好吧，我要做的是在第一次安装时点击我的应用程序。因此，在第一次访问时，我的应用程序有一个访问CallLog的服务，并检索所有数据并插入应用程序数据库。
我有一个列timestamp_，我希望插入调用的时间戳。但是当我尝试插入它时，表示该表没有名为timestamp_的列，并且它是明确写在sql string中的这个列的名称。我不知道为什么会这样做。
我的CREATE TABLE字符串写在strings.xml中，我访问此字符串并将其拆分为每行。
以下是Service的代码，SQL String，以及DataHandlerDB的代码之后，它具有创建DB的方法。
我的服务：
package com.myapp.test;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.rogercg.phonestatistics.CallDataHelper.OpenHelper;
import android.app.Service;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.database.ContentObserver;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.os.IBinder;
import android.provider.Contacts;
import android.text.format.DateFormat;
import android.util.Log;
import android.widget.Toast;
public class RatedCallsService extends Service {
private static final String LOG_TAG = "RatedCallsService";
private Handler handler = new Handler();
private SQLiteDatabase db;
private OpenHelper helper;
private String theDate;
private String theMonth_;
private String theYear_;
private String theDay_;
public static boolean servReg = false;
class RatedCallsContentObserver extends ContentObserver {
public RatedCallsContentObserver(Handler h) {
super(h);
helper = new OpenHelper(getApplicationContext());
db = helper.getWritableDatabase();
Log.i(LOG_TAG, "constructor");
}
@Override
public boolean deliverSelfNotifications() {
Log.i(LOG_TAG, "deliver self");
return true;
}
@Override
public void onChange(boolean selfChange) {
super.onChange(selfChange);
Log.i(LOG_TAG, "selfchange " + selfChange);
searchInsert();
}
}
@Override
public void onCreate() {
servReg = true;
helper = new OpenHelper(getApplicationContext());
db = DataHandlerDB.createDB(this);
registerContentObserver();
Cursor dbsize = DataHandlerDB.selectTopCalls(this
.getApplicationContext());
if (dbsize.getCount() == 0) {
Toast.makeText(this.getApplicationContext(), "Updating Database.",
Toast.LENGTH_LONG).show();
Log.i(LOG_TAG, "Atualizou " + dbsize.getCount());
updateDB();
}
Cursor currsize = DataHandlerDB.selectTopCalls(this
.getApplicationContext());
currsize.moveToFirst();
Log.i(LOG_TAG, "cursize " + currsize.getCount());
}
@Override
public void onDestroy() {
super.onDestroy();
db.close();
this.getApplicationContext()
.getContentResolver()
.unregisterContentObserver(
new RatedCallsContentObserver(handler));
servReg = false;
}
@Override
public IBinder onBind(Intent arg0) {
return null;
}
protected void searchInsert() {
Cursor cursor = getContentResolver().query(
android.provider.CallLog.Calls.CONTENT_URI, null, null, null,
android.provider.CallLog.Calls.DATE + " DESC ");
if (cursor.moveToFirst()) {
int numberColumnId = cursor
.getColumnIndex(android.provider.CallLog.Calls.NUMBER);
int durationId = cursor
.getColumnIndex(android.provider.CallLog.Calls.DURATION);
int contactNameId = cursor
.getColumnIndex(android.provider.CallLog.Calls.CACHED_NAME);
int numTypeId = cursor
.getColumnIndex(android.provider.CallLog.Calls.CACHED_NUMBER_TYPE);
int callTypeId = cursor
.getColumnIndex(android.provider.CallLog.Calls.TYPE);
int dateColumnId = cursor
.getColumnIndex(android.provider.CallLog.Calls.DATE);
Date dt = new Date();
int hours = dt.getHours();
int minutes = dt.getMinutes();
int seconds = dt.getSeconds();
String currTime = hours + ":" + minutes + ":" + seconds;
SimpleDateFormat dateFormat = new SimpleDateFormat("M/d/yyyy");
Date date = new Date();
cursor.moveToFirst();
String contactNumber = cursor.getString(numberColumnId);
String contactName = (null == cursor.getString(contactNameId) ? ""
: cursor.getString(contactNameId));
String duration = cursor.getString(durationId);
String numType = cursor.getString(numTypeId);
String callType = cursor.getString(callTypeId);
String dateColumn = cursor.getString(dateColumnId);
seconds = Integer.parseInt(duration);
theDate = dateFormat.format(date);
if (theDate.length() == 9) {
theMonth_ = theDate.substring(0, 1);
theDay_ = theDate.substring(2, 4);
theYear_ = theDate.substring(5, 9);
} else if (theDate.length() == 10) {
theMonth_ = theDate.substring(0, 2);
theDay_ = theDate.substring(3, 4);
theYear_ = theDate.substring(6, 10);
} else if (theDate.length() == 8) {
theMonth_ = theDate.substring(0, 1);
theDay_ = theDate.substring(2, 3);
theYear_ = theDate.substring(4, 8);
}
ContentValues values = new ContentValues();
ContentValues values2 = new ContentValues();
values.put("contact_id", 1);
values.put("contact_name", contactName);
values.put("number_type", numType);
values.put("contact_number", contactNumber);
values.put("duration", Utilities.convertTime(seconds));
values.put("date", dateFormat.format(date));
values.put("timestamp_", dateColumn);
values.put("current_time", currTime);
values.put("cont", 1);
values.put("type", callType);
values2.put("month",
Utilities.monthName(Integer.parseInt(theMonth_)));
values2.put("duration", Utilities.convertTime(seconds));
values2.put("year", theYear_);
values2.put("month_num", Integer.parseInt(theMonth_));
if (!db.isOpen()) {
db = getApplicationContext()
.openOrCreateDatabase(
"/data/data/com.myapp.test/databases/calls.db",
SQLiteDatabase.OPEN_READWRITE, null);
}
if (duration != "") {
if (Integer.parseInt(duration) != 0) {
String existingMonthDuration = DataHandlerDB
.selectMonthsDuration(theMonth_, theYear_, this);
Integer newMonthDuration;
// Verifica se ja existe mes no MONTHS_DUR
if (existingMonthDuration != "") {
newMonthDuration = Integer
.parseInt(existingMonthDuration)
+ Integer.parseInt(duration);
values2.put("duration",
Utilities.convertTime(newMonthDuration));
db.update(DataHandlerDB.MONTHS_DUR, values2,
"year = ?", new String[] { theYear_ });
} else {
db.insert(DataHandlerDB.MONTHS_DUR, null, values2);
}
Cursor c = DataHandlerDB.selectTimeStamp(this
.getApplicationContext());
if (c.moveToFirst()) {
Log.i(LOG_TAG, "c.getstr8: " + c.getString(8));
if (!c.getString(8).equals(dateColumn)) {
Log.i(LOG_TAG, "Antes do db.insert line 202");
db.insert(DataHandlerDB.CONTACT_DATA, null, values);
}
}
}
}
cursor.close();
}
}
protected void updateDB() {
Cursor cursor = getContentResolver().query(
android.provider.CallLog.Calls.CONTENT_URI, null, null, null,
null);
cursor.moveToFirst();
do {
int numberColumnId = cursor
.getColumnIndex(android.provider.CallLog.Calls.NUMBER);
int durationId = cursor
.getColumnIndex(android.provider.CallLog.Calls.DURATION);
int contactNameId = cursor
.getColumnIndex(android.provider.CallLog.Calls.CACHED_NAME);
int numTypeId = cursor
.getColumnIndex(android.provider.CallLog.Calls.CACHED_NUMBER_TYPE);
int callTypeId = cursor
.getColumnIndex(android.provider.CallLog.Calls.TYPE);
int dateColumnId = cursor
.getColumnIndex(android.provider.CallLog.Calls.DATE);
Date dt = new Date();
int hours = dt.getHours();
int minutes = dt.getMinutes();
int seconds = dt.getSeconds();
String currTime = hours + ":" + minutes + ":" + seconds;
SimpleDateFormat dateFormat = new SimpleDateFormat("M/d/yyyy");
Date date = new Date();
String contactNumber = cursor.getString(numberColumnId);
String contactName = (null == cursor.getString(contactNameId) ? ""
: cursor.getString(contactNameId));
String duration = cursor.getString(durationId);
String numType = cursor.getString(numTypeId);
String callType = cursor.getString(callTypeId);
String dateColumn = cursor.getString(dateColumnId);
seconds = Integer.parseInt(duration);
theDate = dateFormat.format(date);
if (theDate.length() == 9) {
theMonth_ = theDate.substring(0, 1);
theDay_ = theDate.substring(2, 4);
theYear_ = theDate.substring(5, 9);
} else if (theDate.length() == 10) {
theMonth_ = theDate.substring(0, 2);
theDay_ = theDate.substring(3, 4);
theYear_ = theDate.substring(6, 10);
} else if (theDate.length() == 8) {
theMonth_ = theDate.substring(0, 1);
theDay_ = theDate.substring(2, 3);
theYear_ = theDate.substring(4, 8);
}
ContentValues values = new ContentValues();
ContentValues values2 = new ContentValues();
values.put("contact_id", 1);
values.put("contact_name", contactName);
values.put("number_type", numType);
values.put("contact_number", contactNumber);
values.put("duration", Utilities.convertTime(seconds));
values.put("date", dateFormat.format(date));
values.put("timestamp_", dateColumn);
values.put("current_time", currTime);
values.put("cont", 1);
values.put("type", callType);
values2.put("month",
Utilities.monthName(Integer.parseInt(theMonth_)));
values2.put("duration", Utilities.convertTime(seconds));
values2.put("year", theYear_);
values2.put("month_num", Integer.parseInt(theMonth_));
if (!db.isOpen()) {
db = getApplicationContext()
.openOrCreateDatabase(
"/data/data/com.myapp.test/databases/calls.db",
SQLiteDatabase.OPEN_READWRITE, null);
}
if (duration != "") {
if (Integer.parseInt(duration) != 0) {
String existingMonthDuration = DataHandlerDB
.selectMonthsDuration(theMonth_, theYear_, this);
Integer newMonthDuration;
// Verifica se ja existe mes no MONTHS_DUR
if (existingMonthDuration != "") {
newMonthDuration = Integer
.parseInt(existingMonthDuration)
+ Integer.parseInt(duration);
values2.put("duration",
Utilities.convertTime(newMonthDuration));
db.update(DataHandlerDB.MONTHS_DUR, values2,
"year = ?", new String[] { theYear_ });
} else {
db.insert(DataHandlerDB.MONTHS_DUR, null, values2);
}
db.insert(DataHandlerDB.CONTACT_DATA, null, values);
}
}
} while (cursor.moveToNext());
cursor.close();
}
public void registerContentObserver() {
Log.i(LOG_TAG, "Registrou ContentObserver");
this.getApplicationContext()
.getContentResolver()
.registerContentObserver(
android.provider.CallLog.Calls.CONTENT_URI, true,
new RatedCallsContentObserver(handler));
}
}
我的DataHandlerDB。（与数据库交易）：
public class DataHandlerDB {
private static final String DATABASE_NAME = "calls.db";
private static final int DATABASE_VERSION = 1;
protected static final String RATED_CONTACTS = "rated_contacts";
protected static final String CONTACT_DATA = "contact_data";
protected static final String MONTHS_DUR = "months_dur";
private static final String LOG_TAG = "DataHandlerDB";
protected static String CONTACT__ID_COL = "_id";
protected static String CONTACT_NAME_COL = "contact_name";
protected static String CONTACT_NUMBER_COL = "contact_number";
protected static String CONTACT_DURATION_COL = "duration";
protected static String CONTACT_DATE_COL = "date";
protected static String CONTACT_MONTH_COL = "month";
// create the DB
public static SQLiteDatabase createDB(Context ctx) {
OpenHelper helper = new OpenHelper(ctx);
SQLiteDatabase db = helper.getWritableDatabase();
helper.onCreate(db);
helper.onOpen(db);
db.close();
return db;
}
public static class OpenHelper extends SQLiteOpenHelper {
private final Context mContext;
OpenHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
this.mContext = context;
}
@Override
public void onCreate(SQLiteDatabase db) {
String[] sql = mContext.getString(
R.string.My_OnCreate).split("\n");
db.beginTransaction();
try {
Log.i(LOG_TAG, "entrou no try");
execMultipleSQL(db, sql);
db.setTransactionSuccessful();
} catch (SQLException e) {
Log.e("Error creating tables and debug data ", e.toString());
throw e;
} finally {
db.endTransaction();
}
}
private void execMultipleSQL(SQLiteDatabase db, String[] sql) {
for (String s : sql) {
if (s.trim().length() > 0) {
db.execSQL(s);
Log.i(LOG_TAG, "Str sql " + s);
}
}
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
/*
* Log.w("RatedContacts Database",
* "Upgrading database, this will drop tables and recreate.");
* db.execSQL("DROP TABLE IF EXISTS " + RATED_CONTACTS); onCreate(db);
*/
}
@Override
public void onOpen(SQLiteDatabase db) {
super.onOpen(db);
}
}
}
SQL字符串（在strings.xml中声明）：
<string name="My_OnCreate">
"CREATE TABLE IF NOT EXISTS contact_data ( _id INTEGER PRIMARY KEY AUTOINCREMENT, contact_id INTEGER, contact_name VARCHAR(50), number_type VARCHAR(50), contact_number VARCHAR(50), duration TIME, duration_sum TIME, date DATE, timestamp_ VARCHAR(50), current_time TIME, cont INTEGER, type VARCHAR(50), month VARCHAR(50), day VARCHAR(50), year VARCHAR(50) );
CREATE TABLE IF NOT EXISTS rated_contacts ( _id INTEGER PRIMARY KEY AUTOINCREMENT, contact_id INTEGER, contact_name VARCHAR(50), number_type VARCHAR(50), contact_number VARCHAR(50), duration TIME, duration_sum TIME, date DATE, timestamp_ VARCHAR(50), current_time TIME, cont INTEGER, type VARCHAR(50), month VARCHAR(50), day VARCHAR(50), year VARCHAR(50) );
CREATE TABLE IF NOT EXISTS months_dur ( _id INTEGER PRIMARY KEY AUTOINCREMENT, month VARCHAR(50), duration TIME, year VARCHAR(250), month_num INTEGER );"
</string>
以下是LogCat的错误：
06-13 18：58：05.041： INFO /数据库（2121）：sqlite返回： 错误代码= 1，msg =表 contact_data没有列名 timestamp_
06-13 18：58：05.081： 错误/数据库（2121）：插入错误 contact_number = 1234545 duration = 00：00：05 contact_id = 1 timestamp_ = 1307928304514 number_type = 0 contact_name = current_time = 18：58：4 type = 2 cont = 1 date = 6/13/2011 06-13 18：58：05.081：
ERROR /数据库（2121）： android.database.sqlite.SQLiteException： table contact_data没有列名 timestamp_ :,同时编译：INSERT INTO contact_data（contact_number， duration，contact_id，timestamp_， number_type，contact_name， current_time，type，cont，date） 价值观（？，？，？，？，？，？，？，？，？，？）;
答案 0 :(得分：1)
我认为这是Java和SQLite之间绑定代码中的错误。您可以尝试将“timestamp_”重命名为“time_stamp”，以进行测试吗？