[09:37:22] (SystemUserSelfService.java:469) - com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.exmail.qq.com, 25; timeout -1 at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2118)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:712)
at javax.mail.Service.connect(Service.java:388)
at javax.mail.Service.connect(Service.java:246)
at javax.mail.Service.connect(Service.java:195)
at javax.mail.Transport.send0(Transport.java:254)
at javax.mail.Transport.send(Transport.java:124)
at cn.edu.scnu.ncsdc.sso.cloud.api.service.MailApi.send(MailApi.java:110)
at cn.edu.scnu.ncsdc.sso.cloud.bussiness.service.SystemUserSelfService.sendMessage2Email(SystemUserSelfService.java:465)
at cn.edu.scnu.ncsdc.sso.cloud.bussiness.service.SystemUserManageService.sendRegCode(SystemUserManageService.java:173)
at cn.edu.scnu.ncsdc.sso.cloud.controller.manage.ManageSelfCtrl.sendUserRegCode(ManageSelfCtrl.java:639)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at cn.edu.scnu.ncsdc.sso.cloud.controller.filter.UserFilter.doFilter(UserFilter.java:64)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)
at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:677)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
原因：
阿里云封禁25号端口
出于安全考虑，阿里云默认封禁TCP 25端口出方向的访问流量，即你无法在阿里云上的云服务器通过TCP 25端口连接外部地址。
TCP 25端口的出方向封禁可能影响您通过TCP 25 端口连接第三方邮件服务商的SMTP服务器对外部发送邮件。
如果您需要使用阿里云上的云服务器对外部发送邮件，建议您使用阿里云邮产品或者使用第三方邮件服务商提供的465端口。
如果存在特殊场景，您必须在云服务器上使用TCP 25端口进行对外连接，请在安全管控平台中提交25端口解封申请。
阿里云：投诉，无故封禁25端口 （2016-12-06）
阿里云：TCP 25端口解封申请 （2018-06-27）
解决方法
SMTP服务器：ssl://smtp.exmail.qq.com
import javax.mail.*;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;
import java.security.Security;
import java.util.List;
import java.util.Properties;
public class MailApi extends Authenticator {
// 发送邮件的props文件
private Properties props = System.getProperties();
// 发件人邮箱账号
private String username;
// 发件人邮箱密码
private String password;
// 邮箱session
private Session session;
// 发送网关
private String smtp;
//超时时间（单位：毫秒）
private Long timeout = 20000L;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getSmtp() {
return smtp;
}
public void setSmtp(String smtp) {
this.smtp = smtp;
}
public Long getTimeout() {
return timeout;
}
public void setTimeout(Long timeout) {
this.timeout = timeout;
}
private boolean createSession() {
if (session == null) {
if (this.username != null && this.password != null && this.smtp != null) {
Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());
final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.host", smtp);
props.put("mail.smtp.connectiontimeout", timeout);
props.put("mail.smtp.timeout", timeout);
props.put("mail.smtp.socketFactory.class", SSL_FACTORY);
props.put("mail.smtp.socketFactory.fallback", "false");
props.put("mail.smtp.port", "465");
props.put("mail.smtp.socketFactory.port", "465");
session = Session.getInstance(props, this);
}
}
if (session != null) {
return true;
} else {
return false;
}
}
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
/**
* 发送邮件
*
* @param recipient 收件人邮箱地址
* @param subject 邮件主题
* @param content 邮件内容
* @throws AddressException
* @throws MessagingException
*/
public void send(String recipient, String subject, Object content)
throws AddressException, MessagingException {
if (createSession()) {
// 创建mime类型邮件
final MimeMessage message = new MimeMessage(session);
// 设置发信人
message.setFrom(new InternetAddress(this.username));
// 设置收件人
message.setRecipient(RecipientType.TO, new InternetAddress(recipient));
// 设置主题
message.setSubject(subject);
// 设置邮件内容
message.setContent(content.toString(), "text/html;charset=utf-8");
// 发送
Transport.send(message);
}
}
/**
* 群发邮件
*
* @param recipients 收件人列表
* @param subject 主题
* @param content 内容
* @throws AddressException
* @throws MessagingException
*/
public void send(List recipients, String subject, Object content)
throws AddressException, MessagingException {
if (createSession()) {
// 创建mime类型邮件
final MimeMessage message = new MimeMessage(session);
// 设置发信人
message.setFrom(new InternetAddress(this.username));
// 设置收件人们
final int num = recipients.size();
InternetAddress[] addresses = new InternetAddress[num];
for (int i = 0; i < num; i++) {
addresses[i] = new InternetAddress(recipients.get(i));
}
message.setRecipients(RecipientType.TO, addresses);
// 设置主题
message.setSubject(subject);
// 设置邮件内容
message.setContent(content.toString(), "text/html;charset=utf-8");
// 发送
Transport.send(message);
}
}
}