获取网页内容

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;


public class InputStreamExample {

	public InputStreamExample() {
	}

	public static void main(String[] args) {
		try {
			URL url = new URL(
					"http://www.uni-card.net/updateV2.php?usernum=15904060643&tel2=15904060643&qnck=03261099659903239&qncpw=829516006350133025");
			try {
				URLConnection c = url.openConnection();
				String txtContent = "";
				InputStream is;
				int ch;
				try {
					is = c.getInputStream();
					ch = is.read();
					while(ch != -1) {
						txtContent = txtContent + (char) ch;
						ch = is.read();
					}
					is.close();
				} catch(IOException io1) {
					System.out.println("IOException: " + io1.toString());
				}
				// get the html content
				txtContent = new String(txtContent.getBytes("8859_1"), "utf-8");
				
				int pos1 = txtContent.indexOf("<title");
				int pos2 = txtContent.indexOf("</title>");
				txtContent = txtContent.substring(pos1, pos2);

				System.out.println(txtContent);
				if("<title>优尼->提示页面".equals(txtContent)) {
					System.out.println("一样");
				} else {
					System.out.println("不一样");
				}

			} catch(IOException io2) {
				System.out.println("IOException: " + io2.toString());
			}

		} catch(MalformedURLException e) {
			System.out.println("MalformedURLException：" + e.toString());
		}

	}

}