目录
- 1、pom.XML 依赖
- 2、整合logback,打印日志,logback.xml (日志配置文件)
- 3、application.yml指定logback.xml配置目录
- 4、异步线程的跟踪ID链路追踪
- 4、异步定时任务线程接口ScheduledExecutorService的日志链路追踪。在执行前,执行后进行跟踪ID的生成和删除。
- 业务需求
保证一次服务调用,在业务中可以一次追查到本次服务调用涉及的本地服务方法,第三方服务接口。实现日志的链路追踪。保证日志的高查找性。
- 实现步骤
1、pom.xml 依赖
<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> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-logging</artifactId> </dependency> python <!--lombok配置--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.10</version> </dependency> </dependencies>
2、整合logback,打印日志,logback.xml (日志配置文件)
关键代码:[traceId:%X{traceId}],traceId是通过拦截器里MDC.put(traceId, tid)添加。
<?xml version="1.0" encoding="UTF-8"?> <configuration debug="false"> <!--日志存储路径--> <property name="log" value="D:/test/log" /> <!-- 控制台输出 --> <appender name="console" class="ch.qos.logback.core.ConsoleAppender"> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <!--输出格式化--> <pattern>[traceId:%X{traceId}] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder> </appender> <!-- 按天生成日志文件 --> <appender name="file" class="ch.qos.logback.core.rolling.RollingFileAppender"> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <!--日志文件名--> <FileNamePattern>${log}/%d{yyyy-MM-dd}.log</FileNamePhttp://www.devze.comattern> <!--保留天数--> <MaxHistory>30</MaxHistory> </rollingPolicy> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>[traceId:%X{traceId}] %d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern> </encoder> <!--日志文件最大的大小--> <triggeringPolicy class="ch.qos.logback.core.rolling.SizejavascriptBasedTriggeringPolicy"> <MaxFileSize>10MB</MaxFileSize> </triggeringPolicy> </appender> <!-- 日志输出级别 --> <root level="INFO"> <appender-ref ref="console" /> <appender-ref ref="file" /> </root> </configuration>
3、application.yml指定logback.xml配置目录
logging: config: classpath:logback.xml
4、异步线程的跟踪ID链路追踪
业务逻辑是基于线程数据的传递进行处理,主线程传递线程ID到子线程。处理方式:重写线程池的execute(*)、submit(*)方法。
public final class MyThreadPoolTaskExecutor extends ThreadPoolTaskExecutor { public MyThreadPoolTaskExecutor() { super(); } @Override public void execute(Runnable task) { super.execute(TraceIdUtil.wrap(task, MDC.getCopyOfContextMap())); } @Override public <T> Future<T> submit(Callable<T> task) { return super.submit(TraceIdUtil.wrap(task, MDC.getCo编程客栈pyOfContextMap())); } @Override public Future<?> submit(Runnable task) { return super.submit(TraceIdUtil.wrap(task, MDC.getCopyOfContextMap())); } }
4、异步定时任务线程接口ScheduledExecutorService的日志链路追踪。在执行前,执行后进行跟踪ID的生成和删除。
@Bean(name = "scheduledExecutorService") protected ScheduledExecutorService scheduledExecutorService() { return new ScheduledThreadPoolExecutor(corePoolSize, newww.devze.comw BasicThreadFactory.Builder().namingPattern("schedule-pool-%d").daemon(true).build(), new ThreadPoolExecutor.CallerRunsPolicy()) { @Override protected void beforeExecute(Thread thread, Runnable runnable) { super.beforeExecute(thread, runnable); // 为定时任务生成一个 traceId TraceIdUtil.setTraceId(); // 可选:添加任务标识 System.out.println("Scheduled task starting with traceId: " + TraceIdUtil.getTraceId()); } @Override protected void afterExecute(Runnable r, Throwable t) { super.afterExecute(r, t); Threads.printException(r, t); TraceIdUtil.remove(); } }; }
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