java发邮件错误javax.net.ssl.SSLHandshakeException:No appropriate protocol问题及解决
作者：把酒问天
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java发送邮件时报以下错误
如下所示：
javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher
[com.bm6api.controller.v1.AppUserController] - sendLoginAuthCodeMail 发送登录验证码邮件 : {"code":200,"info":"Success"}
[org.springframework.web.servlet.mvc.method.annotation.RequestResponseBodyMethodProcessor] - Written [{"code":200,"info":"Success"}] as "text/html" using [org.springframework.http.converter.StringHttpMessageConverter@3c3f40cb]
[org.springframework.web.servlet.DispatcherServlet] - Null ModelAndView returned to DispatcherServlet with name 'SpringMVC': assuming HandlerAdapter completed request handling
[org.springframework.web.servlet.DispatcherServlet] - Successfully completed request
[freemarker.cache] - TemplateLoader.findTemplateSource("email_login_auth_en_US.ftl"): Not found
[freemarker.cache] - TemplateLoader.findTemplateSource("email_login_auth_en.ftl"): Not found
[freemarker.cache] - TemplateLoader.findTemplateSource("email_login_auth.ftl"): Found
[freemarker.cache] - "email_login_auth.ftl"("en_US", UTF-8, parsed): using cached since
javax.mail.MessagingException: Could not connect to SMTP host: smtp.exmail.qq.com, port: 465;
nested exception is:
javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1963)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654)
at javax.mail.Service.connect(Service.java:345)
at javax.mail.Service.connect(Service.java:226)
at javax.mail.Service.connect(Service.java:246)
at com.bm6api.service.impl.MailServiceImpl.sendEmail(MailServiceImpl.java:92)
at com.bm6api.thread.EmailSendThread.run(EmailSendThread.java:34)
Caused by: javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)
at sun.security.ssl.HandshakeContext.<init>(HandshakeContext.java:171)
at sun.security.ssl.ClientHandshakeContext.<init>(ClientHandshakeContext.java:106)
at sun.security.ssl.TransportContext.kickstart(TransportContext.java:238)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:410)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:389)
at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:528)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:333)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:208)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1927)
... 6 more解决办法1
修改JDK配置，将TLSv1和TLSv1.1从配置项里去除。
配置文件路径在：
$JAVA_HOME/jre/lib/security/java.security
定位到配置文件的：
jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, RC4, DES, MD5withRSA
所在行，注释掉原来那行，复制到下方，去掉TLSv1和TLSv1.1，保存。
# Note: This property is currently used by the JDK Reference implementation.
# It is not guaranteed to be examined and used by other implementations.
#
# Example:
# jdk.tls.disabledAlgorithms=MD5, SSLv3, DSA, RSA keySize < 2048, \
# rsa_pkcs1_sha1
#jdk.tls.disabledAlgorithms=SSLv3, TLSv1, TLSv1.1, RC4, DES, MD5withRSA, \
jdk.tls.disabledAlgorithms=SSLv3, RC4, DES, MD5withRSA, \
DH keySize < 1024, EC keySize < 224, 3DES_EDE_CBC, anon, NULL, \
include jdk.disabled.namedCurves
重新运行你自己的java服务进程即可。
总结
以上为个人经验，希望能给大家一个参考，也希望大家多多支持脚本之家。