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        java.io.InputStream l_urlStream;
       // Ò²¿ÉÒÔ»»³Éuri,È»ºóµ÷ÓÃuri.toURL
        java.net.URL l_url = new java.net.URL(
                "http://www.google.cn");
       java.net.HttpURLConnection l_connection = (java.net.HttpURLConnection) l_url
                .openConnection();
        System.out.println(l_connection.getContentType());
        l_connection.connect();
        l_urlStream = l_connection.getInputStream();


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