我 将数据存储到SQLiteDatabase ，存储到SD卡中，现在我必须将所有SQLite数据发送到服务器。 注意：我有为服务器数据库创建相同的字段（ simillar 到SQLite数据库），例如： PersonName
我以前用于检查的代码，我能将数据存储到服务器（用于测试目的 - 我用户接受的数据到edittext ）然后 发送到服务器 ，我成功。
String url = "http://localhost/ChurchData.php";
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("sPersonName", editPersonName.getText().toString()));
String resultServer = getHttpPost(url,params);
Log.d("Entire string::", " " + resultServer);
/*** Default Value ***/
strStatusID = "0";
strError = "";
JSONObject c;
try {
c = new JSONObject(resultServer);
strStatusID = c.getString("StatusID");
strError = c.getString("Message");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// prepare save data
if(strStatusID.equals("0"))
{
Toast.makeText(getApplicationContext(), "Already Exist !", Toast.LENGTH_LONG).show();
}
else
{
Toast.makeText(getApplicationContext(), "Data Uploaded Successfully!", Toast.LENGTH_SHORT).show();
}
return true;
}
private String getHttpPost(String url,
List<NameValuePair> params) {
StringBuilder str = new StringBuilder();
HttpClient client = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
try {
httpPost.setEntity(new UrlEncodedFormEntity(params));
HttpResponse response = client.execute(httpPost);
StatusLine statusLine = response.getStatusLine();
int statusCode = statusLine.getStatusCode();
if (statusCode == 200) { // Status OK
HttpEntity entity = response.getEntity();
InputStream content = entity.getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(content));
String line;
while ((line = reader.readLine()) != null) {
str.append(line);
}
} else {
Log.e("Log", "Failed to download result..");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return str.toString();
}
我可能知道， 如何将SQLite数据库记录发送到服务器 ？我的数据库类如下所示：
public class myDBClasss extends SQLiteOpenHelper {
// Database Version
private static final int DATABASE_VERSION = 2;
// Database Name
private static final String DATABASE_NAME = "ChurchDB";
// Table Name
private static final String TABLE_MEMBER = "DataTable";
public myDBClasss(Context context) {
// to store data into SD Card
super(context, Environment.getExternalStorageDirectory()
+ File.separator + "ChurchData"
+ File.separator + DATABASE_NAME, null, DATABASE_VERSION);
}
@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
// Create Table Name
db.execSQL("CREATE TABLE " + TABLE_MEMBER +
"(PersonName VARCHAR(100)," +
" PersonEmail VARCHAR(100)," +
" PersonTelephone VARCHAR(100)," +
" Newsletter VARCHAR(100));"); // checkbox
Log.d("CREATE TABLE","Create Table Successfully - classs");
}
// Insert Data
public long insertData(String strPersonName, String strPersonEmail, String strPersonTelephone, String strNewsletter) {
// TODO Auto-generated method stub
try {
SQLiteDatabase db;
db = this.getWritableDatabase(); // Write Data
ContentValues Val = new ContentValues();
Val.put("PersonName", strPersonName);
Val.put("PersonEmail", strPersonEmail);
Val.put("PersonTelephone", strPersonTelephone);
Val.put("Newsletter", strNewsletter); // checkbox
long rows = db.insert(TABLE_MEMBER, null, Val);
db.close();
return rows; // return rows inserted.
} catch (Exception e) {
return -1;
}
}
// Update Data
public long updateData(String strPersonName, String strPersonEmail, String strPersonTelephone, String strNewsletter){
// TODO Auto-generated method stub
try {
SQLiteDatabase db;
db = this.getWritableDatabase(); // Write Data
ContentValues Val = new ContentValues();
Val.put("PersonName", strPersonName);
Val.put("PersonEmail", strPersonEmail);
Val.put("PersonTelephone", strPersonTelephone);
Val.put("Newsletter", strNewsletter); // checkbox
long rows = db.update(TABLE_MEMBER, Val, "PersonName=?",
new String[] { String.valueOf(strPersonName) });
db.close();
return rows; // return rows updated.
} catch (Exception e) {
return -1;
}
}
// Fetch data
public String[] selectData(String strPersonName) {
// TODO Auto-generated method stub
try {
String arrData[] = null;
SQLiteDatabase db;
db = this.getReadableDatabase(); // Read Data
Cursor cursor = db.query(TABLE_MEMBER, new String[] { "*" },
"PersonName=?",
new String[] { String.valueOf(strPersonName) }, null, null, null, null);
if(cursor != null)
{
if (cursor.moveToFirst()) {
arrData = new String[cursor.getColumnCount()];
arrData[0] = cursor.getString(0);
arrData[1] = cursor.getString(1);
arrData[2] = cursor.getString(2);
arrData[3] = cursor.getString(3); // checkbox
}
}
cursor.close();
db.close();
return arrData;
} catch (Exception e) {
return null;
}
}
// Check for data(s) using PersonName field
public boolean exists(String strImageName) {
SQLiteDatabase db;
db = this.getReadableDatabase(); // Read Data
Cursor cursor = db.rawQuery("select 1 from DataTable where PersonName= ?",
new String[] { strImageName });
boolean exists = (cursor.getCount() > 0);
cursor.close();
return exists;
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub
db.execSQL("DROP TABLE IF EXISTS " + TABLE_MEMBER);
// Re Create on method onCreate
onCreate(db);
}
}
答案 0 :(得分：6)
我认为简单的方法是将所有sqlite数据转换为xml或json，然后只需要一个http请求即可将所有数据发送到在线服务器。在在线服务器上，您可以轻松地解析数据，因为您已经知道xml或json的结构，无论您使用什么。
假设您的数据库中有2个字段。 ID，名称。你有10条记录。将所有记录转换为json。
假设您在数据库中查询所有记录，现在cursor对象将保存所有sqlite数据。
添加getAllData()方法以检索所有数据库数据。
public Cursor getAllData() {
String selectQuery = "Select * from "+TABLE_MEMBER;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
return cursor;
}
现在做，
Cursor cursor = getAllData(); //cursor hold all your data
JSONObject jobj ;
JSONArray arr = new JSONArray();
cursor.moveToFIrst();
while(cursor.moveToNext()) {
jobj = new JSONObject();
jboj.put("Id", cursor.getInt("Id"));
jboj.put("Name", cursor.getString("Name"));
arr.put(jobj);
}
jobj = new JSONObject();
jobj.put("data", arr);
String st = jboj.toString();
现在只需使用字符串参数进行http调用并发送到server.and并通过将此字符串转换为jsonobject来解析服务器。
现在根据你的代码，做
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("allData", st));
String resultServer = getHttpPost(url,params);
答案 1 :(得分：1)
我有一些代码片段只是为了你的想法。如果它帮助你我很高兴。
protected void startSync(Context aContext) {
try {
AccountManager am = AccountManager.get(getBaseContext());
Account[] ac = am.getAccountsByType(Constants.ACCOUNT_TYPE);
if (ac.length > 0) {
Toast.makeText(SuperHomeActivity.this,
"Synchronization Started", Toast.LENGTH_SHORT).show();
List<PeriodicSync> aList = ContentResolver.getPeriodicSyncs(
ac[0], Constants.AUTHORITY);
Bundle bundle = new Bundle();
bundle.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, false);
if (aList != null && aList.size() > 0) {
while (aList != null && !aList.isEmpty()) {
ContentResolver.removePeriodicSync(ac[0],
Constants.AUTHORITY, aList.get(0).extras);
aList.remove(0);
}
}
// mention only in seconds -> 120 minutes 60 seconds
ContentResolver.addPeriodicSync(ac[0], Constants.AUTHORITY,
bundle, 5 * 60); //15
ContentResolver.requestSync(ac[0], Constants.AUTHORITY, bundle);
}
} catch (Exception ex) {
Log.e("SyncAccountTriggerError", ex.getMessage());
}
}
你可以通过
来调用它 startSync(getApplicationContext());
如有任何更多说明，您可以ping我。
答案 2 :(得分：0)
您可以使用Http Post方法或Get方法，或者如果您想直接更新服务器数据库，则使用Put方法。您可以使用NameValue对通过http请求发送数据，只需从服务器获取该数据并更新您的数据库。就是这样。