springboot中logback打印日志（转）

Posted 2020-10-23 星朝

springboot对logback的支持是非常好的，不需要任何配置，只需要在resource下加logback.xml就可以实现功能
直接贴代码：

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print?

1. <?xml version="1.0" encoding="UTF-8"?>  
2.   
3. <configuration scan="true" scanPeriod="60 seconds">  
4.     <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">  
5.         <encoder>  
6.             <pattern>%d{yyyy-M-d HH:mm:ss} %t %p %m%n</pattern>  
7.         </encoder>  
8.     </appender>  
9.     <appender name="springboot"  
10.         class="ch.qos.logback.core.rolling.RollingFileAppender">  
11.         <!-- <Encoding>UTF-8</Encoding> -->  
12.         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
13.             <FileNamePattern>logs/logback/springboot_%d{yyyy-M-d}.log  
14.             </FileNamePattern>  
15.             <MaxHistory>10</MaxHistory>  
16.         </rollingPolicy>  
17.         <encoder>  
18.             <pattern>%d{yyyy-M-d HH:mm:ss} %t %p %m%n</pattern>  
19.         </encoder>  
20.     </appender>  
21.     <appender name="smile"  
22.         class="ch.qos.logback.core.rolling.RollingFileAppender">  
23.         <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">  
24.             <FileNamePattern>logs/logback/smile_%d{yyyy-M-d}.log  
25.             </FileNamePattern>  
26.             <MaxHistory>10</MaxHistory>  
27.         </rollingPolicy>  
28.         <encoder>  
29.             <pattern>%d{yyyy-M-d HH:mm:ss} %t %p %m%n</pattern>  
30.         </encoder>  
31.     </appender>  
32.   
33.     <logger name="org.springframework.boot" level="debug"  
34.         additivity="false">  
35.         <appender-ref ref="springboot" />  
36.     </logger>  
37.     <!-- name包必须能够扫描到所以类，包括启动类 -->  
38.     <logger <span style="color:#ff0000;">name="com.smile"</span> level="debug" additivity="false">  
39.         <appender-ref ref="smile" />  
40.     </logger>  
41.     <root level="info">  
42.         <appender-ref ref="stdout" />  
43.     </root>  
44. </configuration>    

<?xml version="1.0" encoding="UTF-8"?><configuration scan="true" scanPeriod="60 seconds">
    <appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{yyyy-M-d HH:mm:ss} %t %p %m%n</pattern>
        </encoder>
    </appender>
    <appender name="springboot"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <!-- <Encoding>UTF-8</Encoding> -->
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>logs/logback/springboot_%d{yyyy-M-d}.log
            </FileNamePattern>
            <MaxHistory>10</MaxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-M-d HH:mm:ss} %t %p %m%n</pattern>
        </encoder>
    </appender>
    <appender name="smile"
        class="ch.qos.logback.core.rolling.RollingFileAppender">
        <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
            <FileNamePattern>logs/logback/smile_%d{yyyy-M-d}.log
            </FileNamePattern>
            <MaxHistory>10</MaxHistory>
        </rollingPolicy>
        <encoder>
            <pattern>%d{yyyy-M-d HH:mm:ss} %t %p %m%n</pattern>
        </encoder>
    </appender>

    <logger name="org.springframework.boot" level="debug"
        additivity="false">
        <appender-ref ref="springboot" />
    </logger>
    <!-- name包必须能够扫描到所以类，包括启动类 -->
    <logger name="com.smile" level="debug" additivity="false">
        <appender-ref ref="smile" />
    </logger>
    <root level="info">
        <appender-ref ref="stdout" />
    </root>
</configuration>  

其中值得注意的是：你配置文件中的包名要能够扫描到你的所有类，包括启动类。

否则，你的日志文件是生成了，但是不会向里面写入内容

启动程序打印日志，日志成功生成：