How do you implement distributed tracing in Spring Boot?

Use Spring Cloud Sleuth or Micrometer Tracing:\n\n@RestController\npublic class TracingController {\n @Autowired\n private Tracer tracer;\n \n @GetMapping("/trace")\n public String traceEndpoint() {\n Span span = tracer.nextSpan().name("custom-operation").start();\n try {\n // Business logic\n span.tag("operation.type", "data-processing");\n return "Success";\n } finally {\n span.end();\n }\n }\n}