java URLConnection 测试连接 访问 网站

public class CallHtml {

	public static void callOnePage(String str) {

		try {


			int httpResult;

			URL url = new URL(str);

			URLConnection connection = url.openConnection();

			connection.connect();

			HttpURLConnection httpURLConnection = (HttpURLConnection) connection;

			httpResult = httpURLConnection.getResponseCode();

			if (httpResult != HttpURLConnection.HTTP_OK) {

				System.out.println("没有连接成功");

			} else {

				System.out.println("连接成功了");

			}

		} catch (Exception e) {

			// TODO: handle exception

		}

	}

	// 这个方法适当重载，就可以省去一些参数传递。
		public static void main(String[] args) {
			String str = "http://localhost:8080/seveneast/exam/student/student!toExam.do?pid=48";
			 CallHtml.callOnePage(str);//生成主页。  
		}
}