我在我的 logback.xml 中有这个配置到一个 Spring Web 应用程序(没有 Spring Boot)。
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
<encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
<layout class="ch.qos.logback.contrib.json.classic.JsonLayout">
<timestampFormat>yyyy-MM-dd'T'HH:mm:ss.SSSX</timestampFormat>
<timestampFormatTimezoneId>Etc/UTC</timestampFormatTimezoneId>
<jsonFormatter class="ch.qos.logback.contrib.jackson.JacksonJsonFormatter">
<prettyPrint>true</prettyPrint>
</jsonFormatter>
</layout>
<customFields>{"appname":"foobar"}</customFields>
</encoder>
</appender>
<!-- LOG everything at INFO level -->
<root level="INFO">
<appender-ref ref="Console" />
</root>
</configuration>
JSON 布局工作正常,但自定义字段为 "appname": "foobar" 未打印:
{
"timestamp" : "2020-06-10T14:55:25.534Z",
"level" : "INFO",
"thread" : "Catalina-utility-1",
"logger" : "org.springframework.web.servlet.DispatcherServlet",
"message" : "FrameworkServlet 'dispatcher': initialization completed in 72 ms",
"context" : "default"
}
我究竟做错了什么?
解决方案
我使用了错误的库来满足我的需要:
- logback-杰克逊
- logback-json-经典
因为我需要通过 Logstash 处理日志,所以我更正了我的配置,如下所示:
pom.xml
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
<dependency>
<groupId>net.logstash.logback</groupId>
<artifactId>logstash-logback-encoder</artifactId>
<version>6.4</version>
</dependency>
logback.xml
<appender name="Console" class="ch.qos.logback.core.ConsoleAppender">
<encoder class="net.logstash.logback.encoder.LogstashEncoder">
<customFields>{"customer":"X", "appname":"Y", "environment":"dev"}</customFields>
</encoder>
</appender>
现在它工作正常。