Question

enter image description here我在android中开发了一个离线数据输入应用程序，用户输入将保存在sqlite db中的所有详细信息。

在一天结束时，我想将数据从sqlite数据库传输到服务器，该服务器将数据存储在PostgreSQL数据库中。根据我的要求，我没有找到任何好的答案。

Answer 1

  /// whrite this in database class
   public Cursor getAllData(String emailid) {
            String query = "select * from "+ORDERHISTORY_TABLE+" Where "+ ACCOUNT + "= '"+ emailid +"' ORDER BY "+ NOTIFICATION_RID +" ASC ";
            SQLiteDatabase db = this.getReadableDatabase();
            Cursor cursor = db.rawQuery(query, null);
            return cursor;
        }
////write this in java class
                   {
     Cursor cursor = helpher.getAllData(Emailid);//cursor hold all your data
                    arr = new JSONArray();
                    if (cursor.moveToFirst()){
                        do {
                            jobj = new JSONObject();
                            try {
                                jobj.put("Order_id", cursor.getString(1));
                                jobj.put("Order_tittle",  cursor.getString(2));
                                jobj.put("Order_quantity",  cursor.getString(3));
                                jobj.put("Order_price",  cursor.getString(5));
                                jobj.put("Order_totalprice",  cursor.getString(4));
                                jobj.put("Order_image",  cursor.getString(6));
                                jobj.put("Address1",  cursor.getString(8));
                                jobj.put("Address2",  cursor.getString(9));
                                jobj.put("Name",  cursor.getString(10));
                                jobj.put("Phone",  cursor.getString(11));
                            } catch (JSONException e) {
                                e.printStackTrace();
                            }
                            arr.put(jobj);
                        }while (cursor.moveToNext());
                    }
                    jobj = new JSONObject();
                    try {
                        jobj.put("data", arr);
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    String st = jobj.toString();
              Log.i("jhfg",""+st);




                    try {
                        JsonObjectRequest request_json = new JsonObjectRequest("url", new JSONObject(st),
                                new Response.Listener<JSONObject>() {
                                    @Override
                                    public void onResponse(JSONObject response) {
                                        //Process os success response
                                    }
                                }, new Response.ErrorListener() {
                            @Override
                            public void onErrorResponse(VolleyError error) {
                                VolleyLog.e("Error: ", error.getMessage());
                            }
                        });
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }

    // add the request object to the queue to be executed
    //                ApplicationController.getInstance().addToRequestQueue(request_json);

            }

想要将数据从sqlite数据库传输到服务器

1 个答案: