Slf4j日志集成

朱雀 2023-10-13 18:30 11阅读 0赞

## Slf4j日志集成 ##

下面就是集成步骤，按着做就可以了

### 1、logback-spring.xml ###

哪个服务需要记录日志就将在哪个服务的resource下新建logback-spring.xml文件，里面的内容如下：

<configuration scan="true" scanPeriod="60 seconds" debug="false">
    	
    	<jmxConfigurator />
    	
    	<property name="log_dir" value="D:/LOGS/HRM" />
    	
    	<property name="maxHistory" value="30" />
    	
    	<property name="maxFileSize" value="20MB" />
    	
    	<property name="FORMAT" value="%-5level %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c.%M：%L：%msg%n"/>
    
    
    	
    	<appender name="console" class="ch.qos.logback.core.ConsoleAppender">
    		<encoder>
    			<pattern>
    				
    				${FORMAT}
    			</pattern>
    		</encoder>
    	</appender>
    
    	
    	
    	<appender name="ERROR" class="ch.qos.logback.core.rolling.RollingFileAppender">
    		
    		
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			
    			<level>ERROR</level>
    			
    			<onMatch>ACCEPT</onMatch>
    			
    			<onMismatch>DENY</onMismatch>
    		</filter>
    		
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			
    			<fileNamePattern>
    				${log_dir}/error/%d{yyyy-MM-dd}/error-%i.log
    			</fileNamePattern>
    			
    			<maxHistory>${maxHistory}</maxHistory>
    			
    			<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
    				<maxFileSize>${maxFileSize}</maxFileSize>
    			</timeBasedFileNamingAndTriggeringPolicy>
    		</rollingPolicy>
    		<encoder>
    			<pattern>
    				
    				${FORMAT}
    			</pattern>
    		</encoder>
    	</appender>
    
    	
    	<appender name="WARN" class="ch.qos.logback.core.rolling.RollingFileAppender">
    		
    		
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			
    			<level>WARN</level>
    			
    			<onMatch>ACCEPT</onMatch>
    			
    			<onMismatch>DENY</onMismatch>
    		</filter>
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			<fileNamePattern>${log_dir}/warn/%d{yyyy-MM-dd}/warn-%i.log</fileNamePattern>
    			<maxHistory>${maxHistory}</maxHistory>
    			
    			<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
    				<maxFileSize>${maxFileSize}</maxFileSize>
    			</timeBasedFileNamingAndTriggeringPolicy>
    		</rollingPolicy>
    		<encoder>
    			<pattern>${FORMAT}</pattern>
    		</encoder>
    	</appender>
    
    	
    	<appender name="INFO" class="ch.qos.logback.core.rolling.RollingFileAppender">
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			<level>INFO</level>
    			<onMatch>ACCEPT</onMatch>
    			<onMismatch>DENY</onMismatch>
    		</filter>
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			<fileNamePattern>${log_dir}/info/%d{yyyy-MM-dd}/info-%i.log</fileNamePattern>
    			<maxHistory>${maxHistory}</maxHistory>
    			
    			<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
    				<maxFileSize>${maxFileSize}</maxFileSize>
    			</timeBasedFileNamingAndTriggeringPolicy>
    		</rollingPolicy>
    		<encoder>
    			<pattern>${FORMAT}</pattern>
    		</encoder>
    	</appender>
    
    	
    	<appender name="DEBUG" class="ch.qos.logback.core.rolling.RollingFileAppender">
    		<filter class="ch.qos.logback.classic.filter.LevelFilter">
    			<level>DEBUG</level>
    			<onMatch>ACCEPT</onMatch>
    			<onMismatch>DENY</onMismatch>
    		</filter>
    		<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
    			<fileNamePattern>${log_dir}/debug/%d{yyyy-MM-dd}/debug-%i.log</fileNamePattern>
    			<maxHistory>${maxHistory}</maxHistory>
    			
    			<timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
    				<maxFileSize>${maxFileSize}</maxFileSize>
    			</timeBasedFileNamingAndTriggeringPolicy>
    		</rollingPolicy>
    		<encoder>
    			<pattern>${FORMAT}</pattern>
    		</encoder>
    	</appender>
    
    	
    	<root>
    		
    		
    		<level value="info" />
    		
    		<appender-ref ref="console" />
    		
    		<appender-ref ref="ERROR" />
    		<appender-ref ref="INFO" />
    		<appender-ref ref="WARN" />
    		<appender-ref ref="DEBUG" />
    	</root>
    </configuration>

上面内容基本可以当作模板使用了，工作后可以直接使用，里面的注释写的非常清楚了，可根据具体需求修改一些参数就可以使用了

### 2、导入依赖 ###

哪个微服务需要记录日志就将在哪个微服务的pom.xml导入下面的包：

<dependency>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </dependency>

### 3、使用 ###

@Slf4j
    public class TenantController {
        
        
        @GetMapping(value = "/list")
        public JSONResult list(){
        
            log.debug("我是 debug 信息");
            log.info("我是 info 信息");
            log.warn("我是 warn 信息");
            log.error("我是 error 信息");
            return JSONResult.success();
        }
    }

### 4、测试 ###

直接浏览器访问一下list接口，控制台就会打印出日志了：

![\[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-GpX11ixY-1689515913874)(images/image-20211111195522771.png)\]][img-GpX11ixY-1689515913874_images_image-20211111195522771.png]

对应磁盘中会生成对应的日志文件：

![\[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-CDHOxeN6-1689515913875)(images/image-20211111195610593.png)\]][img-CDHOxeN6-1689515913875_images_image-20211111195610593.png]

[img-GpX11ixY-1689515913874_images_image-20211111195522771.png]: https://img-blog.csdnimg.cn/207bb21788d0456981468df9526edf87.png
[img-CDHOxeN6-1689515913875_images_image-20211111195610593.png]: https://img-blog.csdnimg.cn/77b769466e0a490eb96ae229896a42c0.png