Java注册表访问

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		try {
			// Runtime.getRuntime().exec("shutdown /r");
			// System.out.println(Charset.defaultCharset());
			//
			// System.out.println(System.getProperties().get("file.encoding"));
			// System.getProperties().put("file.encoding", "GBK");
			// System.getProperties().list(System.out);
			// System.out.println(Charset.defaultCharset());

			System.out.println(System.getProperty("https.proxyHost"));
			System.out.println(System.getProperty("https.proxyPort"));

			String proxyServer = "REG QUERY \"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\" /v ProxyServer";
			String proxyEnable = "REG QUERY \"HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\" /v ProxyEnable";

			String enable = Test.read(proxyEnable, "ProxyEnable");
			if ("0x0".equals(enable)) {
				String server = Test.read(proxyServer, "ProxyServer");
				System.setProperty("https.proxyHost", server.split(":")[0]);
				System.setProperty("https.proxyPort", server.split(":")[1]);
			}

		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	public static String read(String key, String target) throws Exception {
		String result = "";
		Process process = Runtime.getRuntime().exec(key);
		BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));

		String value = reader.readLine();
		while (value != null) {
			if (value.trim().startsWith(target)) {
				result = value.trim().split("    ")[2];
			}

			value = reader.readLine();
		}

		reader.close();

		return result;
	}