如何使用Java从服务器端的特定URL获取HTML内容?

我使用了Apache Commons HttpClient库来实现这一点。请看这里: http://hc.apache.org/httpclient-3.x/tutorial.html

它比JDK HTTP客户端支持功能更丰富。

import java.net.*;
import java.io.*;

public class URLConnectionReader {
    public static void main(String[] args) throws Exception {
        URL yahoo = new URL("http://www.yahoo.com/");
        URLConnection yc = yahoo.openConnection();
        BufferedReader in = new BufferedReader(
                                new InputStreamReader(
                                yc.getInputStream()));
        String inputLine;

        while ((inputLine = in.readLine()) != null) 
            System.out.println(inputLine);
        in.close();
    }
}

如果是php,你可以使用 cURL ,但由于它是java,您将使用 HttpURLConnection 正如我刚刚在这个问题上发现的:

cURL equivalent in JAVA

导入java.io.BufferedReader; 导入java.io.IOException; 导入java.io.InputStreamReader; 导入java.net。URL; 导入java.net。URL连接;

公共类URLCoin{ public静态void main(String[]args){

    URL url;

    try {
        // get URL content

        String a="http://localhost:8080//TestWeb/index.jsp";
        url = new URL(a);
        URLConnection conn = url.openConnection();

        // open the stream and put it into BufferedReader
        BufferedReader br = new BufferedReader(
                           new InputStreamReader(conn.getInputStream()));

        String inputLine;
        while ((inputLine = br.readLine()) != null) {
                System.out.println(inputLine);
        }
        br.close();

        System.out.println("Done");

    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

}