1. <!-- log related -->
2. <dependency> <!-- exclude掉spring-boot的默认log配置 -->
3. <groupId>org.springframework.boot</groupId>
4. <artifactId>spring-boot-starter</artifactId>
5. <exclusions>
6. <exclusion>
7. <groupId>org.springframework.boot</groupId>
8. <artifactId>spring-boot-starter-logging</artifactId>
9. </exclusion>
10. </exclusions>
11. </dependency>
12. <dependency> <!-- 引入log4j2依赖 -->
13. <groupId>org.springframework.boot</groupId>
14. <artifactId>spring-boot-starter-log4j2</artifactId>
15. </dependency>
16. <dependency>  <!-- 加上这个才能辨认到log4j2.yml文件 -->
17. <groupId>com.fasterxml.jackson.dataformat</groupId>
18. <artifactId>jackson-dataformat-yaml</artifactId>
19. </dependency>
20. <!-- end of log related -->

1. Configuration:
2. status: warn
3. Properties: # 定义全局变量
4. Property: # 缺省配置（用于开发环境）。其他环境需要在VM参数中指定，如下：
5. #测试：-Dlog.level.console=warn -Dlog.level.xjj=trace
6. #生产：-Dlog.level.console=warn -Dlog.level.xjj=info
7. - name: log.level.console
8. value: trace
9. - name: log.level.xjj
10. value: trace
11. - name: log.path
12. value: /opt/logs
13. - name: project.name
14. value: my-spring-boot
15. Appenders:
16. Console:  #输出到控制台
17. name: CONSOLE
18. target: SYSTEM_OUT
19. ThresholdFilter:
20. level: ${sys:log.level.console} # “sys:”表示：如果VM参数中没指定这个变量值，则使用本文件中定义的缺省全局变量值
21. onMatch: ACCEPT
22. onMismatch: DENY
23. PatternLayout:
24. pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS}:%4p %t (%F:%L) - %m%n"
25. RollingFile: # 输出到文件，超过128MB归档
26. - name: ROLLING_FILE
27. ignoreExceptions: false
28. fileName: ${log.path}/${project.name}.log
29. filePattern: "${log.path}/$${date:yyyy-MM}/${project.name}-%d{yyyy-MM-dd}-%i.log.gz"
30. PatternLayout:
31. pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS}:%4p %t (%F:%L) - %m%n"
32. Policies:
33. SizeBasedTriggeringPolicy:
34. size: "128 MB"
35. DefaultRolloverStrategy:
36. max: 1000
37. Loggers:
38. Root:
39. level: info
40. AppenderRef:
41. - ref: CONSOLE
42. - ref: ROLLING_FILE
43. Logger: # 为com.xjj包配置特殊的Log级别，方便调试
44. - name: com.xjj
45. additivity: false
46. level: ${sys:log.level.xjj}
47. AppenderRef:
48. - ref: CONSOLE
49. - ref: ROLLING_FILE

{ Configuration:

   { status: 'warn',

     Properties:

      { Property:

         [ { name: 'log.level.console', value: 'trace' },

           { name: 'log.level.xjj', value: 'trace' },

           { name: 'log.path', value: '/opt/logs' },

           { name: 'project.name', value: 'my-spring-boot' } ] },

     Appenders:

      { Console:

         { name: 'CONSOLE',

           target: 'SYSTEM_OUT',

           ThresholdFilter:

            { level: '${sys:log.level.console}',

              onMatch: 'ACCEPT',

              onMismatch: 'DENY' },

           PatternLayout: { pattern: '%d{yyyy-MM-dd HH:mm:ss,SSS}:%4p %t (%F:%L) - %m%n' } },

        RollingFile:

         [ { name: 'ROLLING_FILE',

             ignoreExceptions: false,

             fileName: '${log.path}/${project.name}.log',

             filePattern: '${log.path}/$${date:yyyy-MM}/${project.name}-%d{yyyy-MM-dd}-%i.log.gz',

             PatternLayout: { pattern: '%d{yyyy-MM-dd HH:mm:ss,SSS}:%4p %t (%F:%L) - %m%n' },

             Policies: { SizeBasedTriggeringPolicy: { size: '128 MB' } },

             DefaultRolloverStrategy: { max: 1000 } } ] },

     Loggers:

      { Root:

         { level: 'info',

           AppenderRef: [ { ref: 'CONSOLE' }, { ref: 'ROLLING_FILE' } ] },

        Logger:

         [ { name: 'com.xjj',

             additivity: false,

             level: '${sys:log.level.xjj}',

             AppenderRef: [ { ref: 'CONSOLE' }, { ref: 'ROLLING_FILE' } ] } ] } } }

1. @RunWith(SpringJUnit4ClassRunner.class)
2. @SpringApplicationConfiguration(classes = MySpringBootApplication.class)
3. public class MySpringBootApplicationTests {
4. protected final Logger logger = LoggerFactory.getLogger(this.getClass());
5. protected final ObjectMapper objectMapper = new ObjectMapper();
6. @Test
7. public void contextLoads() {
8. logger.trace("I am trace log.");
9. logger.debug("I am debug log.");
10. logger.warn("I am warn log.");
11. logger.error("I am error log.");
12. }
13. }

1. .   ____          _            __ _ _
2. /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
3. ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
4. \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
5. '  |____| .__|_| |_|_| |_\__, | / / / /
6. =========|_|==============|___/=/_/_/_/
7. :: Spring Boot ::        (v1.3.5.RELEASE)
8. 2016-05-25 15:36:30,245:INFO main (StartupInfoLogger.java:48) - Starting MySpringBootApplicationTests on WIN-UCBBGRHGRK9 with PID 27276 (C:\workspace-sts\my-spring-boot\target\test-classes started by Xu in C:\workspace-sts\my-spring-boot)
9. 2016-05-25 15:36:30,245:DEBUG main (StartupInfoLogger.java:51) - Running with Spring Boot v1.3.5.RELEASE, Spring v4.2.6.RELEASE
10. 2016-05-25 15:36:30,245:INFO main (SpringApplication.java:666) - No active profile set, falling back to default profiles: default
11. 2016-05-25 15:36:30,285:INFO main (AbstractApplicationContext.java:578) - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@638ef7ed: startup date [Wed May 25 15:36:30 CST 2016]; root of context hierarchy
12. 2016-05-25 15:36:30,522:INFO background-preinit (Version.java:30) - HV000001: Hibernate Validator 5.2.4.Final
13. 2016-05-25 15:36:31,673:INFO main (StartupInfoLogger.java:57) - Started MySpringBootApplicationTests in 1.726 seconds (JVM running for 2.749)
14. 2016-05-25 15:36:31,681:TRACE main (MySpringBootApplicationTests.java:20) - I am trace log.
15. 2016-05-25 15:36:31,681:DEBUG main (MySpringBootApplicationTests.java:21) - I am debug log.
16. 2016-05-25 15:36:31,682:WARN main (MySpringBootApplicationTests.java:22) - I am warn log.
17. 2016-05-25 15:36:31,682:ERROR main (MySpringBootApplicationTests.java:23) - I am error log.
18. 2016-05-25 15:36:31,689:INFO Thread-1 (AbstractApplicationContext.java:960) - Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@638ef7ed: startup date [Wed May 25 15:36:30 CST 2016]; root of context hierarchy