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  • spring boot快速入门 10: 日志使用

    第一步:pom 文件

    <?xml version="1.0" encoding="UTF-8"?>
    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
        <modelVersion>4.0.0</modelVersion>
    
        <groupId>com.payease</groupId>
        <artifactId>sell</artifactId>
        <version>0.0.1-SNAPSHOT</version>
        <packaging>jar</packaging>
    
        <name>sell</name>
        <description>Demo project for Spring Boot</description>
    
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>1.5.8.RELEASE</version>
            <relativePath/> <!-- lookup parent from repository -->
        </parent>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
            <java.version>1.8</java.version>
        </properties>
    
        <dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
    
    
            <!-- ===================== mysql驱动 ======================== -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
            </dependency>
            <!-- ===================== jpa ======================== -->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-jpa</artifactId>
            </dependency>
    
            <!-- ===================== @Getter @Setter @Slf4j @Data ======================== -->
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
            </dependency>
    
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
            </plugins>
        </build>
    
    
    </project>

    第二步:你的测试类

    package com.payease;
    
    import lombok.extern.slf4j.Slf4j;
    import org.junit.Test;
    import org.junit.runner.RunWith;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.test.context.junit4.SpringRunner;
    
    /**
     * Created by liuxiaoming on 2017/11/8.
     */
    @RunWith(SpringRunner.class)
    @SpringBootTest
    @Slf4j
    //@Data
    public class LoggerTest {
    
        //private final Logger logger = LoggerFactory.getLogger(LoggerTest.class);
    
        @Test
        public void test1(){
           // logger.debug("debug ...");
           // logger.info("info ...");
           // logger.error("error ...");
            //日志中打印变量的使用样例
    
            String name = "liuxiaoming";
            String password = "123456";
            log.debug("debug ..."); //@Slf4j
            log.info("info ..."+"name:" + name + " ,password:" + password);   //@Slf4j
            log.error("error ..."+"name:{} ,password:{}",name,password); //@Slf4j
        }
    }

    第三步:配置文件application.yml文件中的配置

    spring:
      datasource:
        driver-class-name: com.mysql.jdbc.Driver
        username: root
        password: 1234
        url: jdbc:mysql://127.0.0.1/sell?characterEncoding=utf-8&useSSL=false
      jpa:
        show-sql: true
    server:
      context-path: /sell
    logging:
      pattern:
        console: "%d - %msg%n"  #日志格式 日期 - 信息 空格
    #  path: /Users/liuxiaoming/Documents/ideawork/sell_log #日志路径 默认名字spring.log
      file: /Users/liuxiaoming/Documents/ideawork/sell_log/sell.log #日志文件+路径
      level:  #日志级别
        com.payease.LoggerTest: debug #日志级别指定某个类 也可以步制定类 直接在level: 后面配置
    

    第二种日志的配置方式:

    第一步:注释道application.yml中关于日志的配置

    第二步:新建logback-spring.xml 日志配置文件

    <?xml version="1.0" encoding="UTF-8" ?>
    
    <configuration>
        <!-- 控制台的显示 -->
        <appender name="consoleLog" class="ch.qos.logback.core.ConsoleAppender">
            <layout class="ch.qos.logback.classic.PatternLayout">
                <pattern>
                    %d - %msg%n
                </pattern>
            </layout>
        </appender>
        <!-- 日志文件:fileInfoLog -->
        <appender name="fileInfoLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <!-- 根据范围来过滤 -->
            <filter class="ch.qos.logback.classic.filter.LevelFilter">
                <level>ERROR</level>
                <onMatch>DENY</onMatch>  <!-- 禁止 -->
                <onMismatch>ACCEPT</onMismatch>  <!-- 接受 -->
            </filter>
            <!--滚动-->
            <encoder>
                <pattern>
                    %msg%n
                </pattern>
            </encoder>
            <!--滚动策略-->
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <!--路径-->
                <fileNamePattern>/Users/liuxiaoming/Documents/ideawork/sell_log/info.%d.log</fileNamePattern>
            </rollingPolicy>
        </appender>
    
        <!-- 日志文件:fileErrorLog -->
        <appender name="fileErrorLog" class="ch.qos.logback.core.rolling.RollingFileAppender">
            <!-- 根据范围来过滤 -->
            <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                <level>ERROR</level>
            </filter>
            <encoder>
                <pattern>
                    %msg%n
                </pattern>
            </encoder>
            <!--滚动策略-->
            <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
                <!--路径-->
                <fileNamePattern>/Users/liuxiaoming/Documents/ideawork/sell_log/error.%d.log</fileNamePattern>
            </rollingPolicy>
        </appender>
    
        <!--日志级别-->
        <root level="info">
            <appender-ref ref="consoleLog" />
            <appender-ref ref="fileInfoLog" />
            <appender-ref ref="fileErrorLog" />
        </root>
    
    </configuration>

    第三步:启动项目 查看生成了两个配置文件

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  • 原文地址:https://www.cnblogs.com/liuxiaoming123/p/7808604.html
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