解決Java呼叫https服務證書錯誤javax.net.ssl.SSLHandshakeException
轉自部落格園 http://www.cnblogs.com/cloudapps/p/5022544.html
Azure作為微軟的公有云平臺，提供了非常豐富的SDK和API讓開發人員可以非常方便的呼叫的各項服務，目前除了自家的.NET, Java, Python, nodeJS, Ruby，PHP等語言都提供支援，詳細的文件說明請參考：
然而在使用過程中，以Java語言為例，在初始呼叫Azure SDK/API的時候大家會碰到類似下面的錯誤：
[WARN] ServiceBusContract -
com.sun.jersey.api.client.ClientHandlerException:
javax.net.ssl.SSLHandshakeException
at com.sun.jersey.client.urlconnection.URLConnectionClientHandler.handle(URLConnectionClientHandler.java:151)
at com.microsoft.windowsazure.services.servicebus.implementation.AuthorizationFilter.handle(AuthorizationFilter.java:39)
at com.microsoft.windowsazure.core.pipeline.jersey.ClientFilterRequestAdapter.handle(ClientFilterRequestAdapter.java:36)
at com.sun.jersey.api.client.Client.handle(Client.java:648)
。。。。。。
其實這個錯誤並不是Azure的問題，如果大家搜一搜就知道，只要是你用Java去訪問https的網站或者服務，都會碰到類似的錯誤，最根本的原因是CNNIC所頒發的證書並不被JDK所認可，其中原因大家應該懂得：）今年5月份，Google和Firefox等多家網際網路公司更是將直接拒絕接受CNNIC所頒發的證書:
言歸正傳，如何解決這個問題？
- 等待Oracle/Google/Mozilla等等組織信任CNNIC，算了，洗洗睡吧
- 使用Java的TrustManager忽略所有的SSL請求的證書，僅僅用於開發測試，限於篇幅不做介紹了
- 匯入目標網站的證書，然後在開始呼叫之前，指定keystore就ok了，本文介紹下該方法
在你的IDE環境中匯入如下檔案獲取目標網站的證書，該程式是Sun（已經被Oracle收了）的一位大牛寫的，名字沒有查到，我只是引用一下，不是我寫的，對其貢獻表示尊重：
package com.azurelabs.china.tools;
/*
* Copyright 2006 Sun Microsystems, Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* - Neither the name of Sun Microsystems nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.security.KeyStore;
import java.security.MessageDigest;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.TrustManager;
import javax.net.ssl.TrustManagerFactory;
import javax.net.ssl.X509TrustManager;
public class InstallCert {
public static void main(String[] args) throws Exception {
String host;
int port;
char[] passphrase;
if ((args.length == 1) || (args.length == 2)) {
String[] c = args[0].split(":");
host = c[0];
port = (c.length == 1) ? 443 : Integer.parseInt(c[1]);
String p = (args.length == 1) ? "changeit" : args[1];
passphrase = p.toCharArray();
} else {
System.out
.println("Usage: java InstallCert <host>[:port] [passphrase]");
return;
}
File file = new File("jssecacerts");
if (file.isFile() == false) {
char SEP = File.separatorChar;
File dir = new File(System.getProperty("java.home") + SEP + "lib"
+ SEP + "security");
file = new File(dir, "jssecacerts");
if (file.isFile() == false) {
file = new File(dir, "cacerts");
}
}
System.out.println("Loading KeyStore " + file + "...");
InputStream in = new FileInputStream(file);
KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
ks.load(in, passphrase);
in.close();
SSLContext context = SSLContext.getInstance("TLS");
TrustManagerFactory tmf = TrustManagerFactory
.getInstance(TrustManagerFactory.getDefaultAlgorithm());
tmf.init(ks);
X509TrustManager defaultTrustManager = (X509TrustManager) tmf
.getTrustManagers()[0];
SavingTrustManager tm = new SavingTrustManager(defaultTrustManager);
context.init(null, new TrustManager[] { tm }, null);
SSLSocketFactory factory = context.getSocketFactory();
System.out
.println("Opening connection to " + host + ":" + port + "...");
SSLSocket socket = (SSLSocket) factory.createSocket(host, port);
socket.setSoTimeout(10000);
try {
System.out.println("Starting SSL handshake...");
socket.startHandshake();
socket.close();
System.out.println();
System.out.println("No errors, certificate is already trusted");
} catch (SSLException e) {
System.out.println();
e.printStackTrace(System.out);
}
X509Certificate[] chain = tm.chain;
if (chain == null) {
System.out.println("Could not obtain server certificate chain");
return;
}
BufferedReader reader = new BufferedReader(new InputStreamReader(
System.in));
System.out.println();
System.out.println("Server sent " + chain.length + " certificate(s):");
System.out.println();
MessageDigest sha1 = MessageDigest.getInstance("SHA1");
MessageDigest md5 = MessageDigest.getInstance("MD5");
for (int i = 0; i < chain.length; i++) {
X509Certificate cert = chain[i];
System.out.println(" " + (i + 1) + " Subject "
+ cert.getSubjectDN());
System.out.println(" Issuer " + cert.getIssuerDN());
sha1.update(cert.getEncoded());
System.out.println(" sha1 " + toHexString(sha1.digest()));
md5.update(cert.getEncoded());
System.out.println(" md5 " + toHexString(md5.digest()));
System.out.println();
}
System.out
.println("Enter certificate to add to trusted keystore or 'q' to quit: [1]");
String line = reader.readLine().trim();
int k;
try {
k = (line.length() == 0) ? 0 : Integer.parseInt(line) - 1;
} catch (NumberFormatException e) {
System.out.println("KeyStore not changed");
return;
}
X509Certificate cert = chain[k];
String alias = host + "-" + (k + 1);
ks.setCertificateEntry(alias, cert);
OutputStream out = new FileOutputStream("jssecacerts");
ks.store(out, passphrase);
out.close();
System.out.println();
System.out.println(cert);
System.out.println();
System.out
.println("Added certificate to keystore 'jssecacerts' using alias '"
+ alias + "'");
}
private static final char[] HEXDIGITS = "0123456789abcdef".toCharArray();
private static String toHexString(byte[] bytes) {
StringBuilder sb = new StringBuilder(bytes.length * 3);
for (int b : bytes) {
b &= 0xff;
sb.append(HEXDIGITS[b >> 4]);
sb.append(HEXDIGITS[b & 15]);
sb.append(' ');
}
return sb.toString();
}
private static class SavingTrustManager implements X509TrustManager {
private final X509TrustManager tm;
private X509Certificate[] chain;
SavingTrustManager(X509TrustManager tm) {
this.tm = tm;
}
public X509Certificate[] getAcceptedIssuers() {
throw new UnsupportedOperationException();
}
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
throw new UnsupportedOperationException();
}
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
this.chain = chain;
tm.checkServerTrusted(chain, authType);
}
}
}
複製到你的IDE中，加上你的網站名字作為引數執行，如果是Azure，就使用www.windowsazure.cn作為引數，選擇1，回車，就可以得到一個keystore檔案：
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(Unknown Source)
at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
at sun.security.ssl.Handshaker.processLoop(Unknown Source)
at sun.security.ssl.Handshaker.process_record(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at com.azurelabs.china.tools.InstallCert.main(InstallCert.java:104)
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(Unknown Source)
at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
at sun.security.validator.Validator.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
at com.azurelabs.china.tools.InstallCert$SavingTrustManager.checkServerTrusted(InstallCert.java:200)
at sun.security.ssl.AbstractTrustManagerWrapper.checkServerTrusted(Unknown Source)
... 9 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
at java.security.cert.CertPathBuilder.build(Unknown Source)
... 17 more
Server sent 2 certificate(s):
1 Subject CN=support.windowsazure.cn, OU=Azure, O=Shanghai Blue Cloud Technology Co. Ltd, L=Shanghai, ST=Shanghai, C=CN
Issuer CN=WoSign Class 3 OV Server CA G2, O=WoSign CA Limited, C=CN
sha1 39 02 08 52 59 bf 47 97 2f eb f7 8f fc c9 03 ef 26 cb 21 dd
md5 83 28 58 28 51 b8 62 ed 36 e6 d0 70 15 99 a8 38
2 Subject CN=WoSign Class 3 OV Server CA G2, O=WoSign CA Limited, C=CN
Issuer CN=Certification Authority of WoSign, O=WoSign CA Limited, C=CN
sha1 2b 43 72 46 cc ba 25 15 9e b5 be a1 62 ac 60 18 dc bf f4 72
md5 5f a4 91 6a ab d3 c9 80 09 6c eb 00 31 34 fc 3d
Enter certificate to add to trusted keystore or 'q' to quit: [1]
1
[
[
Version: V3
Subject: CN=support.windowsazure.cn, OU=Azure, O=Shanghai Blue Cloud Technology Co. Ltd, L=Shanghai, ST=Shanghai, C=CN
Signature Algorithm: SHA256withRSA, OID = 1.2.840.113549.1.1.11
Key: Sun RSA public key, 2048 bits
modulus: 24104532407647535108241621827688332263926906187163691939931462013874932504662453335625927986716086247633840840524051115364996238391743503802118690155144909240897365990040793471910633352618274034556617076873608976668528804939183424686164227185431879267461919749098227696743182875748132677719418665216178511515782485580061460364614666955611361304411692446552333333850501994838165659760614012629638654246105220036245117410486536684224500173338204500619911544787890879820586922542656204188700978168997284623863785685892268535250107770005916206905453265121667987788474107941942533485774966535690717314093662982801373356241
public exponent: 65537
Validity: [From: Tue Nov 24 19:32:28 CST 2015,
To: Fri Nov 24 19:32:28 CST 2017]
Issuer: CN=WoSign Class 3 OV Server CA G2, O=WoSign CA Limited, C=CN
SerialNumber: [ 6d899f54 35b4c5af f9f08f76 a88e0d33]
Certificate Extensions: 9
[1]: ObjectId: 1.3.6.1.5.5.7.1.1 Criticality=false
AuthorityInfoAccess [
[
accessMethod: ocsp
accessLocation: URIName: http://ocsp1.wosign.com/ca6/server3
,
accessMethod: caIssuers
accessLocation: URIName: http://aia1.wosign.com/ca6.server3.cer
]
]
[2]: ObjectId: 2.5.29.35 Criticality=false
AuthorityKeyIdentifier [
KeyIdentifier [
0000: F9 8B EC 04 38 6A 3F AA 06 C6 94 AD 73 95 2A B0 ....8j?.....s.*.
0010: C8 E6 B8 FB ....
]
]
[3]: ObjectId: 2.5.29.19 Criticality=false
BasicConstraints:[
CA:false
PathLen: undefined
]
[4]: ObjectId: 2.5.29.31 Criticality=false
CRLDistributionPoints [
[DistributionPoint:
[URIName: http://crls1.wosign.com/ca6-server3.crl]
]]
[5]: ObjectId: 2.5.29.32 Criticality=false
CertificatePolicies [
[CertificatePolicyId: [2.23.140.1.2.2]
[] ]
[CertificatePolicyId: [1.3.6.1.4.1.36305.6.3.2.1]
[PolicyQualifierInfo: [
qualifierID: 1.3.6.1.5.5.7.2.1
qualifier: 0000: 16 1D 68 74 74 70 3A 2F 2F 77 77 77 2E 77 6F 73 ..http://www.wos
0010: 69 67 6E 2E 63 6F 6D 2F 70 6F 6C 69 63 79 2F ign.com/policy/
]] ]
]
[6]: ObjectId: 2.5.29.37 Criticality=false
ExtendedKeyUsages [
clientAuth
serverAuth
]
[7]: ObjectId: 2.5.29.15 Criticality=false
KeyUsage [
DigitalSignature
Key_Encipherment
]
[8]: ObjectId: 2.5.29.17 Criticality=false
SubjectAlternativeName [
DNSName: support.windowsazure.cn
DNSName: www.windowsazure.cn
]
[9]: ObjectId: 2.5.29.14 Criticality=false
SubjectKeyIdentifier [
KeyIdentifier [
0000: 17 38 7A B7 4C 12 D9 0A 36 B5 C6 70 C3 DD DE B8 .8z.L...6..p....
0010: 46 AE 86 70 F..p
]
]
]
Algorithm: [SHA256withRSA]
Signature:
0000: 9B 9D DB 30 3E 69 B9 29 3C ED 98 98 AA 21 B0 DD ...0>i.)<....!..
0010: 0F AD 16 79 21 7D 7F 54 66 90 87 73 BF 1C 1A 8A ...y!..Tf..s....
0020: 4A 08 86 1A 31 AF 27 74 11 22 B5 4A 8B A0 23 4B J...1.'t.".J..#K
0030: BE 80 7D 51 35 96 D1 E9 2B 6F F6 3C AB E5 DF C8 ...Q5...+o.<....
0040: D7 B7 C4 63 D5 0E EC D8 AE 67 33 A6 C7 03 C1 51 ...c.....g3....Q
0050: F1 A5 4B 06 DC 37 B5 DB D2 B8 64 E9 E1 A3 8E C7 ..K..7....d.....
0060: B4 4A 96 D3 08 A7 E3 3D 64 61 13 24 6D 35 01 29 .J.....=da.$m5.)
0070: 64 F3 7D CE E2 56 8E 6A A2 E2 60 0D D8 D2 AD CF d....V.j..`.....
0080: FC 0E 5C 14 4B 6F F7 BE 71 1D 78 7A C7 09 5C 87 ..\.Ko..q.xz..\.
0090: 0F 38 AD 0D 94 19 E1 45 32 72 EA AB 78 4D 4C 67 .8.....E2r..xMLg
00A0: E8 4E 94 4B A7 28 35 3A 94 A6 97 CC 06 F0 68 74 .N.K.(5:......ht
00B0: 02 C0 D9 B3 4B 64 CD 7A 43 F0 8B B9 E8 CC 75 9A ....Kd.zC.....u.
00C0: 08 50 4F A1 CF 63 1D 80 7C 5A 8D 32 D1 09 B9 C3 .PO..c...Z.2....
00D0: B8 C0 B7 BE 6B 92 2B 80 B0 A4 8A 0E 19 16 41 42 ....k.+.......AB
00E0: 90 88 B4 CA E7 3B B5 F7 70 80 D7 10 37 41 DB 4D .....;..p...7A.M
00F0: 9E 2B 65 45 F1 CB 08 EA 83 1F 29 A1 E3 68 EA 9B .+eE......)..h..
]
Added certificate to keystore 'jssecacerts' using alias 'www.windowsazure.cn-1'
你在程式執行的當前目錄會生成一個jssecacerts檔案，你可以將它放到你的jre的lib\security目錄，也可以放在任意位置，然後再你的程式呼叫API之前指定TrustStore的位置：
System.setProperty("javax.net.ssl.trustStore","E:\\DevSpace\\jssecacerts");