解决java发邮件错误javax.net.ssl.SSLHandshakeException: No appropriate protocol

java发送邮件时报以下错误信息:
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.(HandshakeContext.java:171)
        at sun.security.ssl.ClientHandshakeContext.(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。

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