0

在我的应用程序中，我使用 log4j2 输出日志。

<!-- log4j2 -->
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-api</artifactId>
    <version>2.0-beta9</version>
</dependency>
<dependency>
    <groupId>org.apache.logging.log4j</groupId>
    <artifactId>log4j-core</artifactId>
    <version>2.0-beta9</version>
</dependency>

并且应用程序托管在 Tomcat7 中。

首先我使用默认方式输出Catalina.out，但我发现我的应用程序日志将被重定向到Catalina.out。所以我按照Tomcat的文档。 http://tomcat.apache.org/tomcat-7.0-doc/logging.html

然后用log4j的方式改变它。但最后，它默认运行。

log4j.rootLogger = INFO, CATALINA

# Define all the appenders
log4j.appender.CATALINA = org.apache.log4j.DailyRollingFileAppender
log4j.appender.CATALINA.File = ${catalina.base}/logs/catalina
log4j.appender.CATALINA.Append = true
log4j.appender.CATALINA.Encoding = UTF-8
# Roll-over the log once per day
log4j.appender.CATALINA.DatePattern = '.'yyyy-MM-dd'.log'
log4j.appender.CATALINA.layout = org.apache.log4j.PatternLayout
log4j.appender.CATALINA.layout.ConversionPattern = %d [%t] %-5p %c- %m%n

log4j.appender.LOCALHOST = org.apache.log4j.DailyRollingFileAppender
log4j.appender.LOCALHOST.File = ${catalina.base}/logs/localhost
log4j.appender.LOCALHOST.Append = true
log4j.appender.LOCALHOST.Encoding = UTF-8
log4j.appender.LOCALHOST.DatePattern = '.'yyyy-MM-dd'.log'
log4j.appender.LOCALHOST.layout = org.apache.log4j.PatternLayout
log4j.appender.LOCALHOST.layout.ConversionPattern = %d [%t] %-5p %c- %m%n

log4j.appender.MANAGER = org.apache.log4j.DailyRollingFileAppender
log4j.appender.MANAGER.File = ${catalina.base}/logs/manager

任何人遇到这种问题，可以告诉我避免这种情况的解决方案吗？

PS：记录器模块设计为：

import java.io.BufferedWriter;
import java.util.Date;

public class Logger {

    private static org.apache.logging.log4j.Logger logger = org.apache.logging.log4j.LogManager.getLogger(Logger.class
            .getName());

    public static void error(String proj, String opera, String param, String msg) {
        logger.error(log("Error", proj, opera, param, msg));
    }

    public static void debug(String proj, String opera, String param, String msg) {
        logger.debug(log("Debug", proj, opera, param, msg));
    }

    public static void warn(String proj, String opera, String param, String msg) {
        logger.warn(log("Warn", proj, opera, param, msg));
    }

    public static void info(String proj, String opera, String param, String msg) {
        logger.info(log("Info", proj, opera, param, msg));
    }

    private static String log(String type, String proj, String opera, String param, String msg) {
        // Build log content with JSON
        StringBuilder sb = new StringBuilder();
        sb.append("{\"time\": \"");
        sb.append(DateUtil.formatMilliSecond(new Date()));
        sb.append("\", \"level\": ");
        sb.append("\"" + type + "\", \"module\": ");
        sb.append("\"" + proj + "\", \"operation\": ");
        sb.append("\"" + opera + "\"");

        if (!StringUtil.isEmpty(param)) {
            sb.append(", \"parameter\": \"" + param + "\"");
        }

        if (!StringUtil.isEmpty(msg)) {
            sb.append(", \"message\": \"" + msg + "\"");
        }
        sb.append("}");
        writeLog(sb.toString());
        return sb.toString();
    }


    public static void setLog(String module) {
        logger = org.apache.logging.log4j.LogManager.getLogger(module);
    }

}

和 log4j2 配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="OFF">
    <appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%msg%n"/>
        </Console>
        <RollingFile name="MinerLog" fileName="/local/logs/miners.log"
                     filePattern="/local/logs/$${date:yyyy-MM}/miners-%d{MM-dd-yyyy}-%i.log.gz">
            <PatternLayout pattern="%msg%n"/>
            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="20 MB"/>
            </Policies>
        </RollingFile>
        <RollingFile name="CaptainLog" fileName="/local/logs/captain.log"
                     filePattern="/local/logs/$${date:yyyy-MM}/captain-%d{MM-dd-yyyy}-%i.log.gz">
            <PatternLayout pattern="%msg%n"/>
            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="20 MB"/>
            </Policies>
        </RollingFile>
        <RollingFile name="DataProviderLog" fileName="/local/logs/das_dataprovider.log"
                     filePattern="/local/logs/$${date:yyyy-MM}/dataprovider-%d{MM-dd-yyyy}-%i.log.gz">
            <PatternLayout pattern="%msg%n"/>
            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="20 MB"/>
            </Policies>
        </RollingFile>
    </appenders>
    <loggers>
        <root level="debug">
            <appender-ref ref="Console"/>
        </root>
        <logger name="miner" level="debug">
            <appender-ref ref="MinerLog" level="info"/>
            <appender-ref ref="Console"/>
        </logger>
        <logger name="captain" level="debug">
            <appender-ref ref="CaptainLog" level="info"/>
            <appender-ref ref="Console"/>
        </logger>
        <logger name="dataprovider" level="debug">
            <appender-ref ref="DataProviderLog" level="info"/>
            <appender-ref ref="Console"/>
        </logger>
    </loggers>
</configuration>
4

4 回答 4

1

它被重定向到 catalina.out，因为您将控制台日志定义为附加程序，并且这些日志被重定向到 catalina.out。

但是，我们确实需要控制台日志用于本地开发，但不希望它们显示在其他环境中。您可以将 ThresholdFilter 与配置属性一起使用，以便仅在本地而不是在其他环境中使用以下示例代码来控制台日志：

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" monitorInterval="300">
    <Properties>
        <Property name="consoleLogLevel">error</Property>
    </Properties>
    <Appenders>
        <RollingFile name="FileOut" fileName="/dev/pref-api.log"
                     filePattern="/dev/pref-api-%d{yyyy-MM-dd}.gz">
            <PatternLayout pattern="%date{yyyy/MM/dd HH:mm:ss.SSS} %-5level [%t] [%logger{36}] %msg%n"/>
            <Policies>
                <TimeBasedTriggeringPolicy interval="1" modulate="true"/>
            </Policies>
        </RollingFile>

        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%date{yyyy/MM/dd HH:mm:ss.SSS} %-5level [%t] [%logger{36}] %msg%n"/>
            <Filters>
                <ThresholdFilter level="${sys:consoleLogLevel}"  onMatch="ACCEPT" onMismatch="DENY"/>
            </Filters>
        </Console>
    </Appenders>
    <Loggers>
        <Root level="warn" additivity="false">
            <AppenderRef ref="FileOut"/>
            <AppenderRef ref="Console"/>
        </Root>

        <Logger name="com.github.api" level="debug" additivity="false">
            <AppenderRef ref="FileOut"/>
            <AppenderRef ref="Console"/>
        </Logger>
    </Loggers>
</Configuration>

如果您在本地传递-DconsoleLogLevel=debug，您将看到来自com.github.api的所有日志都记录到控制台，但在其他环境中，如果您不传递任何值，则默认为错误，并且仅在 catalina 中显示错误堆栈.

于 2016-01-29T00:41:46.067 回答
0

下面将始终指向默认日志文件 Catalina.out。

log4j.appender.CATALINA.File = ${catalina.base}/logs/catalina

将此标签的值更改为本地文件

log4j.appender.CATALINA.File = C:\outputlog
于 2014-06-03T07:54:32.670 回答
0

最后，我更正了我的代码：

import java.util.Date;

import org.apache.logging.log4j.core.config.XMLConfigurationFactory;


public class Logger {

    static {
        System.setProperty(XMLConfigurationFactory.CONFIGURATION_FILE_PROPERTY, "/local/logs/log4j2.xml");
    }

    private static org.apache.logging.log4j.Logger logger = org.apache.logging.log4j.LogManager.getLogger(Logger.class
            .getName());

    ...

然后它可以在我的日志文件中正确生成。并且 Tomcat 也会在没有应用程序日志内容的情况下放置到正确的位置。/local/logs/log4j2.xml 现在看起来像：

<?xml version="1.0" encoding="UTF-8"?>
<configuration status="OFF">
    <appenders>
        <Console name="Console" target="SYSTEM_OUT">
            <PatternLayout pattern="%msg%n"/>
        </Console>
        <RollingFile name="AppLog" fileName="/local/das/logs/das_app.log"
                     filePattern="/local/das/logs/$${date:yyyy-MM}/das_app-%d{MM-dd-yyyy}-%i.log.gz">
            <PatternLayout pattern="%msg%n"/>
            <Policies>
                <TimeBasedTriggeringPolicy/>
                <SizeBasedTriggeringPolicy size="20 MB"/>
            </Policies>
        </RollingFile>        
    </appenders>
    <loggers>
        <root level="debug">
            <appender-ref ref="AppLog" level="info"/>
        </root>
    </loggers>
</configuration>

感谢vanOekel

于 2014-06-06T05:57:15.040 回答
0

如果您的应用程序的某些部分正在使用 log4j-1.2，您可以尝试将 log4j-1.2-api-2.0.jar 添加到类路径，以便对 1.2 api 的所有调用都重定向到 log4j2 实现。（请参阅 log4j2 FAQ 页面的“哪些 jars”部分。）您将不再需要 log4j-1.2 样式的属性文件配置。log4j2 只会使用 log4j2.xml 配置。

于 2014-06-04T09:30:57.000 回答