Java RPC Frameworks

This project is to implement and compare several common Java RPC frameworks.

• Java RMI (TODO)
• Hessian
• Dubbo (TODO)
• MORE...

Comparison:

Type	Serialization/Deserialization	Data Transfer Protocol
Java RMI	Java Serialization	HTTP
Hessian	Hessian Serialization	HTTP
Dubbo	Configurable - Hessian Serialization	TCP

How RPC works

How RPC implements

User Story

Functionality

As a user of App A, I want to get the key-value mapping of some stock's price by querying App B's API.

example:

• A's input: apple
• B's output: 150

API

• url: /get_stock_price
• method signature: double getStockPrice(String stockName)

Hessian

Run Instruction

• import as maven project
• run HessianServer.java
• run HessianClient.java

Sample Output

Server

o.example.hessian.server.HessianServer   : Started HessianServer in 0.726 seconds (JVM running for 1.323)
o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
o.s.web.servlet.DispatcherServlet        : Completed initialization in 0 ms

Client

=== start ===
apple: 150.0
taobao: -1.0
=== end ===

Reference

• http://hessian.caucho.com
• https://www.baeldung.com/spring-remoting-hessian-burlap

Reference

• https://zhuanlan.zhihu.com/p/46818259