我想屏蔽catalina.out中的System.out.println(CARD_NUMBER)值
我已经完成了以下编码,并且可以很好地用于日志记录,例如Log.info(CARD_NO)被屏蔽为XXXX,但是如果将同一CARD_NO写入System.out.println(CARD_NUMBER),则不会被屏蔽,而是将CARD_NO打印在catalina.out中。
例如在某类测试中
Log.info(CARD_NO)---> XXXX(屏蔽卡号)
System.out.println(CARD_NO)--->已打印CARD_NO(无屏蔽卡号)
在Log4j.xml
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out" />
<layout class="com.test.soap.common.CustomFilteringLayout">
<param name="ConversionPattern" value="%d{ISO8601} %-5p %c{1}.%M() %m%n" />
</layout>
</appender>
<appender name="logfile" class="org.apache.log4j.DailyRollingFileAppender">
<param name="File" value="../logs/test.log" />
<layout class="com.test.soap.common.CustomFilteringLayout">
<param name="ConversionPattern" value="%d{ISO8601}{CST} %p %t [%c] - %m%n" />
</layout>
</appender>
<root>
<priority value="INFO" />
<appender-ref ref="logfile" />
<appender-ref ref="console" />
</root>
</log4j:configuration>
CustomFilteringLayout类
public class CustomFilteringLayout extends EnhancedPatternLayout {
/**
* Any number that's of 10 digit would be masked (e.g: cardId). If number is > 11 digit then first 12 digit would masked.
* This is so because of keeping it in mind that cardNumber's length is 16 digit so first 12 digit would be masked.
*
* @param LoggingEvent event
* @return String formated String
*/
@Override
public String format(LoggingEvent event) {
if (event.getMessage() instanceof String) {
String message = event.getRenderedMessage();
Matcher matcher = RemoteConstants.PATTERN.matcher(message);
if (matcher.find()) {
String maskedMessage ="";
if(StringUtils.isNotBlank(matcher.group(1))&& matcher.group(1).length()==RemoteConstants.CARD_NUMBER_LENGTH){
StringBuffer masked = new StringBuffer();
masked.append(matcher.group(1).substring(0, 4)).append(" ");
masked.append(matcher.group(1).substring(4, 6)).append("XX ");
masked.append("XXXX ").append(matcher.group(1).substring(12, 16));
maskedMessage=masked.toString();
}else{
maskedMessage = matcher.replaceAll(RemoteConstants.MASK);
}
Throwable throwable = event.getThrowableInformation() != null ? event.getThrowableInformation()
.getThrowable() : null;
LoggingEvent maskedEvent = new LoggingEvent(event.fqnOfCategoryClass, Logger.getLogger(event
.getLoggerName()), event.timeStamp, event.getLevel(), maskedMessage, throwable);
return super.format(maskedEvent);
}
}
return super.format(event);
}
}
答案 0 :(得分:0)
您是否打算删除所有对System.out.println的调用或将其替换为对Logger的调用?
否则,如果您真的无法纠正原始代码,您是否考虑过通过使用System.out
来覆盖System.setOut
?您可以设置打印以检测到输入的字符串是卡号并屏蔽它-其余部分可以正常打印...?
类似:
PrintStream underlyingOut = System.out;
System.setOut(new PrintStream(underlyingOut) {
@Override
public void println(String x) {
if(x.matches("[0-9\\-]+")) {
super.println(x.replaceAll("[0-9]", "X"));
} else {
super.println(x);
}
}
});
System.out.println("Hello");
System.out.println("123-4567-89");
这会使System.out.println调用变慢,但输出:
Hello
XXX-XXXX-XX
HTH!