我正在使用slf4j的logback来登录Spring Boot应用程序。我创建了一个自定义布局类,因为所有日志语句都包装为json。我已经将logback-spring.xml配置为如下所示,以获取自定义布局。有用!
问题是我无法应用模式。只有布局工作(或)模式。我想要的总是在日志上,转到布局类,然后在记录之前应用模式。
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${user.home}/logs/sample.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${user.home}/logs/sample_%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
<!-- how many days to keep the files -->
<maxHistory>30</maxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<layout class="com.test.test.payment.core.logging.SampleLogLayout" >
</layout>
</encoder>
*<!-- <encoder>
<charset>UTF-8</charset>
<Pattern>{"@timestamp": "%d{yyyy-MM-dd HH:mm:ss.SSS}", "priority": "%p", "application": "payment",
"class": "%C", "file": "%F:%L", "payload": %m }%n
</Pattern>
</encoder>-->*
</appender>
这是SampleLogLayout
班级:
public class SampleLogLayout extends LayoutBase<LoggingEvent> {
@Override
public String doLayout(LoggingEvent event) {
String renderedMessage = event.getMessage();
if (!isJson(renderedMessage)) {
Throwable throwable = null;
if (event.getLevel().equals(Level.ERROR) || event.getLevel().equals(Level.WARN)) {
final IThrowableProxy throwableProxy = event.getThrowableProxy();
if ((throwableProxy != null) && (throwableProxy instanceof ThrowableProxy)) {
ThrowableProxy proxy = (ThrowableProxy) throwableProxy;
throwable = proxy.getThrowable();
}
String message = LogErrorMessage.create(CommonCoreErrors.GENERIC_ERROR)
.message(renderedMessage).exception(throwable).build();
return message;
} else {
return LogMessage.create(renderedMessage).build();
}
}
return renderedMessage;
}
private boolean isJson(String msg) {
if (null == msg) {
return false;
} else {
return msg.startsWith("{") && msg.endsWith("}");
}
}
}
答案 0 :(得分:1)
我开始重现这一点,以便提供完整的解决方案,但缺少LogMessage
和LogErrorMessage
使得这有点棘手。
但是,在我看来,您只想登录JSON格式,而不仅仅是消息,还有timestamp
,priority
等元数据。
这可以通过使用JsonLayout
来实现。以下是布局配置的示例:
<layout class="ch.qos.logback.contrib.json.classic.JsonLayout">
<jsonFormatter class="ch.qos.logback.contrib.jackson.JacksonJsonFormatter">
<prettyPrint>false</prettyPrint>
</jsonFormatter>
<timestampFormat>yyyy-MM-dd' 'HH:mm:ss.SSS</timestampFormat>
<appendLineSeparator>true</appendLineSeparator>
<includeContextName>false</includeContextName>
</layout>
使用该配置进行以下日志调用...
logger.info("{\"a\": 1, \"b\": 2}");
...将发出:
{"timestamp":"2017-10-05 10:51:34.610","level":"INFO","thread":"main","logger":"com.stackoverflow.logback.LogbackTest","message":"{\"a\": 1, \"b\": 2}"}
您也可以包含MDC,例如......
MDC.put("application", "payment");
logger.info("{\"a\": 1, \"b\": 2}");
...将发出:
{"timestamp":"2017-10-05 10:52:56.088","level":"INFO","thread":"main","mdc":{"application":"payment"},"logger":"com.stackoverflow.logback.LogbackTest","message":"{\"a\": 1, \"b\": 2}"}
这非常接近您想要的输出,JsonLayout
是可扩展的,所以你可以......
toJsonMap()
以更改密钥的名称,例如将timestamp
替换为@timestamp
,将message
替换为payload
addCustomDataToJsonMap()
以将其他键:值对添加到日志事件因此,我认为您可以使用预先存在的JsonLayout
来实现所需的输出,而不是自己编写。
有关Logback JSON扩展here的详细信息。
Maven坐标是:
<dependency>
<groupId>ch.qos.logback.contrib</groupId>
<artifactId>logback-json-classic</artifactId>
<version>0.1.5</version>
</dependency>
<dependency>
<groupId>ch.qos.logback.contrib</groupId>
<artifactId>logback-json-core</artifactId>
<version>0.1.5</version>
</dependency>
<dependency>
<groupId>ch.qos.logback.contrib</groupId>
<artifactId>logback-jackson</artifactId>
<version>0.1.5</version>
</dependency>