1）控制台日志提示1
log4j:WARN No appenders could be found for logger (**** class name).
原因：
未引入log4j的依赖
解决方式：
在pom.xml中引入依赖
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
2）控制台日志提示2
log4j:WARN Please initialize the log4j system properly.
原因：
未配置log4j.properties 文件 和 logging.properties
解决方式：
在resources目录下新增properties文件
logging.properties
# # JBoss, Home of Professional Open Source. # Copyright 2012 Red Hat, Inc., and individual contributors # as indicated by the @author tags. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # # Additional logger names to configure (root logger is always configured) loggers=org.xnio.listener,org.xnio.ssl,org.apache,io.undertow.util.TestHttpClient # Root logger configuration logger.level=${test.level:INFO} logger.handlers=CONSOLE # Console handler configuration handler.CONSOLE=org.jboss.logmanager.handlers.ConsoleHandler handler.CONSOLE.properties=autoFlush,target handler.CONSOLE.target=SYSTEM_ERR handler.CONSOLE.level=ALL handler.CONSOLE.autoFlush=true handler.CONSOLE.formatter=PATTERN # The log format pattern formatter.PATTERN=org.jboss.logmanager.formatters.PatternFormatter formatter.PATTERN.properties=pattern formatter.PATTERN.pattern=%d{HH:mm:ss,SSS} %-5p (%t) [%c] <%F:%L> %m%n logger.org.xnio.listener.level=DEBUG logger.org.xnio.ssl.level=DEBUG logger.org.apache.level=info logger.org.apache.useParentHandlers=false logger.io.undertow.util.TestHttpClient.level=info
log4j.properties
# log4j.rootLogger=WARN, stdout, file log4j.rootLogger=info,stdout,file log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p][%C.%M()]: %m%n # Output to the File log4j.appender.file=org.apache.log4j.DailyRollingFileAppender log4j.appender.file.DatePattern='_'yyyy-MM-dd'.log' log4j.appender.file.File=./log/medium_system_api.log log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%-d{yyyy-MM-dd HH:mm:ss} [%p][%C.%M()]: %m%n