| Package | Description | 
|---|---|
| org.springframework.boot.context.logging | Logging integration with Spring's Application Context. | 
| org.springframework.boot.logging | Support and abstractions across several logging libraries. | 
| org.springframework.boot.logging.java | Support for 'Java Util Logging'. | 
| org.springframework.boot.logging.log4j2 | Support for the Log4j 2 logging library. | 
| org.springframework.boot.logging.logback | Support for the Logback logging library. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected void | LoggingApplicationListener. initializeLogLevel(LoggingSystem system,
                  LogLevel level) | 
| protected void | LoggingApplicationListener. setLogLevels(LoggingSystem system,
            org.springframework.core.env.Environment environment) | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AbstractLoggingSystemAbstract base class for  LoggingSystemimplementations. | 
| class  | Slf4JLoggingSystemAbstract base class for  LoggingSystemimplementations that utilize SLF4J. | 
| Modifier and Type | Method and Description | 
|---|---|
| static LoggingSystem | LoggingSystem. get(ClassLoader classLoader)Detect and return the logging system in use. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | JavaLoggingSystem | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | Log4J2LoggingSystemLoggingSystemfor Log4j 2. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | LogbackLoggingSystemLoggingSystemfor logback. | 
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