在获得代理IP之后，我们要怎么进行设置对其进行使用呢?黑洞代理下面带来了单次代理的设置教程，大家可以通过这个教程的步骤来进行学习。

设置代理教程：

单次代理

单次代理表示只在这一次连接中有效，即每次都需要代理。

http方式的代理非常简单，在URL对象的openConnection方法中加上个Proxy对象即可

Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(ipBean.getIp(), ipBean.getPort()));

connection = (HttpsURLConnection) new URL(url).openConnection(proxy);

https 稍微复杂点了，中间加上了ssl协议

/**

* @param url

* @param headerMap 请求头部

* @param ipBean

* @return

* @throws Exception

*/

public static String getResponseContent(String url, Map<String, List> headerMap, IPBean ipBean) throws Exception {

HttpsURLConnection connection = null;

// 设置代理

if (ipBean != null) {

Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(ipBean.getIp(), ipBean.getPort()));

connection = (HttpsURLConnection) new URL(url).openConnection(proxy);

if (ipBean.getType() == IPBean.TYPE_HTTPS) {

SSLContext sslContext = SSLContext.getInstance("SSL");

sslContext.init(null, new TrustManager[], new java.security.SecureRandom());

connection.setSSLSocketFactory(sslContext.getSocketFactory());

connection.setHostnameVerifier(new TrustAnyHostnameVerifier());

}

}

if (connection == null)

connection = (HttpsURLConnection) new URL(url).openConnection();

// 添加请求头部

connection.setRequestProperty("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36");

if (headerMap != null) {

Iterator<Map.Entry<String, List>> iterator = headerMap.entrySet().iterator();

while (iterator.hasNext()) {

Map.Entry<String, List> entry = iterator.next();

Listvalues = entry.getValue();

for (String value : values)

connection.setRequestProperty(entry.getKey(), value);

}

}

InputStream inputStream = connection.getInputStream();

BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));

StringBuilder stringBuilder = new StringBuilder();

String line;

while ((line = reader.readLine()) != null) {

stringBuilder.append(line);

}

reader.close();

inputStream.close();

return stringBuilder.toString();

}

private static class TrustAnyTrustManager implements X509TrustManager {

public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {

}

public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {

}

public X509Certificate[] getAcceptedIssuers() {

return new X509Certificate[]{};

}

}

private static class TrustAnyHostnameVerifier implements HostnameVerifier {

public boolean verify(String hostname, SSLSession session) {

return true;

}

}

以上，我们就实现了单次代理的操作。大家如果对代理IP的使用还有疑惑，可以联系黑洞代理客服进行解答。