Java 信任所有SSL证书(解决PKIX path building failed问题) | PHP & Java
Java在请求某些不受信任的https网站时会报：PKIX path building failed
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javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1884) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:270) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1341) at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:153) at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868) at sun.security.ssl.Handshaker.process_record(Handshaker.java:804) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1016) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1312) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1339) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1323) at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:563) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1300) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) at SslTest.getRequest(SslTest.java:16) at SslTest.main(SslTest.java:40)Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:385) at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:230) at sun.security.validator.Validator.validate(Validator.java:260) at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:326) at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:231) at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:126) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1323) ... 13 moreCaused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:196) at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:268) at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:380) ... 19 more |
解决办法：
1、导入证书到本地证书库
2、信任所有SSL证书
最好的解决办法或许是信任所有SSL证书，因为某些时候不能每次都手动的导入证书非常麻烦。现在封装了个方法，在连接openConnection的时候忽略掉证书就行了。
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SslUtils.ignoreSsl(); |
SslUtils.java:
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import java.security.cert.CertificateException;import java.security.cert.X509Certificate;import javax.net.ssl.HostnameVerifier;import javax.net.ssl.HttpsURLConnection;import javax.net.ssl.SSLContext;import javax.net.ssl.SSLSession;import javax.net.ssl.TrustManager;import javax.net.ssl.X509TrustManager;public class SslUtils { private static void trustAllHttpsCertificates() throws Exception { TrustManager[] trustAllCerts = new TrustManager[1]; TrustManager tm = new miTM(); trustAllCerts[0] = tm; SSLContext sc = SSLContext.getInstance("SSL"); sc.init(null, trustAllCerts, null); HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory()); } static class miTM implements TrustManager,X509TrustManager { public X509Certificate[] getAcceptedIssuers() { return null; } public boolean isServerTrusted(X509Certificate[] certs) { return true; } public boolean isClientTrusted(X509Certificate[] certs) { return true; } public void checkServerTrusted(X509Certificate[] certs, String authType) throws CertificateException { return; } public void checkClientTrusted(X509Certificate[] certs, String authType) throws CertificateException { return; } } /** * 忽略HTTPS请求的SSL证书，必须在openConnection之前调用 * @throws Exception */ public static void ignoreSsl() throws Exception{ HostnameVerifier hv = new HostnameVerifier() { public boolean verify(String urlHostName, SSLSession session) { System.out.println("Warning: URL Host: " + urlHostName + " vs. " + session.getPeerHost()); return true; } }; trustAllHttpsCertificates(); HttpsURLConnection.setDefaultHostnameVerifier(hv); }} |
SslTest.java:
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import java.io.OutputStreamWriter;import java.net.URL;import java.net.URLConnection;import org.apache.commons.io.IOUtils;public class SslTest { public String getRequest(String url,int timeOut) throws Exception{ URL u = new URL(url); if("https".equalsIgnoreCase(u.getProtocol())){ SslUtils.ignoreSsl(); } URLConnection conn = u.openConnection(); conn.setConnectTimeout(timeOut); conn.setReadTimeout(timeOut); return IOUtils.toString(conn.getInputStream()); } public String postRequest(String urlAddress,String args,int timeOut) throws Exception{ URL url = new URL(urlAddress); if("https".equalsIgnoreCase(url.getProtocol())){ SslUtils.ignoreSsl(); } URLConnection u = url.openConnection(); u.setDoInput(true); u.setDoOutput(true); u.setConnectTimeout(timeOut); u.setReadTimeout(timeOut); OutputStreamWriter osw = new OutputStreamWriter(u.getOutputStream(), "UTF-8"); osw.write(args); osw.flush(); osw.close(); u.getOutputStream(); return IOUtils.toString(u.getInputStream()); } public static void main(String[] args) { try { SslTest st = new SslTest(); System.out.println(a); } catch (Exception e) { e.printStackTrace(); } }} |