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【java日记】07：日志和git

news 2026/5/12 1:42:45

HTTP响应码

信息响应 (100–199)
成功响应 (200–299)
重定向消息 (300–399)
客户端错误响应 (400–499)
服务端错误响应 (500–599)

日志

在resources目录下，创建文件logback-spring.xml

<?xml version="1.0" encoding="UTF-8"?><configuration><contextName>community</contextName><propertyname="LOG_PATH"value="D:/work/2026/cowBook/data"/><propertyname="APPDIR"value="community"/><!-- error file --><appendername="FILE_ERROR"class="ch.qos.logback.core.rolling.RollingFileAppender"><file>${LOG_PATH}/${APPDIR}/log_error.log</file><rollingPolicyclass="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><fileNamePattern>${LOG_PATH}/${APPDIR}/error/log-error-%d{yyyy-MM-dd}.%i.log</fileNamePattern><timeBasedFileNamingAndTriggeringPolicyclass="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"><maxFileSize>5MB</maxFileSize></timeBasedFileNamingAndTriggeringPolicy><maxHistory>30</maxHistory></rollingPolicy><append>true</append><encoderclass="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><pattern>%d %level [%thread] %logger{10} [%file:%line] %msg%n</pattern><charset>utf-8</charset></encoder><filterclass="ch.qos.logback.classic.filter.LevelFilter"><level>error</level><onMatch>ACCEPT</onMatch><onMismatch>DENY</onMismatch></filter></appender><!-- warn file --><appendername="FILE_WARN"class="ch.qos.logback.core.rolling.RollingFileAppender"><file>${LOG_PATH}/${APPDIR}/log_warn.log</file><rollingPolicyclass="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><fileNamePattern>${LOG_PATH}/${APPDIR}/warn/log-warn-%d{yyyy-MM-dd}.%i.log</fileNamePattern><timeBasedFileNamingAndTriggeringPolicyclass="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"><maxFileSize>5MB</maxFileSize></timeBasedFileNamingAndTriggeringPolicy><maxHistory>30</maxHistory></rollingPolicy><append>true</append><encoderclass="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><pattern>%d %level [%thread] %logger{10} [%file:%line] %msg%n</pattern><charset>utf-8</charset></encoder><filterclass="ch.qos.logback.classic.filter.LevelFilter"><level>warn</level><onMatch>ACCEPT</onMatch><onMismatch>DENY</onMismatch></filter></appender><!-- info file --><appendername="FILE_INFO"class="ch.qos.logback.core.rolling.RollingFileAppender"><file>${LOG_PATH}/${APPDIR}/log_info.log</file><rollingPolicyclass="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"><fileNamePattern>${LOG_PATH}/${APPDIR}/info/log-info-%d{yyyy-MM-dd}.%i.log</fileNamePattern><timeBasedFileNamingAndTriggeringPolicyclass="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"><maxFileSize>5MB</maxFileSize></timeBasedFileNamingAndTriggeringPolicy><maxHistory>30</maxHistory></rollingPolicy><append>true</append><encoderclass="ch.qos.logback.classic.encoder.PatternLayoutEncoder"><pattern>%d %level [%thread] %logger{10} [%file:%line] %msg%n</pattern><charset>utf-8</charset></encoder><filterclass="ch.qos.logback.classic.filter.LevelFilter"><level>info</level><onMatch>ACCEPT</onMatch><onMismatch>DENY</onMismatch></filter></appender><!-- console --><appendername="STDOUT"class="ch.qos.logback.core.ConsoleAppender"><encoder><pattern>%d %level [%thread] %logger{10} [%file:%line] %msg%n</pattern><charset>utf-8</charset></encoder><filterclass="ch.qos.logback.classic.filter.ThresholdFilter"><level>debug</level></filter></appender><loggername="com.nowcode.community"level="debug"/><rootlevel="info"><appender-refref="FILE_ERROR"/><appender-refref="FILE_WARN"/><appender-refref="FILE_INFO"/><appender-refref="STDOUT"/></root></configuration>

会根据日志级别，自动筛选，并超出5mb后分出新的文件存储

进行logger测试

@SpringBootTest@ContextConfiguration(classes=CommunityApplication.class)publicclassLoggerTests{privatestaticfinalLoggerlogger=LoggerFactory.getLogger(LoggerTests.class);@TestpublicvoidtestLogger(){System.out.println(logger.getName());logger.debug("debug log");logger.info("info log");logger.warn("warn log");logger.error("error log");}}