如何在groovy上配置Logback SMTP appender？

时间：2013-11-13 14:34:03

标签： groovy logback

我正在尝试使用Groovy为我的独立Java应用程序配置Logback SMTP appender。我的logback.groovy文件内容如下：

    import ch.qos.logback.classic.PatternLayout
    import ch.qos.logback.classic.encoder.PatternLayoutEncoder
    import ch.qos.logback.classic.net.SMTPAppender
    import ch.qos.logback.core.ConsoleAppender

    import static ch.qos.logback.classic.Level.INFO

    def common_log_date_format = "{MM/dd HH:mm:ss:SSS}"
    def common_log_conversionpattern = "[%d${common_log_date_format}] [%t] [%c{0}] [%p]: %m%n"

    appender("STDOUT", ConsoleAppender) {
      encoder(PatternLayoutEncoder) {
        pattern = "${common_log_conversionpattern}"
      }
    }

    appender("EMAIL", SMTPAppender) {
      smtpHost = "xxxx"
      to = "yyyy"
      from = "zzzz"
      subject = "[${app.name}] [%marker] [%p]"
      asynchronousSending = false
      layout(PatternLayout) {
        pattern = "${common_log_conversionpattern}"
      }
    }

    root(INFO, ["STDOUT", "EMAIL"])

但是这个配置不起作用，它在app启动期间失败：

Failed to instantiate [ch.qos.logback.classic.LoggerContext]
Reported exception:
java.lang.NullPointerException: Cannot get property 'name' on null object
at org.codehaus.groovy.runtime.NullObject.getProperty(NullObject.java:56)
at org.codehaus.groovy.runtime.InvokerHelper.getProperty(InvokerHelper.java:168)
at org.codehaus.groovy.runtime.callsite.NullCallSite.getProperty(NullCallSite.java:44)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callGetProperty(AbstractCallSite.java:227)
at Script1$_run_closure2.doCall(Script1.groovy:22)
at Script1$_run_closure2.doCall(Script1.groovy)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:272)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:909)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:39)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
at org.codehaus.groovy.runtime.callsite.PogoMetaClassSite.call(PogoMetaClassSite.java:54)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
at ch.qos.logback.classic.gaffer.ConfigurationDelegate.appender(ConfigurationDelegate.groovy:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at org.codehaus.groovy.runtime.metaclass.MixinInstanceMetaMethod.invoke(MixinInstanceMetaMethod.java:53)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite$PogoMetaMethodSiteNoUnwrapNoCoerce.invoke(PogoMetaMethodSite.java:313)
at org.codehaus.groovy.runtime.callsite.PogoMetaMethodSite.callCurrent(PogoMetaMethodSite.java:52)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:49)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
at Script1.run(Script1.groovy:18)
at Script1$run.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:45)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:108)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:112)
at ch.qos.logback.classic.gaffer.GafferConfigurator.run(GafferConfigurator.groovy:64)
at ch.qos.logback.classic.gaffer.GafferConfigurator$run.callCurrent(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:49)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:133)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:141)
at ch.qos.logback.classic.gaffer.GafferConfigurator.run(GafferConfigurator.groovy:40)
at ch.qos.logback.classic.gaffer.GafferUtil.runGafferConfiguratorOn(GafferUtil.java:43)
at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:65)
at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:148)
at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)
at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:128)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:107)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:295)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:269)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
at com.revere.edm.job.Loader.<init>(Loader.java:13)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
at java.lang.Class.newInstance(Class.java:374)
at com.revere.shell.Shell.execute(Shell.java:233)
at com.revere.shell.Shell.main(Shell.java:64)

我无法理解这条消息的原因。如果我从配置中删除SMTP Appender配置部分 - 应用程序工作和日志正常。 如何使用groivy配置使SMTP appende正常工作？

我的环境是：Ubuntu 12.04，logback classic / core 1.0.13，Groovy-all jar版本2.2.0-rc-3，Janino 2.6.1，javax.mail 1.4。

2 个答案:

答案 0 :(得分：1)

这是我对groovy＆amp; amp;的解决方案grails 3.2.0 appender with smtp gmail，用于测试和生产环境：

import grails.util.BuildSettings
import grails.util.Environment
import ch.qos.logback.classic.html.HTMLLayout
import ch.qos.logback.classic.encoder.PatternLayoutEncoder
import ch.qos.logback.classic.net.SMTPAppender
import ch.qos.logback.core.ConsoleAppender

// See http://logback.qos.ch/manual/groovy.html for details on configuration
appender('STDOUT', ConsoleAppender) {
    encoder(PatternLayoutEncoder) {
        pattern = "%level %logger - %msg%n"
    }
}

appender("EMAIL", SMTPAppender) {
    smtpHost = "smtp.gmail.com"
    smtpPort = 587
    STARTTLS = true
    username = "email@gmail.com"
    password = "password"
    to = "emailRecepter@domain.com"
    from = "email@gmail.com"
    subject = "Logback Sam error"
    asynchronousSending = false
    layout(HTMLLayout) {
        pattern = "%level %logger - %msg%n"
    }
    println "Setting EMAIL property"
}

def targetDir = BuildSettings.TARGET_DIR
if (Environment.isDevelopmentMode() && targetDir != null) {
    appender("FULL_STACKTRACE", FileAppender) {
        file = "${targetDir}/stacktrace.log"
        append = true
        encoder(PatternLayoutEncoder) {
            pattern = "%level %logger - %msg%n"
        }
    }
    logger("StackTrace", ERROR, ['FULL_STACKTRACE'], false)
    root(ERROR, ['STDOUT', 'FULL_STACKTRACE'])

}
else {
    root(ERROR, ['STDOUT','EMAIL'])
}

答案 1 :(得分：0)

好的，我发现了自己的错误。 app.name是包含配置的属性，在将配置更新为groovy后没有包含。问题解决了。

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