***************************************************************XML解析之DOM解析_四层结合数据库*********************************************************************

*******************************文件放在assets中*************************

**************************************************数据库的Bean**************************************************************

public class Book {
	private String _id;
	private String name;
	private String author;
	private String price;
	public String get_id() {
		return _id;
	}
	public void set_id(String _id) {
		this._id = _id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public String getAuthor() {
		return author;
	}
	public void setAuthor(String author) {
		this.author = author;
	}
	public String getPrice() {
		return price;
	}
	public void setPrice(String price) {
		this.price = price;
	}
	public Book(String _id,String name,String author,String price) {
		super();
		this._id = _id;
		this.name = name;
		this.author = author;
		this.price = price;
	}
	public Book() {
		super();
		// TODO Auto-generated constructor stub
	}
	@Override
	public String toString() {
		return   name + "\t\t"+ "\t\t"+ author+ "\t\t"
				+  price + "\n";
	}
	public Book(String name,String price) {
		super();
		this.name = name;
		this.author = author;
		this.price = price;
	}
}

*************************************************MainActivity.class***********************************************

import java.util.ArrayList;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

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

import android.os.Bundle;
import android.app.Activity;
import android.content.ContentValues;
import android.database.sqlite.sqliteDatabase;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends Activity {

	private View listbook;
	private ListView listView;
	private ArrayList<Book> list;
	private ArrayAdapter<Book> adapter;
	private MysqLite MysqLite;
	private sqliteDatabase db;
	private ContentValues values;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		listbook = findViewById(R.id.listbook);
		listView = (ListView) findViewById(R.id.listView);

		list = new ArrayList<Book>();
		MysqLite = new MysqLite(this);
		db = MysqLite.getWritableDatabase();
		values = new ContentValues();
		adapter = new ArrayAdapter<Book>(MainActivity.this,android.R.layout.simple_list_item_1,android.R.id.text1,list);
		listView.setAdapter(adapter);
		listbook.setOnClickListener(new OnClickListener() {

			private String price;
			private String name;
			private String author;

			@Override
			public void onClick(View v) {
				list.clear();//每次都清空数据
				try {
					//获取一个DocumentBuilder工厂
					DocumentBuilderFactory factory = DocumentBuilderFactory
							.newInstance();
					//通过DocumentBuilder工厂得到一个DocumentBuilder对象
					DocumentBuilder builder = factory.newDocumentBuilder();
					//getAssets方法获取资源文件，使用DocumentBuilder对象将资源文件流转换成Document对象
					Document document = builder.parse(getAssets().open(
							"books2.xml"));
					//使用document对象的getdocumentElement方法获取document第一层Element对象
					Element element = document.getDocumentElement();
					//通过element对象的getelementsByTagName获取该element子节点的nodeList
					NodeList china = element.getElementsByTagName("china");
					for (int i = 0; i < china.getLength(); i++) {
						Element china1 = (Element) china.item(i);
						NodeList list2 = element.getElementsByTagName("book");
						//遍历nodeList
						for (int j = 0; j < list2.getLength(); j++) {
							Element element2 = (Element) list2.item(j);
//						String id = element2.getAttribute("id");
							
							price = element2.getElementsByTagName("price")
									.item(0).getTextContent();
							name = element2.getElementsByTagName("name")
									.item(0).getFirstChild().getNodeValue();
							author = element2.getElementsByTagName("author")
									.item(0).getTextContent();
							//bookHe();
						}
					}
					NodeList foreiner = element.getElementsByTagName("foreiner");
					for (int i = 0; i < foreiner.getLength(); i++) {
						Element foreiner1 = (Element) foreiner.item(i);
						NodeList list2 = element.getElementsByTagName("book");
						//遍历nodeList
						for (int j = 0; j < list2.getLength(); j++) {
							Element element2 = (Element) list2.item(j);
//						String id = element2.getAttribute("id");
							
							price = element2.getElementsByTagName("price")
									.item(0).getTextContent();
							name = element2.getElementsByTagName("name")
									.item(0).getFirstChild().getNodeValue();
							author = element2.getElementsByTagName("author")
									.item(0).getTextContent();
							bookHe();
							values.put("name",name);//添加到数据库
							values.put("author",author);
							values.put("price",price);
							db.insert("book",null,values);
							Toast.makeText(MainActivity.this,"BOOK",0).show();
						}
					}
			
					Toast.makeText(MainActivity.this,"KING",0).show();
					adapter.notifyDataSetChanged();

				} catch (Exception e) {
					// TODO: handle exception
				}
			}

			private void bookHe() {
				Book book = new Book(name,author,price);
				list.add(book);
			}
		});
	}
}

**************************************************MysqLite.class****************************************************************

import android.content.Context;
import android.database.sqlite.sqliteDatabase;
import android.database.sqlite.sqliteDatabase.CursorFactory;
import android.database.sqlite.sqliteOpenHelper;

public class MysqLite extends sqliteOpenHelper {

	public MysqLite(Context context) {
		super(context,"k.db",1);
		// TODO Auto-generated constructor stub
	}

	@Override
	public void onCreate(sqliteDatabase db) {
		// TODO Auto-generated method stub
		db.execsql("create table book(_id integer primary key autoincrement,name varchar(0),author varchar(0),price varchar(0))");
	}

	@Override
	public void onUpgrade(sqliteDatabase db,int oldVersion,int newVersion) {
		// TODO Auto-generated method stub

	}

}

原文链接：https://www.f2er.com/xml/295054.html