Java 8支持TLS 1.2，但Java 7不支持
当我尝试使用Java 7连接URL（支持TLS 1.2的供应商URL之一，之前在Java 7中工作正常）时，我发现了以下exception：
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1943) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1059) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1294) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1321) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1305) at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:523) at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1087) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:250) 所以我启用了-Dhttps.protocols=TLSv1.2 ， -Djavax.net.ssl.trustStore=和-Djavax.net.ssl.trustStorePassword=
之后我也遇到了同样的问题。 然后我将Java版本升级到8，以便它可以连接到URL而不会出现任何SSL问题。
根据这篇博客 ，在Java 8中，TLS 1.2是默认的，TLS 1.2可以使用Java 7中的属性-Dhttps.protocols进行调整。在Java 7中，如果我启用了上面的属性，我可以无问题地访问URL通过我过去的经验。
但是对于URL，我被要求升级Java版本。 上面提到的Java 7中的Exception可能导致哪些供应商方面的更改？ 如果没有升级Java 8，我无法访问URL？
当尝试-Djavax.net.debug=all我得到了以下日志
Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Ignoring unavailable cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Ignoring unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 Ignoring unavailable cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 Ignoring unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA Ignoring unavailable cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Ignoring unavailable cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA Ignoring unavailable cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA Ignoring unavailable cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 Ignoring unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA256 Ignoring unavailable cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 Ignoring unavailable cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 Ignoring unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 Ignoring unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 Ignoring unavailable cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA Ignoring unavailable cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA Ignoring unsupported cipher suite: TLS_RSA_WITH_AES_128_CBC_SHA256 Allow unsafe renegotiation: false Allow legacy hello messages: true Is initial handshake: true Is secure renegotiation: false Allow unsafe renegotiation: false Allow legacy hello messages: true Is initial handshake: true Is secure renegotiation: false qtp11284997-17, setSoTimeout(0) called qtp11284997-18, setSoTimeout(0) called %% No cached client session %% No cached client session *** ClientHello, TLSv1.2 RandomCookie: *** ClientHello, TLSv1.2 RandomCookie: GMT: 1465902650 bytes = { GMT: 1465902650 bytes = { 113156, , 91, 215, 64, 8, 63, 32, 255, 223, 156, 170, 50, 244, 156, 18, 241, 241, 229, 169, 35, 160, 22, 15, 111, 204, 231, 28, 25, 203, 70, 164, 77, 14, 181, 126, 159, 152, 111, 221, 254, 59 } Session ID: {} Cipher Suites: [TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_RC4_128_SHA, TLS_EMPTY_RENEGOTIATION_INFO_SCSV, TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_RC4_128_MD5, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA] Compression Methods: { 0 } Extension elliptic_curves, curve names: {secp256r1, sect163k1, sect163r2, secp192r1, secp224r1, sect233k1, sect233r1, sect283k1, sect283r1, secp384r1, sect409k1, sect409r1, secp521r1, sect571k1, sect571r1, secp160k1, secp160r1, secp160r2, sect163r1, secp192k1, sect193r1, sect193r2, secp224k1, sect239k1, secp256k1} Extension ec_point_formats, formats: [uncompressed] Extension signature_algorithms, signature_algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA224withECDSA, SHA224withRSA, SHA1withECDSA, SHA1withRSA, SHA1withDSA, MD5withRSA Extension server_name, server_name: [host_name: postprod1.ratetiger.com] *** [write] MD5 and SHA1 hashes: len = 211 0000: 01 00 00 CF 03 03 57 60 E6 3A 71 D7 40 08 3F FF ......W`.:q.@.?. 0010: 9C 32 9C F1 E5 23 16 6F E7 19 46 A4 4D 0E B5 7E .2...#.o..FM.. 0020: 9F 98 6F DD FE 3B 00 00 2A 00 33 C0 04 00 16 00 ..o..;..*.3..... 0030: 05 C0 03 C0 11 C0 02 C0 07 C0 13 C0 08 C0 0C 00 ................ 0040: FF C0 0D C0 0E C0 09 00 2F C0 12 00 04 00 32 00 ......../.....2. 0050: 13 00 0A 01 00 00 7C 00 0A 00 34 00 32 00 17 00 ..........4.2... 0060: 01 00 03 00 13 00 15 00 06 00 07 00 09 00 0A 00 ................ 0070: 18 00 0B 00 0C 00 19 00 0D 00 0242, E119, 001, 0F19, 00164, 1081, 3, 0063, 176, 255, .42, .23, .252, .164 } Session ID: .{} ..Cipher Suites: [TLS_DHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDHE_RSA_WITH_RC4_128_SHA, TLS_ECDH_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_RC4_128_SHA, TLS_EMPTY_RENEGOTIATION_INFO_SCSV, TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_RC4_128_MD5, TLS_DHE_DSS_WITH_AES_128_CBC_SHA, SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA, SSL_RSA_WITH_3DES_EDE_CBC_SHA] Compression Methods: { .0 } ........ 0080: 11Extension elliptic_curves, curve names: {secp256r1, sect163k1, sect163r2, secp192r1, secp224r1, sect233k1, sect233r1, sect283k1, sect283r1, secp384r1, sect409k1, sect409r1, secp521r1, sect571k1, sect571r1, secp160k1, secp160r1, secp160r2, sect163r1, secp192k1, sect193r1, sect193r2, secp224k1, sect239k1, secp256k1} 00Extension ec_point_formats, formats: [uncompressed] 02Extension signature_algorithms, signature_algorithms: SHA512withECDSA, SHA512withRSA, SHA384withECDSA, SHA384withRSA, SHA256withECDSA, SHA256withRSA, SHA224withECDSA, SHA224withRSA, SHA1withECDSA, SHA1withRSA, SHA1withDSA, MD5withRSA Extension server_name, server_name: [host_name: postprod1.ratetiger.com] *** [write] MD5 and SHA1 hashes: len = 211 0000: 01 00 00 CF 03 03 57 60 E6 3A 9C 5B 20 DF AA F4 ......W`.:.[ ... 0010: 12 F1 A9 A0 0F CC 1C CB F2 77 01 13 A4 51 03 3F .........w...Q.? 0020: B0 FF 2A 17 FC A4 00 00 2A 00 33 C0 04 00 16 00 ..*.....*.3..... 0030: 05 C0 03 C0 11 C0 02 C0 0700 C0 131 C02 0 008 0 C04 0C 000 0 . 0.5. .0.0 14 00 08 00 16 00 ....................... .0.0.4.0 0090: : 0BF 00F 0 C02 0 01D 0 C00 0 00E 0 C0D 0 009 1A0 000 1 8 2 06F 0 C03 1 062 0 001 0 05 ................ 00A0: 03 05 01 04 03 04 01 03 03 03 01 02 03 02 01 02 ................ 00B0: 02 01 01 00 00 00 1C 00 1A 00 00 17 70 6F 73 74 ............post 00C0: 70 72 6F 64 31 2E 72 61 74 65 74 69 67 65 72 2E prod1.ratetiger. 00D0: 63 6F 6D com 4 00 32 00 ......../.....2. 0050: 13 00 0A 01 00 00 7C 00 0A 00 34 00 32 00 17 00 ..........4.2... 0060: 01 00 03 00 13 00 15 00 06 00 07 00 09 00 0A 00 ................ 0070: 18 00 0B 00 0C 00 19 00 0D 00 0E 00 0F 00 10 00 qtp11284997-17, WRITE: TLSv1.2 Handshake, length = 211 .........[Raw write]: length = 216 ......0.0 0000: 168 030 0: 113 0 000 D 023 0 010 0 120 00 040 000 05 00C 14F 0 030 0 083 00 165 007 6.0. .E6. .3.A. .7.1. . .......... .0.0.9.0.: .W`0.:qB 000 020 011 000 0: D70 4 0D0 00 0 1A8 00 183 06F 03 06F 01F 05 9 C. .3.2. .9.C. . .F.1. .E.5. .2.3 00A0 : 031 056 0 6F1 E 047 0 193 4 046 01 0 3.@ . 03? 0.3.2 01. 02. 0.#3.o 02. 01. F02 0 0.2.0.: .A.4. .4.D. .0.E. .B.5. .7E 9F0 980 6FB 0 D: D02 FE 01 3B01 0000 0000 2A00 001C 3300 1A. M00. 00. 1.7..o .7.;0. .*6.3F 0030 : C07 043 0 740 1.6. .0.0. .0.5. .C.0. .post0 300C0 : 70 C072 6F1 641 3 C0 02 C0 07 C0 13 ................ 0040: C0 08 C0 0C 00 FF C0 0D C0 0E C0 09 00 2F C0 12 ............./.. 0050: 00 04 00 32 00 13 00 0A 01 00 00 7C 00 0A 00 34 ...2...........4 0060: 00 32 00 17 00 01 00 03 00 13 00 15 00 06 00 07 .2.............. 0070: 00 09 00 0A 00 18 00 0B 00 0C 00 19 00 0D 00 0E ................ 0080: 00 0F 00 10 00 11 00 02 00 12 00 04 00 05 00 14 ...1. .2........... 0090: 00 08 00 16 00 0B 00 02 01 00 00 0D 00 1A 00 18 ................ 00A0: 06 03 06 01 05 03 05 01 04 03 04 01 03 03 03 01 ............E 72 61 74 65 74 69 67 65 72 2E prod1.ratetiger. 00D0: 63 6F 6D com qtp11284997-18, WRITE: TLSv1.2 Handshake, length = 211 [Raw write]: length = 216 0000: 16 03 03 00 D3 01 00 00 CF 03 03 57 60 E6 3A 9C ...........W`.:. 0010: 5B 20 DF AA F4 12 F1 A9 A0 0F CC 1C CB F2 77 01 [ .............. 00B0: 02 03 02 01 02 02 01 01 00 00 00 1C 00 1A 00 00 ................ 00C0: 17 70 6F 73 74 70 72 6F 64 31 2E 72 61 74 65 74 .postprod1.ratet 00D0: 69 67 65 72 2E 63 6F 6D iger.com ..w. 0020: 13 A4 51 03 3F B0 FF 2A 17 FC A4 00 00 2A 00 33 ..Q.?..*.....*.3 0030: C0 04 00 16 00 05 C0 03 C0 11 C0 02 C0 07 C0 13 ................ 0040: C0 08 C0 0C 00 FF C0 0D C0 0E C0 09 00 2F C0 12 ............./.. 0050: 00 04 00 32 00 13 00 0A 01 00 00 7C 00 0A 00 34 ...2...........4 0060: 00 32 00 17 00 01 00 03 00 13 00 15 00 06 00 07 .2.............. 0070: 00 09 00 0A 00 18 00 0B 00 0C 00 19 00 0D 00 0E ................ 0080: 00 0F 00 10 00 11 00 02 00 12 00 04 00 05 00 14 ................ 0090: 00 08 00 16 00 0B 00 02 01 00 00 0D 00 1A 00 18 ................ 00A0: 06 03 06 01 05 03 05 01 04 03 04 01 03 03 03 01 ................ 00B0: 02 03 02 01 02 02 01 01 00 00 00 1C 00 1A 00 00 ................ 00C0: 17 70 6F 73 74 70 72 6F 64 31 2E 72 61 74 65 74 .postprod1.ratet 00D0: 69 67 65 72 2E 63 6F 6D iger.com [Raw read]: length = 5 0000: 15 03 03 00 02 ..... [Raw read]: length = 2 [Raw read]: length = 5 0000: 02000 280 : 15 03 03 00 02 .( ..qtp11284997-17, READ: TLSv1.2 Alert, length = 2 ..qtp11284997-17, RECV TLSv1 ALERT: fatal, handshake_failure . [Raw read]: length = 2 0000: 02 28qtp11284997-17, called closeSocket() qtp11284997-17, handling exception: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure qtp11284997-17, called close() .(qtp11284997-17, called closeInternal(true) qtp11284997-18, READ: TLSv1.2 Alert, length = 2 qtp11284997-18, RECV TLSv1 ALERT: fatal, handshake_failure 2016-06-15 10:53:06,722 WARN [ride.intermediate.connect.ratetiger.ConnectRateTiger] -- Exception in InputStream Close--java.lang.NullPointerException qtp11284997-17, called close() qtp11284997-17, called closeInternal(true) qtp11284997-18, called closeSocket() qtp11284997-18, handling exception: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure qtp11284997-18, called close() qtp11284997-18, called closeInternal(true)
如果使用SSLLabs测试URL，则网站允许4个密码：
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
但是如果您读取Java 7的密码列表，则不支持密码（也可以在调试消息中看到）。 即使为Java 7启用TLS 1.2，我认为它找不到任何有效的密码。 该网站必须改变其配置。
如果不升级到Java 8，您可以将Java 7版本升级到1.7.0_131-b31
对于Oracle站点中的JRE 1.7.0_131-b31：
TLSv1.2 and TLSv1.1 are now enabled by default on the TLS client end-points. This is similar behavior to what already happens in JDK 8 releases.
在开始基于swing的应用程序时，我也遇到了类似的问题。 似乎在某些版本的java 7中，默认情况下不启用TLS1.2。 我启用它然后它工作正常。
您可以从Java控制面板 – >高级 – >单击“使用TLS 1.2”启用它
希望它也适用于您的情况。