java.net.URL的使用_JAVA_编程开发_程序员俱乐部

public static void main(String args[]) throws Exception{
	String str = getContentFromURL("http://www.baidu.com");
	System.out.println(str);
}
	
private static String getContentFromURL(String urladdr) 
throws IOException {
	InputStream is=null;
	try {
		URL url=new URL(urladdr);
		URLConnection conn=url.openConnection();
		conn.setRequestProperty ("User-Agent", "Profile/MIDP-1.0 Configuration/CLDC-1.0");
		is=conn.getInputStream();
		BufferedReader br=new BufferedReader(
					new InputStreamReader(is));
		StringBuilder sb=new StringBuilder();
		String str=null;
		while((str=br.readLine())!=null){
			sb.append(str+"\n");
		}
		conn.getInputStream().close();
		return sb.toString();
	}finally{
		if(is!=null){
			try {
					is.close();
			} catch (IOException e) {}
		}
	}
}