我不明白为什么没有这样的表,即使我已经通过编码创建了它。任何人都知道为什么并且可以帮助解决这个问题?
07-11 13:41:59.335:I / Database(288):sqlite返回:错误代码= 1,msg =没有这样的表:personalInfo
07-11 13:41:59.345:E /数据库(288):插入不喜欢的错误=瑜伽类型=结婚日期= 15/10 / 2017 likes = Prawning name = Joanne Liew
package main.page;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.provider.BaseColumns;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.Toast;
public class InfoDBAdapter
{
public static final String KEY_ROWID = "_id";
public static final String KEY_NAME = "name";
public static final String KEY_DATE = "date";
public static final String KEY_TYPE = "type";
public static final String KEY_LIKES = "likes";
public static final String KEY_DISLIKES = "dislikes";
private static final String TAG = "InfoDBAdapter";
private static final String DATABASE_NAME = "AnniversaryDB";
private static final String DATABASE_TABLE = "personalInfo";
private static final int DATABASE_VERSION = 2;
private static final String DATABASE_CREATE = "create table personalInfo (_id integer primary key autoincrement, "
+ "name text not null, date text not null, type text not null, likes text not null, dislikes text not null);";
private final Context context;
private DatabaseHelper DBHelper;
private SQLiteDatabase db;
public InfoDBAdapter(Context ctx)
{
this.context = ctx;
DBHelper = new DatabaseHelper(context);
}
private static class DatabaseHelper extends SQLiteOpenHelper
{
DatabaseHelper(Context context)
{
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db)
{
try
{
db.execSQL(DATABASE_CREATE);
} catch (SQLException e)
{
e.printStackTrace();
}
}// end onCreate()
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion)
{
Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
+ newVersion + ", which will destroy all old data");
db.execSQL("DROP TABLE IF EXISTS info");
onCreate(db);
}// end onUpgrade()
}// end DatabaseHelper
// ---opens the database---
public InfoDBAdapter open() throws SQLException
{
db = DBHelper.getWritableDatabase();
return this;
}// end open()
// ---closes the database---
public void close()
{
DBHelper.close();
}// end close()
// ---insert a contact into the database---
public long insertContact(String name, String date, String type, String likes, String dislikes)
{
ContentValues initialValues = new ContentValues();
initialValues.put(KEY_NAME, name);
initialValues.put(KEY_DATE, date);
initialValues.put(KEY_TYPE, type);
initialValues.put(KEY_LIKES, likes);
initialValues.put(KEY_DISLIKES, dislikes);
return db.insert(DATABASE_TABLE, null, initialValues);
}// end insertContact()
// ---deletes a particular contact---
public boolean deleteContact(long rowId)
{
return db.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowId, null) > 0;
}// end deleteContact()
// ---retrieves all the contacts---
public Cursor getAllContacts()
{
return db.query(DATABASE_TABLE, new String[]
{ KEY_ROWID, KEY_NAME, KEY_DATE, KEY_TYPE, KEY_LIKES, KEY_DISLIKES }, null, null, null, null, null);
}// end getAllContacts()
// ---retrieves a particular contact---
public Cursor getContact(long rowId) throws SQLException
{
Cursor mCursor = db.query(true, DATABASE_TABLE, new String[] {
KEY_ROWID, KEY_NAME, KEY_DATE, KEY_TYPE, KEY_LIKES, KEY_DISLIKES }, KEY_ROWID + "=" + rowId,
null, null, null, null, null);
if (mCursor != null)
{
mCursor.moveToFirst();
}
return mCursor;
}// end getContact()
// ---updates a contact---
public boolean updateContact(long rowId, String name, String date, String type, String likes, String dislikes)
{
ContentValues args = new ContentValues();
args.put(KEY_NAME, name);
args.put(KEY_DATE, date);
args.put(KEY_TYPE, type);
args.put(KEY_LIKES, likes);
args.put(KEY_DISLIKES, dislikes);
return db.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0;
}// end updateContact()
}//end DBAdapter
package main.page;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
public class PersonalInfo extends Activity
{
Button btnSave, btnBack;
EditText txtDate, txtType, txtLikes, txtDislikes;
Spinner nameSpinner;
ArrayAdapter<String>adapter;
String names[] = {"Kanak Priya", "Joanne Liew", "Michelle Lam", "Natasha Akhbar", "Joan Tang", "Teo Kin Hua", "David Yeo"};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.info);
/*try{
String destPath = "/data/data" + getPackageName() +
"/databases/AnniversaryDB";
File f = new File(destPath);
if(!f.exists())
{
CopyDB(getBaseContext().getAssets().open("AnniversaryDB"),
new FileOutputStream(destPath));
}
}catch (FileNotFoundException e)
{
e.printStackTrace();
}catch (IOException e)
{
e.printStackTrace();
}*/
InfoDBAdapter dbInfo = new InfoDBAdapter(this);
dbInfo.open();
long id = dbInfo.insertContact("Kanak Priya", "24/6/1990", "Birthday", "Painting", "Bungee jumping");
id = dbInfo.insertContact("Joanne Liew", "15/8/1990", "Birthday", "Skating", "Yoga");
dbInfo.close();
/*//---get all contacts--
dbInfo.open();
Cursor c = dbInfo.getAllContacts();
if (c.moveToFirst())
{
do
{
DisplayContact(c);
} while (c.moveToNext());
}
dbInfo.close();*/
Spinner nameSpinner = (Spinner) findViewById(R.id.nameSpinner);
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, names);
nameSpinner.setAdapter(adapter);
Button btnSave = (Button) findViewById(R.id.btnSave);
btnSave.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
Spinner nameSpinner = (Spinner) findViewById(R.id.nameSpinner);
EditText txtDate = (EditText) findViewById(R.id.txtDate);
EditText txtType = (EditText) findViewById(R.id.txtType);
EditText txtLikes = (EditText) findViewById(R.id.txtLikes);
EditText txtDislikes = (EditText) findViewById(R.id.txtDislikes);
Toast.makeText(getBaseContext(),
"Your info is saved successfully!",
Toast.LENGTH_SHORT).show();
}
});
Button btnBack = (Button) findViewById(R.id.btnMain);
btnBack.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View arg0)
{
finish();
}
});
}// end onCreate()
/*public void CopyDB(InputStream inputStream,
OutputStream outputStream)
throws IOException
{
//---copy 1K bytes at a time---
byte[] buffer = new byte[1024];
int length;
while ((length = inputStream.read(buffer)) > 0)
{
outputStream.write(buffer, 0, length);
}
inputStream.close();
outputStream.close();
}*/
/*public void DisplayContact(Cursor c)
{
Toast.makeText(
this,
"id: " + c.getString(0) + "\n" + "Name: " + c.getString(1)
+ "\n" + "Date: " + c.getString(2) + "\n" + "Type: " + c.getString(3) + "\n" + "Likes: " + c.getString(4)
+ "\n" + "Dislikes: " + c.getString(5), Toast.LENGTH_LONG)
.show();
}*/
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
style="@style/InfoStyle"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/fName"
style="@style/InfoStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Full Name"
android:textAppearance="?android:attr/textAppearanceMedium" />
<Spinner
android:id="@+id/nameSpinner"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<requestFocus />
</Spinner>
<TextView
android:id="@+id/date"
style="@style/InfoStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Date"
android:textAppearance="?android:attr/textAppearanceMedium" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<EditText
android:id="@+id/txtDate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:ems="10"
android:inputType="date" />
</RelativeLayout>
<TextView
android:id="@+id/type"
style="@style/InfoStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Type"
android:textAppearance="?android:attr/textAppearanceMedium" />
<EditText
android:id="@+id/txtType"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10" />
<TextView
android:id="@+id/bow"
style="@style/InfoStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="birthday or wedding"
android:textAppearance="?android:attr/textAppearanceSmall" />
<TextView
android:id="@+id/likes"
style="@style/InfoStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Likes"
android:textAppearance="?android:attr/textAppearanceMedium" />
<AutoCompleteTextView
android:id="@+id/txtLikes"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:gravity="top" />
<TextView
android:id="@+id/dislikes"
style="@style/InfoStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Dislikes"
android:textAppearance="?android:attr/textAppearanceMedium" />
<AutoCompleteTextView
android:id="@+id/txtDislikes"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:gravity="top" />
<Button
android:id="@+id/btnSave"
style="@style/main_menu"
android:layout_width="109dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:background="@drawable/red_btn_info"
android:text="Save" />
<Button
android:id="@+id/btnMain"
style="@style/main_menu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/red_btn_info"
android:text="Main Menu" />
</LinearLayout>
答案 0 :(得分:0)
构建目标2.1没有错误。我能够插入到DB中,使用allContacts()
方法检查插入的信息。你提供了最新的代码吗?我没有在View.onClickListener()
答案 1 :(得分:0)
我不认为在onCreate()中创建表是对的。所以表格还没有创建。
你应该在databasehelper中的一个独特的函数中创建你的表:
/**
* create database if it's not existed
*
* @throws IOException
* */
public void createDataBase() {
并确保在调用createDataBase();
之前打开