将已解析的xml数据存储到sqlite？Android的

Store parsed xml data to sqlite ? Android

我想将setListAdapter显示的数据存储到sqlite ..怎么样？
请帮我

XML文件http://p-xr.com/xml

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package com.pxr.tutorial.xmltest;

import java.util.ArrayList;
import java.util.HashMap;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

import android.app.ListActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;

public class Main extends ListActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listplaceholder);

ArrayList> mylist = new ArrayList>();

String xml = XMLfunctions.getXML();
Document doc = XMLfunctions.XMLfromString(xml);

int numResults = XMLfunctions.numResults(doc);

if((numResults map = new HashMap();

Element e = (Element)nodes.item(i);
map.put("id", XMLfunctions.getValue(e,"id"));
map.put("name","Naam:" + XMLfunctions.getValue(e,"name"));
map.put("Score","Score:" + XMLfunctions.getValue(e,"score"));

mylist.add(map);
}

ListAdapter adapter = new SimpleAdapter(this, mylist , R.layout.main,
new String[] {"id","name","Score" },
new int[] {R.id.id, R.id.item_title, R.id.item_subtitle });

setListAdapter(adapter);

/* final ListView lv = getListView();
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View view, int position, long id) {
@SuppressWarnings("unchecked")
HashMap o = (HashMap) lv.getItemAtPosition(position);
Toast.makeText(Main.this,"ID '" + o.get("id") +"' was clicked.", Toast.LENGTH_LONG).show();

}
});*/
}
}

我建议你首先解析数据，然后将其保存到数据库中然后显示。

如果您没有创建数据库，则必须先执行此操作，示例代码如何执行此操作

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import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

/**
*
* @author Robert
*
*/
public class DatabaseHelper extends SQLiteOpenHelper{

/**
* Default constructor- creates database
* @param context
*/
public DatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, 1);
}

/**
* Implemented methood from SQLiteOpenHelper- called when
* constructor of DatabaseHelper is called
* Creates three tables (TRIP, POINT, TRANSFER) with relations
* TRAVEL-POINT and POINT TRANSFER
* @see SQLiteOpenHelper
*/
@Override
public void onCreate(SQLiteDatabase db) {
db.execSQL("CREATE TABLE" + TRIP_TABLE_NAME
+"(_id INTEGER PRIMARY KEY AUTOINCREMENT,"
+ FROM +" TEXT,"
+ TO +" TEXT);");
db.execSQL("CREATE TABLE" + TRANSFER_TABLE_NAME
+"(_id INTEGER PRIMARY KEY AUTOINCREMENT,"
+ NOTE +" TEXT,"
+ TIME +" TEXT,"
+ DATE +" TEXT,"
+ ADDRESS +" TEXT,"
+ CITY +" TEXT,"
+ COUNTRY +" TEXT,"
+ LATITUDE +" TEXT,"
+ LOGITUDE +" TEXT,"
+ TRANFER_TYPE +" TEXT,"
+ FK_POINT +" INTEGER NOT NULL REFERENCES"+ POINT_TABLE_NAME +"(_id)"
+"ON DELETE CASCADE);");
db.execSQL("CREATE TABLE" + POINT_TABLE_NAME
+"(_id INTEGER PRIMARY KEY AUTOINCREMENT,"
+ NAME +" TEXT,"
+ ADDRESS +" TEXT,"
+ CITY +" TEXT,"
+ COUNTRY +" TEXT,"
+ LATITUDE +" TEXT,"
+ LOGITUDE +" TEXT,"
+ FK_TRAVEL +" INTEGER NOT NULL REFERENCES"+ TRIP_TABLE_NAME +"(_id)"
+"ON DELETE CASCADE);");
}

/**
* Implemented method from SQLiteOpenHelper- we don't use it now
* @see SQLiteOpenHelper
*/
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

}

/**
* Private fields, mainly names of columns and tables in database
*/
private static final String DATABASE_NAME ="TRAVELER_NOTEBOOK";

//Table names
private static final String TRIP_TABLE_NAME ="TRIP";
private static final String POINT_TABLE_NAME ="POINT";
private static final String TRANSFER_TABLE_NAME ="TRANSFER";

//Columns names
private static final String FROM ="FROM_PLACE";
private static final String TO ="TO_PLACE";

private static final String NAME ="NAME";
private static final String ADDRESS ="ADDRESS";
private static final String CITY ="CITY";
private static final String COUNTRY ="COUNTRY";
private static final String LATITUDE ="LATITUDE";
private static final String LOGITUDE ="LOGITUDE";

private static final String NOTE ="NOTE";
private static final String TIME ="TIME";
private static final String DATE ="DATE";
private static final String TRANFER_TYPE ="TRANSFER_TYPE";

//Foregin keys name
private static final String FK_TRAVEL ="FK_TRAVEL_ID";
private static final String FK_POINT ="FK_POINT_ID";

}

下一步是在您的活动中获取可写数据库，您可以通过创建来实现

1	SQLiteDatabase database = (new DatabaseHelper(this).getWritableDatabase());

其中DatabaseHelper是数据库帮助程序类的名称。如果你想在数据库中插入一些内容，只需要像下面那样制作一些类似的东西：

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private void processAdd(values_to_save) {
ContentValues values = new ContentValues(number_of_values);
values.put(column_name, value);
values.put(column_name, value);
if(database!=null){
database.insert(TABLE_NAME, null, values);
} else{
Log.e("MyAppError","Database is null");
}
}

ContentValue类似于HashMap键值，其中键是列名和值 - 您想要插入的内容。
请记住，在每个表中，您应该有列"_id主键自动增量"，因为我记得很好，您没有必要，但这会使您的项目更复杂。