[英]Disable PDFBox logging with Springboot org.apache.commons.logging
我无法找到一种方法来阻止我在 psring 启动应用程序中使用的 PDFBox 发出警告。 例如:
2019-10-01 16:53:51.021 WARN 24564 --- [nio-8443-exec-2] o.a.pdfbox.pdmodel.font.PDType0Font : No Unicode mapping for CID+4 (4) in font Calibri-Bold
2019-10-01 16:53:51.022 WARN 24564 --- [nio-8443-exec-2] o.a.pdfbox.pdmodel.font.PDCIDFontType2 : Failed to find a character mapping for 4 in Calibri-Bold
2019-10-01 16:53:51.022 WARN 24564 --- [nio-8443-exec-2] o.a.pdfbox.pdmodel.font.PDCIDFontType2 : Failed to find a character mapping for 4 in Calibri-Bold
我试过:在应用程序文件中:
static {
System.setProperty("org.apache.commons.logging.Log", "org.apache.commons.logging.impl.NoOpLog");
java.util.logging.Logger.getLogger("org.apache.pdfbox").setLevel(java.util.logging.Level.OFF);
String[] loggers = {
"org.apache.pdfbox.util.PDFStreamEngine",
"org.apache.pdfbox.pdmodel.font.PDSimpleFont",
"org.apache.pdfbox.pdmodel.font.PDFont",
"org.apache.pdfbox.pdmodel.font.FontManager",
"org.apache.pdfbox.pdfparser.PDFObjectStreamParser",
"o.a.pdfbox.pdmodel.font.PDCIDFontType2",
"org.apache.pdfbox.pdmodel.font.PDCIDFontType2",
"o.a.pdfbox.pdmodel.font.PDType0Font",
"org.apache.pdfbox.pdmodel.font.PDType0Font",
"org.apache.pdfbox.pdmodel.font.PDType1Font"
};
for (String logger: loggers) {
org.apache.log4j.Logger logpdfengine = org.apache.log4j.Logger
.getLogger(logger);
logpdfengine.setLevel(org.apache.log4j.Level.OFF);
}
}
作为运行 jar 时的参数:
-Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.NoOpLog
-Dorg.slf4j.simpleLogger.defaultLogLevel=off
在 PDFBox 代码中,使用以下命令设置日志:
(import org.apache.commons.logging.LogFactory;)
private static final Log LOG = LogFactory.getLog(PDCIDFontType0.class);
LOG.warn("Found PFB but expected embedded CFF font " + fd.getFontName());
我花了很长时间尝试了很多事情,并在 SO 中搜索了类似问题的答案,但没有得到任何结果。
这是我最终使用的配置文件。 我没有包含任何与日志记录相关的依赖项或向 pdfbox 依赖项添加任何排除项,只是将此文件添加到包含 application.properties 文件的文件夹中。
文件名是 logback-spring.xml
洪水记录器是从如何更改 java 中的 3rd 方库的日志级别中复制的
<property name="LOGS" value="./logs" />
<appender name="Console"
class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
</Pattern>
</layout>
</appender>
<appender name="RollingFile"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOGS}/spring-boot-logger.log</file>
<encoder
class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%d %p %C{1.} [%t] %m%n</Pattern>
</encoder>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily and when the file reaches 10 MegaBytes -->
<fileNamePattern>${LOGS}/archived/spring-boot-logger-%d{yyyy-MM-dd}.%i.log
</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<!-- LOG everything at INFO level -->
<root level="info">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</root>
<!-- LOG "com.baeldung*" at TRACE level -->
<logger name="org.apache" level="ERROR" additivity="false">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</logger>
<logger name="flooding logger" level="ERROR" additivity="false">
<appender-ref ref="Console"/>
这是我在“旧”log4j log4j.properties
文件中使用的内容(您应该迁移到 log4j2):
log4j.logger.org.springframework=WARN
log4j.logger.org.apache.pdfbox.pdmodel.font.PDCIDFontType2=FATAL
在“新” log4j2.xml
我有这个(附加程序被命名为STDOUT
和A1
):
<?xml version="1.0" encoding="UTF-8"?>
<!-- https://logging.apache.org/log4j/2.x/manual/configuration.html
https://logging.apache.org/log4j/2.x/manual/appenders.html
-->
<Configuration>
<Appenders>
....
....
</Appenders>
<Loggers>
<Logger name="org.springframework" level="warn" additivity="false">
<AppenderRef ref="STDOUT"/>
<AppenderRef ref="A1"/>
</Logger>
<Logger name="org.apache.pdfbox.pdmodel.font.PDCIDFontType2" level="fatal" additivity="false">
<AppenderRef ref="STDOUT"/>
<AppenderRef ref="A1"/>
</Logger>
<Root level="info">
<AppenderRef ref="STDOUT"/>
<AppenderRef ref="A1"/>
</Root>
</Loggers>
</Configuration>
我认为这也应该适用于log4j2。 我使用这种简单的方法来禁用SpringBoot应用程序中特定库的日志。 您只需将其添加到 log4j2.xml 文件中即可。
<Loggers>
<Root>
****** here is some AppenderRef *******
</Root>
<Logger name="o.a.pdfbox" level="off"/>
or
<Logger name="org.apache.pdfbox" level="off"/>
</Loggers>
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