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解決證書信任問題:unable to find valid certification path to requested target

簡單粗暴,直接上代碼。把下面這一段複制到你的代碼中:

HostnameVerifier hv = new HostnameVerifier() {  
        public boolean verify(String urlHostName, SSLSession session) {  
            System.out.println("Warning: URL Host: " + urlHostName + " vs. "  
                               + session.getPeerHost());  
            return true;  
        }  
    };  
      
    private static void trustAllHttpsCertificates() throws Exception {  
        javax.net.ssl.TrustManager[] trustAllCerts = new javax.net.ssl.TrustManager[1];  
        javax.net.ssl.TrustManager tm = new miTM();  
        trustAllCerts[0] = tm;  
        javax.net.ssl.SSLContext sc = javax.net.ssl.SSLContext  
                .getInstance("SSL");  
        sc.init(null, trustAllCerts, null);  
        javax.net.ssl.HttpsURLConnection.setDefaultSSLSocketFactory(sc  
                .getSocketFactory());  
    }  
  
    static class miTM implements javax.net.ssl.TrustManager,  
            javax.net.ssl.X509TrustManager {  
        public java.security.cert.X509Certificate[] getAcceptedIssuers() {  
            return null;  
        }  
  
        public boolean isServerTrusted(  
                java.security.cert.X509Certificate[] certs) {  
            return true;  
        }  
  
        public boolean isClientTrusted(  
                java.security.cert.X509Certificate[] certs) {  
            return true;  
        }  
  
        public void checkServerTrusted(  
                java.security.cert.X509Certificate[] certs, String authType)  
                throws java.security.cert.CertificateException {  
            return;  
        }  
  
        public void checkClientTrusted(  
                java.security.cert.X509Certificate[] certs, String authType)  
                throws java.security.cert.CertificateException {  
            return;  
        }  
    }
           

然後,在發起請求前,再加上這兩行代碼:

trustAllHttpsCertificates();  
HttpsURLConnection.setDefaultHostnameVerifier(hv);