我在我的
Android应用程序中使用
logback-android将消息记录到文件,只要启用了日志记录(在app中配置).
它似乎工作正常,但当我有以下情况
它似乎工作正常,但当我有以下情况
>当大小达到50MB时旋转日志
>创建日志轮换时的备份文件.例如. testFile.1.log.zip
为此,我有以下logback.xml文件：
<configuration>
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>/sdcard/dappLog.log</file>
<append>true</append>
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>/sdcard/dappLog.%i.log.zip</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>2</maxIndex>
</rollingPolicy>
<triggeringPolicy class="com.dapp.utilities.SizeBasedTriggeringPolicy">
<maxFileSize>50MB</maxFileSize>
</triggeringPolicy>
</appender>
<root level="INFO">
<appender-ref ref="FILE" />
</root>
根据this答案,因为SizeBasedTriggerPolicy中有一个bug(src),所以我有以下实现：
`
package com.dapp.utilities;
import java.io.File;
import ch.qos.logback.core.util.FileSize;
public class SizeBasedTriggeringPolicy<E> extends ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy<E> {
@Override
public boolean isTriggeringEvent(final File activeFile,final E event) {
return (activeFile.length() >= FileSize.valueOf(getMaxFileSize()).getSize());
}
}
`
但是,当我运行它时,我收到以下错误：
I/System.out( 2346): 16:14:20,750 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@8:85 - no applicable action for [rollingPolicy],current pattern is [[configuration][appender][rollingPolicy]] I/System.out( 2346): 16:14:20,757 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@9:30 - no applicable action for [fileNamePattern],current pattern is [[configuration][appender][rollingPolicy][fileNamePattern]] I/System.out( 2346): 16:14:20,763 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@10:23 - no applicable action for [minIndex],current pattern is [[configuration][appender][rollingPolicy][minIndex]] I/System.out( 2346): 16:14:20,770 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@11:23 - no applicable action for [maxIndex],current pattern is [[configuration][appender][rollingPolicy][maxIndex]] I/System.out( 2346): 16:14:20,777 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@14:90 - no applicable action for [triggeringPolicy],current pattern is [[configuration][appender][triggeringPolicy]] I/System.out( 2346): 16:14:20,820 |-ERROR in ch.qos.logback.core.joran.spi.Interpreter@15:26 - no applicable action for [maxFileSize],current pattern is [[configuration][appender][triggeringPolicy][maxFileSize]]
PS：我不熟悉logback.
解决方法
我自己想出了这个问题.这是因为appender标签中的类属性错误.
以下代码有效：
以下代码有效：
<configuration>
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>/sdcard/dapp.log</file>
<append>false</append>
<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
<fileNamePattern>/sdcard/dapp.%i.log.zip</fileNamePattern>
<minIndex>1</minIndex>
<maxIndex>2</maxIndex>
</rollingPolicy>
<triggeringPolicy class="com.bigbasket.dapp.utilities.SizeBasedTriggeringPolicy">
<maxFileSize>50MB</maxFileSize>
</triggeringPolicy>
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="FILE"/>
</root>
