Java https 解决PKIX path building failed问题(信任所有证书)

1、异常代码

PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

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

办法一

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。

SslUtils.ignoreSsl();

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);} }