解析网页内容代码,Java代码库,德仔网

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代码分类
【Java】解析网页内容
作者:wangbinbin0326 / 发布于2014/10/8/ 414

	package test1002;
	
	import java.awt.BorderLayout;
	import java.awt.Dimension;
	import java.awt.EventQueue;
	import java.awt.Font;
	import java.awt.event.ActionEvent;
	import java.awt.event.ActionListener;
	import java.io.BufferedReader;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.net.URL;
	import java.net.URLConnection;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.Iterator;
	import javax.swing.JButton;
	import javax.swing.JFrame;
	import javax.swing.JLabel;
	import javax.swing.JPanel;
	import javax.swing.JScrollPane;
	import javax.swing.JTextArea;
	import javax.swing.JTextField;
	
	@SuppressWarnings("serial")
	public class InternetContentFrame extends JFrame {
	
	 private JTextArea ta_content;
	 private JTextField tf_address;
	 /**
	 * Launch the application
	 * @param args
	 */
	 public static void main(String args[]) {
	 EventQueue.invokeLater(new Runnable() {
	 public void run() {
	 try {
	 InternetContentFrame frame = new InternetContentFrame();
	 frame.setVisible(true);
	 } catch (Exception e) {
	 e.printStackTrace();
	 }
	 }
	 });
	 }
	
	 /**
	 * Create the frame
	 */
	 public InternetContentFrame() {
	 super();
	 setTitle("解析网页中的内容");
	 setBounds(100, 100, 484, 375);
	 setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	
	 final JPanel panel = new JPanel();
	 getContentPane().add(panel, BorderLayout.NORTH);
	
	 final JLabel label = new JLabel();
	 label.setText("输入网址：");
	 panel.add(label);
	
	 tf_address = new JTextField();
	 tf_address.setPreferredSize(new Dimension(260,25));
	 panel.add(tf_address);
	
	 final JButton button = new JButton();
	 button.addActionListener(new ActionListener() {
	 public void actionPerformed(final ActionEvent e) {
	 String address = tf_address.getText().trim();// 获得输入的网址
	 Collection urlCollection = getURLCollection(address);// 调用方法，获得网页内容的集合对象
	 Iterator it = urlCollection.iterator(); // 获得集合的迭代器对象
	 while(it.hasNext()){
	 ta_content.append((String)it.next()+"\n"); // 在文本域中显示解析的内容
	 }
	 }
	 });
	 button.setText("解析网页");
	 panel.add(button);
	
	 final JScrollPane scrollPane = new JScrollPane();
	 getContentPane().add(scrollPane, BorderLayout.CENTER);
	
	 ta_content = new JTextArea();
	 ta_content.setFont(new Font("", Font.BOLD, 14));
	 scrollPane.setViewportView(ta_content);
	 //
	 }
	 public Collection<String> getURLCollection(String urlString){
	 URL url = null; // 声明URL
	 URLConnection conn = null; // 声明URLConnection
	 Collection<String> urlCollection = new ArrayList<String>(); // 创建集合对象
	 try{
	 url = new URL(urlString); // 创建URL对象
	 conn = url.openConnection(); // 获得连接对象
	 conn.connect(); // 打开到url引用资源的通信链接
	 InputStream is = conn.getInputStream(); // 获取流对象
	 InputStreamReader in = new InputStreamReader(is,"UTF-8"); // 转换为字符流
	 BufferedReader br = new BufferedReader(in); // 创建缓冲流对象
	 String nextLine = br.readLine(); // 读取信息，解析网页
	 while (nextLine !=null){
	 urlCollection.add(nextLine); // 解析网页的全部内容，添加到集合中
	 nextLine = br.readLine(); // 读取信息，解析网页
	 }
	 }catch(Exception ex){
	 ex.printStackTrace();
	 }
	 return urlCollection;
	 }
	
	}
试试其它关键字
　网页内容　　网页　　解析网页　
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