自定义log4j2的PatternLayout参数
1.添加类
package com.yuanian.micro.config;
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.pattern.ConverterKeys;
import org.apache.logging.log4j.core.pattern.LogEventPatternConverter;
import org.apache.logging.log4j.core.pattern.PatternConverter;
/**
* @author liujy
* @date 2019/12/18 16:46
* 增加serviceName到日志的pattern
**/
@Plugin(name = "ServiceNamePatternConverter", category = PatternConverter.CATEGORY)
@ConverterKeys({"s", "serviceName"})
public class ServiceNamePatternConverter extends LogEventPatternConverter {
private String SERVICENAME = "ms-job-console";
private static final ServiceNamePatternConverter INSTANCE =
new ServiceNamePatternConverter();
public static ServiceNamePatternConverter newInstance(
final String[] options) {
return INSTANCE;
}
private ServiceNamePatternConverter() {
super("serviceName", "serviceName");
}
@Override
public void format(LogEvent logEvent, StringBuilder toAppendTo) {
toAppendTo.append(SERVICENAME);
}
}
- 修改log4j2.yml文件，添加变量Configuration.packages为刚才创建类所在的包
Configuration:
status: warn
packages: com.yuanian.micro.config
3.在log4j2.yml中使用自定义的参数
Configuration:
status: warn
packages: com.yuanian.micro.config
Appenders:
Console: #输出到控制台
name: CONSOLE
target: SYSTEM_OUT
ThresholdFilter:
level: info
onMatch: ACCEPT
onMismatch: DENY
PatternLayout:
pattern: "%d %p %c [serviceName = %s] [Class = %c] [File = %F] [Line = %L] [Method = %M] [%t] %m%n"
4.效果如下:
2019-12-18 17:24:00,183 WARN com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder [serviceName = ms-job-console] [Class = com.alibaba.cloud.nacos.client.NacosPropertySourceBuilder] [File = NacosPropertySourceBuilder.java] [Line = 86] [Method = loadNacosData] [main] Ignore the empty nacos configuration and get it based on dataId[ms-job-console] & group[DEFAULT_GROUP]
5.不可以把参数定义重复，log4j2自定义的参数可以参考下面的地址 https://blog.csdn.net/guoquanyou/article/details/5689652
