我昨天问过这个问题，但从来没有得到最终的解决方案。我遇到一个问题，当我输入数据插入我的数据库时，应用程序崩溃试图将其添加进去。我不确定该问题，之后多次尝试清理我的代码，没有任何工作。该错误是由我sqLiteDatabase = myDB.getWritableDatabase();中的addScoutInfo();和AddScoutDataFragment.java引起的，但即使在尝试清理它之后，仍然无效。这次我希望我的所有课程都能找出问题。
AddScoutDataFragment.java
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
/**
* A simple {@link Fragment} subclass.
*/
public class AddScoutDataFragment extends Fragment {
Button cancelButton;
Button addDataButton;
DatabaseHelper myDB;
EditText tNumber, tPoticullis, tChevalFrise, tMoat, tRamparts, tDrawbridge, tSallyPort, tRockWall, tRockTerrain, tLowBar;
SQLiteDatabase sqLiteDatabase;
public AddScoutDataFragment() {
// Required empty public constructor
} //End of AddScoutDataFragment
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_add_scout_data, container, false);
view.setBackgroundColor(Color.WHITE);
//Starts database
myDB = new DatabaseHelper(getActivity());
//Instantiate all editText objects
tNumber = (EditText) view.findViewById(R.id.editNumber);
tPoticullis = (EditText) view.findViewById(R.id.editPoticullis);
tChevalFrise = (EditText) view.findViewById(R.id.editChevalFrise);
tMoat = (EditText) view.findViewById(R.id.editMoat);
tRamparts = (EditText) view.findViewById(R.id.editRamparts);
tDrawbridge = (EditText) view.findViewById(R.id.editDrawbridge);
tSallyPort = (EditText) view.findViewById(R.id.editSallyPort);
tRockWall = (EditText) view.findViewById(R.id.editRockWall);
tRockTerrain = (EditText) view.findViewById(R.id.editRockTerrain);
tLowBar = (EditText) view.findViewById(R.id.editLowBar);
//Adds data to ScoutFragment
addDataButton = (Button) view.findViewById(R.id.buttonDataAdd);
addDataButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//Saves data to database
addScoutInfo();
//Returns to ScoutFragment
ScoutFragment fragment = new ScoutFragment();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.setCustomAnimations(R.anim.enter_from_left, R.anim.exit_to_right, R.anim.enter_from_right, R.anim.exit_to_left);
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
} //End of onClick
}); //End of setOnClickListener
//Returns to ScoutFragment without adding any data
cancelButton = (Button) view.findViewById(R.id.buttonCancel);
cancelButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//Returns to ScoutFragment
ScoutFragment fragment = new ScoutFragment();
FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
fragmentTransaction.setCustomAnimations(R.anim.enter_from_left, R.anim.exit_to_right, R.anim.enter_from_right, R.anim.exit_to_left);
fragmentTransaction.replace(R.id.fragment_container, fragment);
fragmentTransaction.commit();
} //End of onClick
}); //End of setOnClickListener
// Inflates the layout for this fragment
return view;
} //End of onCreateView
public void addScoutInfo() {
//Converts all editText values into strings
String sNumber = tNumber.getText().toString();
String sPoticullis = tPoticullis.getText().toString();
String sChevalFrise = tChevalFrise.getText().toString();
String sMoat = tMoat.getText().toString();
String sRamparts = tRamparts.getText().toString();
String sDrawbridge = tDrawbridge.getText().toString();
String sSallyPort = tSallyPort.getText().toString();
String sRockWall = tRockWall.getText().toString();
String sRockTerrain = tRockTerrain.getText().toString();
String sLowBar = tLowBar.getText().toString();
//Saves data
sqLiteDatabase = myDB.getWritableDatabase();
myDB.addInformation(sNumber, sPoticullis, sChevalFrise, sMoat, sRamparts, sDrawbridge, sSallyPort, sRockWall,
sRockTerrain, sLowBar, sqLiteDatabase);
Toast.makeText(getContext(), "Data Saved", Toast.LENGTH_LONG).show();
myDB.close();
} //End of addScoutInfo
} //End of class
DatabaseHelper.java
import android.content.ContentValues;
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;
public class DatabaseHelper extends SQLiteOpenHelper {
public static final String DATABASE_NAME = "Scout.db";
private static final int DATABASE_VERSION = 1;
private static final String CREATE_QUERY = "CREATE TABLE " + DatabaseContract.NewDataInfo.TABLE_NAME + "(" + DatabaseContract.NewDataInfo.COL_NUMBER +
" INTEGER PRIMARY KEY AUTOINCREMENT," + DatabaseContract.NewDataInfo.COL_POTICULLIS + " TEXT," + DatabaseContract.NewDataInfo.COL_CHEVAL_FRISE + " TEXT," +
DatabaseContract.NewDataInfo.COL_MOAT + " TEXT," + DatabaseContract.NewDataInfo.COL_RAMPARTS + " TEXT," + DatabaseContract.NewDataInfo.COL_DRAWBRIDGE +
" TEXT," + DatabaseContract.NewDataInfo.COL_SALLY_PORT + " TEXT," + DatabaseContract.NewDataInfo.COL_ROCK_WALL + " TEXT," +
DatabaseContract.NewDataInfo.COL_ROCK_TERRAIN + " TEXT," + DatabaseContract.NewDataInfo.COL_LOW_BAR + "TEXT);";
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
Log.e("DATABASE OPERATIONS", "Database created / opened ...");
} //End of DatabaseHelper
@Override
public void onCreate(SQLiteDatabase db) {
//Create Query
db.execSQL(CREATE_QUERY);
//Display Log message
Log.e("DATABASE OPERATIONS", "Table created...");
} //End of onCreate
public void addInformation(String eNumber, String ePoticullis, String eChevalFrise, String eMoat, String eRamparts, String eDrawbridge, String eSallyPort,
String eRockWall, String eRockTerrain, String eLowBar, SQLiteDatabase db) {
//Instantiate contentValues
ContentValues contentValues = new ContentValues();
//Insert all content values
contentValues.put(DatabaseContract.NewDataInfo.COL_NUMBER, eNumber);
contentValues.put(DatabaseContract.NewDataInfo.COL_POTICULLIS, ePoticullis);
contentValues.put(DatabaseContract.NewDataInfo.COL_CHEVAL_FRISE, eChevalFrise);
contentValues.put(DatabaseContract.NewDataInfo.COL_MOAT, eMoat);
contentValues.put(DatabaseContract.NewDataInfo.COL_RAMPARTS, eRamparts);
contentValues.put(DatabaseContract.NewDataInfo.COL_DRAWBRIDGE, eDrawbridge);
contentValues.put(DatabaseContract.NewDataInfo.COL_SALLY_PORT, eSallyPort);
contentValues.put(DatabaseContract.NewDataInfo.COL_ROCK_WALL, eRockWall);
contentValues.put(DatabaseContract.NewDataInfo.COL_ROCK_TERRAIN, eRockTerrain);
contentValues.put(DatabaseContract.NewDataInfo.COL_LOW_BAR, eLowBar);
//Insert content values into table
db.insert(DatabaseContract.NewDataInfo.TABLE_NAME, null, contentValues);
//Display log message
Log.e("DATABASE OPERATIONS", "One row inserted...");
} //End of addInformation
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
} //End of onUpgrade
} //End of class
DatabaseContract.java
public class DatabaseContract {
public static abstract class NewDataInfo {
public static final String TABLE_NAME = "scout_table";
public static final String COL_NUMBER = "TEAM NUMBER";
public static final String COL_POTICULLIS = "POTICULLIS";
public static final String COL_CHEVAL_FRISE = "CHEVAL DE FRISE";
public static final String COL_MOAT = "MOAT";
public static final String COL_RAMPARTS = "RAMPARTS";
public static final String COL_DRAWBRIDGE = "DRAWBRIDGE";
public static final String COL_SALLY_PORT = "SALLY PORT";
public static final String COL_ROCK_WALL = "ROCK WALL";
public static final String COL_ROCK_TERRAIN = "ROCK TERRAIN";
public static final String COL_LOW_BAR = "LOW BAR";
} //End of NewDataInfo
} //End of class
记录错误
Process: com.compscitutorials.basigarcia.ramfernoscout, PID: 1861
android.database.sqlite.SQLiteException: AUTOINCREMENT is only allowed on an INTEGER PRIMARY KEY (code 1): , while compiling: CREATE TABLE scout_table(TEAM NUMBER INTEGER PRIMARY KEY AUTOINCREMENT,POTICULLIS TEXT,CHEVAL DE FRISE TEXT,MOAT TEXT,RAMPARTS TEXT,DRAWBRIDGE TEXT,SALLY PORT TEXT,ROCK WALL TEXT,ROCK TERRAIN TEXT,LOW BARTEXT);
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.executeSql(SQLiteDatabase.java:1674)
at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1605)
at com.compscitutorials.basigarcia.ramfernoscout.DatabaseHelper.onCreate(DatabaseHelper.java:26)
at android.database.sqlite.SQLiteOpenHelper.getDatabaseLocked(SQLiteOpenHelper.java:251)
at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:163)
at com.compscitutorials.basigarcia.ramfernoscout.AddScoutDataFragment.addScoutInfo(AddScoutDataFragment.java:96)
at com.compscitutorials.basigarcia.ramfernoscout.AddScoutDataFragment$1.onClick(AddScoutDataFragment.java:55)
at android.view.View.performClick(View.java:5198)
at android.view.View$PerformClick.run(View.java:21147)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
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)
答案 0 :(得分：0)
冲突的名称DatabaseContract.java是导致此问题的原因。将名称更改为
public class DatabaseContract {
public static abstract class NewDataInfo {
public static final String TABLE_NAME = "scout_table";
public static final String COL_NUMBER = "TEAM_NUMBER";
public static final String COL_POTICULLIS = "POTICULLIS";
public static final String COL_CHEVAL_FRISE = "CHEVAL_DE_FRISE";
public static final String COL_MOAT = "MOAT";
public static final String COL_RAMPARTS = "RAMPARTS";
public static final String COL_DRAWBRIDGE = "DRAWBRIDGE";
public static final String COL_SALLY_PORT = "SALLY_PORT";
public static final String COL_ROCK_WALL = "ROCK_WALL";
public static final String COL_ROCK_TERRAIN = "ROCK_TERRAIN";
public static final String COL_LOW_BAR = "LOW_BAR";
} //End of NewDataInfo
} //End of class
同样从代码中删除AutoIncrement并保持整数，因为编号无关紧要
DatabaseContract.NewDataInfo.COL_NUMBER + " INTEGER,"