Configure the springboot log. The output level is info. An error is reported when running:

Caused by: org.springframework.boot.context.properties.bind.BindException: Failed to bind properties under 'logging.level' to java.util.Map<java.lang.String, java.lang.String>
    at org.springframework.boot.context.properties.bind.Binder.handleBindError(Binder.java:250)
    at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:226)
    at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:210)
    at org.springframework.boot.context.properties.bind.Binder.bind(Binder.java:166)
    at org.springframework.boot.context.logging.LoggingApplicationListener.setLogLevels(LoggingApplicationListener.java:307)
    at org.springframework.boot.context.logging.LoggingApplicationListener.initializeFinalLoggingLevels(LoggingApplicationListener.java:290)
    at org.springframework.boot.context.logging.LoggingApplicationListener.initialize(LoggingApplicationListener.java:238)
    at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEnvironmentPreparedEvent(LoggingApplicationListener.java:200)
    at org.springframework.boot.context.logging.LoggingApplicationListener.onApplicationEvent(LoggingApplicationListener.java:173)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)
    at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127)
    at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:74)

The application.yml file is configured as follows:

logging:
  pattern:
    console: "%d - %msg%n" #     Define the format of the log to be printed
# dateformat: # Set the log date format
# file: # Defines the log format for output to the log file
# config: # The location of the logging configuration file. For example, classpath:logback.xml.
  file: E:/sell/sell.log # Set the log file where the logs are saved
# max-history:
# max-size: # Set the maximum size of the log file # Set the log level
# path:/# location of the log file, e.g. /var/log
  register-shutdown-hook: false # Register a shutdown hook for the logging system when it is initialized.
  level: info

The reason is that the log level is configured incorrectly. It should be configured as

level:
    root: info

The reasons are as follows:

Find the logging log level configuration shown in the following figure in the official document. The official address is: https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#boot -Features custom log levels

roughly means that we can use trace,   DEBUG,   INFO,   WARN,   ERROR,   FATAL,   perhaps   Off to specify the spring project log level. Its format is:
logging. Level. < logger-name>=< level>
therefore, we need to configure a logger name when configuring the log level, so we can specify a root or a package path as shown in the figure above. Configuring logging. Level. Root = warn means configuring the root logger, so the following configuration ideas are:
logging. Level. Root = warn
logging.level.org.springframework.web=DEBUG
The configuration of logging. Level. Org. Hibernate = error
is that org.springframework.web is the debug level, org.hibernate is the error level, and the log output level of other projects is warn