如何修复无法在类 org.apache.logging.log4j.core.appender.RollingFileAppender 中为元素 RollingFile 调用工厂方法？

Question

我正在使用带有 log4j2 的 spring boot(2.2.0.RELEASE) 配置。在 tomcat 中部署 war 时会出现一些运行时异常。我已经设置了系统属性（日志名称），然后在 log4j 属性中提到了那个名称。

运行时错误：

ERROR Unable to invoke factory method in class org.apache.logging.log4j.core.appender.RollingFileAppender for element RollingFile: java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.RollingFileAppender java.lang.IllegalStateException: No factory method found for class org.apache.logging.log4j.core.appender.RollingFileAppender

Log4j.xml：

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO">
    <Properties>
        <Property name="LOG_PATTERN">%d{yyyy-MM-dd'@'HH:mm:ss}|[%t]|[AM]|%p|%X{Slf4jMDCFilter.UUID}|%c{1}()
            %M(%L) %m%n</Property>
        <Property name="APP_LOG_ROOT"
            value="logs/${sys:finlog}">
        </Property>
    </Properties>
    <Appenders>
        <RollingFile name="errorlog"
            fileName="${APP_LOG_ROOT}/error.log"
            filePattern="${APP_LOG_ROOT}/ErrorLog-%d{yyyy-MM-dd}-%i.log">
            <LevelRangeFilter minLevel="ERROR" maxLevel="ERROR"
                onMatch="ACCEPT" onMismatch="DENY" />
            <PatternLayout pattern="${LOG_PATTERN}" />
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
        </RollingFile>
        <RollingFile name="debugLog"
            fileName="${APP_LOG_ROOT}/debug.log"
            filePattern="${APP_LOG_ROOT}/DebugLog-%d{yyyy-MM-dd}-%i.log">
            <LevelRangeFilter minLevel="DEBUG" maxLevel="DEBUG"
                onMatch="ACCEPT" onMismatch="DENY" />
            <PatternLayout pattern="${LOG_PATTERN}" />
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
        </RollingFile>

        <RollingFile name="infoLog"
            fileName="${APP_LOG_ROOT}/info.log"
            filePattern="${APP_LOG_ROOT}/InfoLog-%d{yyyy-MM-dd}-%i.log">
            <LevelRangeFilter minLevel="INFO" maxLevel="INFO"
                onMatch="ACCEPT" onMismatch="DENY" />
            <PatternLayout pattern="${LOG_PATTERN}" />
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
        </RollingFile>

        <RollingFile name="warnLog"
            fileName="${APP_LOG_ROOT}/warn.log"
            filePattern="${APP_LOG_ROOT}/WarnLog-%d{yyyy-MM-dd}-%i.log">
            <LevelRangeFilter minLevel="WARN" maxLevel="WARN"
                onMatch="ACCEPT" onMismatch="DENY" />
            <PatternLayout pattern="${LOG_PATTERN}" />
            <Policies>
                <SizeBasedTriggeringPolicy size="19500KB" />
            </Policies>
            <DefaultRolloverStrategy max="10" />
        </RollingFile>
    </Appenders>
    <Loggers>
        <Logger name="com.demo.engine" additivity="false"
            level="debug">
            <AppenderRef ref="errorlog" />
            <AppenderRef ref="debugLog" />
            <AppenderRef ref="infoLog" />
            <AppenderRef ref="warnLog" />
        </Logger>
        <Logger name="org.springframework" additivity="false"
            level="error">
            <AppenderRef ref="springLog" />
            <AppenderRef ref="console" />
        </Logger>
        <Root level="DEBUG">        
        </Root>
    </Loggers>
</Configuration>

主要方法： 在下面的主要方法中，我使用类加载器获取上下文名称，然后使用系统属性放置名称。

public class Main extends SpringBootServletInitializer {
    static {
        String currentpath = "";
        String logAppContext = "";
        if (Thread.currentThread().getContextClassLoader().getResource("") != null) {
            currentpath = Thread.currentThread().getContextClassLoader().getResource("").toString().replace("%23", "#")
                    .replace("file:/", "");
            logAppContext = currentpath.isEmpty() ? logAppContext
                    : Paths.get(currentpath).getParent().getParent().getFileName().toString();
            System.setProperty("finlog", logAppContext);
            System.setProperty("context", logAppContext);
        }
    }

    public static void main(String[] args) {
        SpringApplication.run(Main.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Main.class);
    }
}

Answer 1

就我而言，这是记录到的文件路径的权限问题。更改权限为我修复了它