这个错误今天让我大受折磨
写好的程序，在我这里啥事没有。结果到别人那里就报错
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DEBUG: setDebug: JavaMail version 1.4ea
DEBUG: getProvider() returning javax.mail.Provider[TRANSPORT,smtp,com.sun.mail.smtp.SMTPTransport,Sun Microsystems, Inc]
DEBUG SMTP: useEhlo true, useAuth true
DEBUG SMTP: trying to connect to host "smtp.126.com", port 25, isSSL false
220 126.com Anti-spam GT for Coremail System (126com[20090903])
DEBUG SMTP: connected to host "smtp.126.com", port: 25
EHLO 1318-灏(:
502 Error: command not implemented
EHLO 1318-灏(:
502 Error: command not implemented
javax.mail.MessagingException: 502 Error: command not implemented
at com.sun.mail.smtp.SMTPTransport.issueCommand(SMTPTransport.java:1328)
at com.sun.mail.smtp.SMTPTransport.helo(SMTPTransport.java:801)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:345)
at javax.mail.Service.connect(Service.java:275)
at javax.mail.Service.connect(Service.java:156)
at cns.mail.SendMail.send(SendMail.java:340)
at org.apache.jsp.job.sendmail_jsp._jspService(sendmail_jsp.java:143)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:331)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:595)
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找了N久原因，还是搞不定。
最终我觉得不是程序问题，是机器问题。
对比了错误信息，发现它输出的计算机名是乱码，也就是汉字，我的机器名是英文。难道因为这个？
修改机器名为汉字，重启，一测，果然是因为这个
崩溃，崩溃