springboot 整合日志常见错误 - 类找不到

 

 错误

 

   

 

 原因：缺少 commons-logging.jar

 

 解决方案：

 

    如果用的是maven 则添加依赖即可

 

   

	<dependency>
			<groupId>commons-logging</groupId>
			<artifactId>commons-logging</artifactId>
			<version>1.1.1</version>
		</dependency>

 

 

 参考： https://www.cnblogs.com/yqskj/archive/2013/03/17/2964193.html

 

 附（springboot 整合log4j日志）：

 

  （1）添加依赖    

 

<dependencies>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter</artifactId>
			<exclusions>
				<exclusion>
					<groupId>org.springframework.boot</groupId>
					<artifactId>spring-boot-starter-logging</artifactId>
				</exclusion>
			</exclusions>
		</dependency>

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>

	<!--	<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-log4j</artifactId>
		</dependency>-->

		<dependency>
			<groupId>log4j</groupId>
			<artifactId>log4j</artifactId>
			<version>1.2.17</version>
		</dependency>
		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>log4j-over-slf4j</artifactId>
			<version>1.7.7</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>commons-logging</groupId>
			<artifactId>commons-logging</artifactId>
			<version>1.1.1</version>
		</dependency>

	</dependencies>

 

 （2）新建log4j.properties 文件

 

 

log4j.rootLogger=INFO,console

# for package com.demo.elk, log would be sent to socket appender.
log4j.logger.com.forezp=DEBUG, socket

# appender socket
log4j.appender.socket=org.apache.log4j.net.SocketAppender
log4j.appender.socket.Port=4560
log4j.appender.socket.RemoteHost=localhost
log4j.appender.socket.layout=org.apache.log4j.PatternLayout
log4j.appender.socket.layout.ConversionPattern=%d [%-5p] [%l] %m%n
log4j.appender.socket.ReconnectionDelay=10000

# appender console
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.target=System.out
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d [%-5p] [%l] %m%n

 

 （3）使用logger打印日志

   

  

private static final Logger logger = Logger.getLogger(AppTests.class);


 @Test
	public  void  test(){
          for (int i = 0 ; i<1000;i++){
          	logger.info(" 第 " + i + " 次说 love u ");
		  }
	}