import java.io.*;
import java.net.*;
import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.*;public class TrustSSL {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;}}public static InputStream HttpsSSL(URL strUrl){try {SSLContext sc = SSLContext.getInstance("SSL");sc.init(null, new TrustManager[] { new TrustAnyTrustManager() },new java.security.SecureRandom());HttpsURLConnection conn = (HttpsURLConnection) strUrl.openConnection();conn.setSSLSocketFactory(sc.getSocketFactory());conn.setHostnameVerifier(new TrustAnyHostnameVerifier());//设置超时间为5秒conn.setConnectTimeout(5 * 1000);//防止屏蔽程序抓取而返回403错误conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows NT; DigExt)");conn.connect();//获取服务器响应代码int responsecode = conn.getResponseCode();if (responsecode == 200) {//得到输入流return conn.getInputStream();} else {System.out.println("获取不到 " + strUrl + " 源码，服务器响应代码为：" + responsecode);return null;}} catch (NoSuchAlgorithmException e) {e.printStackTrace();} catch (KeyManagementException e) {e.printStackTrace();}catch (IOException e) {e.printStackTrace();}return null;}public static void main(String[] args) throws Exception {HttpsSSL(new URL("url"));}
}