maven jetty插件log4j配置

Question

我有一个带有maven的java web应用程序.
我正在使用jetty在开发期间运行它(通过使用maven jetty插件)

我将我的log4j.properties文件放在src/main/resources下,并在按预期部署时复制到WEB-INF/classes下.

在我的log4j.properties文件中,我定义了一个过滤器变量,在部署时,它也会使用实际值进行过滤.

在src/main/resources下的log4j.properties中;

log4j.appender.FILE.File = ${config-gui.log-file}

在WEB-INF/classes下的log4j.properties中(使用过滤部署后);

log4j.appender.FILE.File = /tmp/mylogfile.log

我的问题是; 当我运行mvn jetty时,我遇到了以下错误:运行

log4j:ERROR setFile(null,true) call failed.<br />
java.io.FileNotFoundException:  (No such file or directory)
at java.io.FileOutputStream.openAppend(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:177)
at java.io.FileOutputStream.<init>(FileOutputStream.java:102)
at org.apache.log4j.FileAppender.setFile(FileAppender.java:289)
at org.apache.log4j.FileAppender.activateOptions(FileAppender.java:163)
at org.apache.log4j.DailyRollingFileAppender.activateOptions(DailyRollingFileAppender.java:215)
at org.apache.log4j.config.PropertySetter.activate(PropertySetter.java:256)
at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:132)
at org.apache.log4j.config.PropertySetter.setProperties(PropertySetter.java:96)
at org.apache.log4j.PropertyConfigurator.parseAppender(PropertyConfigurator.java:654)
at org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:612)
at org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:509)
at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:415)
at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:441)
at org.apache.log4j.helpers.OptionConverter.selectAndConfigure(OptionConverter.java:470)
at org.apache.log4j.LogManager.<clinit>(LogManager.java:122)
at org.slf4j.impl.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:73)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:88)
at com.pribas.bucherplayerconfiggui.util.LoggerUtil.getLogger(LoggerUtil.java:10)
at com.pribas.bucherplayerconfiggui.Initialization.<clinit>(Initialization.java:22)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.mortbay.jetty.webapp.WebXmlConfiguration.newListenerInstance(WebXmlConfiguration.java:649)
at org.mortbay.jetty.webapp.WebXmlConfiguration.initListener(WebXmlConfiguration.java:630)
at org.mortbay.jetty.webapp.WebXmlConfiguration.initWebXmlElement(WebXmlConfiguration.java:367)
at org.mortbay.jetty.plus.webapp.AbstractConfiguration.initWebXmlElement(AbstractConfiguration.java:190)
at org.mortbay.jetty.webapp.WebXmlConfiguration.initialize(WebXmlConfiguration.java:289)
at org.mortbay.jetty.plus.webapp.AbstractConfiguration.initialize(AbstractConfiguration.java:133)
at org.mortbay.jetty.webapp.WebXmlConfiguration.configure(WebXmlConfiguration.java:222)
at org.mortbay.jetty.plus.webapp.AbstractConfiguration.configure(AbstractConfiguration.java:113)
at org.mortbay.jetty.webapp.WebXmlConfiguration.configureWebApp(WebXmlConfiguration.java:180)
at org.mortbay.jetty.plus.webapp.AbstractConfiguration.configureWebApp(AbstractConfiguration.java:96)
at org.mortbay.jetty.plus.webapp.Configuration.configureWebApp(Configuration.java:124)
at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1217)
at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:510)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:448)
at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:110)
at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:39)
at org.mortbay.jetty.plugin.AbstractJettyRunMojo$1.filesChanged(AbstractJettyRunMojo.java:409)
at org.mortbay.util.Scanner.reportBulkChanges(Scanner.java:493)
at org.mortbay.util.Scanner.reportDifferences(Scanner.java:359)
at org.mortbay.util.Scanner.scan(Scanner.java:286)
at org.mortbay.util.Scanner$1.run(Scanner.java:246)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)

我认为这个错误是因为它看到了log4j.properties文件,它位于src/main/resources下(其中appender的文件参数不可接受)而不是WEB-INF/classes下的文件.

我想要maven jetty插件忽略在src/main/resources下的log4j.properties文件,并在WEB-INF/classes下看到它.我怎样才能做到这一点？

或者如果这个错误与我的想法无关,我该如何解决？thx提前.

Answer 1

我想,你很难保证log4j.properties在你的罐子里或者罐子里会使用哪种WEB-INF/classes.它取决于具体的类加载器实现(在Tomcat或Jetty中),它可以看到WEB-INF/classes/log4j.properties或WEB-INF/libs/yourlib.jar:/log4j.properties.所以你需要在这里或那里过滤:)

使用Maven文件,你可以配置<excludes>你的资源,并使用此配置文件用于建立为Tomcat部署Web应用程序.

也许更好的解决方案将是重命名/src/main/resources/log4j.properties到/src/main/resources/log4j-jetty.properties,然后通过码头插件配置Log4j来使用资源:

<plugin>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>maven-jetty-plugin</artifactId>
    <configuration>
        ...
        <systemProperties>
            <systemProperty>
                <name>log4j.configuration</name>
                <value>log4j-jetty.properties</value>
            </systemProperty>
        </systemProperties>
    </configuration>
</plugin>