Log4J 不写入文件，仅写入控制台

Question

我尝试将自定义日志级别“BSHARING_LOG”的消息写入单独的日志文件“bsharing.log”。启动应用程序后，出现空文件“bsharing.log”，但其中没有消息。 “测试日志消息2”和“测试日志消息”都在控制台上。但不在文件“bsharing.log”中。标准级别的消息写入“application.log”。怎么了？

我的 pom.xml 的一部分：

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.0.6</version>
        <relativePath />
    </parent>

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <exclusions>
            <exclusion>
                    <groupId>org.slf4j</groupId>
                    <artifactId>slf4j-log4j12</artifactId>
            </exclusion>
            <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
            </exclusions>
    </dependency>
    <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>

log4j2.xml：

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN" monitorInterval="30">
    <Properties>
        <Property name="LOG_PATTERN">%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} %p %m%n</Property>
        <Property name="APP_LOG_ROOT">logs</Property>
    </Properties>

    <CustomLevels>
        <CustomLevel name="BSHARING_LOG" intLevel="350" />
    </CustomLevels>

    <Appenders>
        <Console name="Console" target="SYSTEM_OUT" follow="true">
            <PatternLayout pattern="${LOG_PATTERN}" />
        </Console>
        <RollingFile name="appLog"
                fileName="${APP_LOG_ROOT}/application.log"
                filePattern="${APP_LOG_ROOT}/application-%d{yyyy-MM-dd}-%i.log">
            <PatternLayout pattern="${LOG_PATTERN}" />
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
            <DefaultRolloverStrategy max="1" />
        </RollingFile>
        <RollingFile name="bsharingLogAppender"
                fileName="${APP_LOG_ROOT}/bsharing.log"
                filePattern="${APP_LOG_ROOT}/bsharing-%d{yyyy-MM-dd}-%i.log">
            <PatternLayout pattern="${LOG_PATTERN}" />
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
            <DefaultRolloverStrategy max="1" />
        </RollingFile>
    </Appenders>

    <Loggers>
        <Logger name="ru.bozza.Sharing" additivity="false">
            <AppenderRef ref="appLog" />
            <AppenderRef ref="Console" />
        </Logger>
        
        <Logger name="bsharinglogger" level="BSHARING_LOG" additivity="false">
            <AppenderRef ref="Console" />
            <AppenderRef ref="bsharingLogAppender" />
        </Logger>
        
        <Root level="info">
            <AppenderRef ref="Console" />
            <AppenderRef ref="appLog" />
        </Root>
    </Loggers>
</Configuration>

班级：

public class CustomSecurityFilter extends GenericFilterBean {
    private final Logger log = LogManager.getLogger(this.getClass());
    
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        log.log(Level.forName("BSHARING_LOG", 350), "test log message2");
        log.log(Level.getLevel("BSHARING_LOG"), "test log message");
        filterChain.doFilter(servletRequest, servletResponse);
    }
}

如果

<Root level="info">
   <AppenderRef ref="Console" />
   <AppenderRef ref="appLog" />
   <AppenderRef ref="bsharingLogAppender" />
</Root>

然后将写入记录到两个文件。 我不明白，为什么我的自定义日志消息仅出现在控制台中，而不出现在文件“bsharing.log”中。

Answer 1

（代表问题作者发布答案，将其移至答案空间）.

我已经解决了。

文件 log4j2.xml：

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN" monitorInterval="30">
    <Properties>
        <Property name="LOG_PATTERN">%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} %p %m%n</Property>
        <Property name="APP_LOG_ROOT">logs</Property>
    </Properties>

    <CustomLevels>
        <CustomLevel name="BSHARING_LOG" intLevel="350" />
    </CustomLevels>

    <Appenders>
        <Console name="Console" target="SYSTEM_OUT" follow="true">
            <PatternLayout pattern="${LOG_PATTERN}" />
        </Console>
        <RollingFile name="appLog"
                fileName="${APP_LOG_ROOT}/application.log"
                filePattern="${APP_LOG_ROOT}/application-%d{yyyy-MM-dd}-%i.log">
            <PatternLayout pattern="${LOG_PATTERN}" />
            <LevelRangeFilter minLevel="BSHARING_LOG" maxLevel="BSHARING_LOG" onMatch="DENY" onMismatch="ACCEPT"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
            <DefaultRolloverStrategy max="1" />
        </RollingFile>
        <RollingFile name="bsharingLogAppender"
                fileName="${APP_LOG_ROOT}/bsharing.log"
                filePattern="${APP_LOG_ROOT}/bsharing-%d{yyyy-MM-dd}-%i.log">
            <PatternLayout pattern="${LOG_PATTERN}" />
            <LevelRangeFilter minLevel="BSHARING_LOG" maxLevel="BSHARING_LOG" onMatch="ACCEPT" onMismatch="DENY"/>
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
            <DefaultRolloverStrategy max="1" />
        </RollingFile>
    </Appenders>

    <Loggers>
        <Root level="info">
            <AppenderRef ref="Console" />
            <AppenderRef ref="appLog" />
            <AppenderRef ref="bsharingLogAppender" />
        </Root>
    </Loggers>
</Configuration>

请参阅 LevelRangeFilter 参数。