读取指定URL连接的文件内容

最新推荐文章于 2025-04-29 05:53:00 发布

原创最新推荐文章于 2025-04-29 05:53:00 发布 · 875 阅读

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#url #string #yahoo #import #null #class

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本文提供了一个简单的Java程序示例，展示了如何使用Java进行基本的网络请求操作。通过创建URLClient类，该程序能够从指定的URL读取网页内容，并将其打印出来。

import java.io.*;
import java.net.*;
public class URLClient {
    protected URLConnection connection;
    public String getDocumentAt(String urlString) {
   StringBuffer document = new StringBuffer();
   try {
        URL url = new URL(urlString);
        URLConnection conn = url.openConnection();
        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String line = null;
        while ((line = reader.readLine()) != null)
       document.append(line + " ");
        reader.close();
   } catch (MalformedURLException e) {
        System.out.println("Unable to connect to URL: " + urlString);
   } catch (IOException e) {
        System.out.println("IOException when connecting to URL: " + urlString);
   }
   return document.toString();
    }
    public static void main(String[] args) {
   URLClient client = new URLClient();
   String yahoo = client.getDocumentAt("http://www.sohu.com");
   System.out.println(yahoo);
    }

}