 08:12:29.603 8463-8463/? E/GMPM: GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services. Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
02-19 08:12:29.603 8463-8463/? E/GMPM: Scheduler not set. Not logging error/warn.
02-19 08:12:29.632 8463-8479/? E/GMPM: Uploading is not possible. App measurement disabled
02-19 08:12:29.644 8463-8463/? I/test: try ok
02-19 08:12:29.644 8463-8463/? E/SQLiteLog: (1) no such table: table_sms_received
02-19 08:12:29.644 8463-8463/? E/SQLiteDatabase: Error inserting phone=+33565456 processed=zz dateReceiving=janvier data=coords XY
android.database.sqlite.SQLiteException: no such table: table_sms_received (code 1): , while compiling: INSERT INTO table_sms_received(phone,processed,dateReceiving,data) VALUES (?,?,?,?)
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:887)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:498)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1469)
at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1341)
at com.dev.boblinux.cador.bdd.CSmsReceiverDAO.persist(CSmsReceiverDAO.java:85)
at com.dev.boblinux.cador.activities.CMainActivity.onCreate(CMainActivity.java:43)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
02-19 08:12:29.644 8463-8463/? I/test: persist ok
02-19 08:12:29.644 8463-8463/? E/SQLiteLog: (1) no such table: table_sms_received
02-19 08:12:29.645 8463-8463/? W/System.err: android.database.sqlite.SQLiteException: no such table: table_sms_received (code 1): , while compiling: SELECT ID, dateReceiving, processed, phone, data FROM table_sms_received WHERE dateReceiving LIKE "janvier"
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:887)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:498)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1316)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1163)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1034)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1202)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.dev.boblinux.cador.bdd.CSmsReceiverDAO.find(CSmsReceiverDAO.java:64)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.dev.boblinux.cador.activities.CMainActivity.onCreate(CMainActivity.java:45)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.Activity.performCreate(Activity.java:6237)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.-wrap11(ActivityThread.java)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.os.Looper.loop(Looper.java:148)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5417)
02-19 08:12:29.645 8463-8463/? W/System.err: at java.lang.reflect.Method.invoke(Native Method)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
02-19 08:12:29.669 8463-8481/? D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
02-19 08:12:29.801 8463-8481/? I/OpenGLRenderer: Initialized EGL, version 1.4
02-19 08:12:29.866 8463-8481/? W/EGL_emulation: eglSurfaceAttrib not implemented
02-19 08:12:29.866 8463-8481/? W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xad760be0, error=EGL_SUCCESS
02-19 08:12:30.483 8463-8463/? I/Choreographer: Skipped 45 frames! The application may be doing too much work on its main thread.
为什么我不能创建我的 table table_sms_received？ （好像是主要问题
values.put(t.getDateReceiving(), NUM_COL_DateReceiving);
values.put(t.getProcessed(), NUM_COL_PROCESSED);
values.put(t.getPhone(), NUM_COL_PHONE);
values.put(t.getData(), NUM_COL_DATA);
=>
values.put(COL_DateReceiving,t.getDateReceiving());
values.put(COL_PROCESSED, t.getProcessed());
values.put(COL_PHONE, t.getPhone());
values.put(COL_DATA, t.getData());
并且当您更改某些代码时，您必须卸载并重新安装您的应用程序（必需！），重新制作新的数据库，然后才能正常工作。
我尝试实现一个 android 应用程序来接收短信并将其保存在本地数据库中，这里我们将使用 Sqlite，
在我的主 activity 中，我尝试保留一条短信，然后，我尝试从我的数据库中读取它，但我不能，从未执行过 find() 行（那是什么说我的日志），这是我主要的一些代码 activity :
CSmsReceiverDAO cSmsReceiverDAO = new CSmsReceiverDAO(this);
CSmsReceived SmsReceived1 = new CSmsReceived.SmsReceivedBuilder()
.Data("coords XY").DateReceiving("janvier").Phone("+33565456").Processed("zz").build();
cSmsReceiverDAO.open();
try {
Log.i("test","try ok");
cSmsReceiverDAO.persist(SmsReceived1);
Log.i("test", "persist ok");
CSmsReceived smsFromBdd = cSmsReceiverDAO.find(SmsReceived1.getDateReceiving());
Log.i("test", "find ok");
if (smsFromBdd !=null){
Toast.makeText(this, smsFromBdd.toString(), Toast.LENGTH_LONG).show();
}
else {
Toast.makeText(this, "persist fail...", Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
e.printStackTrace();
}
我的日志说：
02-19 07:19:23.087 2837-2837/? I/test: try ok
02-19 07:19:23.087 2837-2837/? I/test: persist ok
但我没有线路 "find ok"。
这是我如何构建我的短信（我使用构建器模式）：
public class CSmsReceived implements Serializable{
private final String dateReceiving; // optional
private final String processed; // optional
private final String phone; // optional
private final String data; // optional
private CSmsReceived(SmsReceivedBuilder builder) {
this.dateReceiving = builder.dateReceiving;
this.processed = builder.processed;
this.phone = builder.phone;
this.data = builder.data;
}
public String getDateReceiving() {
return dateReceiving;
}
public String getProcessed() {
return processed;
}
public String getPhone() {
return phone;
}
public String getData() {
return data;
}
public String toString(){
return "dateReceiving : " + dateReceiving + " processed : " + processed +"\n"
+ " phone : " + phone + " data : " + data;
}
public static class SmsReceivedBuilder {
private String dateReceiving;
private String processed;
private String phone;
private String data;
public SmsReceivedBuilder Data(String data) {
this.data = data;
return this;
}
public SmsReceivedBuilder DateReceiving(String dateReceiving) {
this.dateReceiving = dateReceiving;
return this;
}
public SmsReceivedBuilder Phone(String phone) {
this.phone = phone;
return this;
}
public SmsReceivedBuilder Processed(String processed) {
this.processed = processed;
return this;
}
public CSmsReceived build() {
return new CSmsReceived(this);
}
}
}
这是我创建的数据库：（连接并创建 tables）
编辑：尝试创建 TABLE 如果不存在 – @Prithviraj Shiroor 但它没有任何改变
public class CMaBaseSQLite extends SQLiteOpenHelper {
private static final String COL_ID = "ID";
private static final String TABLE_SMS_SENT = "table_sms_sent";
private static final String COL_DateSending = "dateSending";
private static final String TABLE_SMS_RECEIVED = "table_sms_received";
private static final String COL_DateReceiving = "dateReceiving";
private static final String COL_PROCESSED ="processed";
private static final String COL_PHONE ="phone";
private static final String COL_DATA ="data";
private static final String CREATE_BDD_SMS_RECEIVED = "CREATE TABLE IF NOT EXISTS " + TABLE_SMS_RECEIVED + " ("
+ COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COL_DateReceiving + " TEXT, "
+ COL_PROCESSED + " TEXT, " + COL_PHONE + " TEXT, " + COL_DATA + " TEXT);";
private static final String CREATE_BDD_SMS_SENT = "CREATE TABLE IF NOT EXISTS" + TABLE_SMS_SENT + " ("
+ COL_ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " + COL_DateSending + " TEXT, "
+ COL_PHONE + " TEXT, " + COL_DATA + " TEXT NOT NULL);";
public CMaBaseSQLite(Context context, String name, CursorFactory factory, int version) {
super(context, name, factory, version);
}
@Override
public void onCreate(SQLiteDatabase db) {
//on créé la table à partir de la requête écrite dans la variable CREATE_BDD sent et received
db.execSQL(CREATE_BDD_SMS_RECEIVED);
db.execSQL(CREATE_BDD_SMS_SENT);
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
//On peut fait ce qu'on veut ici moi j'ai décidé de supprimer la table et de la recréer
//comme ça lorsque je change la version les id repartent de 0
db.execSQL("DROP TABLE " + TABLE_SMS_SENT + ";");
db.execSQL("DROP TABLE IF EXISTS " + TABLE_SMS_RECEIVED + ";");
onCreate(db);
}
}
最后是我的 smsDAO :
编辑：已调试持久化方法
values.put(t.getDateReceiving(), NUM_COL_DateReceiving);
values.put(t.getProcessed(), NUM_COL_PROCESSED);
values.put(t.getPhone(), NUM_COL_PHONE);
values.put(t.getData(), NUM_COL_DATA);
=>
values.put(COL_DateReceiving,t.getDateReceiving());
values.put(COL_PROCESSED, t.getProcessed());
values.put(COL_PHONE, t.getPhone());
values.put(COL_DATA, t.getData());
现在我的代码：
public class CSmsReceiverDAO implements IDAO<CSmsReceived> {
private SQLiteDatabase bdd;
private CMaBaseSQLite cMaBaseSQLite;
private static final String NOM_BDD = "sms.db";
private static final int VERSION_BDD = 1;
private static final String COL_ID = "ID";
private static final int NUM_COL_ID = 0;
private static final String TABLE_SMS_SENT = "table_sms_sent";
private static final String COL_DateSending = "dateSending";
private static final String TABLE_SMS_RECEIVED = "table_sms_received";
private static final String COL_DateReceiving = "dateReceiving";
private static final int NUM_COL_DateReceiving = 1;
private static final String COL_PROCESSED ="processed";
private static final int NUM_COL_PROCESSED = 2;
private static final String COL_PHONE ="phone";
private static final int NUM_COL_PHONE= 3;
private static final String COL_DATA ="data";
private static final int NUM_COL_DATA= 4;
public CSmsReceiverDAO(Context context){
//On créer la BDD et sa table
cMaBaseSQLite = new CMaBaseSQLite(context, NOM_BDD, null, VERSION_BDD);
}
public void open(){
//on ouvre la BDD en écriture
bdd = cMaBaseSQLite.getWritableDatabase();
}
public void close(){
//on ferme l accès à la BDD
bdd.close();
}
public SQLiteDatabase getBDD(){
return bdd;
}
@Override
public CSmsReceived find(String date) throws Exception {
//Récupère dans un Cursor les valeur correspondant à un livre contenu dans la BDD (ici on sélectionne le livre grâce à son titre)
Cursor c = bdd.query(TABLE_SMS_RECEIVED, new String[] {COL_ID, COL_DateReceiving, COL_PROCESSED, COL_PHONE, COL_DATA}, COL_DateReceiving + " LIKE \"" + date +"\"", null, null, null, null);
return cursorToSms(c);
}
@Override
public List<CSmsReceived> findAll() throws Exception {
return null;
}
@Override
public void persist(CSmsReceived t) throws Exception {
//Création d un ContentValues (fonctionne comme une HashMap)
ContentValues values = new ContentValues();
//on lui ajoute une valeur associé à une clé (qui est le nom de la colonne dans laquelle on veut mettre la valeur)
values.put(COL_DateReceiving,t.getDateReceiving());
values.put(COL_PROCESSED, t.getProcessed());
values.put(COL_PHONE, t.getPhone());
values.put(COL_DATA, t.getData());
//on insère l objet dans la BDD via le ContentValues
bdd.insert(TABLE_SMS_RECEIVED, null, values);
}
@Override
public void remove(CSmsReceived t) throws Exception {
}
@Override
public void update(CSmsReceived s, CSmsReceived t) throws Exception {
}
@Override
public void refresh(CSmsReceived t) throws Exception {
}
//Cette méthode permet de convertir un cursor en un sms
private CSmsReceived cursorToSms(Cursor c){
//si aucun élément n a été retourné dans la requête, on renvoie null
if (c.getCount() == 0)
return null;
//Sinon on se place sur le premier élément
c.moveToFirst();
//On créé un sms
//on lui affecte toutes les infos grâce aux infos contenues dans le Cursor
CSmsReceived cSmsReceived = new CSmsReceived.SmsReceivedBuilder()
.DateReceiving(c.getString(NUM_COL_DateReceiving))
.Processed(c.getString(NUM_COL_PROCESSED)).Phone(c.getString(NUM_COL_PHONE))
.Data(c.getString(NUM_COL_DATA)).build();
//On ferme le cursor
c.close();
//On retourne le livre
return cSmsReceived;
}
}
为什么我的查找方法不起作用？
就像@Elite 说的，日志猫可能很有趣（日志已更新）：
02-19 08:12:29.568 8463-8463/? I/art: Not late-enabling -Xcheck:jni (already on)
02-19 08:12:29.592 8463-8463/? W/System: ClassLoader referenced unknown path: /data/app/com.dev.boblinux.cador-1/lib/x86
02-19 08:12:29.592 8463-8471/? E/art: Failed writing handshake bytes (-1 of 14): Broken pipe
02-19 08:12:29.592 8463-8471/? I/art: Debugger is no longer active
02-19 08:12:29.599 8463-8463/? I/GMPM: App measurement is starting up, version: 8487
02-19 08:12:29.599 8463-8463/? I/GMPM: To enable debug logging run: adb shell setprop log.tag.GMPM VERBOSE
02-19 08:12:29.603 8463-8463/? E/GMPM: GoogleService failed to initialize, status: 10, Missing an expected resource: 'R.string.google_app_id' for initializing Google services. Possible causes are missing google-services.json or com.google.gms.google-services gradle plugin.
02-19 08:12:29.603 8463-8463/? E/GMPM: Scheduler not set. Not logging error/warn.
02-19 08:12:29.632 8463-8479/? E/GMPM: Uploading is not possible. App measurement disabled
02-19 08:12:29.644 8463-8463/? I/test: try ok
02-19 08:12:29.644 8463-8463/? E/SQLiteLog: (1) no such table: table_sms_received
02-19 08:12:29.644 8463-8463/? E/SQLiteDatabase: Error inserting phone=+33565456 processed=zz dateReceiving=janvier data=coords XY
android.database.sqlite.SQLiteException: no such table: table_sms_received (code 1): , while compiling: INSERT INTO table_sms_received(phone,processed,dateReceiving,data) VALUES (?,?,?,?)
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:887)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:498)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1469)
at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1341)
at com.dev.boblinux.cador.bdd.CSmsReceiverDAO.persist(CSmsReceiverDAO.java:85)
at com.dev.boblinux.cador.activities.CMainActivity.onCreate(CMainActivity.java:43)
at android.app.Activity.performCreate(Activity.java:6237)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
02-19 08:12:29.644 8463-8463/? I/test: persist ok
02-19 08:12:29.644 8463-8463/? E/SQLiteLog: (1) no such table: table_sms_received
02-19 08:12:29.645 8463-8463/? W/System.err: android.database.sqlite.SQLiteException: no such table: table_sms_received (code 1): , while compiling: SELECT ID, dateReceiving, processed, phone, data FROM table_sms_received WHERE dateReceiving LIKE "janvier"
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:887)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:498)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1316)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1163)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1034)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1202)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.dev.boblinux.cador.bdd.CSmsReceiverDAO.find(CSmsReceiverDAO.java:64)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.dev.boblinux.cador.activities.CMainActivity.onCreate(CMainActivity.java:45)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.Activity.performCreate(Activity.java:6237)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.-wrap11(ActivityThread.java)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.os.Handler.dispatchMessage(Handler.java:102)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.os.Looper.loop(Looper.java:148)
02-19 08:12:29.645 8463-8463/? W/System.err: at android.app.ActivityThread.main(ActivityThread.java:5417)
02-19 08:12:29.645 8463-8463/? W/System.err: at java.lang.reflect.Method.invoke(Native Method)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
02-19 08:12:29.645 8463-8463/? W/System.err: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
02-19 08:12:29.669 8463-8481/? D/OpenGLRenderer: Use EGL_SWAP_BEHAVIOR_PRESERVED: true
02-19 08:12:29.801 8463-8481/? I/OpenGLRenderer: Initialized EGL, version 1.4
02-19 08:12:29.866 8463-8481/? W/EGL_emulation: eglSurfaceAttrib not implemented
02-19 08:12:29.866 8463-8481/? W/OpenGLRenderer: Failed to set EGL_SWAP_BEHAVIOR on surface 0xad760be0, error=EGL_SUCCESS
02-19 08:12:30.483 8463-8463/? I/Choreographer: Skipped 45 frames! The application may be doing too much work on its main thread.
为什么我不能创建我的 table table_sms_received？ （好像是主要问题
values.put(t.getDateReceiving(), NUM_COL_DateReceiving);
values.put(t.getProcessed(), NUM_COL_PROCESSED);
values.put(t.getPhone(), NUM_COL_PHONE);
values.put(t.getData(), NUM_COL_DATA);
=>
values.put(COL_DateReceiving,t.getDateReceiving());
values.put(COL_PROCESSED, t.getProcessed());
values.put(COL_PHONE, t.getPhone());
values.put(COL_DATA, t.getData());
并且当您更改某些代码时，您必须卸载并重新安装您的应用程序（必需！），重新制作新的数据库，然后才能正常工作。