致命例外：主（SQLite數據庫）

-2

應用程序一啓動就立即關閉。我不知道我做錯了什麼。 請幫助！致命例外：主（SQLite數據庫）

這是主要活動： -

package com.work.pets; 
    import android.app.Activity; 
    import android.content.ContentValues; 
    import android.content.Intent; 
    import android.database.Cursor; 
    import android.database.sqlite.SQLiteDatabase; 
    import android.os.Bundle; 
    import android.util.Log; 
    import android.view.Menu; 
    import android.view.MenuItem; 
    import android.view.View; 
    import android.view.View.OnClickListener; 
    import android.widget.Button; 
    import android.widget.TextView; 
    import data.PetContract.PetEntry; 
    import data.PetDbHelper; 
    public class Main extends Activity { 
    private PetDbHelper mDbHelper; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    Button addpet= (Button) findViewById(R.id.addpetbutton); 
    addpet.setOnClickListener(new View.OnClickListener() { 
    @Override 
    public void onClick(View v) { 
    Intent intent = new Intent(Main.this,Editor.class); 
    startActivity(intent); 
    } 
    }); 
    mDbHelper=new PetDbHelper(this); 
    } 
    @Override 
    protected void onStart(){ 
    super.onStart(); 
    displayDatabaseInfo(); 
    } 
    private void displayDatabaseInfo(){ 
    PetDbHelper mDbHelper=new PetDbHelper(this); 
    SQLiteDatabase db=mDbHelper.getReadableDatabase(); 
    Cursor cursor = db.rawQuery("SELECT * FROM" + PetEntry.TABLE_NAME, null); 
    try{ 
    TextView displayView= (TextView) findViewById(R.id.text_view_pet); 
    displayView.setText("Number of rows" + cursor.getCount()); 
    }finally{ 
    cursor.close(); 
    } 
    } 
    private void insertPet(){ 
    SQLiteDatabase db= mDbHelper.getWritableDatabase(); 
    ContentValues values= new ContentValues(); 
    values.put(PetEntry.COLUMN_PET_NAME,"Toto"); 
    values.put(PetEntry.COLUMN_PET_BREED,"terrier"); 
    values.put(PetEntry.COLUMN_PET_GENDER,PetEntry.GENDER_MALE); 
    values.put(PetEntry.COLUMN_PET_WEIGHT,20); 
    long newRowId=db.insert(PetEntry.TABLE_NAME, null, values); 
    Log.v("Main", "New row id" + newRowId); 
    } 
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
    getMenuInflater().inflate(R.menu.menu_catalog, menu); 
    return true; 
    } 
    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
    switch (item.getItemId()) { 
    case R.id.action_insert_dummy_data: 
    insertPet(); 
    displayDatabaseInfo(); 
    return true; 
    case R.id.action_delete_all_entries: 
    return true; 
    } 
    return super.onOptionsItemSelected(item); 
    } 
    }

這是第二活動： -

package com.work.pets; 
    import android.app.Activity; 
    import android.content.ContentValues; 
    import android.database.sqlite.SQLiteDatabase; 
    import android.os.Bundle; 
    import android.support.v4.app.NavUtils; 
    import android.text.TextUtils; 
    import android.view.Menu; 
    import android.view.MenuItem; 
    import android.view.View; 
    import android.widget.AdapterView; 
    import android.widget.ArrayAdapter; 
    import android.widget.EditText; 
    import android.widget.Spinner; 
    import android.widget.Toast; 
    import data.PetContract; 
    import data.PetContract.PetEntry; 
    import data.PetDbHelper; 
    public class Editor extends Activity { 
    private EditText mNameEditText; 
    private EditText mBreedEditText; 
    private EditText mWeightEditText; 
    private Spinner mGenderSpinner; 
    private int mGender=0; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.editorview); 
    mNameEditText=(EditText) findViewById(R.id.pet_name); 
    mBreedEditText=(EditText) findViewById(R.id.pet_breed); 
    mWeightEditText=(EditText) findViewById(R.id.pet_weight); 
    mGenderSpinner=(Spinner) findViewById(R.id.spinner); 
    setupSpinner(); 
    } 
    private void setupSpinner() { 
    ArrayAdapter genderspinneradapter = ArrayAdapter.createFromResource(this, R.array.array_gender_options, android.R.layout.simple_dropdown_item_1line); 
    genderspinneradapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line); 
    mGenderSpinner.setAdapter(genderspinneradapter); 
    mGenderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
    @Override 
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
    String selection = (String) parent.getItemAtPosition(position); 
    if (!TextUtils.isEmpty(selection)) { 
    if (selection.equals("Male")) { 
    mGender = PetEntry.GENDER_MALE; // Male 
    } else if (selection.equals("Female")) { 
    mGender = PetEntry.GENDER_FEMALE; // Female 
    } else { 
    mGender = PetEntry.GENDER_UNKNOWN; // Unknown 
    } 
    } 
    } 
    @Override 
    public void onNothingSelected(AdapterView<?> parent) { 
    mGender=0; 
    } 
    }); 
    } 
    private void insertPet(){ 
    String nameString = mNameEditText.getText().toString().trim(); 
    String breedString = mBreedEditText.getText().toString().trim(); 
    String weightString = mWeightEditText.getText().toString().trim(); 
    int weight= Integer.parseInt(weightString); 
    PetDbHelper mDbHelper = new PetDbHelper(this); 
    SQLiteDatabase db= mDbHelper.getWritableDatabase(); 
    ContentValues values= new ContentValues(); 
    values.put(PetEntry.COLUMN_PET_NAME,nameString); 
    values.put(PetEntry.COLUMN_PET_BREED,breedString); 
    values.put(PetEntry.COLUMN_PET_GENDER,mGender); 
    values.put(PetEntry.COLUMN_PET_WEIGHT,weight); 
    long newRowId=db.insert(PetEntry.TABLE_NAME, null, values); 
    if(newRowId==-1){ 
    Toast.makeText(this, "Error with saving pet", Toast.LENGTH_SHORT).show(); 
    }else{ 
    Toast.makeText(this, "Pet saved with roe id:"+newRowId, Toast.LENGTH_SHORT).show(); 
    } 
    } 
    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
    getMenuInflater().inflate(R.menu.menu_editor, menu); 
    return true; 
    } 
    public boolean onOptionsItemSelected(MenuItem item) { 
    switch (item.getItemId()) { 
    case R.id.action_save: 
    insertPet(); 
    finish(); 
    return true; 
    case R.id.action_delete: 
    return true; 
    case android.R.id.home: 
    NavUtils.navigateUpFromSameTask(this); 
    return true; 
    } 
    return super.onOptionsItemSelected(item); 
    } 
    }

這是協定類： -

package data; 
    import android.provider.BaseColumns; 
    public final class PetContract { 
    private PetContract(){} 
    public static final class PetEntry implements BaseColumns{ 
    public final static String TABLE_NAME="pets"; 
    public final static String _ID= BaseColumns._ID; 
    public final static String COLUMN_PET_NAME="name"; 
    public final static String COLUMN_PET_BREED="breed"; 
    public final static String COLUMN_PET_GENDER="gender"; 
    public final static String COLUMN_PET_WEIGHT="weight"; 
    public static final int GENDER_UNKNOWN=0; 
    public static final int GENDER_MALE=1; 
    public static final int GENDER_FEMALE=2; 
    } 
    } 

THIS IS THE HELPER CLASS:- 

    package data; 
    import android.content.Context; 
    import android.database.sqlite.SQLiteDatabase; 
    import android.database.sqlite.SQLiteOpenHelper; 
    import data.PetContract.PetEntry; 
    public class PetDbHelper extends SQLiteOpenHelper{ 
    private static final String DATABASE_NAME="shelter.db"; 
    private static final int DATABASE_VERSION=1; 
    public PetDbHelper(Context context){ 
    super(context, DATABASE_NAME, null, DATABASE_VERSION); 
    } 
    @Override 
    public void onCreate(SQLiteDatabase db) { 
    String SQL_CREATE_PETS_TABLE="CREATE_TABLE" 
    + PetEntry.TABLE_NAME + "(" 
    + PetEntry._ID + "INTEGER PRIMARY KEY AUTOINCREMENT," 
    + PetEntry.COLUMN_PET_NAME + "TEXT NOT NULL," 
    + PetEntry.COLUMN_PET_BREED + "TEXT," 
    + PetEntry.COLUMN_PET_GENDER + "INTEGER NOT NULL," 
    + PetEntry.COLUMN_PET_WEIGHT + "INTEGER NOT NULL DEFAULT 0);";   
    db.execSQL(SQL_CREATE_PETS_TABLE); 
    } 
    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
    } 
    }

這是錯誤日誌： -

04-17 14:27:56.514: E/SQLiteLog(1403): (1) near "CREATE_TABLEpets": syntax error 

    04-17 14:27:56.518: D/AndroidRuntime(1403): Shutting down VM 

    04-17 14:27:56.518: W/dalvikvm(1403): threadid=1: thread exiting with uncaught exception (group=0xa62bd288) 

    04-17 14:27:56.518: E/AndroidRuntime(1403): FATAL EXCEPTION: main 

    04-17 14:27:56.518: E/AndroidRuntime(1403): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.work.pets/com.work.pets.Main}: android.database.sqlite.SQLiteException: near "CREATE_TABLEpets": syntax error (code 1): , while compiling: CREATE_TABLEpets(_idINTEGER PRIMARY KEY AUTOINCREMENT,nameTEXT NOT NULL,breedTEXT,genderINTEGER NOT NULL,weightINTEGER NOT NULL DEFAULT 0); 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.ActivityThread.access$600(ActivityThread.java:130) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.os.Handler.dispatchMessage(Handler.java:99) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.os.Looper.loop(Looper.java:137) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.ActivityThread.main(ActivityThread.java:4745) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at java.lang.reflect.Method.invokeNative(Native Method) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at java.lang.reflect.Method.invoke(Method.java:511) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at dalvik.system.NativeStart.main(Native Method) 

    04-17 14:27:56.518: E/AndroidRuntime(1403): Caused by: android.database.sqlite.SQLiteException: near "CREATE_TABLEpets": syntax error (code 1): , while compiling: CREATE_TABLEpets(_idINTEGER PRIMARY KEY AUTOINCREMENT,nameTEXT NOT NULL,breedTEXT,genderINTEGER NOT NULL,weightINTEGER NOT NULL DEFAULT 0); 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:882) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:493) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1663) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1594) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at data.PetDbHelper.onCreate(PetDbHelper.java:31) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:252) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.database.sqlite.SQLiteOpenHelper.getReadableDatabase(SQLiteOpenHelper.java:188) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at com.work.pets.Main.displayDatabaseInfo(Main.java:54) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at com.work.pets.Main.onStart(Main.java:47) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1163) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.Activity.performStart(Activity.java:5018) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2032) 

    04-17 14:27:56.518: E/AndroidRuntime(1403):  ... 11 more 

    04-17 14:27:56.522: W/Act 

ivityManager(325): Force finishing activity com.work.pets/.Main

來源

2017-04-17 Nitesh Shrestha

'CREATE_TABLE'到'CREATE TABLE'？ – 2017-04-17 14:58:43

你忘了這部分空間：

String SQL_CREATE_PETS_TABLE="CREATE_TABLE" 
+ PetEntry.TABLE_NAME + "("

改成這樣：

String SQL_CREATE_PETS_TABLE="CREATE TABLE " 
+ PetEntry.TABLE_NAME + " (" 
+ PetEntry._ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " 
+ PetEntry.COLUMN_PET_NAME + " TEXT NOT NULL, " 
+ PetEntry.COLUMN_PET_BREED + " TEXT, " 
+ PetEntry.COLUMN_PET_GENDER + " INTEGER NOT NULL, " 
+ PetEntry.COLUMN_PET_WEIGHT + " INTEGER NOT NULL DEFAULT 0)";   
db.execSQL(SQL_CREATE_PETS_TABLE);

來源

2017-04-17 14:57:11

錯誤已更改爲： - 04-17 15：03：25.562：E/SQLiteLog（1703）：（1）靠近「CREATE_TABLE」：語法錯誤04-17 15：03：25.582：E/AndroidRuntime（ 1703）：FATAL EXCEPTION：main 04-17 15：03：25.582：E/AndroidRuntime（1703）：java.lang.RuntimeException：無法啓動活動ComponentInfo {com.work.pets/com.work.pets.Main}： android.database.sqlite。SQLiteException：接近「CREATE_TABLE」：語法錯誤（代碼1）：編譯時：CREATE_TABLE pets（_ID INTEGER PRIMARY KEY AUTOINCREMENT，nameTEXT NOT NULL，breedTEXT，genderINTEGER NOT NULL，weightINTEGER NOT NULL DEFAULT 0） –

謝謝你那麼多：'D –

不用擔心：D –

A.使用CREATE TABLE代替的CREATE_TABLE

B.添加空格聲明

之間更新您PetDbHelper類，如下：

package data; 
import android.content.Context; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import data.PetContract.PetEntry; 
public class PetDbHelper extends SQLiteOpenHelper{ 
private static final String DATABASE_NAME="shelter.db"; 
private static final int DATABASE_VERSION=1; 
public PetDbHelper(Context context){ 
super(context, DATABASE_NAME, null, DATABASE_VERSION); 
} 
@Override 
public void onCreate(SQLiteDatabase db) { 
    String SQL_CREATE_PETS_TABLE = "CREATE TABLE " 
    + PetEntry.TABLE_NAME + " (" 
    + PetEntry._ID + " INTEGER PRIMARY KEY AUTOINCREMENT, " 
    + PetEntry.COLUMN_PET_NAME + " TEXT NOT NULL, " 
    + PetEntry.COLUMN_PET_BREED + " TEXT, " 
    + PetEntry.COLUMN_PET_GENDER + " INTEGER NOT NULL, " 
    + PetEntry.COLUMN_PET_WEIGHT + " INTEGER NOT NULL DEFAULT 0)";   

    db.execSQL(SQL_CREATE_PETS_TABLE); 
} 
@Override 
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
} 
}

來源

2017-04-17 14:58:48 FAT

錯誤已更改爲此： - 04-17 15：03：25.562：E/SQLiteLog（1703）：（1）靠近「CREATE_TABLE」：語法錯誤 04-17 15:03 ：25.582：E/AndroidRuntime（1703）：致命例外：main 04-17 15：03：25.582：E/AndroidRuntime（1703）：java.lang.RuntimeException：無法啓動活動ComponentInfo {com.work.pets/com （編譯時）：CREATE_TABLE pets（_id INTEGER PRIMARY KEY AUTOINCREMENT，nameTEXT NOT NULL，breedTEXT，genderINTEGER NOT NULL， weightINTEGE R NOT NULL DEFAULT 0） –

您仍在使用CREATE _TABLE。根據我的回答改變。只需複製並粘貼此字符串>>> = SQL_CREATE_PETS_TABLE 「CREATE TABLE」 + PetEntry.TABLE_NAME + 「（」 + PetEntry._ID + 「INTEGER PRIMARY KEY AUTOINCREMENT，」 + PetEntry.COLUMN_PET_NAME + 「TEXT NOT NULL，」 + PetEntry.COLUMN_PET_BREED +「TEXT」， + PetEntry.COLUMN_PET_GENDER +「INTEGER NOT NULL」， + PetEntry.COLUMN_PET_WEIGHT +「INTEGER NOT NULL DEFAULT 0」）; – FAT

@SudeepShrestha這個答案應該被接受的答案。 – FAT

有一個語法錯誤在你的代碼

04-17 14 ：27：56.514：E/SQLiteLog（1403）：（1）在「CREATE_TABLEpets」附近：語法錯誤

SQL CREATE TABLE語句的語法：

CREATE TABLE table_name (
    column1 datatype, 
    column2 datatype, 
    column3 datatype, 
    .... 
);

你寫什麼：

CREATE_TABLEpets(_idINTEGER PRIMARY KEY AUTOINCREMENT,nameTEXT NOT NULL,breedTEXT,genderINTEGER NOT NULL,weightINTEGER NOT NULL DEFAULT 0);

適當加空格和改變CREATE_TABLE到CREATE TABLE

這裏是一個考試ple來自Android Docs

private static final String SQL_CREATE_ENTRIES = 
    "CREATE TABLE " + FeedEntry.TABLE_NAME + " (" + 
    FeedEntry._ID + " INTEGER PRIMARY KEY," + 
    FeedEntry.COLUMN_NAME_TITLE + " TEXT," + 
    FeedEntry.COLUMN_NAME_SUBTITLE + " TEXT)";

來源

2017-04-17 15:33:47 rayan

你能請至少upvote我的答案。謝謝 – rayan

致命例外：主（SQLite數據庫）

回答

相關問題