springboot2.1版本使用logback日志（自己已经验证）

https://blog.csdn.net/weixin_40593587/article/details/86622009

pom文件如下&＃xff1a;

1. xml version&＃61;"1.0" encoding&＃61;"UTF-8"?>
2. <project xmlns&＃61;"http://maven.apache.org/POM/4.0.0" xmlns:xsi&＃61;"http://www.w3.org/2001/XMLSchema-instance"
3. xsi:schemaLocation&＃61;"http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
4. <modelVersion>4.0.0modelVersion>
5. <parent>
6. <groupId>org.springframework.bootgroupId>
7. <artifactId>spring-boot-starter-parentartifactId>
8. <version>2.1.2.RELEASEversion>
9. <relativePath/>
10. parent>
11. <groupId>com.example.phonegroupId>
12. <artifactId>demoartifactId>
13. <version>0.0.1-SNAPSHOTversion>
14. <name>demoname>
15. <description>Demo project for Spring Bootdescription>
17. <properties>
18. <java.version>1.8java.version>
19. properties>
21. <dependencies>
22. <dependency>
23. <groupId>org.springframework.bootgroupId>
24. <artifactId>spring-boot-starter-webartifactId>
25. dependency>
26. <dependency>
27. <groupId>org.springframework.bootgroupId>
28. <artifactId>spring-boot-starter-freemarkerartifactId>
29. dependency>
30. <dependency>
31. <groupId>org.mybatis.spring.bootgroupId>
32. <artifactId>mybatis-spring-boot-starterartifactId>
33. <version>1.3.2version>
34. dependency>
35. <dependency>
36. <groupId>com.alibabagroupId>
37. <artifactId>fastjsonartifactId>
38. <version>1.2.46version>
39. dependency>
41. <dependency>
42. <groupId>mysqlgroupId>
43. <artifactId>mysql-connector-javaartifactId>
44. <scope>runtimescope>
45. dependency>
51. <dependency>
52. <groupId>org.springframework.bootgroupId>
53. <artifactId>spring-boot-starter-testartifactId>
54. <scope>testscope>
55. dependency>
56. dependencies>
58. <build>
59. <plugins>
60. <plugin>
61. <groupId>org.springframework.bootgroupId>
62. <artifactId>spring-boot-maven-pluginartifactId>
63. plugin>
64. plugins>
65. build>
67. project>

接下来我们需要在resources目录下建立一个xml文件&＃xff0c;就叫做logback-spring.xml;为什么要起这个名字呢&＃xff0c;因为起这个名字springboot2.1会自己去找该文件&＃xff0c;里面内容如下&＃xff1a;

1. xml version&＃61;"1.0" encoding&＃61;"UTF-8" ?>
2. <configuration>
4. <appender name&＃61;"consoleApp" class&＃61;"ch.qos.logback.core.ConsoleAppender">
5. <layout class&＃61;"ch.qos.logback.classic.PatternLayout">
6. <pattern>
7. %date{yyyy-MM-dd HH:mm:ss.SSS} %-5level[%thread]%logger{56}.%method:%L -%msg%n
8. pattern>
9. layout>
10. appender>
12. <appender name&＃61;"fileInfoApp" class&＃61;"ch.qos.logback.core.rolling.RollingFileAppender">
13. <filter class&＃61;"ch.qos.logback.classic.filter.LevelFilter">
14. <level>ERRORlevel>
15. <onMatch>DENYonMatch>
16. <onMismatch>ACCEPTonMismatch>
17. filter>
18. <encoder>
19. <pattern>
20. %date{yyyy-MM-dd HH:mm:ss.SSS} %-5level[%thread]%logger{56}.%method:%L -%msg%n
21. pattern>
22. encoder>
24. <rollingPolicy class&＃61;"ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
26. <fileNamePattern>app_log/log/app.info.%d.logfileNamePattern>
27. rollingPolicy>
28. appender>
30. <appender name&＃61;"fileErrorApp" class&＃61;"ch.qos.logback.core.rolling.RollingFileAppender">
31. <filter class&＃61;"ch.qos.logback.classic.filter.ThresholdFilter">
32. <level>ERRORlevel>
33. filter>
34. <encoder>
35. <pattern>
36. %date{yyyy-MM-dd HH:mm:ss.SSS} %-5level[%thread]%logger{56}.%method:%L -%msg%n
37. pattern>
38. encoder>
41. <rollingPolicy class&＃61;"ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
43. <fileNamePattern>app_log/log/app.err.%d.logfileNamePattern>
46. <MaxHistory>1MaxHistory>
48. rollingPolicy>
49. appender>
50. <root level&＃61;"INFO">
51. <appender-ref ref&＃61;"consoleApp"/>
52. <appender-ref ref&＃61;"fileInfoApp"/>
53. <appender-ref ref&＃61;"fileErrorApp"/>
54. root>
55. configuration>

这样子就可以了&＃xff0c;这样我们在控制器就可以使用了&＃xff1a;

import org.slf4j.LoggerFactory;、//注意导包的时候是导进去这个包&＃xff1b;

private org.slf4j.Logger logger&＃61;LoggerFactory.getLogger(this.getClass());

调用接口如下&＃xff1a;

1. &＃64;RequestMapping("/addInformation")
2. public Map addUser(&＃64;RequestBody Information information) {
4. System.out.println("开始新增...");
5. System.out.println(information);
6. System.out.println(information.getImei());
7. System.out.println(information.getKey());
8. boolean flag&＃61; informationService.addInformation(information);
9. // return flag;
10. logger.info(" i am info");
11. logger.error("i am error");
12. logger.warn(" i am warn");
13. logger.debug(" i am debug");
14. return jsonCommon.SucessRequest();

接下来访问的时候就会显示

 并会将info和error的信息打印到了我们指定的文件中&＃xff0c;文件是自动生成的&＃xff1a;我们在logback-spring.xml中配置了error的信息放在了

app_log/log/app.err.%d.log这个文件&＃xff0c;info的信息会放在这个文件

app_log/log/app.info.%d.log

访问接口的时候就会自动生成这些目录和文件&＃xff1b;目录如下所示&＃xff1a;

运行访问成功。