记录器slf4j没有使用已配置的登录级别

Question

问题不是测试中的记录器--嗯--是的，它们也是--真正的问题是运行的代码部分中的记录器（我所有的程序记录器）被设置为错误的日志级别。当程序测试被配置时，他们不会获得日志记录。

但是，当使用logback.goovy文件初始化logback时，项目报告的结果是正确的。但是，实际日志记录级别设置为跟踪或全部

从下面的输出来看，很明显logback已经配置为info。但是TRACE（最后一行）处的第一个项目日志语句显示该语句没有被拾取。

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running groovy.text.StreamingTemplateEngineTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.245 sec
Running net.abcd.templating.InlinerTest
01:22:15,265 |-INFO in ch.qos.logback.classic.gaffer.ConfigurationDelegate@1e8c3cb - Added status listener of type [ch.qos.logback.core.status.OnConsoleStatusListener]
01:22:15,290 |-INFO in ch.qos.logback.classic.gaffer.ConfigurationDelegate@1e8c3cb - Setting ReconfigureOnChangeFilter scanning period to 5 minutes
01:22:15,290 |-INFO in ReconfigureOnChangeFilter{invocationCounter=0} - Will scan for changes in [[C:\Users\ABDC\Dropbox\workspace\abcd\AbcdTemplating\conf\logback.groovy]] every 300 seconds. 
01:22:15,290 |-INFO in ch.qos.logback.classic.gaffer.ConfigurationDelegate@1e8c3cb - Adding ReconfigureOnChangeFilter as a turbo filter
01:22:15,312 |-INFO in ch.qos.logback.classic.gaffer.ConfigurationDelegate@1e8c3cb - About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
01:22:15,316 |-INFO in ch.qos.logback.classic.gaffer.ConfigurationDelegate@1e8c3cb - Naming appender as [STDOUT]
***********************************************************

LOGGING MODE PROPERTY 'net.abcd.logging.level' SET TO: [info]
IT CAN BE SET TO: OFF, ERROR, WARN, INFO, DEBUG, TRACE, ALL, INFO

***********************************************************
getLogLevel() returned 'INFO'
01:22:15,496 |-INFO in ch.qos.logback.classic.gaffer.ConfigurationDelegate@1e8c3cb - Setting level of logger [ROOT] to INFO
01:22:15,532 |-INFO in ch.qos.logback.classic.gaffer.ConfigurationDelegate@1e8c3cb - Attaching appender named [STDOUT] to Logger[ROOT]
01:22:15.846 [main] TRACE net.abcd.templating.Inliner - Document:

displayStatusOnConsole()
scan('5 minutes')  // Scan for changes every 5 minutes.
setupAppenders()
setupLoggers()

def displayStatusOnConsole() {
    statusListener OnConsoleStatusListener 
}

def setupAppenders() {
    appender('STDOUT', ConsoleAppender) {
        encoder(PatternLayoutEncoder) {
            pattern = "%d{HH:mm:ss.SSS} [%thread] %-5level %-16logger{50} - %msg%n"
        }
    }
}


def setupLoggers() {    
    def loglevel = getLogLevel() 
    println("getLogLevel() returned '${loglevel}'")
    root(loglevel, ['STDOUT'])
}

def getLogLevel() {
    def mode = System.getProperty('net.abcd.logging.level', '')
    println("***********************************************************")
    println("")
    println("LOGGING MODE PROPERTY 'net.abcd.logging.level' SET TO: [${mode}]")
    println("IT CAN BE SET TO: OFF, ERROR, WARN, INFO, DEBUG, TRACE, ALL, INFO")
    println("")
    println("***********************************************************")
    switch(mode.toLowerCase()){
    case 'off':
        return OFF
    case 'error':
        return ERROR
    case 'warn':
        return WARN
    case 'info':
        return INFO
    case 'debug':
        return DEBUG
    case 'trace':
        return TRACE
    case 'all':
        return ALL
    default:
        return INFO
    }
}

Answer 1

我在junit测试中也遇到了类似的问题。我找不到好的解决办法。我用下面的工作围绕：

import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.Logger;
import org.slf4j.LoggerFactory;
...
static Logger logger;
static{
   // Logger.ROOT_LOGGER_NAME == "ROOT"
   logger = ((Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME));
   logger.setLevel(Level.INFO);
}

...

我想在您的例子中，某个库使用了它自己的ConsoleAppender实例，该实例的名称不是'stdout'。我希望设置根日志级别可以解决这个问题。

root(loglevel, ['ROOT']);