Some Java example projects for practice, demo, research.

Current sub-projects:

• SpringBootExample:　some simple Microservices application with SpringBoot framework.
• SpringCloudExample: some Spring cloud technology related examples.
• springboot-dubbo: dubbo examples with springboot framework.
• DesignPattern: design pattern implementations in Java.
• Bytecode: Java Bytecode operation examples
  • asm: Java ASM Bytecode operation examples, 2 way to do: 1, instrument by classWriter, 2, instrument by "-javaagent".

Have a completed sample with below components, this example depends on zookeeper for service registration:

• example-api: used for exchange contract between dubbo provider & consumer.
• example-provider: dubbo example service provider.
• example-consumer: dubbo example service consumer.

• local zookeeper

• launch local zookeeper service at default port 2181.
• launch "example-provider" as spring-boot application.
• launch "example-consumer" as spring-boot application.
• call consumer api with parameters at http://localhost:8082/hello?greeting=hello, the expected output is "Default Service Provider: hello"

• Consumer application will not work after provider application restart, consumer application still need to restart if provider application restarted.