我想从com.android.browser中检索浏览器历史记录并将其保存到sdcard中的文件中。我能够为联系人做soo而不是浏览器历史。不知道出了什么问题。它们仅提示错误 绑定或列索引超出范围：handle 0x27a6d0 。
该文件的最佳格式是xml，txt或??
这些是我的代码
package fypj.ReadContacts;
import android.app.Activity;
import android.os.Bundle;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import android.app.Activity;
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.Browser;
import android.provider.Browser.BookmarkColumns;
import android.provider.ContactsContract;
import android.util.Log;
import android.widget.TextView;
import android.provider.ContactsContract.CommonDataKinds.StructuredPostal;
public class ReadContacts extends Activity {
// To suppress notational clutter and make structure clearer, define some shorthand constants.
private static final Uri URI = ContactsContract.Contacts.CONTENT_URI;
private static final Uri PURI = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
private static final Uri EURI = ContactsContract.CommonDataKinds.Email.CONTENT_URI;
private static final Uri AURI = ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_URI;
private static final String ID = ContactsContract.Contacts._ID;
private static final String DNAME = ContactsContract.Contacts.DISPLAY_NAME;
private static final String HPN = ContactsContract.Contacts.HAS_PHONE_NUMBER;
private static final String LOOKY = ContactsContract.Contacts.LOOKUP_KEY;
private static final String CID = ContactsContract.CommonDataKinds.Phone.CONTACT_ID;
private static final String EID = ContactsContract.CommonDataKinds.Email.CONTACT_ID;
private static final String AID = ContactsContract.CommonDataKinds.StructuredPostal.CONTACT_ID;
private static final String PNUM = ContactsContract.CommonDataKinds.Phone.NUMBER;
private static final String PHONETYPE = ContactsContract.CommonDataKinds.Phone.TYPE;
private static final String EMAIL = ContactsContract.CommonDataKinds.Email.DATA;
private static final String EMAILTYPE = ContactsContract.CommonDataKinds.Email.TYPE;
private static final String STREET = ContactsContract.CommonDataKinds.StructuredPostal.STREET;
private static final String CITY = ContactsContract.CommonDataKinds.StructuredPostal.CITY;
private static final String STATE = ContactsContract.CommonDataKinds.StructuredPostal.REGION;
private static final String POSTCODE = ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE;
private static final String COUNTRY = ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY;
private static final Uri URI1 = android.provider.Browser.BOOKMARKS_URI;
private static final String bHistoryTITLE = Browser.BookmarkColumns.TITLE;
private static final String bHistoryURL = Browser.BookmarkColumns.URL;
private static final String bHistoryBOOKMARK = Browser.BookmarkColumns.BOOKMARK;
private static final String bHistoryVISITS = Browser.BookmarkColumns.VISITS;
private static final String ID1 = Browser.BookmarkColumns._ID ;
//private static final String BID = Browser.BookmarkColumns.
//private static final String DNAME = Browser.BookmarkColumns.DISPLAY_NAME;
//private static final String HPN = ContactsContract.Contacts.HAS_PHONE_NUMBER;
//private static final String LOOKY = Browser.BookmarkColumns.LOOKUP_KEY;
private String id;
private String lookupKey;
private String name;
private String street;
private String city;
private String state;
private String postcode;
private String country;
private String ph[];
private String phType[];
private String em[];
private String emType[];
private String id1;
private String URL;
private String BTitle;
private String BURL;
private String BBOOKMARK;
private String BVISITS;
private String browserTITLE[];
private String browserURL[];
private String browserBOOKMARK[];
private String browserVISITS[];
private File root;
private int emcounter;
private int phcounter;
private int addcounter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Check that external media available and writable
checkExternalMedia();
Contacts();
browser();
}
/** Method to check whether external media available and writable and to find the
root of the external file system. */
private void checkExternalMedia () {
// Check external media availability. This is adapted from
// http://developer.android.com/guide/topics/data/data-storage.html#filesExternal
boolean mExternalStorageAvailable = false;
boolean mExternalStorageWriteable = false;
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_MOUNTED.equals(state)) {
// We can read and write the media
mExternalStorageAvailable = mExternalStorageWriteable = true;
} else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
// We can only read the media
mExternalStorageAvailable = true;
mExternalStorageWriteable = false;
} else {
// Can't read or write
mExternalStorageAvailable = mExternalStorageWriteable = false;
}
// Find the root of the external storage and output external storage info to screen
root = android.os.Environment.getExternalStorageDirectory();
}
public void Contacts(){
// Allow for up to 5 email and phone entries for a contact
em = new String[5];
emType = new String[5];
ph = new String[5];
phType = new String[5];
/** Open a PrintWriter wrapping a FileOutputStream so that we can send output from a
query of the Contacts database to a file on the SD card. Must wrap the whole thing
in a try-catch to catch file not found and i/o exceptions. Note that since we are writing
to external media we must add a WRITE_EXTERNAL_STORAGE permission to the
manifest file. Otherwise a FileNotFoundException will be thrown. */
// This will set up output to /sdcard/download/phoneData.txt if /sdcard is the root of
// the external storage. See the project WriteSDCard for more information about
// writing to a file on the SD card.
File dir = new File (root.getAbsolutePath() + "/download");
dir.mkdirs();
//File file = new File(dir, "phoneData.rtf");
File file = new File(dir, "phoneData.accdb");
try{
FileOutputStream f = new FileOutputStream(file);
PrintWriter pw = new PrintWriter(f);
// Main loop to query the contacts database, extracting the information. See
// http://www.higherpass.com/Android/Tutorials/Working-With-Android-Contacts/
ContentResolver cr = getContentResolver();
Cursor cu = cr.query(URI, null, null, null, null);
if (cu.getCount() > 0) {
// Loop over all contacts
while (cu.moveToNext()) {
// Initialize storage variables for the new contact
street = "";
city = "";
state = "";
postcode = "";
country = "";
// Get ID information (id, name and lookup key) for this contact. id is an identifier
// number, name is the name associated with this row in the database, and
// lookupKey is an opaque value that contains hints on how to find the contact
// if its row id changed as a result of a sync or aggregation.
id = cu.getString(cu.getColumnIndex(ID));
name = cu.getString(cu.getColumnIndex(DNAME));
lookupKey = cu.getString(cu.getColumnIndex(LOOKY));
// Append list of contacts to the scrollable TextView on the screen.
// Query phone numbers for this contact (may be more than one), so use a
// while-loop to move the cursor to the next row until moveToNext() returns
// false, indicating no more rows. Store the results in arrays since there may
// be more than one phone number stored per contact. The if-statement
// enclosing everything ensures that the contact has at least one phone
// number stored in the Contacts database.
phcounter = 0;
if (Integer.parseInt(cu.getString(cu.getColumnIndex(HPN))) > 0) {
Cursor pCur = cr.query(PURI, null, CID + " = ?", new String[]{id}, null);
while (pCur.moveToNext()) {
ph[phcounter] = pCur.getString(pCur.getColumnIndex(PNUM));
phType[phcounter] = pCur.getString(pCur.getColumnIndex(PHONETYPE));
phcounter ++;
}
pCur.close();
}
// Query email addresses for this contact (may be more than one), so use a
// while-loop to move the cursor to the next row until moveToNext() returns
// false, indicating no more rows. Store the results in arrays since there may
// be more than one email address stored per contact.
emcounter = 0;
Cursor emailCur = cr.query(EURI, null, EID + " = ?", new String[]{id}, null);
while (emailCur.moveToNext()) {
em[emcounter] = emailCur.getString(emailCur.getColumnIndex(EMAIL));
emType[emcounter] = emailCur.getString(emailCur.getColumnIndex(EMAILTYPE));
emcounter ++;
}
emailCur.close();
// Query Address (assume only one address stored for simplicity). If there is
// more than one address we loop through all with the while-loop but keep
// only the last one.
addcounter = 0;
Cursor addCur = cr.query(AURI, null, AID + " = ?", new String[]{id}, null);
while (addCur.moveToNext()) {
street = addCur.getString(addCur.getColumnIndex(STREET));
city = addCur.getString(addCur.getColumnIndex(CITY));
state = addCur.getString(addCur.getColumnIndex(STATE));
postcode = addCur.getString(addCur.getColumnIndex(POSTCODE));
country = addCur.getString(addCur.getColumnIndex(COUNTRY));
addcounter ++;
}
addCur.close();
// Write identifiers for this contact to the SD card file
//pw.println(name+" ID="+id+" LOOKUP_KEY="+lookupKey);
pw.println(name);
// Write list of phone numbers for this contact to SD card file
for(int i=0; i<phcounter; i++){
//pw.println(" phone="+ ph[i]+" type="+phType[i] + " ("
//+ getPhoneType(phType[i]) + ") ");
pw.println(" phone="+ ph[i]+" ("
+ getPhoneType(phType[i]) + ") ");
}
// Write list of email addresses for this contact to SD card file
for(int i=0; i<emcounter; i++){
pw.println(" email="+ em[i]+" type="+emType[i] + " ("
+ getEmailType(emType[i]) + ") ");
}
// If street address is stored for contact, write it to SD card file
if(addcounter > 0){
if(street != null) pw.println(" street="+street);
if(city != null) pw.println(" city="+city);
if(state != null) pw.println(" state/region="+state);
if(postcode != null) pw.println(" postcode="+postcode);
if(country != null) pw.println(" country="+country);
}
}
}
// Flush the PrintWriter to ensure everything pending is output before closing
pw.flush();
pw.close();
f.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
Log.i("MEDIA", "*************** File not found. Did you" +
" add a WRITE_EXTERNAL_STORAGE permission to the manifest file? ");
} catch (IOException e) {
e.printStackTrace();
}
}
/** Method to return label corresponding to phone type code. Data for correspondence from
http://developer.android.com/reference/android/provider/ContactsContract.CommonDataKinds.Phone.html */
private String getPhoneType(String index){
if(index.trim().equals( "1")){
return "home";
} else if (index.trim().equals("2")){
return "mobile";
} else if (index.trim().equals("3")){
return "work";
} else if (index.trim().equals("7")){
return "other";
} else {
return "?";
}
}
/** Method to return label corresponding to email type code. Data for correspondence from
http://developer.android.com/reference/android/provider/ContactsContract.
CommonDataKinds.Email.html */
private String getEmailType(String index){
if(index.trim().equals( "1")){
return "home";
} else if (index.trim().equals("2")){
return "work";
} else if (index.trim().equals("3")){
return "other";
} else if (index.trim().equals("4")){
return "mobile";
} else {
return "?";
}
}
public void browser(){
//create file
File dir = new File (root.getAbsolutePath() + "/DATASTOREAGE");
dir.mkdirs();
File file = new File(dir, "browserHistory.rtf");
try{
FileOutputStream f = new FileOutputStream(file);
PrintWriter pw = new PrintWriter(f);
// Main loop to query the contacts database, extracting the information. See
// http://www.higherpass.com/Android/Tutorials/Working-With-Android-Contacts/
ContentResolver cr = getContentResolver();
Cursor cu = cr.query(URI1, null, null, null, null);
if (cu.getCount() > 0) {
// Loop over all contacts
while (cu.moveToNext()) {
// Initialize storage variables for the new contact
BTitle = "";
BURL = "";
BBOOKMARK = "";
BVISITS = "";
// Get ID information (id, name and lookup key) for this contact. id is an identifier
// number, name is the name associated with this row in the database, and
// lookupKey is an opaque value that contains hints on how to find the contact
// if its row id changed as a result of a sync or aggregation.
id1 = cu.getString(cu.getColumnIndex(ID1));
URL = cu.getString(cu.getColumnIndex(BookmarkColumns.TITLE));
//lookupKey = cu.getString(cu.getColumnIndex(LOOKY));
// Append list of contacts to the scrollable TextView on the screen.
// Query phone numbers for this contact (may be more than one), so use a
// while-loop to move the cursor to the next row until moveToNext() returns
// false, indicating no more rows. Store the results in arrays since there may
// be more than one phone number stored per contact. The if-statement
// enclosing everything ensures that the contact has at least one phone
// number stored in the Contacts database.
phcounter = 0;
Cursor bCur = cr.query(URI1, null, ID1, new String[]{id1}, null);
while (bCur.moveToNext()) {
browserTITLE[phcounter] = bCur.getString(bCur.getColumnIndex(bHistoryTITLE));
browserURL[phcounter] = bCur.getString(bCur.getColumnIndex(bHistoryURL));
browserBOOKMARK[phcounter] = bCur.getString(bCur.getColumnIndex(bHistoryBOOKMARK));
browserVISITS[phcounter] = bCur.getString(bCur.getColumnIndex(bHistoryVISITS));
phcounter ++;
}
bCur.close();
}
// Write identifiers for this contact to the SD card file
//pw.println(name+" ID="+id+" LOOKUP_KEY="+lookupKey);
pw.println(BTitle+" ID="+id1+" LOOKUP_KEY="+lookupKey);
pw.println(BURL);
pw.println(BBOOKMARK);
pw.println(BVISITS);
}
// Flush the PrintWriter to ensure everything pending is output before closing
pw.flush();
pw.close();
f.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
Log.i("MEDIA", "*************** File not found. Did you" +
" add a WRITE_EXTERNAL_STORAGE permission to the manifest file? ");
} catch (IOException e) {
e.printStackTrace();
}
}
}
答案 0 :(得分：1)
您的选择列在URI1的第二个查询中错误，该行应显示为：
Cursor bCur = cr.query(URI1, null, ID1+"=?", new String[]{id1}, null);
不需要第二个查询。您首先查询所有列，从所有列中提取ID。然后对特定id的所有列执行嵌套查询。 您不需要嵌套查询，第一个查询将包含您需要的所有数据。
最佳文件格式的问题。这将取决于您将要创建的数据消耗量。