本文介绍了Logback:如何将日志写入文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我需要将Logback添加到我的项目。这是我的测试类:
public class Head implements Runnable {
Thread trd;
Head() {
trd = new Thread(this);
trd.start();
}
static Logger logger = LoggerFactory.getLogger(Head.class);
@Override
public void run() {
MDC.put("logName", "LOG_NAME");
logger.warn("test1");
logger.info("test2");
logger.error("test");
MDC.remove("logName");
}
public static void main(String[] args) {
String URL = "logback-test.xml";
System.out.println(ClassLoader.getSystemResource(URL));
int count = 1;
while(count<=3){
Head head = new Head();
count++;
}
}
}
以下是我的Logback-test.xml文件:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="FILE" class="ch.qos.logback.classic.sift.SiftingAppender">
<discriminator>
<key>logName</key>
<defaultValue>test</defaultValue>
</discriminator>
<sift>
<appender name="FILE-${logName}" class="ch.qos.logback.core.FileAppender">
<file>D:/tmp/${logName}.log</file>
<append>false</append>
<layout class="ch.qos.logback.classic.PatternLayout">
<pattern>%d [%thread] %level %mdc %logger{35} - %msg%n</pattern>
</layout>
</appender>
</sift>
</appender>
<root level="ALL">
<appender-ref ref="FILE" />
</root>
</configuration>
我添加了以下groovy依赖项:
compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.21'
compile group: 'org.slf4j', name: 'jcl-over-slf4j', version: '1.7.21'
compile group: 'ch.qos.logback', name: 'logback-classic', version: '1.1.7'
compile group: 'ch.qos.logback', name: 'logback-core', version: '1.1.7'
compile group: 'ch.qos.logback', name: 'logback-access', version: '1.1.7'
因此,我预计日志将保存到文件D:/tMP/LOG_NAME.log中,但日志仅写入控制台。您能帮忙解决这个问题吗?添加调试选项后出现错误:
Failed to instantiate [ch.qos.logback.classic.LoggerContext]
Reported exception:
file:/D:/my_tests/build/resources/main/logback-test.xml
groovy.lang.MissingMethodException: No signature of method: static ch.qos.logback.core.status.OnConsoleStatusListener.addNewInstanceToContext() is applicable for argument types: (ch.qos.logback.classic.LoggerContext) values: [ch.qos.logback.classic.LoggerContext[default]]
at groovy.lang.MetaClassImpl.invokeStaticMissingMethod(MetaClassImpl.java:1500)
at groovy.lang.MetaClassImpl.invokeStaticMethod(MetaClassImpl.java:1486)
at org.codehaus.groovy.runtime.callsite.StaticMetaClassSite.call(StaticMetaClassSite.java:53)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:48)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:113)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:125)
at ch.qos.logback.classic.gaffer.GafferConfigurator.run(GafferConfigurator.groovy:65)
at ch.qos.logback.classic.gaffer.GafferConfigurator$run.callCurrent(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallCurrent(CallSiteArray.java:52)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:154)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:166)
at ch.qos.logback.classic.gaffer.GafferConfigurator.run(GafferConfigurator.groovy:44)
at ch.qos.logback.classic.gaffer.GafferUtil.runGafferConfiguratorOn(GafferUtil.java:43)
at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:67)
at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:150)
at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:84)
at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
at org.slf4j.LoggerFactory.bind(LoggerFactory.java:150)
at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:124)
at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:412)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:357)
at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:383)
at com.aerlingus.uita.utils.Head.<clinit>(Head.java:20)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:122)
推荐答案
我使用了您的代码(对日志文件路径做了一些细微的更改,从D:/tmp/
更改为/tmp/
)。运行情况与预期一致。
这意味着,您在这里提供的内容是正确的。问题是由其他原因引起的。
如果您可以在控制台中看到日志消息,则最有可能的情况是logback-test.xml
未被读取。类路径中有logback.groovy
,或者logback-test.xml
甚至不在类路径中。请提供系统属性logback.debug=true
(例如-Dlogback.debug=true
),并在控制台中检查Logback打印的消息,以确定您的问题
这篇关于Logback:如何将日志写入文件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!