import java.net.HttpURLConnection;import java.net.URL;import java.io.IOException;import java.io.InputStream;import java.io.BufferedReader;import java.io.InputStreamReader;public class httpGet{    private URL url;    private HttpURLConnection httpURLConn;    public void myDoGet()    {        try        {            String temp = new String();            url = new  URL("http://localhost:8080/myServlet/welcome");            httpURLConn= (HttpURLConnection)url.openConnection();            httpURLConn.setDoOutput(true);            httpURLConn.setRequestMethod("GET");            httpURLConn.setIfModifiedSince(999999999);            httpURLConn.setRequestProperty("Referer", "http://localhost:80");            httpURLConn.setRequestProperty("User-Agent", "test");            httpURLConn.connect();            InputStream in =httpURLConn.getInputStream();            BufferedReader bd = new BufferedReader(new InputStreamReader(in));            while((temp=bd.readLine())!=null)            {                System.out.println(temp);            }                    }        catch (Exception e)        {            e.printStackTrace();        }         finally        {            if(httpURLConn!=null)            {                httpURLConn.disconnect();            }        }    }    public static void main(String[] args)    {        httpGet hg = new httpGet();        hg.myDoGet();    }}

java 发起 HTTP请求