java.net.UnknownHostException和javax.mail.MessagingException的问题

Question

javax.mail.MessagingException: Unknown SMTP host: mail02.secpg.com;
  nested exception is:
java.net.UnknownHostException: mail02.secpg.com
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1225)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:322)
at javax.mail.Service.connect(Service.java:236)
at javax.mail.Service.connect(Service.java:137)
at javax.mail.Service.connect(Service.java:86)
at javax.mail.Transport.send0(Transport.java:150)
at javax.mail.Transport.send(Transport.java:80)
at cn.edu.tongji.cims.wade.peoplemanagement.EmailSender.sendMail(EmailSender.java:268)
at cn.edu.tongji.cims.wade.navigator.AddProjectDialog$6$1.run(AddProjectDialog.java:850)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:123)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3325)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2971)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.block(ModalContext.java:158)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:326)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:479)
at cn.edu.tongji.cims.wade.navigator.AddProjectDialog.buttonPressed(AddProjectDialog.java:430)
at org.eclipse.jface.dialogs.Dialog$3.widgetSelected(Dialog.java:660)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)
at org.eclipse.jface.window.Window.open(Window.java:796)
at cn.edu.tongji.cims.wade.action.CreateProjectAction$1.run(CreateProjectAction.java:59)
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:67)
at cn.edu.tongji.cims.wade.action.CreateProjectAction.run(CreateProjectAction.java:46)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:499)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:539)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1930)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1894)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:422)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at cn.edu.tongji.cims.wade.Application.run(Application.java:27)
at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.core.launcher.Main.invokeFramework(Main.java:336)
at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
at org.eclipse.core.launcher.Main.run(Main.java:977)
at org.eclipse.core.launcher.Main.main(Main.java:952)
有哪位大牛能给解释一下这些异常什么意思？？？

Answer 1

问题都说明了:"未知的主机异常"--smtp识别不了这个主机
javax.mail.MessagingException: Unknown SMTP host: mail02.secpg.com;
  nested exception is:
java.net.UnknownHostException: mail02.secpg.com一般主机是这样的   smpt.gmail.com或smpt.qq.com,smpt.163.com  每一种主机都有端口的,
都可以再网站查到.普遍是25,但gmail是个特殊的
Lz的mail02.secpg.com 没见过

Answer 2

smtp端口的问题？
建议楼主去异常网去查查