java - 如何根据消息级别将消息记录在单独的文件中

Question

我想要做的是创建自定义日志级别(例如 SentLevel、ReceivedLevel 和 ReadLevel)并将使用它们记录的消息存储在单独的文件中。

让我用一个例子更清楚地解释一下自己。每个 LOC 应放置在单独的 LOG 文件中:

    logger.log(ResultadosEnviadosLevel.RESULTADOS_ENVIADOS, "sent data :)");
    logger.log(ResultadosRecibidosLevel.RESULTADOS_RECIBIDOS, "received data :-)");
    logger.log(CustomLevel.ACCION, "action!!");

今天发送的内容: 已发送数据:)

今天收到的内容: 收到数据:-)

今日行动内容: 行动!!

我进行了一些调查，我正在使用 Log4j 1.2.17。我正在使用 DailyRollingFileAppender。问题是我记录的每条消息都存储在这三个文件中。

我通过以下方式创建了关卡:

import org.apache.log4j.Level;

public class CustomLog4jLevel extends Level {

    private static final long serialVersionUID = 6031879473353817158L;

    /**
     * Value of AccionLog4jLevel level. This value is lesser than DEBUG_INT and higher
     * than TRACE_INT}
     */
    public static final int ACCION_INT = DEBUG_INT - 10;

    /**
     * Level representing my log level
     */
    public static final Level ACCION = new CustomLog4jLevel(ACCION_INT, "ACCION", 10);

    /**
     * Constructor
     */
    protected CustomLog4jLevel(int arg0, String arg1, int arg2) {
        super(arg0, arg1, arg2);

    }

    /**
     * Checks whether logArgument is "Accion" level. If yes then returns
     * Accion}, else calls AccionLog4jLevel#toLevel(String, Level) passing
     * it Level#DEBUG as the defaultLevel.
     */
    public static Level toLevel(String logArgument) {
        if (logArgument != null && logArgument.toUpperCase().equals("ACCION")) {
            return ACCION;
        }
        return (Level) toLevel(logArgument);
    }

    /**
     * Checks whether val is AccionLog4jLevel#Accion_INT. If yes then
     * returns AccionLog4jLevel#Accion, else calls
     * AccionLog4jLevel#toLevel(int, Level) passing it Level#DEBUG as the
     * defaultLevel
     * 
     */
    public static Level toLevel(int val) {
        if (val == ACCION_INT) {
            return ACCION;
        }
        return (Level) toLevel(val, Level.DEBUG);
    }

    /**
     * Checks whether val is AccionLog4jLevel#Accion_INT. If yes
     * then returns AccionLog4jLevel#Accion, else calls Level#toLevel(int, org.apache.log4j.Level)
     * 
     */
    public static Level toLevel(int val, Level defaultLevel) {
        if (val == ACCION_INT) {
            return ACCION;
        }
        return Level.toLevel(val, defaultLevel);
    }

    /**
     * Checks whether logArgument is "Accion" level. If yes then returns
     * AccionLog4jLevel#Accion, else calls
     * Level#toLevel(java.lang.String, org.apache.log4j.Level)
     * 
     */
    public static Level toLevel(String logArgument, Level defaultLevel) {
        if (logArgument != null && logArgument.toUpperCase().equals("ACCION")) {
            return ACCION;
        }
        return Level.toLevel(logArgument, defaultLevel);
    }
}

我的 log4j.xml 如下:

    <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration PUBLIC "-//APACHE//DTD LOG4J 1.2//EN" 
 "http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/xml/doc-files/log4j.dtd">
<log4j:configuration 
    xmlns:log4j="http://jakarta.apache.org/log4j/"
    debug="true">

    <appender name="file-daily" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="append" value="false" />
        <param name="additivity" value="false" />

        <param name="Threshold" value="ACCION"/>

        <param name="levelMin" value="ACCION" />
        <param name="levelMax" value="ACCION" />

        <!-- Colocamos los logs en la carpeta padronlogs dentro de la del Tomcat logs -->
        <param name="file" value="${catalina.home}/logs/padronLogs/hoy.log" />
        <param name="DatePattern" value=".yyyy-MM-dd" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" 
                value="%d{dd-MM-yyyy HH:mm:ss} %-5p - %m%n" />
        </layout>
    </appender>    

    <appender name="file-results-sent" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="append" value="false" />
        <param name="additivity" value="false" />

        <param name="Threshold" value="RESULTADOS_ENVIADOS"/>

        <param name="levelMin" value="RESULTADOS_ENVIADOS" />
        <param name="levelMax" value="RESULTADOS_ENVIADOS" />

        <!-- Colocamos los logs en la carpeta padronlogs dentro de la del Tomcat logs -->
        <param name="file" value="${catalina.home}/logs/padronLogs/enviados/hoy-enviados.log" />
        <param name="DatePattern" value=".yyyy-MM-dd" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" 
                value="%d{dd-MM-yyyy HH:mm:ss} %-5p - %m%n" />
        </layout>
    </appender>    

    <appender name="file-results-received" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="append" value="false" />
        <param name="additivity" value="false" />

        <param name="Threshold" value="RESULTADOS_RECIBIDOS"/>

        <param name="levelMin" value="RESULTADOS_RECIBIDOS" />
        <param name="levelMax" value="RESULTADOS_RECIBIDOS" />

        <!-- Colocamos los logs en la carpeta padronlogs dentro de la del Tomcat logs -->
        <param name="file" value="${catalina.home}/logs/padronLogs/recibidos/hoy-recibidos.log" />
        <param name="DatePattern" value=".yyyy-MM-dd" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" 
                value="%d{dd-MM-yyyy HH:mm:ss} %-5p - %m%n" />
        </layout>
    </appender>    

    <!-- Limitar la categoria y especificar la prioridad -->
    <category name="com.ingartek.accion">
        <priority value="ACCION" class="com.ingartek.log4j.CustomLog4jLevel" />
        <appender-ref ref="file-daily" />
    </category>

    <category name="com.ingartek.enviados">
        <priority value="RESULTADOS_ENVIADOS" class="com.ingartek.log4j.ResultadosEnviadosLevel" />
        <appender-ref ref="file-results-sent"/>
    </category>
    <category name="com.ingartek.recibidos">
        <priority value="RESULTADOS_RECIBIDOS" class="com.ingartek.log4j.ResultadosRecibidosLevel" />
        <appender-ref ref="file-results-received"/>
    </category>
    <root>
        <level value="info" />
<!--        Solamente mostraremos info relacionada con solicitudes y consultas -->
        <appender-ref ref="file-daily" />
        <appender-ref ref="file-results-sent" />
        <appender-ref ref="file-results-received" />
    </root>

</log4j:configuration>

有什么提示吗？谢谢:)

**编辑:** 只要目标可行，我就不在乎从 Log4j 1.x 迁移到 2.x(事实上，我已经开始在另一个项目中使用 2.x)。

Answer 1

我通过这个小设置让事情正常工作:

在 JAVA 文件中:

1.通过定义Level；

Level TEST = Level.forName("TEST", 250);

2.创建记录器；

Logger test_logger = LogManager.getLogger();

3.调用log方法将日志追加到文件中。

test_logger.log(TEST, "test log message");

我的log4j2.xml文件是这样的:

<Configuration status="WARN">

<CustomLevels>
    <CustomLevel name="TEST" intLevel="150" />
</CustomLevels>

<Appenders>
    <File name="TestFile" fileName="/var/tmp/logs/test.log">
        <PatternLayout pattern="%d %-7level %logger{36} - %msg%n" />
    </File>
</Appenders>

<Loggers>
    <Root level="WARN">
        <AppenderRef ref="TestFile" level="test" />
    </Root>
</Loggers>

</Configuration>

log4j2.xml 文件放置在 src 文件夹中。 还有一件事;我正在使用 log4j-api-2.3.jar、log4j-core-2.3.jar

尝试使用这个配置，也许会对你有帮助。 :)