Spring Boot（四）之添加log配置

左手的ㄟ右手 2022-05-16 09:07 180阅读 0赞

### Spring Boot（四）之添加log配置 ###

#### 1.在项目中创建一个logback.xml文件 ####

文件内容如下：

<?xml version="1.0" encoding="UTF-8"?>
    <configuration scan="false">
    
        
        <property name="logPath" value="/Webapp/springboot-mybatis-demo/log"/>
        <property name="system" value="/springboot-mybatis-demo"/>
    
        
        <contextListener class="ch.qos.logback.classic.jul.LevelChangePropagator">
            <resetJUL>true</resetJUL>
        </contextListener>
    
    
        <appender name="console" class="ch.qos.logback.core.ConsoleAppender">
            <encoder>
                <pattern>%date|%thread|%5level|%logger{50}|%L|%msg%n</pattern>
            </encoder>
        </appender>
    
        
        <appender name="errorLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
            
            <file>${logPath}/${system}_error.log</file>
            
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${logPath}/${system}_error.%d{yyyy-MM-dd}.%i.log.zip
                </fileNamePattern>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    
                    <maxFileSize>100MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
                
                <maxHistory>7</maxHistory>
            </rollingPolicy>
            <encoder>
                <pattern>%date|%thread|%5level|%logger{50}|%L|%msg%n</pattern>
            </encoder>
        </appender>
    
        <appender name="springbootLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <file>${logPath}/${system}_springbootLog.log</file>
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <fileNamePattern>${logPath}/${system}_springbootLog.%d{yyyy-MM-dd}.%i.log.zip
                </fileNamePattern>
                <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
                    <maxFileSize>100MB</maxFileSize>
                </timeBasedFileNamingAndTriggeringPolicy>
                <maxHistory>7</maxHistory>
            </rollingPolicy>
            <encoder>
                <pattern>%date|%thread|%5level|%logger{50}|%L|%msg%n
                </pattern>
            </encoder>
        </appender>
    
        
        <root level="INFO">
            <appender-ref ref="springbootLog"/>
            <appender-ref ref="errorLog"/>
            <appender-ref ref="console"/>
        </root>
    
    </configuration>

[logback的使用和logback.xml详解][logback_logback.xml]

#### 2.在application.yml中添加logback ####

# logger
    logging:
        config: classpath:logback.xml

![image][]

#### 3.在代码中使用Logger ####

@Service(value = "userService")
    public class UserServiceImpl implements UserService { 
    
        private Logger logger = LoggerFactory.getLogger(UserServiceImpl.class);
    
        @Autowired
        private UserDao userDao;
    
        @Override
        public int addUser(User user) {
            logger.info("addUser: " + user);
            return userDao.add(user);
        }
    
        @Override
        public User searchById(String userId) {
            logger.info("searchById: " + userId);
            return userDao.searchById(userId);
        }
    
        @Override
        public List<User> searchAll() {
            logger.info("searchAll");
            return userDao.searchAll();
        }
    }

#### 4.测试logback是否生效 ####

请求searchAll接口，查看log

![image][image 1]

![image][image 2]

[logback_logback.xml]: https://www.cnblogs.com/warking/p/5710303.html
[image]: /images/20220516/e56a53f4b7fa4ab49b1a3119183e5c64.png
[image 1]: /images/20220516/297a5542d3cb41c6b6d90f86e748272d.png
[image 2]: /images/20220516/c1d5d0f2e7fe4e948e42b22c01b55062.png