Java Practice

Project

Id	Project	Description
1	code	Simple basic java code
2	simple-api	Simple java api
3	word	Word app
3	producer	Simple kafka producer
4	consumer	Simple kafka consumer
5	utility	Utility
6	order-service	Order service
7	inventory-service	Inventory service

Event driven microservices simple app

The app includes project 5, 6 and 7 in the list of projects.

1. Setup

• Ensure you run database already (including creating database and optionally creating tables and initializing data for tables)(read more in the next section).
• Build utility first, it is used by others so you alway ensure it is built first.

Setup database

• 1. Run docker container

make edmysql

• 2. Execute container

docker exec -it ed_sql_container bash

• 3. Login

mysql -u root -p

Then enter java as password

• 4. Switch to database

use java_app;

• 5. Check whether tables were created or not

show tables;

if tables were not created, create them.

Event-driven small app

1. Run kafka server

make conduktor

• I create kafka by conduktor docker, after running successfully, you can go http://localhost:8080/ to see Conduktor dashboard. (email and password can be modified in CDK_ADMIN_EMAIL and CDK_ADMIN_PASSWORD)

• Noticed that Bootstrap server runs in 127.0.0.1:19092

References

• https://learn.conduktor.io/kafka/

Issues

can't import packages on VSCode

• 1. Open search box
• 2. Search: Java: clean Java Language Server Workspace