om.sun.mail.util.MailConnectException: Couldn't connect to host, port: localhost, 465; timeout -1;_com.sun.mail.util.mailconnectexception: couldn't c-优快云博客

本文记录了一次使用JavaMail发送邮件时遇到的连接失败问题及解决过程。作者在尝试通过localhost的465端口发送邮件时，遭遇了连接被拒绝的错误。经过排查发现，问题在于SMTP主机配置的参数名输入错误，将mail.host误写为mail.stmp.host。纠正这一错误后，邮件发送功能恢复正常。

晚上用java mail实现邮件的发送功能出现了以下错误

com.sun.mail.util.MailConnectException: Couldn't connect to host, port: localhost, 465; timeout -1;
      nested exception is:
    	java.net.ConnectException: failed to connect to localhost/127.0.0.1 (port 465) after 90000ms: isConnected failed: ECONNREFUSED (Connection refused)
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2209)
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:740)
        at javax.mail.Service.connect(Service.java:366)
        at javax.mail.Service.connect(Service.java:246)
        at javax.mail.Service.connect(Service.java:267)
        at com.example.fyf.myemail.MainActivity.sendMail(MainActivity.java:193)
        at com.example.fyf.myemail.MainActivity.access$000(MainActivity.java:62)
        at com.example.fyf.myemail.MainActivity$1$1.run(MainActivity.java:96)
        at java.lang.Thread.run(Thread.java:818)

对比了之前发送正确的代码，原来自己修改了某个参数

 props.setProperty("mail.host",  "smtp.qq.com");

改成了

 props.setProperty("mail.stmp.host",  "smtp.qq.com");

具体原因自己还没搞懂，希望大家可以借鉴一下