Sleuth实现日志采样

        <!--Sleuth的依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-sleuth</artifactId>
            <version>1.1.3.RELEASE</version>
        </dependency>

#设置抽样采集率100%
spring.sleuth.sampler.probability=1
#设置日志级别为debug
logging.level.org.springframework.cloud.sleuth=debug

    //获取Logger对象
    private static Logger logger= LoggerFactory.getLogger(HelloController.class);
    
    @GetMapping("/hello")
    public String hello(@RequestParam(value = "name",required = false) String name){
        if (StringUtils.isEmpty(name)){
            name=this.name;
        }
        logger.info("获得了请求");
        return name;
    }