Log4j - STMPAppender NoSuchProviderException stmp

Question

我想用log4j發送我的GWT項目的錯誤，但我有問題。 這是我加入的log4j.xml文件：

<appender name="EMAIL" class="org.apache.log4j.net.SMTPAppender"> 
<param name="BufferSize" value="512" /> 
<param name="SMTPHost" value="localhost" /> 
<param name="From" value="myemail@teste.com" /> 
<param name="To" value="myemail@teste.com" /> 
<param name="Subject" value="[SMTPAppender] Application message" /> 
<layout class="org.apache.log4j.PatternLayout"> 
    <param name="ConversionPattern" value="%p %d (%c{1}) %m%n" /> 
</layout> 
<filter class="org.apache.log4j.varia.LevelRangeFilter"> 
    <param name="LevelMin" value="ERROR" /> 
    <param name="LevelMax" value="FATAL" /> 
</filter> 
</appender> 

<root> 
<level value="WARN" /> 
<appender-ref ref="EMAIL" /> 
</root> 

簡單，但它給了我嘗試發送電子郵件時出現以下錯誤？

log4j:ERROR Error occured while sending e-mail notification. 
javax.mail.NoSuchProviderException: smtp 
at javax.mail.Session.getService(Session.java:806) 
at javax.mail.Session.getTransport(Session.java:728) 
at javax.mail.Session.getTransport(Session.java:668) 
at javax.mail.Session.getTransport(Session.java:648) 
at javax.mail.Session.getTransport(Session.java:705) 
at javax.mail.Transport.send0(Transport.java:192) 
at javax.mail.Transport.send(Transport.java:124) 
at org.apache.log4j.net.SMTPAppender.sendBuffer(SMTPAppender.java:330) 
at org.apache.log4j.net.SMTPAppender.append(SMTPAppender.java:215) 
at org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:251) 
at org.apache.log4j.helpers.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:66) 
at org.apache.log4j.Category.callAppenders(Category.java:206) 
at org.apache.log4j.Category.forcedLog(Category.java:391) 
at org.apache.log4j.Category.error(Category.java:305) 
at pt.keep.vault.web.server.WebServiceImpl.login(WebServiceImpl.java:1257) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:561) 
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208) 
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248) 
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) 
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362) 
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) 
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) 
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729) 
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) 
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
at org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49) 
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) 
at org.mortbay.jetty.Server.handle(Server.java:324) 
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) 
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843) 
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647) 
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) 
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) 
at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) 
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) 

我已經在我的項目中添加了activation-1.1.jar和mail.jar（1.4.6 API）。 什麼可能是錯的？

在此先感謝。

Answer 1

試試這個配置 - 它適用於我，它使用gmail作爲smtp服務器，這可能是您在開發和生產環境中的不錯選擇。我使用log4j的版本：1.2.16和Apache的log4j的，額外1.0版（這個額外的lib是neccessary只有當你使用：FilterBasedTriggeringPolicy）

<appender name="emailApp" class="org.apache.log4j.net.SMTPAppender"> 
    <param name="SMTPProtocol" value="smtps" /> 
    <param name="SMTPHost" value="smtp.gmail.com" /> 
    <param name="SMTPPort" value="465" /> 
    <param name="SMTPUsername" value="your.gmail.username" /> 
    <param name="SMTPPassword" value="xxxxx" /> 
    <param name="From" value="your.gmail.username@gmail.com" /> 
    <param name="To" value="target@devnull.com" /> 
    <param name="Subject" value="Logging from my application" /> 
    <param name="BufferSize" value="1" /> 
    <triggeringPolicy class="org.apache.log4j.rolling.FilterBasedTriggeringPolicy"> 
     <filter class="org.apache.log4j.varia.LevelRangeFilter"> 
      <param name="LevelMin" value="WARN"/> 
      <param name="LevelMax" value="FATAL"/> 
     </filter> 
    </triggeringPolicy> 
    <layout class="org.apache.log4j.PatternLayout"> 
     <param name="ConversionPattern" value="%d{dd-MM-yyyy HH:mm:ss:SSS} %-4r %-5p %c %x - %m%n"/> 
    </layout> 
</appender>