7
我試圖創建的logback自定義佈局創建自定義佈局，如圖中的實施例chapter 6 in the manual：中的logback
package com.dces.util;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.CoreConstants;
import ch.qos.logback.core.LayoutBase;
public class LoggingConsoleLayout extends LayoutBase<ILoggingEvent>{
@Override
public String doLayout(ILoggingEvent event) {
StringBuffer sbuf = new StringBuffer(128);
sbuf.append("-- ");
sbuf.append("[");
sbuf.append(event.getLevel());
sbuf.append("]");
sbuf.append(event.getLoggerName());
sbuf.append(" - ");
sbuf.append(event.getFormattedMessage().replaceAll("\n", "\n\t"));
sbuf.append(CoreConstants.LINE_SEPARATOR);
return sbuf.toString();
}
然後我配置的XML文件，如下所示：
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<!-- <pattern> %-5level [%logger{0}] - %msg%n </pattern> -->
<layout class="com.dces.util.LoggingConsoleLayout" />
</encoder>
</appender>
<root level="trace">
<appender-ref ref="STDOUT" />
</root>
</configuration>
但是，當我嘗試創建一個記錄器時出現以下錯誤，如下所示：
public class Main {
private static Logger logger = (Logger)LoggerFactory.getLogger(Main.class);
public static void main(String [] args)
{
logger.info("Testing");
}
}
這裏是呃ror消息，我得到：
05:40:11,519 |-ERROR in [email protected] - Could not invoke method setLayout in class ch.qos.logback.classic.encoder.PatternLayoutEncoder with parameter of type com.dces.util.LoggingConsoleLayout java.lang.reflect.InvocationTargetException
at java.lang.reflect.InvocationTargetException
at at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at at java.lang.reflect.Method.invoke(Unknown Source)
at at ch.qos.logback.core.joran.util.PropertySetter.invokeMethodWithSingleParameterOnThisObject(PropertySetter.java:293)
at at ch.qos.logback.core.joran.util.PropertySetter.setComplexProperty(PropertySetter.java:356)
at at ch.qos.logback.core.joran.action.NestedComplexPropertyIA.end(NestedComplexPropertyIA.java:179)
at at ch.qos.logback.core.joran.spi.Interpreter.callEndAction(Interpreter.java:318)
at at ch.qos.logback.core.joran.spi.Interpreter.endElement(Interpreter.java:197)
at at ch.qos.logback.core.joran.spi.Interpreter.endElement(Interpreter.java:183)
at at ch.qos.logback.core.joran.spi.EventPlayer.play(EventPlayer.java:62)
at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:157)
at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:143)
at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:106)
at at ch.qos.logback.core.joran.GenericConfigurator.doConfigure(GenericConfigurator.java:56)
at at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:75)
at at ch.qos.logback.classic.util.ContextInitializer.autoConfig(ContextInitializer.java:148)
at at org.slf4j.impl.StaticLoggerBinder.init(StaticLoggerBinder.java:85)
at at org.slf4j.impl.StaticLoggerBinder.<clinit>(StaticLoggerBinder.java:55)
at at org.slf4j.LoggerFactory.bind(LoggerFactory.java:128)
at at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:107)
at at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:295)
at at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:269)
at at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:281)
at at com.dces.Main.<clinit>(Main.java:8)
Caused by: java.lang.UnsupportedOperationException: one cannot set the layout of ch.qos.logback.classic.encoder.PatternLayoutEncoder
at at ch.qos.logback.core.pattern.PatternLayoutEncoderBase.setLayout(PatternLayoutEncoderBase.java:64)
at ... 25 common frames omitted
05:40:11,538 |-ERROR in ch.qos.logback.classic.PatternLayout("null") - Empty or null pattern.