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• 下载代码
• 使用代理

下面展示一些 java代码`。

public static void downloadUsingStream(String urlStr, String file) {
		try {
			int timeout = 10*1000;
			URL url = new URL(urlStr);
			HttpURLConnection conn = (HttpURLConnection) url.openConnection();
			conn.setConnectTimeout(timeout);
			conn.setRequestMethod("GET");
			conn.setConnectTimeout(timeout);
			conn.setReadTimeout(timeout);
			InputStream inputStream = conn.getInputStream();
			FileOutputStream fis = new FileOutputStream(file);
			byte[] buffer = new byte[1024];
			int count = 0;
			while ((count = inputStream.read(buffer, 0, 1024 )) != -1) {
				fis.write(buffer, 0, count);
			}
			fis.close();
			inputStream.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

https要使用https.proxyHost和https.proxyPort这两个参数

public static void setProxy(String ip, int port) {
		System.setProperty("http.proxyHost", ip);
		System.setProperty("http.proxyPort", "" + port);
		System.setProperty("https.proxyHost", ip);
		System.setProperty("https.proxyPort", "" + port);
}