It's important to remember that the example code used in this course was designed to support learning a specific aspect of Temporal, not to serve as a ready-to-use template for implementing a production system.

For the exercises, make sure to run temporal server start-dev --ui-port 8080 --db-filename clusterdata.db in one terminal to start the Temporal server. For more details on this command, please refer to the Setting up a Local Development Environment chapter in the course. Note: If you're using the Codespaces environment to run this exercise, you can skip this step.

1. macOS
2. Intellij IDEA 2025
3. Java 21

$ temporal server start-dev --ui-port 8080
CLI 1.5.1 (Server 1.29.1, UI 2.42.1)
Server: localhost:7233
UI: http://localhost:8080
Metrics: http://localhost:51289/metrics

见: samples/greeting

见: demos/service-workflow

# 启动微服务
demos/service-workflow/src/main/java/greetingworkflow/Microservice.java
# 启动 worker
demos/service-workflow/src/main/java/greetingworkflow/GreetingWorker.java
# 启动 workflow
demos/service-workflow/src/main/java/greetingworkflow/Starter.java
greeting-workflow 
¡Hola, Cyper!

screenshot