ELK增加appName

Signed-off-by: zhangxiaomu <zhangxiaomu@dongkesoft.com>

src/main/resources/logback-spring.xml

@@ -33,7 +33,7 @@
         <!--日志文档输出格式-->
         <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
             <layout class="org.apache.skywalking.apm.toolkit.log.logback.v1.x.TraceIdPatternLogbackLayout">
-                <pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] [%-5level] [%tid] [%t] [%logger{36}]: %msg%n</pattern>
+                <pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] [${APP_NAME}] [%-5level] [%tid] [%t] [%logger{36}]: %msg%n</pattern>
             </layout>
             <charset>UTF-8</charset> <!-- 此处设置字符集 -->
         </encoder>