springboot中logback打印日志

快来打我* 2022-05-22 10:11 313阅读 0赞

#### 转载于：[https://blog.csdn.net/fan510988896/article/details/54409790][https_blog.csdn.net_fan510988896_article_details_54409790] ####

#### 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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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.           
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.       
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****>**

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

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启动程序打印日志，日志成功生成：

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