使用log4j.xml日誌重複打印解決方案

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<!-- in java cmd add -Dlog4j.configuration=logging.xml -->
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
	<appender name="log.console" class="org.apache.log4j.ConsoleAppender">
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern"
				value="%d{yyyy-MM-dd HH:mm:ss,SSS} 
		%t %-5p %c{2} - %m%n" />
		</layout>
	</appender>
	<appender name="log.file" class="org.apache.log4j.DailyRollingFileAppender">
		<param name="File"			value="日誌輸出路徑/upchnSmartSms.log" />
		<param name="Append" value="true" />
		<param name="Encoding" value="UTF-8" />
		<param name="DatePattern" value="'.'yyyy-MM-dd" />
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss,SSS} %t %-5p %c{2} - %m%n" />
		</layout>
	</appender>

	<category name="org.springframework" additivity="false">
		<priority value="warn" />
		<appender-ref ref="log.file" />
	</category>
	<category name="org.hibernate" additivity="false">
		<priority value="warn" />
		<appender-ref ref="log.file" />
	</category>
	<category name="com.ffcs" additivity="false">
		<priority value="info" />
		<appender-ref ref="log.file" />
	</category>
	<root>
		<priority value="info" />
		<appender-ref ref="log.file" />
	</root>
</log4j:configuration>

將配置文件中category的additivity屬性置爲false.   日誌就不會重複打印了。